Electronics

Find Electronics from the best B2B online marketplace. Find a reliable Electronics supplier, vendor, manufacturer or distributor to get free quote on HKTDC Sourcing.

Electronics Suppliers and Manufacturers

Parts, Components & Raw Materials

Find Parts, Components & Raw Materials from the best B2B online marketplace. Find a reliable Parts, Components & Raw Materials supplier, vendor, manufacturer or distributor to get free quote on HKTDC Sourcing.

Parts, Components & Raw Materials Suppliers and Manufacturers

Passive Components

elec

Find Passive Components from the best B2B online marketplace. Find a reliable Passive Components supplier, vendor, manufacturer or distributor to get free quote on HKTDC Sourcing.

Passive Components Suppliers and Manufacturers

RoMaks Limited

RoMaks Limited offers a broad range of inductors and magnetic cores for use in power electronics, signal filtering, EMI suppression, and energy storage. With in-stock availability, custom manufacturing capabilities, and expert technical support, we are your go-to partner for magnetic solutions tailored to high-performance electronic systems. Our components are designed to meet the increasing demands of today's compact, energy-efficient, and high-frequency circuits. Whether you need standard wire-wound inductors, surface-mount coils, or custom ferrite cores — RoMaks provides both standard and bespoke solutions optimized for your applications. 🌀 Our product offering includes:Inductors: Wire-wound inductors (SMD and through-hole) Power inductors (shielded, unshielded) Choke coils (common mode, differential) Toroidal inductors Air core and ferrite core inductors Magnetic Cores: Ferrite cores (toroid, E, U, RM, PQ, EE, EC, and more) Nanocrystalline and amorphous alloy cores EMI suppression beads and sleeves Custom-shaped magnetic cores for transformers, filters, and converters All components are manufactured under strict quality standards and conform to RoHS, REACH, and ISO 9001certifications. 🛠️ Custom Development Capabilities:RoMaks provides engineering and production services for companies requiring custom inductance values, magnetic characteristics, or mechanical dimensions. Tailor-made inductors and cores based on electrical requirements, winding specs, and application use cases. Custom coil winding with precise turn counts, multi-layer design, and shielding. Press mold development for custom ferrite or alloy cores. Material options: soft ferrite, iron powder, nanocrystalline, and more. We support low-MOQ prototyping as well as high-volume production with full documentation and sample testing available upon request. 🚚 Logistics &amp; Stock:Large selection of standard inductors and ferrite cores in stock. Fast delivery from our Hong Kong warehouse and trusted partner locations. Flexible order quantities for both development and mass production stages. OEM/ODM branding options available for large orders. ⚙️ Applications:Our inductors and cores are widely used in: Power supplies (SMPS, DC-DC converters) Electric vehicle systems Industrial motor control Signal processing and EMI suppression Consumer electronics and IoT Telecom and RF modules We work closely with design engineers, procurement teams, and manufacturers to ensure you receive the exact inductive components your system demands — quickly, reliably, and cost-effectively. 📩 Contact us today for datasheets, engineering support, or a quote on standard or custom inductive components. 

Inductors, Choke coils 

UNIVERSAL (CHANGZHOU) ELECTRONICS CO.,LTD.

This is a series of buzzers and raw speakers. Theses electronic components are of SMD type. They are suitable for surface mount electronic devices.   Made of PPS or PBT material  Heat resistant design  Small sized and space saving  

SMD Type Buzzer and Speaker

Chongqing Kaige Electronics Co.,Ltd.

This PCB assembly is made of quality materials for a long service life. It is professionally engineered to provide reliable performance. This PCB assembly is widely used in electronic products.
 
  Consumer electronic product. 
  High quality. 
 

PCB Assembly

Rytech Electronics Ltd

PCBA modules and passive components are a portion of the electronic components we make. We cover a full range of passive components that include capacitors, diodes and recitifiers, sensor modules, thermostat, etc. The electronic components are for a wide range of applications in telecommunications and consumer products. 
   We make a range of active and passive components   Different varieties of electronic products available   New products under R&amp;D include wireless products case like mobile, pocket PC with anti-EMI function  

Electronic Components & Modules

Golden Jade Electronics Ltd

   Type: radial.   Working voltage: 6.3~100/160~450V.   Capacitance range: 0.1~15000&micro;F.   Temperature: -40 ℃~+105 ℃/-25 ℃~+105 ℃.   Reliable performance.   Durable construction.   Long lifetime.   Suitable for consumer electronic equipment, telecommunication equipment and general industry products, etc.   Fit for consumer products requiring high reliability and the ability to withstanding high temperature.  

Electrolytic Capacitor

AUDIOWELL ELECTRONICS(HK)CO.,LIMITED

This piezo speaker features a compact&nbsp; size&nbsp;and low power consumption&nbsp;for flexible product design. This component can be used in portable devices, cameras and other electronic applications. Its thin shape allows for multiple mounting options.

