5KP75A-B Transient Voltage Suppressor Equivalent & Substitute Parts

Part Overview

The 5KP75A-B is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This through-hole component operates across a wide temperature range and provides peak pulse power dissipation of 5000W. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory availability, packaging format preferences, or supply chain considerations.

Substiute Parts

5KP75A-B

Littelfuse Inc.In Stock: 7955KP75A-B Datasheet

Current PartRFQ

5KP75A

Littelfuse Inc.In Stock: 42025KP75A Datasheet

MFR RecommendedRFQ

5KP75A-TP

Micro Commercial CoIn Stock: 11565KP75A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5KP75A-B is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 75V
• Voltage - Breakdown (Min): 83.3V
• Voltage - Clamping (Max) @ Ipp: 121V
• Power - Peak Pulse: 5000W
• Operating Temperature Range: -55°C to 175°C
• Type: Zener, Unidirectional
• Mounting Type: Through Hole
• RoHS Status: ROHS3 Compliant

The identified substitute parts maintain electrical equivalence across all voltage and power ratings. Packaging format differences (Bulk, Cut Tape) and package case variations (P600 vs. R-6) represent the primary distinctions among qualified substitutes. All substitute parts are active products with identical compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active product status and full ROHS3 compliance with REACH unaffected designation. Selection between 5KP75A-B, 5KP75A, and 5KP75A-TP should be based on packaging requirements and mechanical fit considerations:

The 5KP75A (Littelfuse Inc.) represents the manufacturer-recommended substitute, maintaining identical electrical specifications and P600 package geometry while offering Cut Tape packaging format.

The 5KP75A-TP (Micro Commercial Co) provides electrical equivalence with R-6 package geometry. This variant requires mechanical compatibility verification due to package case differences, though electrical performance remains equivalent across all specified voltage and power parameters.

Packaging format selection (Bulk vs. Cut Tape) depends on assembly process requirements and inventory management practices. All parts carry unlimited moisture sensitivity rating, eliminating MSL-related constraints for storage and handling.

Frequently Asked Questions (FAQ)

Q: Can 5KP75A-B be directly replaced with 5KP75A?

A: Yes. Both parts are manufactured by Littelfuse Inc. with identical electrical specifications (75V standoff, 121V clamping, 5000W peak pulse power). The primary difference is packaging format: 5KP75A-B is supplied in Bulk, while 5KP75A is supplied in Cut Tape. Both use P600 axial package geometry.

Q: What are the mechanical differences between P600 and R-6 packages?

A: P600 and R-6 are both axial through-hole packages for TVS diodes. The 5KP75A-TP uses R-6 package geometry instead of P600. Physical dimensions and lead spacing may differ. Mechanical compatibility with PCB footprints must be verified before substitution.

Q: Are all three parts RoHS compliant?

A: Yes. All three parts (5KP75A-B, 5KP75A, and 5KP75A-TP) are ROHS3 compliant with REACH unaffected status.

Q: Does the 5KP75A-TP from Micro Commercial Co meet the same electrical specifications?

A: The 5KP75A-TP maintains equivalent voltage ratings (75V standoff, 83.3V breakdown minimum, 121V clamping maximum) and 5000W peak pulse power. Peak pulse current is not specified for this variant, though power rating equivalence indicates comparable performance.

Q: What is the temperature operating range for all substitute parts?

A: All three parts operate across -55°C to 175°C junction temperature range, providing identical thermal performance specifications.

Q: Can packaging format be mixed in the same assembly?

A: Packaging format (Bulk vs. Cut Tape) affects only supply and handling procedures. Once soldered to the PCB, all parts perform identically. Mixed packaging formats within a single assembly are electrically compatible.