5KP14A-B Equivalent & Substitute Parts

Part Overview

The 5KP14A-B is a unidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This through-hole component features a 14V reverse standoff voltage and 5000W peak pulse power rating, making it suitable for protecting sensitive electronic circuits from transient voltage events. The part is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity level rating.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the same voltage class, clamping characteristics, and package specifications.

Substiute Parts

5KP14A-B

Littelfuse Inc.In Stock: 8285KP14A-B Datasheet

Current PartRFQ

5KP14A

Littelfuse Inc.In Stock: 41375KP14A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5KP14A-B is determined by strict equivalence across the following critical parameters:

• Voltage class: 14V reverse standoff voltage with 15.6V minimum breakdown voltage
• Clamping performance: 23.2V maximum clamping voltage at peak pulse current
• Peak pulse current rating: 219.8A (10/1000µs waveform)
• Power dissipation: 5000W peak pulse power
• Package specification: P600 axial through-hole configuration
• Unidirectional topology: Single channel zener TVS diode
• Electrical characteristics: Identical across all voltage and current parameters

The 5KP14A qualifies as a direct substitute based on matching all electrical specifications and maintaining the same P600 axial package. The only difference is packaging format (Cut Tape versus Bulk), which does not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the 5KP14A-B and 5KP14A are active production components from Littelfuse Inc. with full ROHS3 compliance and identical electrical specifications. Selection between these parts should be based on packaging requirements and supply chain considerations rather than electrical performance.

The 5KP14A-B in bulk packaging is suitable for high-volume manufacturing environments with integrated component handling systems. The 5KP14A in cut tape packaging is appropriate for automated pick-and-place assembly processes and lower-volume production runs.

Both parts maintain the same P600 axial through-hole package footprint and are electrically interchangeable in all circuit applications requiring 14V TVS protection with 5kW peak pulse power dissipation.

Frequently Asked Questions (FAQ)

Q: Can 5KP14A replace 5KP14A-B in production assemblies?

A: Yes. Both parts are electrically identical with matching voltage ratings (14V standoff, 23.2V clamp), peak pulse current (219.8A), and power dissipation (5000W). The only difference is packaging format (Cut Tape versus Bulk), which does not affect circuit performance or mechanical compatibility.

Q: Are there any thermal or operating condition differences between these parts?

A: No. Both parts share identical operating temperature ranges (-55°C to 175°C junction temperature) and thermal characteristics. They are fully interchangeable from a thermal management perspective.

Q: Does the packaging format affect PCB assembly compatibility?

A: No. Both parts use the same P600 axial through-hole package configuration. Packaging format (Bulk versus Cut Tape) only affects component handling and supply chain logistics, not board-level compatibility or soldering requirements.

Q: Are both parts compliant with current regulatory requirements?

A: Yes. Both 5KP14A-B and 5KP14A are ROHS3 compliant with REACH unaffected status. Both carry unlimited moisture sensitivity level (MSL 1) ratings.

Q: What is the basis for substitution between these two part numbers?

A: Substitution is based on complete electrical equivalence across all specified parameters: identical voltage class, clamping characteristics, peak pulse ratings, and thermal specifications. Both parts are manufactured by Littelfuse Inc. using the same base product platform (5KP1 series) with identical P600 package specifications.