Evergreen (H.K.) PCB Limited

Soldered with electronic components such as transistors, resistors and circuits, this PCB depicts punched holes at corners for effortless mounting in machines. Its standard dual-layer construction further boasts immersion gold finish that guarantees a long service life.

Features:
&bull; Material: FR-4.
&bull; Standard rectangular panel.
&bull; Dual-layer construction.
&bull; Guarantee a long service life.
&bull; Soldered with electronic components.
&bull; Depict punched holes at corners.
&bull; Ensure effortless mounting.
&bull; Suitable for a wide range of computing devices, machines and electronics.
&bull; Layer: 2.
&bull; Thickness: 0.4mm.
&bull; Finishing: immersion gold.
&bull; Solder mask color: matte black.

Applications:
&bull; Pulse PCB.
&bull; Coil bonding.

Rigid PCB

This PCB is a must-have in your electronic devices that connects capacitors, resistors and other active components for effective use. Its robust multi-layer housing depicts several circular accents with etched current pathways and soldered parts of durable create.&nbsp;

Features:
&bull; Material: FR-4.
&bull; Slim housing.
&bull; Robust multi-layer construction.
&bull; Showcase several circular accents with etched current pathways and soldered parts.
&bull; Promise durable use.
&bull; A must-have component in machineries, electronic devices and more.
&bull; Layer: 4-layer.
&bull; Thickness: 0.4mm.
&bull; Finishing: flash gold plating.
&bull; Solder mask color: green.

Applications:
&bull; HDI PCB COB PCB.
&bull; Wire bonding PCB.
&bull; Smart watch PCB.
&bull; Wearable watch PCB.

This PCB takes on a quadrilateral panel design, comprising 8 circular accents with soldered circuits, resistors, transistors to boast functionality. Its thin housing further highlights punched holes at corners that ease installation in computers, motors and more.

Features:
&bull; Material: FR-4.
&bull; Quadrilateral panel design.
&bull; Thin, double-layer housing.
&bull; Comprise 8 circular accents with soldered electronic parts.
&bull; Highlight punched holes at corners for installation.
&bull; Perfect for functional use in computers, motors and other machines.
&bull; Layer: 2.
&bull; Thickness: 0.6mm.
&bull; Finishing: OSP Entak.
&bull; Solder mask color: green.

Applications:
&bull; Motor PCB.
&bull; Push back tooling.
&bull; Step motor PCB.
&bull; Halogen-free PCB.

Guangdong South HongMing (HK) Electronic Science & Technology Co Ltd

This varistor is a type of metal-oxide varistor (MOV). The boundary between the zinc oxide grains and the neighboring composition forms a diode junction that allows current to flow from one direction only. The diameter of the varistor is customizable upon requests.	Wide applications.	Available in various designs.

Zinc Oxide Varistor

Power NTC Thermistor has an excellent non-linearity characteristic for the resistance and temperature, its appliance is an easy and effective method to protect electronic device through surge current restrainning.

 Feature of Power Thermistor  	 Power NTC thermistors are in small size but with a high power that to restrain the
	Surge current. 	 Power NTC thermistors&nbsp; possess the electronic character of fast reflection, high reliability and long-life for use. 	 The material has a high constant as &ldquo;B value&rdquo; with small remained resistance. 	 Power NTC thermistors have a large application range integrate products&nbsp; series.   Rage of Application  	 Switch mode power supply,&nbsp; Adapter. 	 Transformer,&nbsp; LED driver circuit. 	 Electronic rectifier,&nbsp; electronic heater. 	 Electric&nbsp; motor. 	 It has a protected function for RT , display, lighting device and circuit of different electronic equipment.   Certificates  	 Safety Approval Certificate: UL / CUL 	 Quality management system Certificates: &nbsp;ISO9001:2008&nbsp; 	 ISO14001:2004   Electrical Characteristics  	 Rated Zero-Power ResistanceRN (&Omega;) : 5&plusmn;20% Ambient temp. Range:25℃&plusmn;2℃(TA).
	Testing voltage: 1.5VDC
	After placing for 1~2 hours under TA, the resistance value shall be measured. 	 Thermal Dissipation Constant &delta;(mW/℃) : &ge;15 , The thermal dissipation constant(&delta;) could be calculated by the ratio of a change in power dissipation(&Delta;P) of the thermistor to a change in temperature(&Delta;T) of the thermistor at a specified ambient temperature 	 Thermal Time Constant &tau;(s) : &le;68, The time(&tau; shall be measured within which the temperature change of NTC thermistor is reached at 63.2% of the ambient temperature change under zero power condition 	 Material Constant B : 2700&plusmn;10% B=T1T2/( T2- T1) &times;Ln (R1/R2), R1 , R2 is zero-power resistance at T1 , T2
	T1 = 298.15 K(25℃)&nbsp; T2 = 323.15 K(50℃) 	 Max.Steady State Current (A) : visible mechanical damage.
	&Delta;RN&nbsp;/ RN&nbsp;&le;20% (&Delta;R =∣RN-RN&#39;∣), 25℃&plusmn;2℃Ambient temp. Range, 5.0A&nbsp; Testing Current  

