P6SMB15CAHM3_A/I Equivalent & Substitute Parts

Part Overview

The P6SMB15CAHM3_A/I is a bidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the DO-214AA (SMB) package and is designed for telecom applications requiring transient voltage protection. The part is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement.

Substiute Parts

P6SMB15CAHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 919P6SMB15CAHM3_A/I Datasheet

Current PartRFQ

P6SMB15CAHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1189P6SMB15CAHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P6SMB15CAHM3_A/I is determined by strict equivalence across the following critical parameters:

• Voltage ratings (Reverse Standoff, Breakdown, and Clamping) must remain identical
• Peak pulse current and power dissipation capacity must match or exceed the original specification
• Package type must be DO-214AA (SMB) to ensure mechanical and thermal compatibility
• Bidirectional channel configuration must be maintained at 1 channel
• Operating temperature range must support the full -65°C to 150°C specification
• Automotive grade qualification (AEC-Q101) and RoHS3 compliance must be preserved

The P6SMB15CAHM3_B/I is identified as the manufacturer-recommended substitute, sharing identical electrical and mechanical specifications while offering active product status.

Parameter Comparison

Engineering Selection Recommendations

The P6SMB15CAHM3_B/I is the direct equivalent for the obsolete P6SMB15CAHM3_A/I. Both parts maintain identical electrical performance across all voltage, current, and power specifications. The substitute part carries active product status, ensuring continued availability and manufacturing support. Both components satisfy automotive-grade requirements with AEC-Q101 qualification and ROHS3 compliance, making them suitable for regulated applications. The difference in packaging designation (Tape & Reel for the substitute versus unspecified for the original) does not affect electrical or mechanical compatibility in the DO-214AA (SMB) form factor.

Frequently Asked Questions (FAQ)

Q: Can the P6SMB15CAHM3_B/I be used as a direct replacement for the P6SMB15CAHM3_A/I?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including voltage ratings, current capacity, power dissipation, operating temperature range, and package type. The substitute is the manufacturer-recommended equivalent.

Q: What is the significance of the packaging difference between these parts?

A: The P6SMB15CAHM3_A/I does not specify packaging format, while the P6SMB15CAHM3_B/I is supplied in Tape & Reel (TR) format. This difference affects only the delivery and handling method, not the component's electrical or mechanical performance in the DO-214AA (SMB) package.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts carry identical automotive-grade classification, AEC-Q101 qualification, and ROHS3 compliance status. They are suitable for the same regulated applications.

Q: Why is the original part marked as obsolete?

A: Product obsolescence typically reflects manufacturing discontinuation by the supplier. The P6SMB15CAHM3_B/I remains in active production, providing continuity for designs requiring this TVS diode specification.

Q: What parameters must remain constant when selecting a substitute TVS diode?

A: Critical parameters include Reverse Standoff Voltage (12.8V), Breakdown Voltage (14.3V minimum), Clamping Voltage (21.2V maximum), Peak Pulse Current (28.3A), Peak Pulse Power (600W), operating temperature range (-65°C to 150°C), and package type (DO-214AA SMB). Deviations in any of these specifications result in incompatibility.