TPSMD10A Equivalent & Substitute Parts

Part Overview

The TPSMD10A is a unidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for surface mount applications in the DO-214AB package. This component provides transient overvoltage protection with a 10V reverse standoff voltage and 17V maximum clamping voltage. The part is actively produced and widely used in electronic circuits requiring surge and ESD protection. Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and access to alternative sourcing options when the primary component becomes unavailable or when design requirements necessitate functional equivalents.

Substiute Parts

TPSMD10A

Littelfuse Inc.In Stock: 1759TPSMD10A Datasheet

Current PartRFQ

SMDJ10A

Alpha & Omega Semiconductor Inc.In Stock: 10155SMDJ10A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TPSMD10A are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Matching Parameters:

• Unidirectional channel configuration: 1 channel
• Voltage - Reverse Standoff (Typ): 10V
• Voltage - Breakdown (Min): 11.1V
• Voltage - Clamping (Max) @ Ipp: 17V
• Current - Peak Pulse (10/1000µs): 176.5A
• Power - Peak Pulse: 3000W
• Package / Case: DO-214AB (SMC)
• Mounting Type: Surface Mount
• Type: Zener

The SMDJ10A from Alpha & Omega Semiconductor Inc. meets all critical electrical specifications and physical package requirements, establishing it as a direct functional equivalent for the TPSMD10A in surface mount TVS diode applications.

Parameter Comparison

Engineering Selection Recommendations

The SMDJ10A qualifies as a direct substitute for the TPSMD10A based on identical electrical performance specifications and physical package compatibility. Both components are active products with ROHS3 compliance and EAR99 ECCN classification.

Consideration for Temperature Range: The TPSMD10A operates from -65°C to 150°C, while the SMDJ10A operates from -55°C to 150°C. Applications requiring operation below -55°C must retain the TPSMD10A. For applications within the -55°C to 150°C range, the SMDJ10A provides equivalent functionality.

Automotive Grade Consideration: The TPSMD10A carries automotive grade designation with AEC-Q101 qualification. The SMDJ10A specifications do not indicate automotive grade or AEC-Q101 qualification in the provided data. Applications requiring automotive-grade components should verify SMDJ10A qualification status with the manufacturer before substitution.

Both components are surface mount devices in DO-214AB packaging, ensuring direct PCB footprint compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can SMDJ10A replace TPSMD10A in all applications?

A: The SMDJ10A provides electrical and mechanical equivalence for applications operating within -55°C to 150°C. Applications requiring operation below -55°C must use TPSMD10A. Automotive applications should verify AEC-Q101 qualification status of SMDJ10A with the manufacturer.

Q: Are the packages physically identical?

A: Yes. Both TPSMD10A and SMDJ10A use the DO-214AB (SMC) surface mount package. PCB footprints are identical, and no layout modifications are required for substitution.

Q: What are the critical electrical parameters for substitution?

A: Substitution eligibility is determined by matching: reverse standoff voltage (10V), breakdown voltage (11.1V minimum), clamping voltage (17V maximum), peak pulse current (176.5A), peak pulse power (3000W), and unidirectional channel configuration (1 channel).

Q: Do both parts meet environmental compliance requirements?

A: Both TPSMD10A and SMDJ10A are ROHS3 compliant and REACH unaffected. Both carry EAR99 ECCN classification and identical HTSUS codes (8541.10.0080).

Q: What is the difference in operating temperature ranges?

A: TPSMD10A operates from -65°C to 150°C junction temperature, while SMDJ10A operates from -55°C to 150°C. The TPSMD10A provides extended low-temperature operation for applications requiring temperatures below -55°C.