The WEJ56APD-K60-DZ is a 5 mm infrared receiver designed to detect 940 nm IR signals from emitters such as remote controls, breakbeam sensors, and optoelectronic circuits. It offers fast response and high sensitivity for embedded and DIY systems.

Specifications

• Type: Infrared photodiode receiver
• Package: 5 mm through-hole (T-1 3/4)
• Peak Sensitivity Wavelength: 940 nm
• Reverse Voltage (V_R): 32 V max
• Dark Current (I_D): ≤ 10 nA (typ.)
• Rise/Fall Time: ~3 μs (typ.)
• Viewing Angle: ~60°
• Lens Color: Black or dark blue (IR filtering)
• Polarity: Long lead = anode (+), short lead = cathode (–)
• Operating Temperature: –25 °C to +85 °C
• Storage Temperature: –40 °C to +100 °C
• Material: Silicon photodiode
• RoHS Compliant: Yes

Features

• Optimized for 940 nm IR signal detection
• Fast response time for modulated IR signals
• Compatible with standard IR emitters and remote controls
• Easy to integrate into breadboards and PCBs
• Ideal for DIY electronics, robotics, and IR communication
• Common use cases:
  - IR breakbeam sensors and counters
  - Line-following and obstacle detection robots
  - IR remote control receivers
  - DIY alarm and automation systems