SEP Electronics

We build what you design


Sep electronics is serving electronic industry customers for more than 25 years. We have two locations offshore Hong Kong and local Mission Viejo, California. Our experience and specialists are able to meet your electronic requirements in a high quality level and always with competitive price. Let us know about your projects and get a free consultation on any electronic projects. Sample will be provided for your approval. There is no shipping cost to you as we have regular weekly air shipping and monthly ocean shipping to our location in California. Some of our abilities are listed here.
* Designing and drafting PCB by CID certified engineer
* Reverse engineering and designing your equipment from A to Z
* Designing and manufacturing of Capacitive and resistive touch panels in all sizes
* LCD in any size 2"-40"
* Clean room service for mounting touch panel on LCD
* On site PCBA sample and low volume manufacturing
* Wire harness such as LVDS, I2C ... as your requirements
* Metal or plastic case for your equipment
* Components such as IC, module, transistor, capacitor, connector ...
* Power supply with any output voltage and current
* Assembly and testing and packing of the products as your instruction

Some of our products and services at a glance

Touch Panel & LCD

We design and make all size of capacitive and resistive custom touch panels. LCD in all sizes are available. Mounting touch panel on LCD service in clean room is available. Ask us for more details.

Metal & Plastic case

Galvanized iron, aluminum, ABS plastic cases for your products. You see a case for gaming machine in the picture which we have handled thousands of this type. Let's make a free sample for your case.


We source and provide any electronic components. Send us your BOM file and get a competitive quote. No matter Passive, through hole, SMT or even obsolete, we will provide the most competitive price for you. Try our free samples.


On site sample and low volume PCBA manufacturing. We will take care of your bare PCB needs as well. Just send us your file and request a quote for all of your PCB and PCBA projects.

Power supply

Switching power supply 110-220V input with any output voltage and current. AC cord with U.S. plug or Euro plug is available. Check out our unbeatable prices on power supply. Question? Send us a text.

Wire Harness

Any wire harness in your product will be made in high quality and perfect condition. Ask us about the projects that we have already done. Free sample will be made for your approval.

We build what you design

We will solve the problems of your production and will make it economical to save you money. We build your electronic equipment. So you can focus on marketing your products only. Let us do all PCB assembly, wiring, boxing, shipping according to your instruction. Please forward us any electronic requirements and get a competitive quotation. Are you ready? Have a question? Send us a message or make a call and start saving.