P4SMA7.5A BK Equivalent & Substitute Parts

Part Overview

The P4SMA7.5A BK is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Central Semiconductor Corp, designed for general-purpose overvoltage protection in surface-mount applications. This component features a 7.5V reverse standoff voltage with a 12.9V maximum clamping voltage and 31A peak pulse current capability in a DO-214AC (SMA) package.

The P4SMA7.5A BK is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

P4SMA7.5A BK

Central Semiconductor CorpIn Stock: 839P4SMA7.5A BK Datasheet

Current PartRFQ

SMAJ7.5A-13-F

Diodes IncorporatedIn Stock: 2285SMAJ7.5A-13-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P4SMA7.5A BK is determined by strict equivalence across the following electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 7.5V
• Voltage - Breakdown (Min): 8.33V
• Voltage - Clamping (Max) @ Ipp: 12.9V
• Current - Peak Pulse (10/1000µs): 31A
• Power - Peak Pulse: 400W
• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Unidirectional Channels: 1
• Type: Zener

The substitute part SMAJ7.5A-13-F from Diodes Incorporated meets all specified electrical and mechanical parameters, confirming direct functional equivalence for circuit-level replacement.

Parameter Comparison

Engineering Selection Recommendations

The SMAJ7.5A-13-F from Diodes Incorporated is a direct electrical and mechanical equivalent to the obsolete P4SMA7.5A BK. The substitute part is classified as Active product status, ensuring ongoing availability and supply chain support.

The SMAJ7.5A-13-F carries ROHS3 compliance and REACH Unaffected status, meeting current regulatory requirements for electronic component procurement. Both parts share identical electrical specifications and the same DO-214AC (SMA) surface-mount package, enabling direct PCB-level substitution without design modification.

Frequently Asked Questions (FAQ)

Q: Can SMAJ7.5A-13-F replace P4SMA7.5A BK in existing designs?

A: Yes. Both components are electrically and mechanically equivalent across all specified parameters: 7.5V reverse standoff voltage, 12.9V clamping voltage, 31A peak pulse current, 400W peak pulse power, and identical DO-214AC (SMA) surface-mount packaging. No circuit redesign is required.

Q: What is the primary reason for substitution?

A: The P4SMA7.5A BK is obsolete. The SMAJ7.5A-13-F is an active product from Diodes Incorporated, providing assured long-term availability and supply chain continuity.

Q: Are there packaging differences between these parts?

A: The main part packaging is not specified in available data. The substitute part is supplied in Tape & Reel (TR) format, which is standard for high-volume surface-mount assembly. Both use the same DO-214AC (SMA) component package.

Q: Do compliance certifications differ?

A: The SMAJ7.5A-13-F includes ROHS3 compliance and REACH Unaffected status. These certifications align with current regulatory standards for electronic components in industrial and commercial applications.

Q: Are the operating temperature ranges identical?

A: Yes. Both parts operate across -55°C to 150°C junction temperature, supporting the same thermal operating envelope.