TPSMA22AHE3_A/I Equivalent & Substitute Parts

Part Overview

The TPSMA22AHE3_A/I is a unidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for surface mount applications in the DO-214AC (SMA) package and provides transient overvoltage protection with a 30.6V clamping voltage and 13.1A peak pulse current capability. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	18.8V
Voltage - Breakdown (Min)	20.9V
Voltage - Clamping (Max) @ Ipp	30.6V
Current - Peak Pulse (10/1000µs)	13.1A
Power - Peak Pulse	400W
Package / Case	DO-214AC, SMA
Mounting Type	Surface Mount
Operating Temperature Range	-65°C ~ 185°C (TJ)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the TPSMA22AHE3_A/I is determined by the following critical parameters:

Voltage - Reverse Standoff (Typ): 18.8V
Voltage - Breakdown (Min): 20.9V
Voltage - Clamping (Max) @ Ipp: 30.6V
Current - Peak Pulse (10/1000µs): 13.1A minimum
Package / Case: DO-214AC, SMA
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

All identified substitute parts maintain these electrical specifications and package requirements. Differences in operating temperature range, product status, and manufacturer do not affect functional substitution within the specified electrical parameters.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Package / Case	Operating Temperature	Product Status
TPSMA22AHE3_A/I	Vishay General Semiconductor - Diodes Division	18.8V	20.9V	30.6V	13.1A	400W	DO-214AC, SMA	-65°C ~ 185°C	Obsolete
P4SMA22A-E3/5A	Vishay General Semiconductor - Diodes Division	18.8V	20.9V	30.6V	13.1A	400W	DO-214AC, SMA	-65°C ~ 150°C	Active
P4SMA22A-E3/61	Vishay General Semiconductor - Diodes Division	18.8V	20.9V	30.6V	13.1A	400W	DO-214AC, SMA	-65°C ~ 150°C	Active
TPSMA22AHE3_B/I	Vishay General Semiconductor - Diodes Division	18.8V	20.9V	30.6V	13.1A	400W	DO-214AC, SMA	-65°C ~ 185°C	Active
SMAJP4KE22A-TP	Micro Commercial Co	18.8V	20.9V	30.6V	13.4A	400W	DO-214AC, SMA	-55°C ~ 175°C	Active

Engineering Selection Recommendations

For applications currently using the obsolete TPSMA22AHE3_A/I, the following selection criteria apply:

Primary Recommendation: TPSMA22AHE3_B/I is the direct functional equivalent from Vishay General Semiconductor - Diodes Division. This part maintains identical electrical specifications, automotive-grade qualification (AEC-Q101), and extended operating temperature range (-65°C ~ 185°C). Product status is active with established supply availability.

Alternative from Same Manufacturer: P4SMA22A-E3/5A and P4SMA22A-E3/61 are active Vishay products with identical electrical performance. These parts operate within a reduced temperature range (-65°C ~ 150°C) and are available in tape and reel packaging. Selection between these variants depends on packaging and inventory requirements.

Cross-Manufacturer Option: SMAJP4KE22A-TP from Micro Commercial Co meets all electrical specifications with a peak pulse current of 13.4A, exceeding the minimum requirement. Operating temperature range is -55°C ~ 175°C. This option is suitable for applications where the reduced lower temperature limit is acceptable.

All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can TPSMA22AHE3_B/I directly replace TPSMA22AHE3_A/I?

A: Yes. Both parts are manufactured by Vishay General Semiconductor - Diodes Division with identical electrical specifications, package type (DO-214AC, SMA), and automotive qualification. The primary difference is product status; TPSMA22AHE3_B/I is active while TPSMA22AHE3_A/I is obsolete.

Q: What is the difference between P4SMA22A-E3/5A and P4SMA22A-E3/61?

A: Both parts have identical electrical specifications and package type. The designation difference reflects packaging configuration. P4SMA22A-E3/5A and P4SMA22A-E3/61 are both available in tape and reel format with the same electrical performance.

Q: Can SMAJP4KE22A-TP be used in place of the Vishay parts?

A: Yes, for applications where the operating temperature range of -55°C ~ 175°C is acceptable. The SMAJP4KE22A-TP exceeds the electrical requirements with 13.4A peak pulse current versus the specified 13.1A. All other parameters, including voltage ratings and package type, are compatible.

Q: Does operating temperature range affect substitution?

A: Operating temperature range affects substitution only if the application requires operation outside the substitute part's specified range. TPSMA22AHE3_B/I maintains the full -65°C ~ 185°C range of the original part. P4SMA22A series parts operate to -65°C ~ 150°C, and SMAJP4KE22A-TP operates to -55°C ~ 175°C. Verify application requirements before selection.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 rating, meeting standard environmental and manufacturing requirements.

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