NTC with UL  

Key Specifications/ Special Features:1KV ~ 6KV Chip single layer ceramic capacitor HIGH VOLTAGE CHIP CERAMIC CAPACITORSHigh reliability with resin molded constructionHigh reliability with disc capacitor elementHigh moisture proof function and applicabilityApplied to SMT productionWide rated voltage range 1 to 6KVDetailed specification will be provided against inquiry.APPLICATION Back lighting inverterSnubbercircuit of switching power supplyVarious high voltage electronic circuit Specification Temperature characteristics : NPO, SL, Y5P, Y5U, Y5VRated voltage : 1KVDC 2KVDC 3KBDC 4KVDC 5KVDC 6KVDCCapacitance : 10pF ~ 6800pFCapacitance tolerance : +-5% +-10% +-20% -20%~80%

SMD high voltage ceramic capacitor Y1 400V 471

Fenghua (Hong Kong) Electronics Ltd.

Chip resistors are available in different resistance values, tolerance levels, and power ratings to accommodate various circuit requirements. The resistance values can range from a few ohms to several megaohms, providing flexibility for different applications. The tolerance level indicates the acceptable deviation from the specified resistance value, ensuring accurate and consistent performance. Common sizes of chip resistors include: 0402: This size measures 0.04 inches by 0.02 inches (1.0mm by 0.5mm) and is commonly used in compact electronic devices and densely populated circuit boards. 0603: These resistors have dimensions of 0.06 inches by 0.03 inches (1.6mm by 0.8mm) and are widely used in consumer electronics, telecommunications, and automotive applications. 0805: With measurements of 0.08 inches by 0.05 inches (2.0mm by 1.25mm), 0805 resistors are popular for their versatility and ease of handling. They are commonly found in a wide range of electronic circuits. 1206: These resistors measure 0.12 inches by 0.06 inches (3.2mm by 1.6mm) and are often used in various electronic applications that require higher power handling capabilities. 1210: With dimensions of 0.12 inches by 0.10 inches (3.2mm by 2.5mm), 1210 resistors offer larger power ratings and are suitable for applications that require higher power dissipation. These sizes represent some of the most commonly used chip resistor dimensions. However, there are many other sizes available to meet specific circuit requirements. It is essential to select the appropriate chip resistor size based on factors such as power requirements, board space, and thermal considerations. 

Chip Resistor (AEC-Q200)

 	 Varistor is a sort of sensitive component which resistance value can vary with the applied voltage, it is widely used in the instantaneous overvoltage protection and surge absorption of Electronic-electrical equipment.      Features:     	 Great range of varistor voltage:  18V to 1.8KV  	 Fast response to transient voltage (ns) 	 High great withstanding surge current 	 Excellent non-linearity voltage 	 Symmetric V-I characteristics 	 No following-on current 	 Long life      Range of application:     	 Used in surge protection for IC, transistor, diode semiconductor switch circuit. 	 Used in communication, telemetering, electrical control and various electronic equipment. 	 Suppress the instantaneous overvoltage caused by electromagnetic valve and relay. 	 Supprss the instantaneous overvoltage caused by power supply. 	 Suppress the instantaneous overvoltage caused by electronic circuits 	 Lightning protection for various kind of electronic appliances.      Technical conditions:&nbsp;     	 Carry our standard of GB/T10193, GB/T10194, GB/T10195-1997 and SJ/T10348-10349. 	 Measurement conditions For varistors of 05D, 07D, 10D, 14D, 20D Series, voltage across the varistor measured under 1 m A DC. 	 Varistor voltage: The voltage between two terminals with the specified measuring current applied is expressed by letter V. 	 Maximum continuous operating voltage: The maximum sinusoidal RMS voltage or maximum DC voltage that can be applied continuously in the specified environmental temperature range. 	 Working ambient temperature: -40C ~ +85C&nbsp; 	 Storage temperature range: -40C ~ +125C  

