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

 	 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  

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  

ONLINESHOP SRL

UPS - Uninterruptible power supply Sinusoid pure for thermal power plants The SilverCloud SafePC 600W UPS is the ideal solution for protecting wood-fired power plants, engine equipment, and other electronics that are susceptible to short-time and long-term power outages. The device operates with an input voltage of 140 ~ 280VAC +/- 2% providing a constant output of 230 V +/- 10%.  Overload and short-circuit protection The Silver Cloud SafePC 600W is equipped with a smart protection system in the event of overloading, overloading, or shorting, and with a fuse that protects the electronic equipment from possible damage after a short circuit.    AVR - Output Voltage Stabilization The device also has a voltage stabilizer on the output, a function that offers the most accurate voltage and close to that required for powering the electrical and electronic equipment in your home.     USB-PC communication / monitoring The SilverCloud SafePC 600W UPS is equipped with an intelligent monitoring / control and diagnostics function and technical parameters that can be tracked from a PC / Laptop via the USB Connection and USB cable available in the package. Once connected to a PC / Laptop with Internet access, you can track the remote UPS's operating parameters via the Internet with applications such as TeamViewer.    Autonomy: External battery / battery  The device allows you to connect a car battery or as recommended by a GEL VRLA AGM large capacity (50 - 200Ah) battery that does not require maintenance and has a long service life. This provides a backup time of up to several hours in case of power failure, the duration varies depending on the instantaneous consumption. The device automatically charges the battery when it stops running.    LCD screen and smart menu The UPS will alert you both visually and visually in the event of a low battery level, when switching to battery power or overcharging. The LCD screen will allow you to monitor the device's operating status, battery level and warnings.  Available connectionsThe SafePC 600W UPS has 2 Schuko outputs for powering 230V electronic devices, a fixed line line in / out, and a PC / Laptop system monitor / diagnostics USB connector. 

UPS SilverCloud 850VA with pure sinusoidal LCD display for thermal power plants

Sun Yin Crystal Industry Co Ltd

This component is made of sapphire crystal glass which has a hardness that ranks nine out of ten in the Mohs scale, making it the hardest material second to diamond. It is also designed to be anti-impact, anti-scratch. The sapphire crystal glass is skillfully crafted to ensure high quality and is great for repairs and replacements of machinery. Sapphire crystal glassElectronic useElectronic componentElectronic glassHigh quality &amp; craftsmanshipAvailable custom design &amp; drawingAvailable any coating &amp; metallizationVicker hardness: 2000 - 2500 daN / mm2Tensile strength: 26 daN / mm2Flexural strength: 35 - 39 daN / mm2Welcome inquiry for any drawing &amp; details

Sapphire Glass Electronic Used Component

 The SilverCloud K1500VA automatic voltage stabilizer can be used to power electronic devices that consume up to 900 W. entrySilverCloud K1500VA is supplied with a voltage ranging from 140 to 260 V.  Exit delayThe stabilizer is equipped with an output signal delay circuit that is recommended in the use of refrigeration equipment, to minimize the possibility of compressor motor failure.  Double meter The SilverCloud K1500VA has a dual counter on the front panel for tracking both input and output voltage, and 3 indicator LEDs to track device status. ProtectionThe stabilizer is equipped with electrical surge protection circuits (when the input exceeds 255 V), short circuit and overload.  

Voltage stabilizer SilverCloud 1500VA 900W

Zero New Materials (Hong Kong) Co., Limited

TPM series is industrial foam with medium hardness, with moderate rebound force, which can provide stable and lasting rebound force in industrial control equipment, electronic appliances, vehicle-mounted systems and other applications, thus helping the equipment to play the functions of sealing, dust prevention, shock absorption, elastic support and so on. Product Description TPM series is industrial foam with medium hardness, with moderate rebound force, which can provide stable and lasting rebound force in industrial control equipment, electronic appliances, vehicle-mounted systems and other applications, thus helping the equipment to play the functions of sealing, dust prevention, shock absorption, elastic support and so on. The product has a wide range of temperatureresistance and lasting thickness and stress, which is an ideal choice for industrial application of foam. Features and advantages •Reduce shock and isolate vibration •Long-term spring force •Excellent sealing performance •Wide temperature tolerance range Applications •Environmentalseals •Device pressing pad •Shock absorption pad   

