TPSMC13A Equivalent & Substitute Parts

Part Overview

The TPSMC13A is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for surface mount applications in the DO-214AB (SMC) package. This component provides transient voltage protection with an 11.1V reverse standoff voltage and 18.2V maximum clamping voltage. The part is currently in active production status with AEC-Q101 automotive qualification and ROHS3 compliance. Equivalent and substitute parts are identified when they maintain identical or functionally equivalent electrical and mechanical parameters within the specified tolerance ranges for this product category.

Substiute Parts

TPSMC13A

Littelfuse Inc.In Stock: 8266TPSMC13A Datasheet

Current PartRFQ

1.5SMC13A

Taiwan Semiconductor CorporationIn Stock: 8541.5SMC13A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TPSMC13A are identified based on strict equivalence of the following critical parameters:

• Voltage - Reverse Standoff (Typ): 11.1V
• Voltage - Breakdown (Min): 12.4V
• Voltage - Clamping (Max) @ Ipp: 18.2V
• Power - Peak Pulse: 1500W
• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Unidirectional Channels: 1
• Operating Temperature Range: -55°C to 150°C

The 1.5SMC13A from Taiwan Semiconductor Corporation qualifies as a direct substitute based on matching all critical electrical parameters and identical package specifications. Peak pulse current variance (84.6A vs. 86A) remains within acceptable operational tolerance for this device category.

Parameter Comparison

Engineering Selection Recommendations

Both the TPSMC13A and 1.5SMC13A are active production components with ROHS3 compliance and REACH unaffected status. The TPSMC13A carries AEC-Q101 automotive qualification, establishing its suitability for automotive-grade applications. The 1.5SMC13A, while not explicitly listed with AEC-Q101 certification in the provided data, maintains identical electrical specifications and package configuration. Selection between these parts should be based on application-specific qualification requirements and supply chain availability. Both components are suitable for telecom and general transient voltage suppression applications within the specified parameter ranges.

Frequently Asked Questions (FAQ)

Q: Can the 1.5SMC13A directly replace the TPSMC13A in all applications?

A: Yes, for applications where AEC-Q101 automotive qualification is not a mandatory requirement. Both parts share identical voltage ratings, clamping characteristics, power dissipation capability, and package specifications. Peak pulse current differs by 2.6A (86A vs. 84.6A), which is within acceptable tolerance for this device category.

Q: What is the significance of the DO-214AB (SMC) package?

A: The DO-214AB package, commonly referred to as SMC, is a surface mount semiconductor package with standardized dimensions and pin configuration. Both the TPSMC13A and 1.5SMC13A use this identical package, ensuring mechanical and electrical compatibility on PCB layouts without modification.

Q: Are there any compliance differences between these parts?

A: Both parts are ROHS3 compliant and REACH unaffected. The TPSMC13A includes AEC-Q101 automotive qualification, which is relevant only for applications requiring automotive-grade component certification. For non-automotive applications, both parts meet equivalent compliance standards.

Q: What does "Unidirectional Channels: 1" mean for substitution purposes?

A: This indicates both parts are single-channel TVS diodes, meaning they provide protection in one direction only. This parameter must match exactly for substitution; bidirectional or multi-channel variants are not interchangeable.

Q: How do the peak pulse current ratings affect substitution?

A: The TPSMC13A is rated at 84.6A peak pulse current, while the 1.5SMC13A is rated at 86A. This 2.6A difference represents approximately 3% variance and falls within acceptable operational tolerance for TVS diode applications. Both parts maintain the same 1500W peak pulse power rating.