IR Receiver Module VS1838B 38 kHz (listed as TSOP173)
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Prices updated: 13 Oct 2026
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About this product
A miniature 38 kHz infrared receiver module for decoding remote control signals and IR data transmission. It is widely used in TVs, audio equipment, air conditioners, fans and other appliances with wireless remote control. The listing title shows TSOP173, but the description identifies the part as VS1838B.
Specifications
- Part number
- VS1838B
- Carrier frequency
- 38 kHz / 38 كيلوهرتز
- Output type
- Digital, active low / رقمي، فعّال عند الانخفاض
- Number of pins
- 3 (OUT, GND, VCC) / 3 (OUT، GND، VCC)
- Supply voltage
- 2.7–5.5 V / 2.7–5.5 فولت
Frequently asked questions
The title says TSOP173, but the description says VS1838B. Which part is this?
The description identifies the part as VS1838B, a 38 kHz IR receiver. TSOP1738 is a different Vishay part with a similar 38 kHz function, so check the markings on the module before relying on a datasheet.
How do I connect it to an Arduino?
Connect OUT to a digital input pin, VCC to 5 V (or within the 2.7–5.5 V supply range), and GND to GND. Use an IR library such as IRremote to decode the received signal.
