TSMP4138 Remote Receiver Sensor - Equivalent & Substitute Parts

Part Overview

The TSMP4138 is a remote receiver sensor manufactured by Vishay Semiconductor Opto Division, designed for infrared signal reception at 38.0kHz carrier frequency with a 20-meter sensing distance. This component is classified as an optical sensor for through-hole mounting applications and operates across a 2.5V to 5.5V supply voltage range.

The TSMP4138 has reached obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

TSMP4138

Vishay Semiconductor Opto DivisionIn Stock: 700TSMP4138 Datasheet

Current PartRFQ

TSMP94100

Vishay Semiconductor Opto DivisionIn Stock: 987TSMP94100 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSMP4138 is determined by the following critical parameters:

• B.P.F. Center Frequency: Must be 38.0kHz to maintain compatibility with existing infrared transmission protocols
• Voltage Supply Range: Must encompass or be compatible with 2.5V ~ 5.5V operation
• Mounting Type: Must be Through Hole to ensure PCB compatibility
• Orientation: Must be Side View to match mechanical placement requirements
• Operating Temperature Range: Must support -25°C ~ 85°C minimum

The TSMP94100 qualifies as a substitute part. While it features a reduced sensing distance of 9 meters compared to the original 20 meters, it maintains identical B.P.F. center frequency, voltage supply compatibility, mounting type, orientation, and operating temperature range. The lower current consumption (700µA versus 900µA) represents an additional benefit for power-constrained applications.

Parameter Comparison

Engineering Selection Recommendations

The TSMP94100 is the qualified substitute for the obsolete TSMP4138. Selection of the TSMP94100 is supported by the following factors:

• Product Status: The TSMP94100 maintains active product status, ensuring ongoing availability and manufacturer support, whereas the TSMP4138 is obsolete
• Regulatory Compliance: The TSMP4138 is ROHS3 compliant; compliance status for the TSMP94100 is not specified in the provided data
• Electrical Compatibility: Both components operate within identical voltage supply ranges and maintain the same B.P.F. center frequency
• Mechanical Compatibility: Both components feature identical through-hole mounting type and side-view orientation, ensuring direct PCB placement compatibility
• Thermal Range: Both components support the full -25°C to 85°C operating temperature range

The primary design consideration is the reduced sensing distance of the TSMP94100 (9m versus 20m). Applications requiring the full 20-meter reception range must evaluate whether the reduced distance is acceptable for the intended use case.

Frequently Asked Questions (FAQ)

Q: Can the TSMP94100 be used as a direct replacement for the TSMP4138?

A: The TSMP94100 is mechanically and electrically compatible with the TSMP4138 for through-hole PCB mounting. The primary difference is sensing distance: 9 meters versus 20 meters. Direct replacement is feasible only if the application does not require the extended 20-meter range.

Q: What is the significance of the B.P.F. center frequency match?

A: The B.P.F. (Band Pass Filter) center frequency of 38.0kHz must remain constant to maintain compatibility with infrared transmission protocols and remote control systems. Both the TSMP4138 and TSMP94100 operate at 38.0kHz, ensuring protocol compatibility.

Q: Are there any differences in power consumption between these parts?

A: Yes. The TSMP94100 draws 700µA compared to the TSMP4138's 900µA supply current. This 200µA reduction may provide benefits in power-constrained applications.

Q: Does the TSMP94100 fit the same PCB footprint?

A: Both components feature identical through-hole mounting type and side-view orientation. PCB footprint compatibility is maintained, allowing direct component substitution without PCB redesign.

Q: What should be considered before selecting the TSMP94100?

A: Verify that your application can operate within the reduced 9-meter sensing distance. If the original 20-meter range is critical to system performance, alternative solutions must be evaluated. Confirm RoHS compliance requirements with the TSMP94100 manufacturer if regulatory compliance is mandatory for your application.