SMBJ36CAHE3_A/I Equivalent & Substitute Parts

Part Overview

The SMBJ36CAHE3_A/I is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, designed for surface mount applications in the DO-214AA (SMB) package. This component provides transient overvoltage protection with a 36V reverse standoff voltage and 58.1V maximum clamping voltage at peak pulse current of 10.3A. The part is classified as obsolete, making identification of active equivalent alternatives essential for ongoing design support and procurement continuity.

Substiute Parts

SMBJ36CAHE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 6239SMBJ36CAHE3_A/I Datasheet

Current PartRFQ

SMBJ36CAHE3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1190SMBJ36CAHE3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBJ36CAHE3_A/I is determined by strict equivalence across the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff: 36V (±tolerance)
• Voltage - Breakdown (Min): 40V
• Voltage - Clamping (Max) @ Ipp: 58.1V
• Current - Peak Pulse (10/1000µs): 10.3A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA, SMB (surface mount)
• Bidirectional Channels: 1
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Grade: Automotive
• Qualification: AEC-Q101

The SMBJ36CAHE3_B/I is identified as the manufacturer-recommended substitute. This part maintains identical electrical specifications and package configuration while offering active product status, ensuring long-term availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

The SMBJ36CAHE3_B/I is the direct equivalent for the obsolete SMBJ36CAHE3_A/I. Both parts are manufactured by Vishay and maintain identical electrical performance specifications, package configuration, and automotive-grade qualification (AEC-Q101). The primary distinction is product status: the substitute part is active and maintains current manufacturing support, ensuring procurement availability and supply chain reliability.

For applications requiring the SMBJ36CAHE3_A/I, transition to SMBJ36CAHE3_B/I without circuit modification. Both parts satisfy identical design requirements for 36V TVS protection in automotive and industrial applications.

Frequently Asked Questions (FAQ)

Q: Can SMBJ36CAHE3_B/I be used as a direct replacement for SMBJ36CAHE3_A/I?

A: Yes. Both parts are electrically and mechanically identical. The substitute part is the manufacturer-recommended replacement and requires no circuit design changes.

Q: What is the difference between the _A/I and _B/I variants?

A: The variants differ only in product status. The _A/I is obsolete; the _B/I is active. Electrical specifications, package, and performance are identical.

Q: Are both parts qualified to AEC-Q101?

A: Yes. Both SMBJ36CAHE3_A/I and SMBJ36CAHE3_B/I carry AEC-Q101 automotive qualification and are ROHS3 compliant.

Q: Can this TVS diode be used in non-automotive applications?

A: Yes. While qualified to automotive standards, the part is suitable for any application requiring 36V bidirectional transient voltage suppression in the DO-214AA package.

Q: What is the significance of the DO-214AA (SMB) package?

A: DO-214AA is a surface mount package standard for small signal diodes and TVS devices. It ensures compatibility with standard PCB assembly processes and footprints. No package alternatives are specified for this part.