TSOP1838 IR Reciever Metal Small

15 January 2014 User Review

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The TSOP183B series are miniaturized receivers for infrared remote control systems. PIN diode and preamplifier are assembled on lead frame, the epoxy package is designed as IR filter.  The main benefit is the reliable function even in disturbed ambient and the protection against uncontrolled output pulses.


TSOP1838 infra-red sensor works on the 38 kHz carrier frequency. IR receiver has 3 pins

  • VCC

pin out

Internal circuit of TSOP sensor consists of a photo diode, pre amplifier and band pass filter. Photo diode detects the IR rays and amplified signal is passed through the band pass filter. Carrier frequency of the data signal should be close to center frequency of the band pass filter (e.g. 38 kHz). The output of TSOP is active low and it gives +5V in off state. When  IR  light with a center frequency of 38 kHz incident on TSOP1838, its output goes low.



  •  Photo detector and preamplifier in one package
  •   Internal filter for PCM frequency
  •  TTL and CMOS compatibility
  •  Output active low
  • Improved shielding against electrical field disturbance
  •  Suitable burst length: 6 cycles/burst
  •  Low power consumption.
  • Immunity to ambient light is high


  • Supply voltage: 2.7 to 5.5V
  • Reception Distance: 18 Meters
  • B.P.F Center Frequency: 38KHz
  • Supply Current: 0.4 to 1.5mA
  • Reception angle :+/- 45 degrees
  • VOH (6V Vcc): 4.5V
  • VOL (5V Vcc): 0.4V



  • Remote control applications
  • remote receiver
  • infrared tester


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