P4SMA7.5A TR13 Equivalent & Substitute Parts

Part Overview

The P4SMA7.5A TR13 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 7.5V reverse standoff voltage with a 12.9V maximum clamping voltage and 31A peak pulse current capability in a compact SMA (DO-214AC) package.

The P4SMA7.5A TR13 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 TR13

Central Semiconductor CorpIn Stock: 999P4SMA7.5A TR13 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 TR13 is determined by strict equivalence across the following electrical and mechanical parameters:

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

The SMAJ7.5A-13-F from Diodes Incorporated meets all specified electrical and mechanical parameters, making it a direct functional equivalent for the obsolete P4SMA7.5A TR13.

Parameter Comparison

Engineering Selection Recommendations

The SMAJ7.5A-13-F is the recommended substitute for the obsolete P4SMA7.5A TR13. This part maintains identical electrical performance across all critical parameters and shares the same physical package footprint (DO-214AC, SMA).

The SMAJ7.5A-13-F carries active product status with ROHS3 compliance and REACH unaffected designation, ensuring long-term availability and regulatory alignment. Inventory availability of 2200 units supports production requirements without supply constraints.

No design modifications, PCB layout changes, or circuit re-qualification are required when transitioning from the P4SMA7.5A TR13 to the SMAJ7.5A-13-F, as both components are pin-compatible and electrically equivalent.

Frequently Asked Questions (FAQ)

Q: Can the SMAJ7.5A-13-F be used as a direct replacement for the P4SMA7.5A TR13?

A: Yes. Both components are electrically and mechanically equivalent. They share identical voltage ratings (7.5V standoff, 12.9V clamping), current handling (31A peak pulse), power dissipation (400W), and package configuration (DO-214AC, SMA). No circuit modifications are necessary.

Q: Are there any differences in operating temperature range between these parts?

A: No. Both the P4SMA7.5A TR13 and SMAJ7.5A-13-F operate across the same temperature range of -55°C to 150°C (junction temperature).

Q: What is the significance of the package designation DO-214AC, SMA?

A: DO-214AC is the industry-standard package outline for surface-mount TVS diodes in the SMA form factor. Both parts use this identical package, ensuring compatibility with existing PCB layouts and assembly processes without requiring design changes.

Q: Why is the P4SMA7.5A TR13 listed as obsolete?

A: Obsolete status indicates that the manufacturer (Central Semiconductor Corp) has discontinued production. The SMAJ7.5A-13-F from Diodes Incorporated provides equivalent functionality with active product status and ongoing availability.

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

A: The SMAJ7.5A-13-F carries ROHS3 compliance and REACH unaffected designation. Both parts share the same ECCN (EAR99) and HTSUS (8541.10.0080) classifications, indicating equivalent regulatory treatment.