P4SMA6.5A BK Equivalent & Substitute Parts

Part Overview

The P4SMA6.5A BK is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Central Semiconductor Corp, designed for general-purpose transient voltage protection in surface-mount applications. This component features a 6.5V reverse standoff voltage with an 11.2V maximum clamping voltage and 35.7A peak pulse current capability in a DO-214AC (SMA) package.

The P4SMA6.5A BK is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for applications utilizing this TVS diode specification.

Substiute Parts

P4SMA6.5A BK

Central Semiconductor CorpIn Stock: 945P4SMA6.5A BK Datasheet

Current PartRFQ

SMAJ6.5A-13-F

Diodes IncorporatedIn Stock: 30912SMAJ6.5A-13-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P4SMA6.5A BK is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 6.5V
• Voltage - Breakdown (Min): 7.22V
• Voltage - Clamping (Max) @ Ipp: 11.2V
• Current - Peak Pulse (10/1000µs): 35.7A
• Power - Peak Pulse: 400W
• Type: Zener (unidirectional)
• Unidirectional Channels: 1
• Package / Case: DO-214AC, SMA
• Operating Temperature Range: -55°C ~ 150°C (TJ)

The SMAJ6.5A-13-F from Diodes Incorporated meets all specified electrical and mechanical parameters, making it a direct functional equivalent for the obsolete P4SMA6.5A BK.

Parameter Comparison

Engineering Selection Recommendations

The SMAJ6.5A-13-F is the direct substitute for the P4SMA6.5A BK. This substitution is supported by:

• Complete electrical parameter equivalence across all voltage, current, and power specifications
• Identical package and mounting configuration (DO-214AC, SMA surface mount)
• Matching operating temperature range (-55°C ~ 150°C)
• Active product status of the substitute, ensuring ongoing availability and supply chain support
• ROHS3 compliance and REACH unaffected status of the substitute part
• Equivalent moisture sensitivity classification (MSL 1)

The transition from the obsolete P4SMA6.5A BK to the SMAJ6.5A-13-F requires no circuit redesign or layout modification, as both components are pin-compatible and functionally identical.

Frequently Asked Questions (FAQ)

Q: Can the SMAJ6.5A-13-F be used as a direct replacement for the P4SMA6.5A BK without circuit modifications?

A: Yes. The SMAJ6.5A-13-F is electrically and mechanically equivalent to the P4SMA6.5A BK. Both components share identical voltage ratings, current ratings, power dissipation, package type, and operating temperature range. No circuit or PCB layout changes are required.

Q: What is the primary reason for substituting the P4SMA6.5A BK?

A: The P4SMA6.5A BK is classified as obsolete. The SMAJ6.5A-13-F is an active product with established supply chain availability, making it the appropriate choice for new designs and ongoing production support.

Q: Are there any packaging differences between these parts?

A: Both the P4SMA6.5A BK and SMAJ6.5A-13-F use the DO-214AC (SMA) surface-mount package. The SMAJ6.5A-13-F is supplied in Tape & Reel (TR) packaging format, which is standard for high-volume production environments.

Q: Do both parts meet the same compliance standards?

A: Both components have MSL 1 (Unlimited) moisture sensitivity classification. The SMAJ6.5A-13-F carries ROHS3 compliance and REACH unaffected status. Compliance documentation should be verified against specific application requirements.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution is based on matching: reverse standoff voltage (6.5V), breakdown voltage (7.22V minimum), clamping voltage (11.2V maximum), peak pulse current (35.7A), and peak pulse power (400W). All parameters must align exactly for functional equivalence in transient voltage suppression applications.