Equivalent & Substitute Parts Reference: P6SMB20AHE3_A/I (Vishay General Semiconductor - Diodes Division)

Part Overview

The P6SMB20AHE3_A/I is a Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. It features a unidirectional channel, a reverse standoff voltage of 17.1V, breakdown voltage of 19V minimum, and a maximum clamping voltage of 27.7V at a peak pulse current of 21.7A. The device is supplied in the DO-214AA (SMB) surface mount package and is rated up to 600W peak pulse power. It is automotive grade, AEC-Q101 qualified, and ROHS3 compliant. The part status is listed as Obsolete, making identification of direct substitutes crucial for ongoing and future design requirements.

Substiute Parts

P6SMB20AHE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1131P6SMB20AHE3_A/I Datasheet

Current PartRFQ

P6SMB20AHE3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 964P6SMB20AHE3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are identified based strictly on matching or equivalent electrical and mechanical parameters. Acceptable substitutes for P6SMB20AHE3_A/I are required to meet:

• Series and type requirements: P6SMB, TransZorb®, Zener, automotive grade
• Channel configuration: 1 unidirectional channel
• Voltage Ratings: Reverse standoff ≥17.1V, breakdown min ≥19V, clamping max ≤27.7V @ stated peak pulse current
• Peak Pulse Current: 21.7A (10/1000µs)
• Peak Pulse Power: 600W
• Package and Mounting: DO-214AA (SMB), surface mount
• Compliance: ROHS3, AEC-Q101, REACH unaffected
• Operating Temperature: -65°C ~ 150°C (TJ)
• Certifications and regulatory status (ECCN, HTSUS)

No parameters beyond those provided are considered.

Parameter Comparison

Engineering Selection Recommendations

The P6SMB20AHE3_A/I is currently listed as Obsolete, whereas its substitute P6SMB20AHE3_B/I is Active. Both devices meet identical electrical and mechanical parameters and share the same certifications (ROHS3, AEC-Q101, REACH unaffected, automotive grade). For continued manufacturing, service, or design-in, the active part P6SMB20AHE3_B/I fulfills all compliance and qualification specifications required for substitution.

Frequently Asked Questions (FAQ)

Q: What criteria are used to select substitutes for P6SMB20AHE3_A/I in the Transient Voltage Suppressors (TVS) category?
A: Substitution is based strictly on matching electrical characteristics such as voltage ratings, peak pulse current, peak pulse power, unidirectional channel count, package type, mounting method, grade, and qualification standards.

Q: Are there any differences in package compatibility between P6SMB20AHE3_A/I and P6SMB20AHE3_B/I?
A: Both are supplied in the DO-214AA (SMB) package and are surface mount devices, ensuring direct mechanical compatibility.

Q: Does switching to P6SMB20AHE3_B/I affect automotive qualification or compliance?
A: Both parts are automotive grade and AEC-Q101 qualified, and are ROHS3 compliant and REACH unaffected.

Q: Are performance parameters identical between the main and substitute part numbers?
A: Electrical and mechanical parameters, as specified, are identical based on the provided manufacturer documentation.

Q: What is the impact of the obsolete status of P6SMB20AHE3_A/I on design or procurement?
A: The obsolete status necessitates substitution with an active part such as P6SMB20AHE3_B/I for sustained availability and regulatory compliance.

Q: Can the substitute part be used interchangeably in existing designs?
A: Based on provided parameters for category, package, and electrical ratings, P6SMB20AHE3_B/I is suitable for direct substitution in existing applications requiring the same performance and certifications.