industrial foam

Maximum power The SilverCloud K500VA automatic voltage stabilizer can be used to power electronic devices that consume up to 300 W. entryThe SilverCloud K500VA is powered by a voltage ranging from 140 to 260 V.  Exit delayThe stabilizer is equipped with an output signal delay circuit that is recommended in the use of refrigeration equipment, to minimize the possibility of compressor motor failure.  Double meter The SilverCloud K500VA has a dual counter on the front panel for tracking both input and output voltages, and 3 indicator LEDs to track device status. ProtectionThe stabilizer is equipped with electrical surge protection circuits (when the input exceeds 255 V), short circuit and overload.  

Voltage stabilizer SilverCloud 500VA 300W

Model No. TPS Series PS series is a kind of foam with soft hardness, which can keep a low pressing rebound force for a long time. It is suitable for structural filling, sound sealing, dustproof sealing and shock absorption of electronic equipment and household appliances. Product Description PS series is a kind of foam with soft hardness, which can keep a low pressing rebound force for a long time. It is suitable for structural filling, sound sealing, dustproof sealing and shock absorption of electronic equipment and household appliances. PS series' foam holes are uniform and stable, and have a wide range of temperature resistance, which can meet the use environment needs of general household equipment and provide long-term stable sealing and buffering for equipment.  Features and advantages •Reduce shock and isolate vibration •Long-term spring force •Excellent sealing performance •Super compression set resistance  Applications •Environmental seal includes sound seal and dust seal gasket •Device pressing pad • Shock absorption pad 

industry foam

Overload and short-circuit protectionThe SilverCloud SafePC 650AVR comes with an intelligent protection system for overload, over-discharge, or short-circuit protection, and a fuse that protects the electronic equipment against possible damage from a short circuit. AVR - Output Voltage StabilizationThe device also has a voltage stabilizer on the output, a function that offers the most accurate voltage and close to that required for powering the electrical and electronic equipment in your home. USB-PC communication / monitoringThe SilverCloud SafePC 650AVR UPS is equipped with an intelligent monitoring / control and diagnosis system and technical parameters that can be tracked from a PC / Laptop via the USB Connection and USB cable available in the package. Once connected to a PC / Laptop with Internet access, you can track the remote UPS's operating parameters via the Internet with applications such as TeamViewer. LCD screen and smart menuThe UPS will alert you both visually and visually in the event of a low battery level, when switching to battery power or overcharging. The LCD screen will allow you to monitor the device's operating status, battery level and warnings. Available connectionsThe SafePC 650AVR UPS has 2 Schuko outputs for powering 230V electronic devices, 2 inputs / outputs for fixed line protection, and a USB connector for system monitoring / diagnostics on the PC / Laptop. 

UPS SilverCloud SafePC 650AVR power 360W LCD screen PC monitoring software

Specialthing Int'l Co Ltd

NC-703 AM/FM headphone radio with electronic noise cancellation AM/FM 2 band receiverSuperb new designComfortable earpadsAjustable and comfortable headbandoperated by 2 x AA sized batteries (Not included)Can act as a hearing protecting equipment : Reducing by 10dB

AM/FM Headphone Radio with Electronic Noise Cancellation

AC Electronic Ltd

The display on the 10 Pro is similarly sized to the model but uses an FHD+ LCD panel with sharp sides and no curvature. The screen boasts a 120Hz refresh rate and a 240Hz touch sampling rate. Lastly, the Realme 10 Pro opts fo Samsung ISOCELL HM6r a dual-camera setup on the back with a 108 MP Samsung ISOCELL HM6 primary sensor and a 2 MP depth sensor. The selfie camera is the same across both phones. 

