TSOP77038TR Equivalent & Substitute Parts

Part Overview

The TSOP77038TR is a remote receiver sensor manufactured by Vishay Semiconductor Opto Division, designed for infrared signal reception at 38.0kHz with a 40-meter sensing distance. This component is classified as an optical sensor for surface mount applications. The TSOP77038TR is currently listed as obsolete, making identification of compatible substitute parts essential for ongoing production and maintenance applications. The primary reason for seeking alternatives is the discontinued status of this component, which necessitates sourcing from active product lines that maintain equivalent electrical and mechanical specifications.

Substiute Parts

TSOP77038TR

Vishay Semiconductor Opto DivisionIn Stock: 777TSOP77038TR Datasheet

Current PartRFQ

TSSP77P38TT

Vishay Semiconductor Opto DivisionIn Stock: 10932TSSP77P38TT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSOP77038TR is determined by the following critical parameters:

Primary Matching Criteria:

• B.P.F. Center Frequency: 38.0kHz (exact match required)
• Sensing Distance: 40m (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: -25°C ~ 85°C (must encompass or match)

Secondary Compatibility Criteria:

• Voltage Supply Range: Must be compatible with or broader than 2.7 V ~ 5.5 V
• Current Supply: Lower values indicate improved efficiency; values up to 850 µA are acceptable
• RoHS and REACH Compliance: Must maintain ROHS3 Compliant and REACH Unaffected status
• Moisture Sensitivity Level: MSL 4 or lower acceptable

The TSSP77P38TT meets all primary and secondary criteria, establishing it as a direct functional equivalent suitable for replacement in applications currently using the TSOP77038TR.

Parameter Comparison

Engineering Selection Recommendations

The TSSP77P38TT is the recommended substitute for the obsolete TSOP77038TR based on the following engineering factors:

Product Status Alignment: The TSSP77P38TT maintains active production status with Vishay Semiconductor Opto Division, ensuring long-term availability and supply chain continuity compared to the discontinued TSOP77038TR.

Regulatory Compliance: Both components maintain identical ROHS3 Compliant and REACH Unaffected certifications, ensuring compliance with current environmental and regulatory requirements.

Functional Equivalence: The substitute part maintains exact specifications for the critical parameters that define sensor functionality: 38.0kHz center frequency, 40-meter sensing distance, and identical operating temperature range of -25°C to 85°C.

Performance Improvement: The TSSP77P38TT demonstrates improved power efficiency with a supply current of 700 µA compared to the 850 µA of the original part, while maintaining full functional compatibility.

Voltage Supply Consideration: The substitute part operates across a voltage range of 2.5 V to 5.5 V, which is compatible with the original specification of 2.7 V to 5.5 V. Applications operating above 2.5 V will experience no functional difference.

Frequently Asked Questions (FAQ)

Q: Can the TSSP77P38TT be used as a direct replacement for the TSOP77038TR?

A: Yes. The TSSP77P38TT is functionally equivalent across all critical parameters: 38.0kHz center frequency, 40-meter sensing distance, surface mount packaging, and identical operating temperature range. The substitute is manufactured by the same company and maintains equivalent regulatory compliance.

Q: What is the difference in power consumption between these parts?

A: The TSSP77P38TT draws 700 µA compared to the TSOP77038TR's 850 µA. This represents a 17.6% reduction in supply current, resulting in lower power consumption in the application circuit.

Q: Are there packaging differences between the TSOP77038TR and TSSP77P38TT?

A: Both components are surface mount devices supplied in Tape & Reel (TR) packaging. The TSOP77038TR specifies Side or Top View orientation, while the TSSP77P38TT specifies Top View orientation. Both are compatible with standard surface mount assembly processes.

Q: What is the minimum supply voltage for the TSSP77P38TT?

A: The TSSP77P38TT operates at a minimum supply voltage of 2.5 V, compared to the TSOP77038TR's 2.7 V minimum. Applications designed for the original part operating above 2.5 V will function without modification.

Q: Do both parts have the same moisture sensitivity requirements?

A: Yes. Both the TSOP77038TR and TSSP77P38TT are classified as MSL 4 (Moisture Sensitivity Level 4), requiring storage and handling under controlled humidity conditions with a maximum exposure time of 72 hours at 30°C and 85% relative humidity before soldering.

Q: Is the TSSP77P38TT available in higher quantities?

A: Yes. The TSSP77P38TT is in active production with significantly higher inventory availability (10,823 pieces) compared to the obsolete TSOP77038TR (746 pieces remaining), ensuring reliable supply for production requirements.