Electronics

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Electronics Suppliers and Manufacturers

Parts, Components & Raw Materials

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Parts, Components & Raw Materials Suppliers and Manufacturers

Passive Components

elec

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Passive Components Suppliers and Manufacturers

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

This is a ceramic disc capacitor with different series available for high or medium voltages. Some of the series has semiconductive materials on the surface layer or barrier layer 
   Electronic components for various kinds of electronic devices   Detailed specification available on the company website  

Ceramic Disc Capacitor

 	 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  

These are piezo elements which include diaphragm, humidifier and ultrasonic transducers. The company also manufactures sound buzzers sensor and alarm components.
    Electronic components for various kinds of electronic devices  Detailed specification available on the company website  

Piezo Elements And Buzzers

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  

Power NTC  

Evergreen (H.K.) PCB Limited

The double-layer built of this PCB comes in a robust rectangular silhouette, showcasing integrated electronic components for efficient connection within your computing devices. Delicate punched holes are further seen at the corners to ease installation.

Features:
&bull; Material: ceramics.
&bull; Robust rectangular silhouette.
&bull; Double-layer built.
&bull; Punched holes at corners to ease installation.
&bull; Integrated with electronic components.
&bull; Ensure efficient connection in machines.
&bull; Excellent piece for a wide range of electronics devices.
&bull; Roger layer: 2.
&bull; Thickness: 0.8/1.0/1.2mm.
&bull; Finishing: immersion tin/immersion silver.

Applications:
&bull; Transmission PCB.
&bull; Receiver PCB.
&bull; High speed transmission PCB.
&bull; Radiation PCB.
&bull; Low loss PCB.

Rigid PCB

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.

 	 Applications to small sized electronic products:&nbsp; 	 This series is designed for easy handling, available with variety of adjustments method 	 Wide mounting sizes and types of adjustments available 	 Capacity ranges from 1.5 to 120pF 	 Sturdy mechanical structure against vibration of shock  

Variable Capacitor

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 showcases fine conductive lines and tiny electronic components that form working circuits or assembly in your machineries. Made of high quality ceramics, the regular four-side construct promises quick mounting and a long-service life.

Features:
&bull; Material: ceramics.
&bull; Standard four-side panel.
&bull; Dual layer housing.
&bull; Showcase fine conductive lines and tiny electronic components.
&bull; Guarantee a long-service life.
&bull; Perfect base board for circuits and assembly in machineries.&nbsp;
&bull; Roger layer : 2.
&bull; Thickness: 0.8/1.0/1.2mm.
&bull; Finishing: immersion tin/immersion silver.

Applications:
&bull; Transmission PCB.
&bull; Receiver PCB.
&bull; High speed transmission PCB.
&bull; Radiation PCB.
&bull; Low loss PCB.

Presented here is a ceramic capacitor with a disc-shaped design. It is precisely engineered for excellent performance. This ceramic-disc capacitor is easy to assemble.   Suitable for various electronic devices.   Available in assorted models.  

Ceramic-Disc Capacitor

 The ceramic disc capacitor is constructed of alternating layers of metal and ceramic. The ceramic layers act as the dielectric. It can be used in various electronic designs.    Material: ceramic, metal.   Wide applications.   Available in various designs.  

 Displayed is a piezo buzzer that can emit a clear and penetrating sound. It is well designed and engineered with precision to ensure reliable performance. The buzzer is applicable in a range of electronic systems.    Low or multi frequency design.   Wide applications.   Available in various designs.  

Piezo Buzzer

The irregular outline of this PCB is accented with cut-offs and punched holes to ease mounting in various computing devices. It integrates conductive pathways, transistors and capacitors, forming circuits for functional use. The red solder mask finish further promises long-term applications with lasting good looks.

Features:
&bull; Material: FR-4.
&bull; Irregular outline of double layer design.
&bull; Accented with cut-offs and punched holes.
&bull; Integrate conductive pathways, capacitors and more.
&bull; Promise long-term applications.
&bull; Functional piece for electronic and computing devices.
&bull; Layer: 2.
&bull; Thickness: 1.6mm.
&bull; Finishing: HAL.
&bull; Solder mask color: red.

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.

Acting as the base board to support wiring and mounting in most electronics, this PCB comes in a multi-layer construct and comprises 20 cut-off holes to boast convenience. Its crisp quadrilateral silhouette is further coated with green solder mask for enhanced durability.&nbsp;

Features:
&bull; Material: FR-4.
&bull; Crisp quadrilateral design.
&bull; Multi-layer construct.
&bull; Feature 20 cut-off holes.
&bull; Quality coating to give durability.
&bull; The base board for wiring and mounting active devices in electronics.
&bull; Layer: 4/6/8/10.
&bull; Thickness: 1.2/1.3/1.4/1.6/2/3mm.
&bull; Copper thickness: 2oz/ 3oz/ 4oz.
&bull; Finishing: immersion gold.
&bull; Solder mask: green color planner transformer.

Applications:
&bull; Heavy copper PCB.
&bull; Coil PCB.
&bull; Inductor PCB.
&bull; Power Supply PCB.

Often placed inside generators as well as electronics, this PCB provides efficient conductive pathways for current flow, without any visible wires. Its dual-layer FR-4 housing further finishes off with the popular green solder mask coating to boast durability and reliability.

Features:
&bull; Material: FR-4/CEM-3.
&bull; Slim four-side silhouette.
&bull; Dual-layer housing with green solder mask coating.
&bull; Provide conductive pathways for current flow.
&bull; Guarantee durability and reliability.
&bull; Suitable for a wide range of generators and electronics.
&bull; Layer: 2 layers.
&bull; Thickness: 1.5mm.
&bull; Finishing: OSP Entak.
&bull; High Tg: Tg150, Tg170.
&bull; Solder mask color: green.

Applications:
&bull; Power supply PCB.
&bull; Heavy copper UPS PCB.
&bull; Battery charge PCB.

Trimmer Capacitor

This PCB is crafted of durable FR-4 or CEM-3 material, which features double copper layers, green solder mask, and 1.5mm thickness. This PCB can support middle thermal loads for up to 170&deg;C that lets the electronics runs stably in the long term.

&bull; Material: FR-4/ CEM-3.
&bull; 2-layer construction.
&bull; 1.5mm thick.
&bull; High Tg: Tg150&deg;C/ Tg170&deg;C
&bull; Handled with HAL finishing.
&bull; Solder mask in green.
&bull; Allow improved operating stability of electronics.
&bull; Perfect choice for power supply PCB, ATM power supply heavy copper UPS PCB, and battery charger PCB.

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  

 	 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  

Varistor Mov Φ10d

MOV 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 restraining.

 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 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 series.   Rage of Application  	 Switch mode power supply, Adapter. 	 Transformer, LED driver circuit. 	 Electronic rectifier, electronic heater. 	 Electric 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: 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 Testing Current  

NTC  

    Monolithic Ceramic Capacitors     	 Monolithic ceramic capacitor is a product that assemble the radial direction leads on the mutilayers ceramic capacitor (MLCC) 	 which has a feature of large capacitance (10pF ~ 10uF) small size, high reliability, stable capacitance, high temperature with standing and good insulation compared with normal disc ceramic capaciors that being used widely.      Feature     	 Excellent temperature and frequency characteristic, with a stable and smaller drop of capacitance wldile fveguenag vlsing. 	 Can replace mica capacitors, paper capacitors and some tantalum capacitors.      Application     	 Applied widely on small and micro electronic devices (such as liquid crystal watches and micro-equipment) 	 Used on electronic precision instruments 	 Mainly used in the circuit of bypass, filter, coupling, etc.&nbsp;  

Mono Capacitor

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 restraining.

 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, Adapter. 	 Transformer, LED driver circuit. 	 Electronic rectifier, electronic heater. 	 Electric 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  

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