Realme 10 Pro (Global, 5G) (256GB+8GB, Dark Matter Black)

Xintechnology Electronics Co., Ltd.

Description Xintec Magnetic Door Contact consists of a reed contact and a permanent magnet. When the door or window is opened, the reed contact is opened as the magnet is taken away, the magnetic field altered and the signal line interrupted. The reed switch and magnet are mounted parallel to each other using the surface-mount housing.  Features ● No standby power supply, good air tightness, long service life  ● Screw or adhesive mount ● High-impact weatherproof brown ABS plastic case ● Multiple magnetic sensitivity range, can be matched with magnet trigger  ● High stability, high reliability, high consistency   Application Perfect for sliding doors and windows where space is limited 

Magnetic Door Contact/Magnetic Proximity Switch (Surface Mounted)

Realme 10 Pro (Global, 5G) (128GB+8GB, Dark Matter Black)

TGM Series Model No. • The anti-elastic force can provide long-term buffer support and sealing protection for the equipment.• Maintain performance stability in extreme environments such as ultraviolet, ozone, high and low temperatures• The tight cell structure provides a powerful guarantee for environmental sealing.• A wide range of thickness and firmnesses to allow engineers more design flexibility Product Description The MicroES® TGM Series is a medium-firmness silicone foam. It has the features of light weight, long-lasting elasticity, good cushioning property and fire resistance. It can provide sealing for the equipment and play the role of spring in narrow space. GM series silicone foam can provide different thicknesses of coils, which is easy to add to the required size. Features and advantages: • The anti-elastic force can provide long-term buffer support and sealing protection for the equipment. • Maintain performance stability in extreme environments such as ultraviolet, ozone, high and low temperatures • The tight cell structure provides a powerful guarantee for environmental sealing. • A wide range of thickness and firmnesses to allow engineers more design flexibility.  Applications: •Environmental sealing to protect against penetration of dust, damp air and moisture • Provide long-term vibration isolation in electronic components and transportation vehicles • Industrial equipment of the buffer and gap filling  Installation: Available with a pressure-sensitive adhesive on one side to allow easy application to a variety of surfaces   Typical physical properties of TGM-series:  

a medium-firmness silicone foam

TPH series is hard polyurethane foam, which can provide 10%~30% compression. Compared with rigid materials, PH series has better elastic support and attachment function, and has certain shock absorption and buffering capacity.  Product DescriptionPH series is hard polyurethane foam, which can provide 10%~30% compression. Compared with rigid materials, PH series has better elastic support and attachment function, and has certain shock absorption and buffering capacity. It can be applied to the position where hard support is needed in equipment, and can also be used as a foot pad of electronic equipment to play a role in buffering and supporting. Features and advantages •High hardness can be compressed by 10%~30%, providing elastic support for the structure •Versatile thickness selection with 0.25mm～6.0mm •Stable size for die cutting •Super compression set resistance  Applications •Hard and elastic support ofstructure •Gap filler •Footpad 

hard polyurethane foam

NC-702 AM/FM headphone radio with electronic noise cancellation AM/FM 2-band receiverSuperb new designAdjustable and comfortable headbandOperated by 2 x AA sized batteries (Not included)Can act as a hearing protecting equipment : Reducing by 10dBPackaging : One piece with a bubble bag in a printed gift boxPacking : 20 pieces per carton, N.W. 6.5Kgs, G.W. 7.5Kgs, 0.053CBMColor available : Black, White, GreyMOQ : 3,000 pieces per color 

Truly Electronics Mfg Ltd

This is a reliable electronic calculator that is designed for&nbsp;heavy-duty use.&nbsp;This calculator&nbsp;is equipped with a 12-digit display, giving you further flexibility in calculation.&nbsp;This excellent electronic calculator makes the ideal addition to your office. 	 Digits: 12. 	 Designed with power switch. 	 Available in various designs.  