MOV Varistor

Q-Nitto Hong Kong Limited

Chip Resistors  Model No. : CRCW080510K0FKEAHP Spec : RES, THICK FILM, 10K, 1%, 0.33W, 0805; R Brand : VISHAY MOQ : 10pcs+ Other information : RoHs Lead Time : 15-30 day 

Chip Resistors (CRCW080510K0FKEAHP)

Chip Resistors   Model No. : CRCW08051M00FKEAHP Spec : RES, 1M, 1%, 0.5W, 0805, THICK FILM Brand : VISHAY MOQ : 10pcs+ Other information : RoHs Lead Time : 15-30 day 

Chip Resistors (CRCW08051M00FKEAHP)

Microtech Technology Co Ltd

   No.: MD-ADP-070   Interface: multimedia player board   7.0''   Embedded controller board.   Available in different sizes.  If you have any question, please connect us for more details!
NO.0755-83725193

7.0" TFT Controller Boards with AV Input

Model No. : CRCW080510K0FKEAHP. Material : N/A Purpose : Use for automotive and various fields Spec : RES,10K,1%,0.33W,0805;R,THICK FILM Product Width : 1.25mm Description : The Vishay CRCW-HP e3 series are pulse proof, high power thick film chip resistors. The CRCW-HP e3 series resistors have pure tin solder contacts on the Ni barrier layer that provides compatibility with the reflow soldering process.  Excellent pulse load capability Enhanced power rating Double side printed resistor element Protective overglaze AEC-Q200 qualified, rev. C compliant Available in ±0.5%, ±1% and ± 5% tolerance Zero ohm jumper are available for all sizes with very high current Power rating is double than the D/CRCW e3 series Superior ant surge and pulse characteristics compared to D/CRCW e3 series  Resistance :10kohm Power Rating :500mW Resistor Technology :Thick Film Product Range :CRCW-HP e3 Series Voltage Rating :150V Operating Temperature Max :155°C SVHC :No SVHC (27-Jun-2024) Resistance Tolerance :± 1% Resistor Case / Package :0805 [2012 Metric] Resistor Type :Pulse Proof, High Power Temperature Coefficient :± 100ppm/K Product Length :2mm Operating Temperature Min :-55°C Qualification :AEC-Q200 More details : please refer to catalogues  MOQ : 10pcs   

High power thick film chip resistors (CRCW080510K0FKEAHP.)

Amazing Toys Ltd

The featured circuit set includes different accessories to conduct more than 25 experiments. The accessories include floating ball, led light and many more. It helps children to learn about electronics and have fun at the same time. Electronic circuit toy.Include different accessories for connection.With more than 25 experiments.Educational and fun.Develop the creativity of children.Learn to connect interesting FLOATING BALL, LED LIGHT, RESISTORS and many moreHighly sensitive LIGHT CONTROLLED LIGHT Adjustment for Brightness ControlRequires 2 x "AA" batteries, not included Demonstration Video: https://youtu.be/BYJUwY2vnJQ 

25+ Circuit Fun

Featured here is an electronic circuit toy in piano shape. It is black and white piano keys and children can play it like an electric piano. The circuit board can be connected to provide more than 38 experiments. Electronic circuit toy.Piano style circuit board.With black and white piano keys.Include different accessories for connection.With more than 38 experiments.Educational and fun.Learn to connect interesting ELECTRIC PIANO, SPEAKER, LED LIGHT, RESISTORS and many moreLED LIGHT Adjustment for Brightness ControlFeatures finger TOUCH CONTROL to light up LED LightSimple MAGNETIC CONTROL to switch electric pianoRequires 2 x "AA" batteries, not included Demonstration Video: https://youtu.be/-054sc6ZDbI 

38+ Piano Lab

Antron Electronics Co., Ltd.

