TPSMA10HE3_A/I Equivalent & Substitute Parts

Part Overview

The TPSMA10HE3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, designed for surface mount applications in the DO-214AC (SMA) package. This component provides transient overvoltage protection with a reverse standoff voltage of 8.1V and peak pulse current handling of 26.7A. The part is classified as Obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and field replacement requirements.

Substiute Parts

TPSMA10HE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1115TPSMA10HE3_A/I Datasheet

Current PartRFQ

TPSMA10AHE3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1094TPSMA10AHE3_B/I Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPSMA10HE3_A/I is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Substitution Parameters:

• Reverse Standoff Voltage (Typ): 8.1V nominal range
• Breakdown Voltage (Min): 9V minimum threshold
• Clamping Voltage (Max) @ Ipp: 15V maximum specification
• Peak Pulse Current (10/1000µs): 26.7A minimum capability
• Peak Pulse Power: 400W minimum rating
• Package / Case: DO-214AC (SMA) form factor
• Mounting Type: Surface Mount
• Operating Temperature Range: -65°C to 185°C (TJ)
• Automotive Grade and AEC-Q101 Qualification

The TPSMA10AHE3_B/I meets these substitution criteria with compatible electrical performance and identical mechanical packaging, enabling direct replacement in circuit designs originally specified for the TPSMA10HE3_A/I.

Parameter Comparison

Engineering Selection Recommendations

The TPSMA10AHE3_B/I is the qualified substitute for the obsolete TPSMA10HE3_A/I. Both components share identical automotive-grade classification and AEC-Q101 qualification, ensuring compliance with automotive reliability standards. The substitute part maintains equivalent peak pulse power rating (400W) and operating temperature range (-65°C to 185°C TJ), with marginally improved electrical performance in reverse standoff voltage (8.65V vs. 8.1V), breakdown voltage (9.5V vs. 9V), and peak pulse current (27.6A vs. 26.7A). The clamping voltage of the substitute (14.5V) is lower than the original (15V), providing enhanced transient suppression. Both parts are ROHS3 compliant and carry unlimited moisture sensitivity level (MSL 1). The TPSMA10AHE3_B/I is currently in active production status with confirmed inventory availability, making it the appropriate selection for new designs and field replacement applications.

Frequently Asked Questions (FAQ)

Q: Can the TPSMA10AHE3_B/I directly replace the TPSMA10HE3_A/I in existing circuit designs?

A: Yes. Both components are unidirectional TVS diodes in the DO-214AC (SMA) package with equivalent mechanical mounting and compatible electrical performance across all critical parameters. The substitute part meets or exceeds the original specifications for reverse standoff voltage, breakdown voltage, peak pulse current, and power dissipation.

Q: What is the difference in clamping voltage between these parts?

A: The TPSMA10HE3_A/I specifies a maximum clamping voltage of 15V at peak pulse current, while the TPSMA10AHE3_B/I specifies 14.5V. The lower clamping voltage of the substitute provides improved transient suppression performance and remains within acceptable design margins for applications originally specified for the 15V clamp level.

Q: Are both parts qualified for automotive applications?

A: Yes. Both the TPSMA10HE3_A/I and TPSMA10AHE3_B/I carry Automotive Grade classification and AEC-Q101 qualification, meeting automotive reliability and quality standards.

Q: What is the packaging difference between these parts?

A: The TPSMA10HE3_A/I is supplied in standard packaging, while the TPSMA10AHE3_B/I is supplied in Tape & Reel (TR) format. Both use the identical DO-214AC (SMA) component package for surface mount assembly. Tape & Reel packaging is standard for high-volume production and does not affect component performance or compatibility.

Q: Why is the TPSMA10HE3_A/I classified as Obsolete?

A: The TPSMA10HE3_A/I has reached end-of-life status with Vishay General Semiconductor - Diodes Division. The TPSMA10AHE3_B/I is the active production equivalent, ensuring continued availability and supply chain continuity for applications requiring this TVS diode specification.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical environmental and regulatory classifications. Both maintain unlimited moisture sensitivity level (MSL 1) for storage and handling.