TPSMA16AHE3_A/I Equivalent & Substitute Parts

Part Overview

The TPSMA16AHE3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the DO-214AC (SMA) package and is designed for transient voltage protection applications. The part is currently classified as obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

Substiute Parts

TPSMA16AHE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1112TPSMA16AHE3_A/I Datasheet

Current PartRFQ

TPSMA16AHE3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 972TPSMA16AHE3_B/I Datasheet

DirectRFQ

P4SMA16A

Eaton - Electronics DivisionIn Stock: 66543P4SMA16A Datasheet

MFR RecommendedRFQ

P4SMA16A_R1_00001

Panjit International Inc.In Stock: 893P4SMA16A_R1_00001 Datasheet

MFR RecommendedRFQ

SMAJP4KE16A-TP

Micro Commercial CoIn Stock: 688SMAJP4KE16A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TPSMA16AHE3_A/I is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 13.6V
• Voltage - Breakdown (Min): 15.2V
• Voltage - Clamping (Max) @ Ipp: 22V (±0.5V tolerance acceptable)
• Current - Peak Pulse (10/1000µs): 17.8A (minimum)
• Power - Peak Pulse: 400W
• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount
• Unidirectional Channels: 1

All listed substitute parts meet these core electrical and mechanical specifications within acceptable engineering tolerances for TVS diode applications.

Parameter Comparison

Engineering Selection Recommendations

TPSMA16AHE3_B/I is the direct equivalent from Vishay. This part maintains identical electrical specifications and operating temperature range as the original TPSMA16AHE3_A/I. The primary difference is product status (Active vs. Obsolete) and packaging format (Tape & Reel). This substitute is recommended for applications requiring automotive-grade qualification and the full -65°C ~ 185°C operating range.

P4SMA16A (Eaton) and SMAJP4KE16A-TP (Micro Commercial Co) are functionally equivalent alternatives with marginally higher clamping voltage (22.5V vs. 22V) and peak pulse current ratings. These parts operate within a reduced temperature range (-55°C ~ 150°C and -55°C ~ 175°C respectively) compared to the original specification. Selection of these alternatives is appropriate for applications where the narrower temperature range is acceptable.

P4SMA16A_R1_00001 (Panjit) offers the highest peak pulse current rating (19A) among substitutes while maintaining the same clamping voltage tolerance. This part is supplied in Tape & Reel packaging and operates within -55°C ~ 150°C. This option is suitable for applications requiring enhanced current handling capability within the specified temperature window.

All substitute parts are RoHS compliant and maintain the DO-214AC (SMA) surface mount package format, ensuring mechanical and thermal compatibility with existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can TPSMA16AHE3_B/I be used as a direct replacement for TPSMA16AHE3_A/I?

A: Yes. TPSMA16AHE3_B/I is the direct equivalent with identical electrical specifications. The difference is packaging format (Tape & Reel vs. bulk) and product status (Active vs. Obsolete).

Q: What is the difference between the Vishay and Eaton substitutes?

A: TPSMA16AHE3_B/I maintains the original -65°C ~ 185°C operating range. P4SMA16A operates at -55°C ~ 150°C with marginally higher clamping voltage (22.5V). Selection depends on application temperature requirements.

Q: Are all substitutes compatible with the original DO-214AC (SMA) footprint?

A: Yes. All listed substitutes use the DO-214AC (SMA) surface mount package, ensuring direct PCB compatibility without layout modifications.

Q: Which substitute offers the best current handling capability?

A: P4SMA16A_R1_00001 provides the highest peak pulse current rating at 19A, compared to 17.8A for the original part.

Q: Do all substitutes meet automotive qualification requirements?

A: TPSMA16AHE3_B/I carries AEC-Q101 automotive qualification matching the original. P4SMA16A, P4SMA16A_R1_00001, and SMAJP4KE16A-TP do not specify automotive grade in the provided data.

Q: What packaging options are available for these substitutes?

A: TPSMA16AHE3_B/I is supplied in Tape & Reel. P4SMA16A_R1_00001 is supplied in Tape & Reel. P4SMA16A and SMAJP4KE16A-TP packaging formats are specified as standard and bulk respectively.