Antron front-end emergency LED driver enables you a pleasant experience when it comes to installation. It is compatible with any 0-10V dimmable AC LED driver ranges from 10W to 240W. Moreover, it providesadjustable constant poweroutput from10W to 20W. Universal input voltage 120-277Vac .At least 90 minutes in emergency modeVariable resistor design for LED load power adjustmentOptional remote test switch designOpen/Short/Over-Voltage/Over Temp. protectionSuitable for UL dry and damp locationUL listed and CEC title 20 approval5 years warranty 

Front-End Emergency LED Driver

RoMaks Limited

RoMaks Limited is a trusted supplier of high-quality electronic components, strategically based in Hong Kong with a focus on fast delivery and global accessibility. We specialize in sourcing and distributing a wide range of components directly from leading manufacturers and verified distributors. Our extensive in-stock inventory and streamlined logistics network allow us to meet urgent production needs across the electronics industry. We support OEMs, EMS providers, engineers, and procurement professionals with reliable supply chains and responsive customer service. Our product portfolio covers a broad spectrum of applications in industrial automation, automotive electronics, IoT, consumer devices, power systems, and more. 🧩 Our product range includes:Passive Components: Resistors, capacitors, inductors, varistors, ferrites, and filters. Active Components: Diodes, transistors, rectifiers, thyristors, voltage regulators. Semiconductors &amp; ICs: Microcontrollers, logic ICs, analog/digital ICs, sensors, memory chips. PCB Hardware: Spacer standoffs, LED supports, screws, fasteners, connectors, cable assemblies. Optoelectronics: LEDs, displays, photodiodes, infrared components. All of our products comply with international standards such as RoHS, REACH, and ISO 9001. Quality assurance is embedded into every stage of sourcing and handling to ensure reliability, performance, and safety. 🚚 Key advantages of working with RoMaks Limited:In-stock availability for popular components with real-time updates. Fast worldwide shipping from Hong Kong to Asia, Europe, and North America. Custom sourcing solutions for hard-to-find, obsolete, or specialty parts. Flexible MOQ (Minimum Order Quantity) to support prototyping and production. Whether you are building next-generation devices or maintaining legacy systems, RoMaks Limited ensures your supply chain remains uninterrupted, affordable, and efficient. We are more than a supplier — we are a sourcing partner. For more details, visit our website or contact our team to request a product list, datasheet, or quotation. 

Electronic components

Antron dimmable and non dimmable constant current LED driver varies from 5W to 240W, we have several standard models for you to choose, the list is endless. We provide quick turnaround customized service based on different requirement for your lighting applications. Most of our constant current LED drivers are high power factor, flicker free, and have isolated design, 3-in-1 dimming function that is compatible with dimmable LED lights. Universal input voltage 120-277, 347VacPFC, Flicker Free, Isolated design3-in-1 Dimming (PWM, 0-10V, Resistance)Dimming down to 10%Open/Short/Over-Voltage/Over Temp. protection2kV to 4kV surge protectionSuitable for UL dry and damp location5 years warranty 

Constant Current LED Driver

Znatok Group Limited

Uncover the world of electronics and optics with our electronic kit, suitable for ages 8 and up. With over 15 engaging experiments, it offers hands-on experiences like mixing light, color and light combinations, parallel and series LED circuits, and interactions with variable resistors and electric motors. Crafted from durable ABS material with copper buckles, it’s built for safety and longevity.  The packaging is compact, with a 38×24.5×3.5cm color box, and each standard carton includes 10 sets, measuring 57×25.5×39.5cm. The total weight is 11.02 kgs (G.W.) and 10.26 kgs (N.W.). This kit is a perfect blend of education and fun, igniting curiosity and nurturing young scientific minds. Unleash your child’s inner scientist and let their creativity flourish with this comprehensive electronic kit.  Features Characteristic: Mixing light/ Mixing color and light/ Parallel inclusion of LEDs/LED circuits in series/ The LED and variable resistor/ The LED and electric motorMaterial: ABS+Copper bucklesExperiment: Over 15 different experimentsAges: 8+Packing Color Alu box, 38×24.5×3.5cmStandard carton, 57×25.5×39.5cmG.W.: 11.02 kgsN.W: 10.26 kgs   Q: How to get a sample? A: Sample order is acceptable. Pls contact with us and make sure what sample do you need.  Q: What about the leading time? A: In general, the leading time is about 25-35 days. But please confirm the exact time with us as different products and different quantity will have different leading time.  Q:What is your payment term ? 30% deposit, balance before delivery.  Q: Can I have our own logo on the products? A: Available. It is ok to have your logo on the products.     Our Certifications:      

