P4KE110C-B Equivalent & Substitute Parts

Part Overview

The P4KE110C-B is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 94V reverse standoff voltage rating with 159.6V maximum clamping voltage and 2.7A peak pulse current capability in a through-hole DO-204AL (DO-41) axial package. The part is currently classified as obsolete, making identification of active equivalent alternatives essential for ongoing design support and procurement continuity.

Substiute Parts

P4KE110C-B

Littelfuse Inc.In Stock: 1020P4KE110C-B Datasheet

Current PartRFQ

P4KE110CA

Taiwan Semiconductor CorporationIn Stock: 1026P4KE110CA Datasheet

DirectRFQ

P4KE110CA-B

Littelfuse Inc.In Stock: 924P4KE110CA-B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P4KE110C-B is determined by the following critical parameters:

• Reverse standoff voltage: 94V (fixed requirement)
• Peak pulse current: 2.7A (fixed requirement)
• Package type: DO-204AL / DO-41 axial through-hole (fixed requirement)
• Zener diode type with single bidirectional channel (fixed requirement)
• Operating temperature range: -55°C to 175°C (fixed requirement)
• RoHS3 compliance and MSL Level 1 (fixed requirement)

The identified substitute parts P4KE110CA and P4KE110CA-B meet all critical electrical and mechanical parameters. Both maintain the same reverse standoff voltage, peak pulse current rating, package configuration, and temperature operating range. The primary distinction between substitutes is clamping voltage specification and product status, with both alternatives currently in active production status.

Parameter Comparison

Engineering Selection Recommendations

Both P4KE110CA and P4KE110CA-B are qualified substitutes for the obsolete P4KE110C-B. Selection between alternatives should be based on the following factors:

P4KE110CA (Taiwan Semiconductor Corporation): Active product status with Tape & Reel packaging format. ROHS3 compliant and REACH unaffected. Suitable for high-volume automated assembly processes.

P4KE110CA-B (Littelfuse Inc.): Active product status with bulk packaging format. ROHS3 compliant and REACH unaffected. Maintains original manufacturer continuity while providing active product support. Suitable for manual assembly or lower-volume applications.

Both substitutes maintain identical electrical performance across all critical parameters: 94V reverse standoff voltage, 2.7A peak pulse current, 400W peak pulse power, and -55°C to 175°C operating temperature range. The clamping voltage differential (152V versus 159.6V) represents a 4.8% reduction and must be evaluated within specific circuit protection requirements.

Frequently Asked Questions (FAQ)

Q: Can P4KE110CA or P4KE110CA-B be used as direct replacements for P4KE110C-B?

A: Yes. Both substitute parts maintain identical reverse standoff voltage (94V), peak pulse current (2.7A), power rating (400W), operating temperature range (-55°C to 175°C), and DO-204AL axial through-hole package configuration. All three parts are single-channel zener TVS diodes with RoHS3 compliance and MSL Level 1 rating.

Q: What is the difference between P4KE110CA and P4KE110CA-B?

A: The primary differences are manufacturer and packaging format. P4KE110CA is supplied by Taiwan Semiconductor Corporation in Tape & Reel format, while P4KE110CA-B is supplied by Littelfuse Inc. in bulk packaging. Both maintain identical electrical specifications and active product status.

Q: Does the clamping voltage difference (152V vs 159.6V) affect compatibility?

A: The clamping voltage specification is determined by the electrical design requirements of the protection circuit. A 4.8% reduction in maximum clamping voltage must be evaluated against the specific overvoltage protection threshold of the protected circuit. Both values fall within the P4KE series voltage class specifications.

Q: Are both substitutes currently in production?

A: Yes. Both P4KE110CA and P4KE110CA-B are classified as active products with current inventory availability. The original P4KE110C-B is obsolete and no longer manufactured.

Q: What packaging considerations apply to these substitutes?

A: P4KE110CA is supplied in Tape & Reel format, optimized for automated pick-and-place assembly. P4KE110CA-B is supplied in bulk packaging, suitable for manual assembly or lower-volume applications. Both use identical DO-204AL (DO-41) axial through-hole component geometry.