TSMP1138 Remote Receiver Sensor - Equivalent & Substitute Parts

Part Overview

The TSMP1138 is a remote receiver sensor manufactured by Vishay Semiconductor Opto Division, designed for infrared signal reception at 38.0kHz carrier frequency with a 30-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 TSMP1138 is currently listed as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production or maintenance requirements for systems utilizing this sensor.

Substiute Parts

TSMP1138

Vishay Semiconductor Opto DivisionIn Stock: 944TSMP1138 Datasheet

Current PartRFQ

TSMP91100

Vishay Semiconductor Opto DivisionIn Stock: 929TSMP91100 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSMP1138 is determined by the following critical parameters:

• B.P.F. Center Frequency: Must be 38.0kHz to maintain compatibility with existing infrared transmission protocols
• Mounting Type: Must be through-hole to ensure mechanical compatibility with PCB layouts
• Orientation: Must be side view to match component placement and signal reception geometry
• Voltage Supply Range: Must accommodate 2.5V to 5.5V operation
• Operating Temperature Range: Must support -25°C to 85°C minimum

The TSMP91100 qualifies as a manufacturer-recommended substitute based on these core electrical and mechanical parameters. While the sensing distance differs (10m versus 30m), the fundamental receiver architecture, frequency response, and electrical characteristics remain compatible for applications where the reduced range is acceptable.

Parameter Comparison

Engineering Selection Recommendations

The TSMP91100 is designated as the manufacturer-recommended substitute for the obsolete TSMP1138. Both components share identical B.P.F. center frequency (38.0kHz), supply voltage range (2.5V ~ 5.5V), mounting type (through-hole), orientation (side view), and operating temperature range (-25°C ~ 85°C).

The primary distinction is sensing distance: the TSMP91100 provides 10-meter range compared to the TSMP1138's 30-meter range. Additionally, the TSMP91100 demonstrates lower supply current consumption (700µA versus 900µA), which may provide secondary benefits in power-constrained applications.

The TSMP91100 carries active product status, ensuring ongoing manufacturer support, availability, and compliance with current regulatory standards. Both components maintain ROHS3 compliance and MSL Level 1 classification.

Frequently Asked Questions (FAQ)

Q: Can the TSMP91100 directly replace the TSMP1138 in existing designs?

A: The TSMP91100 is electrically and mechanically compatible with the TSMP1138 for through-hole PCB mounting. The primary consideration is sensing distance: applications requiring 30-meter reception range must evaluate whether 10-meter range is acceptable for their specific use case.

Q: What is the impact of the reduced sensing distance?

A: The TSMP91100's 10-meter sensing distance is a hardware limitation determined by the receiver's optical and electronic design. Applications must be assessed to determine if this range meets operational requirements.

Q: Are there any supply voltage or temperature compatibility concerns?

A: No. Both components operate across identical voltage ranges (2.5V ~ 5.5V) and temperature ranges (-25°C ~ 85°C), ensuring direct electrical compatibility in these parameters.

Q: Does the lower current consumption of the TSMP91100 affect performance?

A: The TSMP91100's 700µA supply current (versus 900µA for the TSMP1138) reflects optimized receiver design. This reduction does not compromise signal reception quality within the specified 10-meter range.

Q: Are there packaging or mounting differences?

A: Both components utilize identical through-hole mounting type and side-view orientation, ensuring mechanical compatibility with existing PCB layouts and component placement.

Q: What is the compliance status of the TSMP91100?

A: The TSMP91100 maintains ROHS3 compliance and MSL Level 1 classification, meeting current regulatory requirements for electronic component manufacturing and distribution.