PSMAJ400CA-13 Equivalent & Substitute Parts

Part Overview

The PSMAJ400CA-13 is a Transient Voltage Suppressor (TVS) diode manufactured by Diodes Incorporated, designed for general-purpose overvoltage protection in surface-mount applications. This bidirectional Zener diode operates with a 342V reverse standoff voltage and 548V clamping voltage, providing 400W peak pulse power dissipation in a compact SMA package. The part is Active status and RoHS3 compliant. Substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity while maintaining equivalent electrical and mechanical performance.

Substiute Parts

PSMAJ400CA-13

Diodes IncorporatedIn Stock: 74267PSMAJ400CA-13 Datasheet

Current PartRFQ

P4SMA400CA

Eaton - Electronics DivisionIn Stock: 10153P4SMA400CA Datasheet

DirectRFQ

P4SMA400CA

Eaton - Electronics DivisionIn Stock: 10153P4SMA400CA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PSMAJ400CA-13 are qualified based on the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 342V
• Voltage - Breakdown (Min): 380V
• Voltage - Clamping (Max) @ Ipp: 548V
• Power - Peak Pulse: 400W
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount
• Bidirectional Channels: 1
• Type: Zener

The P4SMA400CA from Eaton - Electronics Division meets all critical electrical specifications and maintains identical package, mounting, and thermal characteristics. Current - Peak Pulse (10/1000µs) is 800mA for the substitute, which exceeds the 730mA requirement of the main part, providing additional margin without compromising circuit compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the PSMAJ400CA-13 and P4SMA400CA are Active status products with full regulatory compliance. The PSMAJ400CA-13 carries RoHS3 certification, while the P4SMA400CA carries RoHS compliance. Both parts are REACH Unaffected and classified under ECCN EAR99. Selection between these parts should be based on availability, lead time, and procurement requirements, as electrical performance and thermal operating range are equivalent. The P4SMA400CA's higher peak pulse current (800mA vs. 730mA) provides additional design margin without introducing compatibility concerns.

Frequently Asked Questions (FAQ)

Q: Can P4SMA400CA be used as a direct replacement for PSMAJ400CA-13?

A: Yes. Both parts share identical voltage specifications (342V standoff, 380V breakdown, 548V clamping), power rating (400W), operating temperature range (-55°C to 150°C), and SMA package configuration. The P4SMA400CA's higher peak pulse current (800mA) exceeds the PSMAJ400CA-13 requirement (730mA), maintaining full compatibility.

Q: Are there package differences between these parts?

A: No. Both parts use the DO-214AC, SMA package with surface-mount configuration, ensuring identical PCB footprint and assembly compatibility.

Q: What is the difference in RoHS compliance between the two parts?

A: The PSMAJ400CA-13 is RoHS3 compliant, while the P4SMA400CA is RoHS compliant. Both meet environmental and hazardous substance restrictions applicable to their respective certifications.

Q: Which part should be selected for new designs?

A: Selection should be based on supply availability and procurement lead times. Both parts are Active status and suitable for new designs. Verify current inventory and supplier availability for your specific application timeline.

Q: Are thermal characteristics identical?

A: Yes. Both parts operate across the same temperature range of -55°C to 150°C (junction temperature), ensuring equivalent thermal performance in circuit applications.