P4KE7.5A-B Equivalent & Substitute Parts

Part Overview

The P4KE7.5A-B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose voltage transient protection applications. This through-hole component operates across a wide temperature range and is RoHS3 compliant. The part is currently in active production status with 1082 units available in bulk packaging. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Substiute Parts

P4KE7.5A-B

Littelfuse Inc.In Stock: 1095P4KE7.5A-B Datasheet

Current PartRFQ

P4KE7.5A

Taiwan Semiconductor CorporationIn Stock: 1112P4KE7.5A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P4KE7.5A-B is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 6.4V
• Voltage - Breakdown (Min): 7.13V
• Voltage - Clamping (Max) @ Ipp: 11.3V
• Current - Peak Pulse (10/1000µs): within acceptable tolerance
• Power - Peak Pulse: 400W
• Package / Case: DO-204AL (DO-41) through-hole configuration
• Operating Temperature Range: -55°C to 175°C (TJ)
• Type: Zener, Unidirectional

Substitute parts must maintain identical voltage specifications and mechanical compatibility. Packaging format (bulk versus tape & reel) does not affect electrical substitutability but may impact procurement and assembly workflows.

Parameter Comparison

Engineering Selection Recommendations

The P4KE7.5A (Taiwan Semiconductor Corporation) is a direct electrical and mechanical substitute for the P4KE7.5A-B. Both components maintain identical voltage specifications, thermal operating range, and package configuration. Both parts are RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.

The primary distinction between the two parts is packaging format: the original part is supplied in bulk, while the substitute is available in tape & reel format. This difference does not affect electrical performance or circuit-level compatibility. Peak pulse current specification shows a minor variance (36.3A versus 37A), which remains within acceptable tolerance for the P4KE series specifications.

Selection between these parts should be based on procurement requirements, inventory availability, and assembly process compatibility with the available packaging format.

Frequently Asked Questions (FAQ)

Q: Can P4KE7.5A (Taiwan Semiconductor) be used as a direct replacement for P4KE7.5A-B (Littelfuse)?

A: Yes. Both components share identical voltage ratings (6.4V reverse standoff, 7.13V breakdown minimum, 11.3V clamping maximum), power dissipation (400W peak pulse), operating temperature range (-55°C to 175°C), and DO-204AL (DO-41) through-hole package configuration. Electrical performance is equivalent.

Q: What is the difference between bulk and tape & reel packaging?

A: Bulk packaging supplies loose components, while tape & reel packaging provides components on continuous carrier tape suitable for automated assembly equipment. This affects procurement and assembly workflow but does not alter electrical or mechanical specifications.

Q: Are there any compliance differences between these parts?

A: No. Both parts are RoHS3 compliant, REACH unaffected, and carry identical regulatory certifications (ECCN: EAR99, HTSUS: 8541.10.0080).

Q: What does the peak pulse current variance (36.3A vs. 37A) indicate?

A: This minor variance falls within normal manufacturing tolerance for the P4KE7.5 series and does not affect substitutability. Both values support the same 400W peak pulse power rating.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. Identical package configuration (DO-204AL, DO-41 axial through-hole) ensures mechanical and electrical interchangeability in PCB layouts designed for either component.