TPSMP15AHM3/85A Equivalent & Substitute Parts

Part Overview

The TPSMP15AHM3/85A is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for transient overvoltage protection in automotive and industrial applications, featuring a 12.8V reverse standoff voltage and 21.2V maximum clamping voltage. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement continuity.

Substiute Parts

TPSMP15AHM3/85A

Vishay General Semiconductor - Diodes DivisionIn Stock: 970TPSMP15AHM3/85A Datasheet

Current PartRFQ

TPSMP15AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1168TPSMP15AHM3_A/I Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TPSMP15AHM3/85A is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 12.8V
• Voltage - Breakdown (Min): 14.3V
• Voltage - Clamping (Max) @ Ipp: 21.2V
• Current - Peak Pulse (10/1000µs): 18.9A
• Power - Peak Pulse: 400W
• Unidirectional Channels: 1
• Package / Case: DO-220AA (SMP)
• Operating Temperature Range: -65°C ~ 185°C (TJ)
• Type: Zener
• Grade: Automotive
• Qualification: AEC-Q101

The substitute part TPSMP15AHM3_A/I meets all electrical and mechanical specifications required for direct substitution. The primary distinction is product status and packaging configuration.

Parameter Comparison

Engineering Selection Recommendations

The TPSMP15AHM3_A/I is a direct functional equivalent to the TPSMP15AHM3/85A. Both components share identical electrical specifications, thermal operating range, automotive grade classification, and AEC-Q101 qualification. The substitute part maintains full compliance with ROHS3 and REACH requirements.

The primary advantage of TPSMP15AHM3_A/I is active product status, ensuring long-term availability and manufacturing support. The packaging difference (Tape & Reel versus bulk) reflects standard distribution practices and does not affect electrical performance or circuit compatibility.

Selection of TPSMP15AHM3_A/I is appropriate for new designs, redesigns, and production continuity where the obsolete TPSMP15AHM3/85A is no longer available through standard procurement channels.

Frequently Asked Questions (FAQ)

Q: Can TPSMP15AHM3_A/I be used as a direct replacement for TPSMP15AHM3/85A in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters. No circuit modifications are required.

Q: What is the difference between the two part numbers?

A: The primary differences are product status and packaging configuration. TPSMP15AHM3/85A is obsolete and supplied in bulk packaging. TPSMP15AHM3_A/I is active and supplied in Tape & Reel format, which is standard for automated assembly processes.

Q: Are there any thermal or electrical performance differences?

A: No. Both parts operate across the same temperature range (-65°C to 185°C) and deliver identical electrical performance: 12.8V reverse standoff voltage, 21.2V clamping voltage, and 18.9A peak pulse current.

Q: Does the Tape & Reel packaging affect circuit performance?

A: No. Packaging configuration affects only handling, storage, and assembly logistics. Electrical and thermal characteristics remain unchanged.

Q: Are both parts qualified for automotive applications?

A: Yes. Both TPSMP15AHM3/85A and TPSMP15AHM3_A/I carry automotive grade classification and AEC-Q101 qualification.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating.