How It’s Made

Vishay is the world's leading manufacturer of infrared (IR) receivers for remote control. Vishay developed and patented a method to internally shield the detector and ASIC from potentially disturbing electromagnetic interference (EMI).

To manufacture the through-hole IR receivers, Vishay starts with a wire lead frame. The PIN photo diode that receives the infrared signal is attached to the lead frame. This is followed by an ASIC that automatically adjusts the gain, and amplifies and demodulates the signal. To ensure quality, Vishay manufactures all the photo diodes used in our IR receivers.

The lead frame includes the metal shield that is bent over the top of the components during manufacturing. Our competitors must rely on bulky, cumbersome external metal shields.

Plastic material is either cast or molded around the lead frame shield. This material allows only 940-nm infrared light to pass to the photo diode. Other light, like visible and UV light, is rejected or filtered out. The receiver is then tested, packaged, and shipped to our customers.

Thanks for making us the world's leading supplier of IR receivers!