Znatok Electronic Kit RGB l Offers Hands-on Experiences Like Mixing Light, Color and Light Combinations

Power NTC Thermistor has an excellent non-linearity characteristic for the resistance and temperature, its appliance is an easy and effective method to protect electronic device through surge current restrainning.

 Feature of Power Thermistor  	 Power NTC thermistors are in small size but with a high power that to restrain the
	Surge current. 	 Power NTC thermistors&nbsp; possess the electronic character of fast reflection, high reliability and long-life for use. 	 The material has a high constant as &ldquo;B value&rdquo; with small remained resistance. 	 Power NTC thermistors have a large application range integrate products&nbsp; series.   Rage of Application  	 Switch mode power supply,&nbsp; Adapter. 	 Transformer,&nbsp; LED driver circuit. 	 Electronic rectifier,&nbsp; electronic heater. 	 Electric&nbsp; motor. 	 It has a protected function for RT , display, lighting device and circuit of different electronic equipment.   Certificates  	 Safety Approval Certificate: UL / CUL 	 Quality management system Certificates: &nbsp;ISO9001:2008&nbsp; 	 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ISO14001:2004   Electrical Characteristics  	 Rated Zero-Power ResistanceRN (&Omega;) : 5&plusmn;20% Ambient temp. Range:25℃&plusmn;2℃(TA).
	Testing voltage: 1.5VDC
	After placing for 1~2 hours under TA, the resistance value shall be measured. 	 Thermal Dissipation Constant &delta;(mW/℃) : &ge;15 , The thermal dissipation constant(&delta;) could be calculated by the ratio of a change in power dissipation(&Delta;P) of the thermistor to a change in temperature(&Delta;T) of the thermistor at a specified ambient temperature 	 Thermal Time Constant &tau;(s) : &le;68, The time(&tau; shall be measured within which the temperature change of NTC thermistor is reached at 63.2% of the ambient temperature change under zero power condition 	 Material Constant B : 2700&plusmn;10% B=T1T2/( T2- T1) &times;Ln (R1/R2), R1 , R2 is zero-power resistance at T1 , T2
	T1 = 298.15 K(25℃)&nbsp; T2 = 323.15 K(50℃) 	 Max.Steady State Current (A) : visible mechanical damage.
	&Delta;RN&nbsp;/ RN&nbsp;&le;20% (&Delta;R =∣RN-RN&#39;∣), 25℃&plusmn;2℃Ambient temp. Range, 5.0A&nbsp; Testing Current  

NTC  

The zinc oxide varistor ranges from 18V to 1.8kV for various applications. It is well engineered low current leakage, excellent temperature coefficient and good solderability. The zinc oxide varistor is an important electronic component for electrical and electronic equipment.
 
  Excellent non-linear voltage. 
  Great withstanding surge current. 
 