 
  Power consumption: only 1W. 
  Thickness: 1mm. 
 

Multi-Layer Piezo Speaker

NINGBO ZHONGCE E.T ELECTRONICS CO.,LTD

The transformer is designed to transform power and convert voltage with insulation function. The transformer can be applied in many PCB of electronic products such as power switching, computer peripherals and video equipments. The convenient installation and low consumption complete the transformer.
 
  Nice appearance. 
  Outstanding performance. 
 

High Frequency Transformer

Onlitex Electronic Holding Ltd

  High quality power bank pcba &amp; pcb assembly OEM factory  
  Power bank PCBA
buy it directly from manufacturing factory  
Our factory (ONLITEX) is you best choice of one stop PCBA &amp;PCB Assembly services including PCB &amp; material purchasing, SMT, testing, packing, delivery. Onlitex Electronic factory located in Dongguan, Shenzhen, Guangdong province since 2007.
We offer good quality with 12 month warrantee, shipping lead time guarantee and competitive price guarantee for all over the world.
After we get customers' product design idea(ODM)/ Gerber file &amp; BOM list(OEM), we could offer full PCB Assembly services as below:
 1. Product design and development;&nbsp; 
 2. PCB making according to PCB design; 
 3. Material Purchasing as BOM offered;&nbsp;&nbsp;&nbsp; 
 5.SMT/Through hole assembly;&nbsp;&nbsp; 
 6. Function Testing, In circuit testing;&nbsp; 
 7. PCB Boards cleaning; 
 8. Automatic machine Assembly; 
 9 Packaging: ESD Bubble bags &amp; K=K Carton Box 
   10 Fast &amp;Safety Delivery.   
   11 COB (bonding) PCBA &amp; PCB assembly manufacturing.&nbsp;&nbsp; &nbsp; &nbsp; 
&nbsp;
 Onlitex Electronic is a One stop pcba &amp; pcb assembly factory, We offer 1 to 12 layers PCB fabrication, PCB design, PCB layout, PCB manufacturing, PCB Assembly, components sourcing &amp;purchasing, PCBA functional test, finish goods package service. A whole complete solution from components to finish products. 
 Item  Manufacturing&nbsp;Capability 

Onlitex Electronic Co. Ltd. is an professional and competitive manufacturer(factory) that focus on pcb design &amp; manufacture and marketing service of consumer &amp; industrial electronics products
&nbsp;
 When you send us your PCB Gerber Files and BOM, we will quote for you within 24 hours! 
&nbsp;
 Trade Term: 
1. Payment: T/T, LC, DA, DP, Paypal.
2. Lead time: 10 working days for normal products(components less than 100pcs on pcb board).
3. Samples can be available within 8~10working days
4. Shipping freight is quoted under your requests
5. Shipping port: &nbsp;Shenzhen or Hong Kong
6. Discount is offered at larg order quantities

Quality Power Bank PCB & PCBA for Portable Electronic Device

COTRON CORPORATION

Micro Speaker for Earphone

TWINTEX ELECTRONICS CO., LTD

 	 Max. output frequency 5MHz/10MHz/15MHz/20MHz 	 2 output channels 	 Direct Digital Synthesis technology (DDS) 	 Sampling rate 100MSa/s, vertical resolution 8 bits, waveform length 1024 points 	 Min. 1mV (50&Omega;) waveform output with good stability 	 32 built-in waveforms 	 40 sets panel setting save &amp; recall 	 Modulations: FM, FSK, ASK, PSK 	 Frequency sweep, amplitude sweep, burst and TTL output functions 	 Over voltage protection, over current protection, short circuit protection, reverse voltage protection 	 Standard parts: 200MHz frequency counter 	 Optional parts: RS-232 interface, power amplifier  

DDS Function Waveform Signal Generator 5MHz 10MHz 15MHz 20MHz

ELANsat Technologies Inc.

 This digital wireless audio module features a non-compression component for high sound quality. It operates at ISM band with frequency adaptive hopping and QoS technologies to prevent being jammed by microwave ovens and other 2.4GHz devices. 
 
  2-way audio, control and data. 
  Frequency response: 20-20,000Hz. 
  Modulation: GFSK (FHSS). 
 

Digital Wireless Audio Module

Smart Home Engineering Corp.

Featured here is a passive video balun. It transmits video signals with high stability over UTP cables. This video balun can work with a distance up to 300 meters.
   Sends video signals over UTP cable.   Passive design.   No power required.  

Video Balun

Apal Technology Co Ltd

The recording IC performs long distance, high quality voice recording. The IC adopts the latest voice processing technology to keep voice almost lossless. The recording IC is perfect for greeting cards, plush toys, advertisement boxes and other recording products.

 
  Recording time: 15-20s. 
  Records and plays automatically. 
 

My Sourcing