TPSMA22AHE3_A/H Equivalent & Substitute Parts

Part Overview

The TPSMA22AHE3_A/H 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.

Substiute Parts

TPSMA22AHE3_A/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 1164TPSMA22AHE3_A/H Datasheet

Current PartRFQ

P4SMA22A-E3/5A

Vishay General Semiconductor - Diodes DivisionIn Stock: 1216P4SMA22A-E3/5A Datasheet

DirectRFQ

P4SMA22A-E3/61

Vishay General Semiconductor - Diodes DivisionIn Stock: 742P4SMA22A-E3/61 Datasheet

DirectRFQ

TPSMA22AHE3_B/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 3295TPSMA22AHE3_B/H Datasheet

DirectRFQ

SMAJP4KE22A-TP

Micro Commercial CoIn Stock: 709SMAJP4KE22A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPSMA22AHE3_A/H is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• 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 acceptable)
• Power - Peak Pulse: 400W
• Type: Zener, Unidirectional

Mechanical Compatibility Criteria:

• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount

Compliance Criteria:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into two categories based on product status and operational temperature range:

Category 1 - Active Vishay Parts (Same Series): TPSMA22AHE3_B/H, P4SMA22A-E3/5A, and P4SMA22A-E3/61 maintain identical electrical specifications and package compatibility. TPSMA22AHE3_B/H is the direct active replacement within the PAR® series with automotive qualification (AEC-Q101) and extended temperature range (-65°C ~ 185°C). P4SMA22A variants are active alternatives from the TransZorb® series with reduced operating temperature range (-65°C ~ 150°C).

Category 2 - Alternative Manufacturer: SMAJP4KE22A-TP from Micro Commercial Co provides electrical equivalence with a marginal increase in peak pulse current (13.4A) and operates within -55°C ~ 175°C temperature range.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: TPSMA22AHE3_B/H

TPSMA22AHE3_B/H is the direct active replacement for the obsolete TPSMA22AHE3_A/H. Both parts share identical electrical specifications, automotive grade classification, and AEC-Q101 qualification. The operating temperature range (-65°C ~ 185°C) matches the original part exactly. This part is currently in active production status with 3200 units in stock, ensuring long-term availability and supply chain continuity.

Secondary Recommendation: P4SMA22A-E3/5A or P4SMA22A-E3/61

These Vishay TransZorb® series alternatives provide full electrical equivalence with identical voltage and current ratings. Both parts maintain ROHS3 compliance and MSL 1 rating. The reduced operating temperature range (-65°C ~ 150°C) is acceptable for applications not requiring the extended upper temperature limit of 185°C. Selection between the two variants depends on packaging requirements: P4SMA22A-E3/5A is supplied in Tape & Reel with 1159 units in stock, while P4SMA22A-E3/61 is also Tape & Reel packaged with 674 units available.

Alternative Recommendation: SMAJP4KE22A-TP

SMAJP4KE22A-TP from Micro Commercial Co provides electrical equivalence with a marginal increase in peak pulse current (13.4A versus 13.1A). This part is suitable for applications where automotive qualification is not required. The operating temperature range (-55°C ~ 175°C) covers most industrial and commercial applications. This option is available in bulk packaging with 642 units in stock.

Frequently Asked Questions (FAQ)

Q: Can I use P4SMA22A-E3/5A or P4SMA22A-E3/61 as direct replacements for TPSMA22AHE3_A/H in automotive applications?

A: P4SMA22A variants are electrically equivalent but lack automotive grade classification and AEC-Q101 qualification. Use these parts only in non-automotive applications or where automotive qualification is not a design requirement. For automotive designs, TPSMA22AHE3_B/H is the appropriate choice.

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

A: Both parts have identical electrical specifications and operating temperature ranges. The designation suffix indicates different packaging configurations or tape specifications. Consult the supplier datasheet for specific tape and reel specifications if your assembly process has particular handling requirements.

Q: Is SMAJP4KE22A-TP compatible with my design if I need the full -65°C ~ 185°C temperature range?

A: No. SMAJP4KE22A-TP operates only to 175°C maximum junction temperature, which is 10°C below the original part specification. If your application requires operation at temperatures above 175°C, use TPSMA22AHE3_B/H or the original part if still available.

Q: Are all substitute parts in the same DO-214AC (SMA) package?

A: Yes. All listed substitute parts use the DO-214AC (SMA) surface mount package, ensuring mechanical and footprint compatibility with the original design.

Q: What is the significance of the peak pulse current difference in SMAJP4KE22A-TP (13.4A versus 13.1A)?

A: The 0.3A increase in peak pulse current provides additional margin for transient suppression. This is a beneficial characteristic that does not compromise compatibility. The part remains suitable for applications designed around the 13.1A specification.

Q: Can I mix different substitute parts in the same production run?

A: All listed parts meet the same electrical specifications and package requirements. However, for traceability and quality control purposes, maintain consistent part sourcing within a single production batch when possible.