TPSMA13HE3_A/I Equivalent & Substitute Parts

Part Overview

The TPSMA13HE3_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 voltage protection with a 10.5V reverse standoff voltage and 19V maximum clamping voltage at peak pulse current. The part is classified as obsolete, necessitating identification of active equivalent components to maintain design continuity and ensure supply chain availability for new production and field replacements.

Substiute Parts

TPSMA13HE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 902TPSMA13HE3_A/I Datasheet

Current PartRFQ

TPSMA13AHE3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1144TPSMA13AHE3_B/I Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPSMA13HE3_A/I is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Unidirectional channel configuration (1 channel required)
• Reverse standoff voltage within acceptable tolerance range (10.5V nominal)
• Clamping voltage performance at peak pulse current (19V maximum)
• Peak pulse current capability (21.1A minimum)
• Power dissipation rating (400W minimum)
• Operating temperature range (-65°C to 185°C minimum)

Mechanical & Compliance Criteria:

• Package type: DO-214AC (SMA) surface mount only
• Automotive grade qualification (AEC-Q101 required)
• RoHS3 compliance
• Base product series: PAR® series

The substitute part TPSMA13AHE3_B/I meets all substitution criteria while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The TPSMA13AHE3_B/I is the direct substitute for the obsolete TPSMA13HE3_A/I. Both components share identical mechanical packaging (DO-214AC, SMA), automotive qualification (AEC-Q101), and compliance certifications (ROHS3). The substitute maintains equivalent power dissipation (400W) and operating temperature range (-65°C to 185°C).

The TPSMA13AHE3_B/I offers a slight increase in peak pulse current capability (22A versus 21.1A) and maintains comparable clamping voltage performance (18.2V versus 19V). The reverse standoff voltage is marginally higher (11.1V versus 10.5V), which remains within acceptable tolerance for PAR® series TVS diodes. The substitute part carries active product status, ensuring long-term supply chain availability and manufacturing support.

Selection of TPSMA13AHE3_B/I is appropriate for direct replacement in existing designs without circuit modification, provided the application tolerates the specified voltage and current parameter variations.

Frequently Asked Questions (FAQ)

Q: Can TPSMA13AHE3_B/I be used as a direct drop-in replacement for TPSMA13HE3_A/I?

A: Yes. Both components share identical DO-214AC (SMA) packaging, automotive-grade qualification (AEC-Q101), and equivalent electrical performance within the PAR® series specifications. No PCB layout or circuit modifications are required.

Q: What are the key electrical differences between these parts?

A: The substitute TPSMA13AHE3_B/I has a slightly higher reverse standoff voltage (11.1V versus 10.5V) and lower maximum clamping voltage (18.2V versus 19V). Peak pulse current is marginally higher (22A versus 21.1A). These variations remain within acceptable operating parameters for TVS diode substitution in automotive applications.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the TPSMA13HE3_A/I and TPSMA13AHE3_B/I carry automotive-grade classification and AEC-Q101 qualification, meeting automotive industry reliability and qualification standards.

Q: What is the packaging difference between these parts?

A: The main part is supplied in standard packaging, while the substitute is available in Tape & Reel (TR) format. Both use identical DO-214AC (SMA) component packaging. Tape & Reel format is standard for high-volume surface mount assembly.

Q: Why is the original part obsolete?

A: The TPSMA13HE3_A/I is classified as obsolete by the manufacturer. The TPSMA13AHE3_B/I represents the active equivalent within the PAR® series, ensuring continued availability and manufacturing support for new designs and field replacements.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain identical compliance status: ROHS3 compliant, Moisture Sensitivity Level 1 (Unlimited), and AEC-Q101 automotive qualification. Regulatory and environmental requirements are equivalent.