Electronic Calculator

TPI Series Model No.MicroC Foam TPI · Versatile thickness selection, providing abundant choices for different gap with thickness 0.1mm～5.0mm.· Soft and tidy, providing good coverage and protection for the filling space.· Good shock absorption, which can effectively protect the equipment, reduce impact damage.· High level of resistance to stress relaxation assuring the devices of long-term protection. Product DescriptionSome movable equipment and handheld devices will face the impact collision and drop damage in the daily applications. How to better protect these electronic devices and extend the service life of the devices is a design problem that many designers need to face. According to this requirement, we have developed PI series products which have excellent impact resistance formula, giving the polyurethane foam good impact absorption function. By adjusting the density and formula, our foam has a better impact absorption ratio than other materials under the same thickness and has long-term reliability at the same time. Applications: · Cushion pad for movable equipment · Precision equipment package · Cushion pad for protective casing · Back cushion for OLED  Product Features: · Versatile thickness selection, providing abundant choices for different gap with thickness 0.1mm～5.0mm. · Soft and tidy, providing good coverage and protection for the filling space. · Good shock absorption, which can effectively protect the equipment, reduce impact damage. · High level of resistance to stress relaxation assuring the devices of long-term protection.  Impact Absorption Test: · The force sensor can detect the force of falling ball. Read the force of falling ball (F1) without foam on the force sensor. Then read the force of falling ball (F2) with the foam on the force sensor. The force will be absorbed or isolated by the foam. The impact absorption=(F1-F2)/F1*100% ·Drop condition1: For thickness 1mm~1.5mm, 30g brass ball, dropping height 30cm. 

MicroC Foam 

Wealthland (Audio) Ltd

Model No: BG3525Diameter: 20mm, 25mm,40mm,50mmThickness: 0.6mm.Diaphragm: CeramicFrame: BrassImpedance (Ohm): &lt;250Normal Imput(W)Resonant frequency(Hz): 2.4K.Output S.P.L.(dB):Capacitance: 38000pFComply with: RoHS.

Piezo Buzzer ceramic 20mm, 25mm,40mm,50mm 

This is a reliable electronic calculator that is designed for&nbsp;heavy-duty use.&nbsp;This calculator&nbsp;is equipped with a 12-digit display, giving you further flexibility in calculation.&nbsp;This excellent electronic calculator makes the ideal addition to your office. 	 Digits: 8 	 Designed with power switch. 	 Available in various designs. 	 Power: Solar + 1 X AA  

8 Digit Dual Power Electronic Calculator

Firstsing Co Ltd

 Circle Slide Pad&nbsp;Non-Slip Sticker&quot; for Nintendo NEW 3ds LL / 3DS 
 * This is the Non-slip Sticker for the slide circle pad on Nintendo NEW 3ds LL / 3DS. 
 * Including 6piece. 
 * Material :&nbsp;Silicon Rubber 
 * This is Japanese Product, so the package is written by Japanese 

Circle Slide Pad Non-Slip Sticker For Nintendo New 3DS LL / 3DS 6 Piece Set

This is a reliable electronic calculator that is designed for&nbsp;heavy-duty use.&nbsp;This calculator&nbsp;is equipped with a 10-digit display, giving you further flexibility in calculation.&nbsp;This excellent electronic calculator makes the ideal addition to your office. 	 Digits: 10 	 Designed with power switch. 	 Available in various designs. 	 Size: 100 x 138 x 39 mm 	 Power: Solar + 1 X AA  

10 Dual Power Electronic Calculator

Hong Da Industrial (HK) Ltd

         Products that except that we introduced, you can offer specification, parameter which you required       to us too, we can make definitely according to your request.  For details and full product list, pls see our official website : https://www.hdic.com.hk/ 

Piezo Ultrasonic Components

 Product Description     Brand New - Not pulled from a used unit   Each item is tested before shipping and are 100% working     Description:     If you are experiencing the following problems with your console:   disc read errors&nbsp;   slow loading times&nbsp;   failure to read disc&nbsp;   screen freezes when playing a game or watching a blu-ray movie   Then, this should fix your problem.    Package Content:     This sale is for 1 KES-490A laser lens module.   Each unit is fully tested prior to shipment.    

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