P6SMB22AHE3_A/I Equivalent & Substitute Parts

Part Overview

The P6SMB22AHE3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, designed for telecom applications. This component features a 18.8V reverse standoff voltage with 30.6V maximum clamping voltage and 19.6A peak pulse current capability in a surface mount DO-214AA (SMB) package. The part is classified as obsolete, making identification of active equivalent substitutes essential for ongoing design support and procurement.

Substiute Parts

P6SMB22AHE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1155P6SMB22AHE3_A/I Datasheet

Current PartRFQ

P6SMB22AHE3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1132P6SMB22AHE3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P6SMB22AHE3_A/I is determined by strict equivalence across the following critical parameters:

• Unidirectional channel configuration (1 channel required)
• Voltage ratings: Reverse standoff 18.8V, breakdown minimum 20.9V, clamping maximum 30.6V
• Peak pulse current: 19.6A at 10/1000µs pulse width
• Peak pulse power: 600W
• Package type: DO-214AA (SMB) surface mount
• Operating temperature range: -65°C to 150°C
• Automotive grade with AEC-Q101 qualification
• RoHS3 compliance

The substitute part P6SMB22AHE3_B/I maintains identical electrical and mechanical specifications while differing only in packaging format (Tape & Reel) and product status (Active vs. Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The P6SMB22AHE3_B/I is the direct manufacturer-recommended substitute for the obsolete P6SMB22AHE3_A/I. Both components are identical in electrical performance and mechanical specifications, with AEC-Q101 automotive qualification and ROHS3 compliance maintained across both variants.

The primary distinction is product status: P6SMB22AHE3_A/I is obsolete, while P6SMB22AHE3_B/I is active. For new designs and ongoing production, P6SMB22AHE3_B/I should be selected to ensure long-term supply chain continuity and manufacturer support.

The packaging format difference (bulk versus Tape & Reel) reflects standard distribution practices and does not affect component functionality or performance in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can P6SMB22AHE3_B/I be used as a direct replacement for P6SMB22AHE3_A/I?

A: Yes. Both parts are electrically and mechanically identical, with identical voltage ratings (18.8V standoff, 30.6V clamping), current ratings (19.6A peak pulse), power dissipation (600W), package type (DO-214AA SMB), and automotive qualifications (AEC-Q101). The substitute is manufacturer-recommended.

Q: What is the difference between the two part numbers?

A: The primary difference is product status and packaging format. P6SMB22AHE3_A/I is obsolete and supplied in bulk packaging, while P6SMB22AHE3_B/I is active and supplied in Tape & Reel format. Electrical and mechanical specifications are identical.

Q: Are there any compatibility concerns when switching from P6SMB22AHE3_A/I to P6SMB22AHE3_B/I?

A: No compatibility concerns exist. Both components use the same DO-214AA (SMB) surface mount package, identical pinout, and identical electrical characteristics. PCB layout and circuit design require no modification.

Q: Do both parts meet automotive standards?

A: Yes. Both P6SMB22AHE3_A/I and P6SMB22AHE3_B/I are automotive-grade components with AEC-Q101 qualification and ROHS3 compliance, suitable for telecom and automotive transient voltage suppression applications.

Q: Why is the original part marked as obsolete?

A: Product obsolescence reflects manufacturer lifecycle decisions. The active substitute P6SMB22AHE3_B/I provides identical functionality and performance, ensuring continued availability for designs requiring this voltage suppression specification.