P6SMB160C Equivalent & Substitute Parts

Part Overview

The P6SMB160C is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose voltage clamping applications. This component features a 136V reverse standoff voltage with a maximum clamping voltage of 229.95V at peak pulse current. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

P6SMB160C

Littelfuse Inc.In Stock: 1055P6SMB160C Datasheet

Current PartRFQ

P6SMB160CA

Eaton - Electronics DivisionIn Stock: 2976P6SMB160CA Datasheet

DirectRFQ

P6SMB160CA

Eaton - Electronics DivisionIn Stock: 2976P6SMB160CA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P6SMB160C is determined by the following critical parameters:

• Reverse standoff voltage: 136V (Typ)
• Breakdown voltage minimum: 144V or higher
• Clamping voltage maximum: within acceptable operating range for the application
• Peak pulse current: 2.8A
• Peak pulse power: 600W
• Mounting type: Surface Mount
• Package type: DO-214AA / SMB compatible
• Operating temperature range: -55°C ~ 150°C

The P6SMB160CA qualifies as a direct substitute based on matching all critical electrical parameters and package specifications, despite differences in clamping voltage and manufacturer.

Parameter Comparison

Engineering Selection Recommendations

The P6SMB160CA (Eaton - Electronics Division) is the qualified substitute for the obsolete P6SMB160C. Selection of this substitute is supported by:

• Identical reverse standoff voltage (136V Typ) and peak pulse current rating (2.8A)
• Matching peak pulse power dissipation (600W)
• Compatible package and mounting specifications (DO-214AA / SMB, Surface Mount)
• Identical operating temperature range (-55°C ~ 150°C)
• Active product status ensuring ongoing availability and supply chain continuity
• RoHS compliance certification meeting regulatory requirements

The P6SMB160CA exhibits a lower maximum clamping voltage (219V versus 229.95V), which represents improved performance characteristics within the same electrical class and does not compromise circuit protection functionality.

Frequently Asked Questions (FAQ)

Q: Can the P6SMB160CA directly replace the P6SMB160C in existing designs?

A: Yes. Both components share identical reverse standoff voltage, peak pulse current, power dissipation, operating temperature range, and package specifications. The lower clamping voltage of the substitute represents equivalent or superior performance for transient suppression.

Q: What is the significance of the clamping voltage difference between these parts?

A: The P6SMB160CA exhibits a maximum clamping voltage of 219V compared to the P6SMB160C at 229.95V. Both values fall within the acceptable operating envelope for 136V standoff voltage TVS diodes. The lower clamping voltage of the substitute provides tighter voltage regulation during transient events.

Q: Are there packaging considerations when substituting these parts?

A: Both components utilize the DO-214AA / SMB package for surface mount applications. The P6SMB160CA is available in Tape & Reel (TR) packaging, which is standard for production environments. PCB footprints and reflow soldering parameters remain identical.

Q: What compliance certifications apply to the substitute part?

A: The P6SMB160CA meets RoHS compliance requirements. Both the original and substitute components are classified as RoHS compliant, satisfying regulatory requirements for electronic component procurement.

Q: Why is the original P6SMB160C classified as obsolete?

A: Obsolescence reflects the manufacturer's discontinuation of this specific part number. The P6SMB160CA from Eaton maintains active production status and provides equivalent electrical and mechanical functionality for all applications previously served by the Littelfuse component.