P6SMB22CAHM3_A/I Equivalent & Substitute Parts

Part Overview

The P6SMB22CAHM3_A/I is a bidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for telecom applications requiring transient overvoltage protection in surface mount configurations. The part operates with a 18.8V reverse standoff voltage and provides 30.6V maximum clamping voltage at peak pulse current of 19.6A, delivering 600W peak pulse power dissipation.

The P6SMB22CAHM3_A/I carries an Obsolete product status. Identifying equivalent substitute parts ensures design continuity and supply chain reliability for applications currently utilizing this component.

Substiute Parts

P6SMB22CAHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1084P6SMB22CAHM3_A/I Datasheet

Current PartRFQ

P6SMB22CAHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 777P6SMB22CAHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P6SMB22CAHM3_A/I is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff: 18.8V (Typ)
• Voltage - Breakdown: 20.9V (Min)
• Voltage - Clamping: 30.6V (Max) @ Ipp
• Current - Peak Pulse: 19.6A (10/1000µs)
• Power - Peak Pulse: 600W
• Operating Temperature Range: -65°C ~ 150°C (TJ)
• Package / Case: DO-214AA (SMB)
• Bidirectional Channels: 1
• Grade: Automotive
• Qualification: AEC-Q101

The P6SMB22CAHM3_B/I meets all these electrical and mechanical specifications, making it a direct functional equivalent. Both parts belong to the P6SMB TransZorb® series and maintain identical performance characteristics within the specified operating envelope.

Parameter Comparison

Engineering Selection Recommendations

The P6SMB22CAHM3_B/I is the direct substitute for the obsolete P6SMB22CAHM3_A/I. Both components are manufactured by Vishay and maintain identical electrical performance specifications. The primary distinction is product status: the P6SMB22CAHM3_A/I is obsolete, while the P6SMB22CAHM3_B/I carries Active status with current manufacturing availability.

Both parts satisfy automotive-grade requirements with AEC-Q101 qualification and maintain full compliance with ROHS3 and REACH regulations. The packaging format (DO-214AA SMB) and mounting type (Surface Mount) are identical, enabling direct board-level substitution without design modification.

Frequently Asked Questions (FAQ)

Q: Can the P6SMB22CAHM3_B/I be used as a direct replacement for the P6SMB22CAHM3_A/I?

A: Yes. Both parts are electrically and mechanically equivalent. All critical parameters—voltage ratings, current handling, power dissipation, operating temperature range, package type, and automotive qualifications—are identical. The P6SMB22CAHM3_B/I is the active production equivalent.

Q: What is the difference between the P6SMB22CAHM3_A/I and P6SMB22CAHM3_B/I?

A: The primary difference is product status. The P6SMB22CAHM3_A/I is obsolete, while the P6SMB22CAHM3_B/I is in active production. The packaging differs (bulk versus Tape & Reel), but electrical specifications and performance are identical.

Q: Are there any board-level design changes required when switching to the P6SMB22CAHM3_B/I?

A: No. Both parts use the DO-214AA (SMB) package and are surface mount components. Footprint, pinout, and electrical characteristics are identical, allowing direct substitution without PCB redesign.

Q: Do both parts meet automotive qualification standards?

A: Yes. Both the P6SMB22CAHM3_A/I and P6SMB22CAHM3_B/I carry Automotive grade classification and AEC-Q101 qualification, meeting automotive industry reliability and quality requirements.

Q: What compliance certifications apply to the P6SMB22CAHM3_B/I?

A: The P6SMB22CAHM3_B/I is ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8541.10.0080.