IR Receiver Compatible with TSOP1738 | DY-1138
Compatible alternative to the TSOP1738 infrared receiver
•Carrier Frequency: 38kHz、56kHz
•Operating Voltage: 2.5V – 6.0V
•Receiving Distance: 8-30 meters
•Receiving Angle: +—45°
•Operating Temperature: -25°C ~ 85°C
•Package: 3-pin DIP
Reliable 38kHz IR Signal Reception
The DY-1138 IR Receiver, designed as a TSOP1738 compatible solution, provides stable 38kHz infrared signal reception for remote control and electronic control systems.
With integrated signal filtering and demodulation circuits, the receiver delivers reliable performance even in environments affected by electrical noise or ambient light interference. This makes it suitable for a wide range of consumer and electronic control applications.
DY-1138 IR Large Bridge Design
DY-1138 adopts a large bridge encapsulation structure, which increases the effective receiving area of the infrared sensor. This design helps improve signal reception distance and stability, ensuring reliable response in remote control systems where consistent detection is essential.


DY-1138 IR Suitable For?
DY-1138 is widely used in:
- TV and set-top box remote control systems
- Smart home appliances
- Air conditioners and household electronics
- Industrial control devices
- Infrared communication modules
Its stable reception and strong anti-interference capability make it suitable for both consumer electronics and equipment control systems.
Engineers Consider for IR receiver
When selecting a compatible IR receiver, engineers typically evaluate:
- Carrier frequency accuracy (38kHz)
- Receiving distance and sensitivity
- Ambient light immunity
- Electrical stability in mass production
Choosing a reliable manufacturer helps ensure consistent performance across production batches.


Engineering Support for Integration
As a manufacturer specializing in infrared receivers and optoelectronic components, we support customers from engineering evaluation to large-scale production. Technical support for IR receiver selection and system integration, including:
- Equivalent model recommendations
- TX/RX pairing suggestions
- Application troubleshooting support
This helps shorten development cycles and improve system stability.
DY-1138 IR Receiver Product Parameters
- Parameter
- Inquiry & Supply Process
| (P/N) | Operating voltage | Quiescent Current | Receiving distance | Pin length | Features |
| DY-1138WXX | 2.5-6.0v | 50-1200μA | 8-30m | 22-43 mm | Long distance |
| DY-1138VXX | 2.5-6.0v | 50-1200μA | 8-30m | 22-43 mm | Low power consumption |
| DY-1138BXX | 2.5-6.0v | 50-1200μA | 8-30m | 22-43 mm | Anti-light interference |
| DY-1138FXX | 2.5-6.0v | 50-1200μA | 8-30m | 22-43 mm | High sensitivity |
| DY-1138AXX | 2.5-6.0v | 50-1200μA | 8-30m | 22-43 mm | Anti-5G, Wifi |
| DY-1138XXX | 2.5-6.0v | 50-1200μA | 8-30m | 22-43 mm | Continuous decoding |
| DY-1138CXX | 2.5-6.0v | 50-1200μA | 8-30m | 22-43 mm | Narrow code decoding |
The same appearance, different features are emphasized. Please contact our technical staff if needed.
Inquiry Submission
Submit your inquiry request, providing the required model, specifications, or compatible brand model (for example, VS1838B). At the same time, we can also provide basic technical information and application requirements for reference.
Technical Evaluation
Engineers will recommend suitable infrared receiver models based on the application scenario to ensure compatibility with system design and signal requirements.
Sample Arrangement
Provide engineering samples for functional verification, including reception distance, signal stability, and circuit compatibility.
Engineering Confirmation
After testing and validation, confirm key parameters and product specifications to support subsequent project development.
Mass Production Supply
Arrange stable mass production supply to support the customer’s production plan, ensuring product quality is stable and reliable.
In most cases, DY-1138 can replace TSOP1738 directly, as it follows the same 3-pin configuration and 38kHz infrared signal reception standard. However, for critical applications, engineering teams are recommended to perform system-level testing to ensure optimal performance.
The large bridge encapsulation design improves optical reception performance by: Increasing the effective receiving area, enhancing reception distance; Improving signal stability in complex environments. This structure is especially beneficial in products that require reliable remote control performance.
DY-1138 integrates advanced noise suppression and filtering circuits, allowing stable operation under: Indoor lighting; Sunlight interference; Fluorescent lamp environments. This helps reduce false triggering and signal loss, improving system reliability.
Yes. DY-1138 IR receivers are available for bulk supply and long-term production projects. With stable manufacturing capability and controlled production processes, we support customers requiring consistent component supply for large-scale electronics production.
Yes. In addition to standard 38kHz IR receivers, customization options may include: Different carrier frequencies (e.g., 36kHz / 40kHz / 56kHz); Various package styles; Specific sensitivity or filtering requirements










