IRM-H538/TR2 Equivalent & Substitute Parts

Part Overview

The IRM-H538/TR2 is a remote receiver sensor manufactured by Everlight Electronics Co Ltd, designed to detect infrared signals at a center frequency of 38.0kHz with an 8-meter sensing distance. This optical sensor operates across a supply voltage range of 2.7V to 5.5V and draws 1.2mA during operation. The component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations where this specific model is no longer available through standard distribution channels.

Substiute Parts

IRM-H538/TR2

Everlight Electronics Co LtdIn Stock: 866IRM-H538/TR2 Datasheet

Current PartRFQ

TSOP6238TT

Vishay Semiconductor Opto DivisionIn Stock: 19809TSOP6238TT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IRM-H538/TR2 is determined by strict alignment of the following critical parameters:

Primary Matching Criteria:

• B.P.F. Center Frequency: 38.0kHz (infrared signal detection standard)
• Mounting Type: Surface Mount (physical compatibility)
• Orientation: Top View (circuit board layout compatibility)
• Operating Temperature Range: -25°C ~ 85°C (environmental operating envelope)

Secondary Compatibility Factors:

• Supply Voltage Range: Must encompass or be compatible with 2.7V ~ 5.5V
• Current Supply: Substitute performance must be acceptable within system power budget constraints
• Sensing Distance: Extended range capability does not preclude substitution but indicates enhanced performance

The TSOP6238TT from Vishay Semiconductor Opto Division qualifies as a substitute based on matching the primary criteria. This part maintains the 38.0kHz center frequency, surface mount configuration, top view orientation, and identical operating temperature range. The substitute demonstrates enhanced specifications in sensing distance (40m versus 8m) and reduced current consumption (700µA versus 1.2mA), while maintaining voltage supply compatibility within the specified range.

Parameter Comparison

Engineering Selection Recommendations

TSOP6238TT Selection Basis:

The TSOP6238TT is the identified substitute for the obsolete IRM-H538/TR2 based on the following engineering factors:

1. Functional Equivalence: Both components operate at the 38.0kHz infrared detection standard, ensuring compatibility with existing remote control signal protocols and receiver circuit designs.

2. Physical Integration: Identical surface mount packaging and top view orientation enable direct board-level substitution without circuit layout modifications.

3. Thermal Compatibility: Matching operating temperature range (-25°C ~ 85°C) ensures performance consistency across specified environmental conditions.

4. Supply Voltage Compatibility: The TSOP6238TT supply range (2.5V ~ 5.5V) encompasses the IRM-H538/TR2 requirement (2.7V ~ 5.5V), confirming power supply circuit compatibility.

5. Active Product Status: The TSOP6238TT maintains active production status with 19,747 units in stock, providing reliable long-term availability compared to the obsolete IRM-H538/TR2.

6. Regulatory Compliance: Both components share identical REACH and ECCN classifications (REACH Unaffected, EAR99), maintaining compliance requirements.

Performance Enhancement: The substitute demonstrates improved specifications with 40-meter sensing distance and reduced 700µA current consumption, offering system-level benefits without compromising core functionality.

MSL Consideration: The TSOP6238TT carries MSL 4 (72-hour moisture sensitivity) compared to MSL 1 (unlimited) for the original part. This difference requires adherence to standard moisture control procedures during storage and handling but does not preclude substitution in standard manufacturing environments.

Frequently Asked Questions (FAQ)

Q: Can the TSOP6238TT directly replace the IRM-H538/TR2 in existing designs?

A: Yes. Both components share identical 38.0kHz center frequency, surface mount configuration, top view orientation, and operating temperature range. The TSOP6238TT is electrically and mechanically compatible for direct substitution.

Q: What is the significance of the different sensing distances (8m vs. 40m)?

A: The TSOP6238TT provides extended sensing range capability. In applications requiring only 8-meter detection, the substitute performs equivalently. In applications benefiting from extended range, the TSOP6238TT offers enhanced performance without design modification.

Q: How does the reduced current consumption (700µA vs. 1.2mA) affect system design?

A: The TSOP6238TT draws 41% less current than the original part. This reduction improves power efficiency and reduces thermal load, benefiting battery-powered and low-power applications. No circuit redesign is required.

Q: Are there supply voltage compatibility concerns?

A: No. The TSOP6238TT minimum supply voltage (2.5V) is lower than the IRM-H538/TR2 minimum (2.7V), and both share the 5.5V maximum. Existing power supply circuits require no modification.

Q: What does MSL 4 (72 Hours) mean for the TSOP6238TT?

A: MSL 4 indicates the component must be used within 72 hours of package opening in standard manufacturing environments (23°C, 50% relative humidity). This is standard practice in electronics manufacturing and does not prevent substitution in conventional production settings.

Q: Is the TSOP6238TT available in the same packaging format?

A: The TSOP6238TT is supplied in Cut Tape (CT) and Digi-Reel® packaging. Verify packaging compatibility with your procurement and assembly processes.

Q: Are there any regulatory or compliance differences?

A: Both components share identical REACH and ECCN classifications. No compliance modifications are required for substitution.

Q: Why is the original IRM-H538/TR2 classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The TSOP6238TT, maintained in active production with substantial inventory, provides continuity for applications requiring 38.0kHz remote receiver functionality.