P4SMA160C Equivalent & Substitute Parts

Part Overview

The P4SMA160C is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 136V reverse standoff voltage with a 229.95V maximum clamping voltage and 1.9A peak pulse current capability in a surface-mount DO-214AC (SMA) package. The part is currently classified as obsolete, making identification of equivalent and substitute components essential for ongoing design support and procurement continuity.

Substiute Parts

P4SMA160C

Littelfuse Inc.In Stock: 1009P4SMA160C Datasheet

Current PartRFQ

P4SMA160CA

Eaton - Electronics DivisionIn Stock: 26149P4SMA160CA Datasheet

DirectRFQ

P4SMA160CA

Eaton - Electronics DivisionIn Stock: 26149P4SMA160CA Datasheet

DirectRFQ

SMAJP4KE160CA-TP

Micro Commercial CoIn Stock: 1093SMAJP4KE160CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P4SMA160C is determined by strict alignment of the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 136V
• Voltage - Clamping (Max) @ Ipp: 219V to 229.95V range
• Current - Peak Pulse (10/1000µs): 1.9A
• Power - Peak Pulse: 400W
• Package / Case: DO-214AC or SMA variant
• Mounting Type: Surface Mount
• Type: Zener
• Bidirectional Channels: 1

Both identified substitute parts meet these core electrical specifications and package requirements, enabling direct functional replacement in circuit applications designed for the P4SMA160C.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are classified as active products with current manufacturing support, addressing the obsolescence status of the P4SMA160C. The P4SMA160CA from Eaton - Electronics Division maintains RoHS compliance and identical MSL rating, providing direct compatibility for applications requiring regulatory adherence. The SMAJP4KE160CA-TP from Micro Commercial Co extends the upper operating temperature limit to 175°C, offering enhanced thermal performance for high-temperature environments while maintaining all core electrical specifications.

Selection between substitute options should be based on procurement availability, application temperature requirements, and existing supply chain relationships. Both parts satisfy the electrical and mechanical requirements for functional replacement.

Frequently Asked Questions (FAQ)

Q: Can P4SMA160CA be used as a direct replacement for P4SMA160C?

A: Yes. The P4SMA160CA meets all critical electrical parameters: 136V reverse standoff voltage, 1.9A peak pulse current, 400W peak pulse power, and identical DO-214AC (SMA) surface-mount packaging. The clamping voltage of 219V falls within the acceptable range for this application class.

Q: What is the difference between the two substitute parts?

A: Both P4SMA160CA and SMAJP4KE160CA-TP share identical core electrical specifications. The primary differences are manufacturer (Eaton vs. Micro Commercial Co), operating temperature range (-55 to 150°C vs. -55 to 175°C), and packaging format (Tape & Reel vs. Bulk). The SMAJP4KE160CA-TP supports higher maximum junction temperatures.

Q: Are there package compatibility concerns?

A: No. All three parts use DO-214AC (SMA) surface-mount packaging with identical mechanical footprints, enabling direct PCB placement without layout modifications.

Q: Does the lower clamping voltage of the substitutes affect circuit performance?

A: The substitute parts specify 219V clamping voltage compared to the original 229.95V. Both values remain within the functional range for 136V standoff voltage TVS diodes and are suitable for general-purpose overvoltage protection applications.

Q: Which substitute should be selected for high-temperature applications?

A: The SMAJP4KE160CA-TP supports operation to 175°C junction temperature, compared to 150°C for both the original part and the P4SMA160CA. Selection depends on specific thermal requirements of the application.

Q: Are regulatory certifications equivalent?

A: The P4SMA160CA maintains RoHS compliance matching the original ROHS3 status. The SMAJP4KE160CA-TP is REACH Unaffected. Both are suitable for applications with standard regulatory requirements.