SMBJ24AHE3_A/I Equivalent & Substitute Parts

Part Overview

The SMBJ24AHE3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates at a 24V reverse standoff voltage with a 38.9V maximum clamping voltage and 15.4A peak pulse current rating. The device is housed in a DO-214AA (SMB) package and is qualified to AEC-Q101 automotive standards.

The SMBJ24AHE3_A/I carries an obsolete product status. Identifying equivalent and substitute parts ensures design continuity and supply chain reliability for applications requiring this specific electrical and mechanical configuration.

Substiute Parts

SMBJ24AHE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1211SMBJ24AHE3_A/I Datasheet

Current PartRFQ

SMBJ24AHE3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 937SMBJ24AHE3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBJ24AHE3_A/I is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff: 24V (±tolerance)
• Voltage - Clamping (Max) @ Ipp: 38.9V
• Current - Peak Pulse (10/1000µs): 15.4A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA (SMB)
• Unidirectional configuration: 1 channel
• Type: Zener TVS diode
• Operating Temperature Range: -55°C to 150°C (TJ)
• Automotive Grade: AEC-Q101 qualified

The SMBJ24AHE3_B/I meets all these criteria and is classified as a manufacturer-recommended substitute. Both parts share the same base product number (SMBJ24) and electrical specifications. The primary difference is product status: SMBJ24AHE3_A/I is obsolete, while SMBJ24AHE3_B/I is active.

Parameter Comparison

Engineering Selection Recommendations

The SMBJ24AHE3_B/I is the direct substitute for the obsolete SMBJ24AHE3_A/I. Both components are manufactured by Vishay General Semiconductor - Diodes Division and carry identical electrical and mechanical specifications. The SMBJ24AHE3_B/I maintains active product status and full AEC-Q101 automotive qualification, ensuring continued design support and supply availability.

Selection of SMBJ24AHE3_B/I is appropriate for new designs and production transitions from the obsolete SMBJ24AHE3_A/I. The packaging difference (bulk versus Tape & Reel) does not affect electrical performance and reflects standard manufacturing practices for active versus obsolete product lines.

Frequently Asked Questions (FAQ)

Q: Can SMBJ24AHE3_B/I be used as a direct replacement for SMBJ24AHE3_A/I?

A: Yes. Both parts are electrically and mechanically identical. The SMBJ24AHE3_B/I is the manufacturer-recommended substitute for the obsolete SMBJ24AHE3_A/I.

Q: What is the difference between SMBJ24AHE3_A/I and SMBJ24AHE3_B/I?

A: The primary difference is product status. SMBJ24AHE3_A/I is obsolete, while SMBJ24AHE3_B/I is active. Packaging format differs (bulk versus Tape & Reel), but electrical specifications are identical.

Q: Are both parts AEC-Q101 qualified?

A: Yes. Both SMBJ24AHE3_A/I and SMBJ24AHE3_B/I carry AEC-Q101 automotive qualification and are suitable for automotive applications.

Q: Does the DO-214AA (SMB) package remain the same for both parts?

A: Yes. Both parts use the DO-214AA (SMB) surface mount package. PCB footprints and assembly processes are identical.

Q: What are the critical electrical parameters for substitution?

A: Substitution requires matching: 24V reverse standoff voltage, 38.9V maximum clamping voltage, 15.4A peak pulse current, 600W peak pulse power, and -55°C to 150°C operating temperature range.