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TSOP1238 from VISHAY

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TSOP1238

Manufacturer: VISHAY, WU

Photo Modules for PCM Remote Control Systems

Partnumber Manufacturer Quantity Availability
TSOP1238 VISHAY, WU 70 In Stock

Description and Introduction

Photo Modules for PCM Remote Control Systems The TSOP1238 is an IR receiver module designed for remote control systems. Here are its key specifications, descriptions, and features:

### **Specifications:**  
- **Supply Voltage (VCC):** 2.5V to 5.5V  
- **Supply Current:** 0.35mA (typical)  
- **Carrier Frequency:** 38kHz  
- **Output Signal:** Active Low (Logic "0" when IR signal is detected)  
- **Operating Temperature Range:** -25°C to +85°C  
- **Package Type:** 3-pin epoxy package (through-hole or surface mount options available)  
- **Detection Range:** Up to 45 meters (depends on transmitter power and conditions)  

### **Descriptions:**  
- The TSOP1238 is a miniaturized IR receiver with a photodetector, preamplifier, and internal filter for 38kHz modulated signals.  
- It is compatible with common IR remote control protocols (e.g., NEC, RC5).  
- The module has strong immunity against ambient light and noise due to its built-in AGC (Automatic Gain Control).  

### **Features:**  
- **Low Power Consumption** – Suitable for battery-operated devices.  
- **Improved Shielding** – Reduces EMI (Electromagnetic Interference).  
- **Wide Operating Voltage** – Works with both 3.3V and 5V systems.  
- **High Sensitivity** – Reliable signal reception even at longer distances.  
- **Pb-Free & RoHS Compliant** – Environmentally friendly manufacturing.  

This information is based on standard datasheet details for the TSOP1238 IR receiver module.

Application Scenarios & Design Considerations

Photo Modules for PCM Remote Control Systems

Alternative Part Number

  • TSOP38238 --: Same 38 kHz IR receiver family with similar pinout and carrier frequency, widely available and often used as a direct substitute for TSOP1238.
  • TSOP4838 --: 38 kHz IR receiver module with compatible electrical characteristics and output behavior, suitable drop-in replacement in most designs.
  • TSOP2238 --: 38 kHz IR receiver with similar sensitivity and supply voltage range, usable alternative when TSOP1238 is unavailable.

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