Dongguan Hampo Electronic Technology Co., Ltd

Product Description003-0606, is a type of 1080P Full HD USB 2.0 camera module featuring Wide Dynamic Range (WDR) and night vision IR-Cut, widely used for security camera, access control system, face recognition system etc.The WDR scheme used is multi−exposure WDR. This allows the sensor to handle up to 96 dB of dynamic range.Key FeaturesDay &amp; Night Vision Auto SwitchThe motorized (switchable) IR-CUT filter and infrared LED can be triggered by the photo resistor according to the light environment to be ON/OFF to block or pass the infrared light.This day&amp;night vision and WDR camera is based on 1/2.7" AR0230 CMOS image sensor with advance 3.0µm pixel BSI technology from ON Semiconductor. It has S-mount (M12) lens holder which allows customers to choose and use the lens according to their requirement. SpecificationSensor: AR0230Sensor Size: 1/2.7"Resolution: 1920*1080Output: MJPC/YUVFocus: Fixed FocusFrame Rate: 30fpsWide dynamic range: 96DBSystems capability: Supported Windows XP(SP2, SP3)/Vista7/8/10, Linux, or OS with UVC driver Company Profile Dongguan Hampo Electronic Technology Co., Ltd, located in Tangxia Town, Dongguan City and founded in 2014, is a manufacturer specialized in design, R&amp;D and manufacture of audio and video electronic products. Hampo owned two buildings as production bases covering total 13,000 square meters. For the time being, Hampo has around 300 employees, and provides a full range of production services such as SMT, module assembly, packaging and so on. As member of Hampo Family, we will adhering to the concept of “Market- Lead and Customer First”; keep providing our best services to customers. Also we will always be open to new technology and strive to have a bright future for audio and video industry.   

1080P USB Camera Module with IR-Cut & HDR

Varistor is a sort of sensitive component which resistance value can vary with the applied voltage, it is widely used in the instantaneous overvoltage protection and surge absorption of Electronic-electrical equipment.

    Features:    
- Great range of varistor voltage:  18V to 1.8KV 
- Fast response to transient voltage (ns)
- High great withstanding surge current
- Excellent non-linearity voltage
- Symmetric V-I characteristics
- No following-on current
- Long life

    Range of application:    
- Used in surge protection for IC, transistor, diode semiconductor switch circuit.
- Used in communication, telemetering, electrical control and various electronic equipment.
- Suppress the instantaneous overvoltage caused by electromagnetic valve and relay.
-&nbsp;Supprss the instantaneous overvoltage caused by power supply.
- Suppress the instantaneous overvoltage caused by electronic circuits
- Lightning protection for various kind of electronic appliances.

    Technical conditions:&nbsp;    
- Carry our standard of GB/T10193, GB/T10194, GB/T10195-1997 and SJ/T10348-10349.
- Measurement conditions For varistors of 05D, 07D, 10D, 14D, 20D Series, voltage across the varistor measured under 1 m A DC.
- Varistor voltage: The voltage between two terminals with the specified measuring current applied is expressed by letter V.
- Maximum continuous operating voltage: The maximum sinusoidal RMS voltage or maximum DC voltage that can be applied continuously in the specified environmental temperature range.
- Working ambient temperature: -40C ~ +85C&nbsp;
- Storage temperature range: -40C ~ +125C

Varistor

NTC Thermistor 

 	 Varistor is a sort of sensitive component which resistance value can vary with the applied voltage, it is widely used in the instantaneous overvoltage protection and surge absorption of Electronic-electrical equipment.      Recognized Certificate     	 VDE, UL, CQC      Features:     	 Great range of varistor voltage:  18V to 1.8KV  	 Fast response to transient voltage (ns) 	 High great withstanding surge current 	 Excellent non-linearity voltage 	 Symmetric V-I characteristics 	 No following-on current 	 Long life      Range of application:     	 Used in surge protection for IC, transistor, diode semiconductor switch circuit. 	 Used in communication, telemetering, electrical control and various electronic equipment. 	 Suppress the instantaneous overvoltage caused by electromagnetic valve and relay. 	 Suppress the instantaneous overvoltage caused by power supply. 	 Suppress the instantaneous overvoltage caused by electronic circuits 	 Lightning protection for various kind of electronic appliances.      Technical conditions:&nbsp;     	 Carry our standard of GB/T10193, GB/T10194, GB/T10195-1997 and SJ/T10348-10349. 	 Measurement conditions For varistors of 05D, 07D, 10D, 14D, 20D Series, voltage across the varistor measured under 1 m A DC. 	 Varistor voltage: The voltage between two terminals with the specified measuring current applied is expressed by letter V. 	 Maximum continuous operating voltage: The maximum sinusoidal RMS voltage or maximum Dc voltage that can be applied continuously in the specified environmental temperature range. 	 Working ambient temperature: -40C ~ +85C&nbsp; 	 Storage temperature range: -40C ~ +125C  

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