TPSMB11AHE3/52T Equivalent & Substitute Parts

Part Overview

The TPSMB11AHE3/52T is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for surface mount applications in automotive-grade circuits requiring transient voltage protection. The part is currently classified as obsolete, making identification of equivalent and substitute components essential for ongoing design support and production continuity.

Substiute Parts

TPSMB11AHE3/52T

Vishay General Semiconductor - Diodes DivisionIn Stock: 832TPSMB11AHE3/52T Datasheet

Current PartRFQ

TPSMB11AHE3_A/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 766TPSMB11AHE3_A/H Datasheet

DirectRFQ

PTVS10VP1UP,115

Nexperia USA Inc.In Stock: 3851PTVS10VP1UP,115 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TPSMB11AHE3/52T are identified based on the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - Reverse Standoff (Typ): 9.4V nominal
• Voltage - Clamping (Max) @ Ipp: 15.6V maximum
• Current - Peak Pulse (10/1000µs): 38.5A minimum
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA (SMB) or equivalent surface mount package
• Automotive Grade with AEC-Q101 qualification
• RoHS3 compliance

Substitutes are grouped into two categories: direct manufacturer equivalents and manufacturer-recommended alternatives. Direct equivalents maintain identical electrical specifications and packaging. Manufacturer-recommended alternatives provide functionally equivalent protection within the specified voltage and current parameters while accommodating minor variations in package form factor.

Parameter Comparison

Engineering Selection Recommendations

TPSMB11AHE3_A/H (Direct Equivalent): This part is the primary substitute for the obsolete TPSMB11AHE3/52T. It maintains identical electrical specifications, package form factor (DO-214AA, SMB), and automotive qualification (AEC-Q101). The part is currently in active production status with confirmed inventory availability. This substitute requires no circuit redesign and provides direct pin-for-pin compatibility.

PTVS10VP1UP,115 (Manufacturer-Recommended Alternative): This Nexperia part is qualified as a manufacturer-recommended substitute. It meets automotive-grade requirements with AEC-Q101 qualification and maintains the same power dissipation rating (600W). The part operates within compatible voltage parameters: 10V reverse standoff versus 9.4V, and 17V clamping versus 15.6V. Peak pulse current is 35.3A versus 38.5A. The package form factor differs (SOD-128 versus DO-214AA), requiring PCB layout modification. Operating temperature range is -55°C ~ 150°C (TA) versus -65°C ~ 185°C (TJ), which may impact applications requiring extended temperature performance. This alternative is suitable for designs where package footprint modification is acceptable.

Frequently Asked Questions (FAQ)

Q: Can TPSMB11AHE3_A/H be used as a direct replacement for TPSMB11AHE3/52T?

A: Yes. TPSMB11AHE3_A/H is a direct equivalent with identical electrical specifications and package form factor. No circuit modifications are required. The primary difference is product status: TPSMB11AHE3_A/H is in active production while TPSMB11AHE3/52T is obsolete.

Q: What are the key differences between TPSMB11AHE3/52T and PTVS10VP1UP,115?

A: The primary differences are: (1) Reverse standoff voltage is 10V versus 9.4V; (2) Clamping voltage is 17V versus 15.6V; (3) Peak pulse current is 35.3A versus 38.5A; (4) Package form factor is SOD-128 versus DO-214AA; (5) Operating temperature range is -55°C ~ 150°C versus -65°C ~ 185°C. Both parts maintain 600W peak pulse power and AEC-Q101 automotive qualification.

Q: Is package compatibility a concern when substituting with PTVS10VP1UP,115?

A: Yes. PTVS10VP1UP,115 uses SOD-128 package while TPSMB11AHE3/52T uses DO-214AA (SMB) package. PCB layout and footprint modifications are required. Verify that the SOD-128 package dimensions are compatible with your circuit board design constraints.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. Both TPSMB11AHE3_A/H and PTVS10VP1UP,115 are ROHS3 compliant with MSL rating of 1 (Unlimited), matching the original part specifications.

Q: Which substitute should be selected for new designs?

A: For new designs requiring the original electrical and thermal specifications, TPSMB11AHE3_A/H is the recommended choice due to identical specifications and active production status. PTVS10VP1UP,115 is suitable only if the higher clamping voltage (17V), lower peak pulse current (35.3A), and reduced operating temperature range (-55°C ~ 150°C) are acceptable for your application, and if package footprint modification is feasible.