P4KE110 Equivalent & Substitute Parts

Part Overview

The P4KE110 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 94V reverse standoff voltage, 159.6V maximum clamping voltage, and 400W peak pulse power rating in a through-hole DO-204AL (DO-41) axial package. The P4KE110 is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts maintain the core electrical specifications while offering active product status from alternative manufacturers.

Substiute Parts

P4KE110

Littelfuse Inc.In Stock: 1034P4KE110 Datasheet

Current PartRFQ

P4KE110A

Taiwan Semiconductor CorporationIn Stock: 888P4KE110A Datasheet

DirectRFQ

P4KE110A-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 840P4KE110A-E3/54 Datasheet

DirectRFQ

P4KE110AHE3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 1049P4KE110AHE3/54 Datasheet

DirectRFQ

P4KE110A-AP

Micro Commercial CoIn Stock: 764P4KE110A-AP Datasheet

MFR RecommendedRFQ

P4KE110A-BP

Micro Commercial CoIn Stock: 1138P4KE110A-BP Datasheet

MFR RecommendedRFQ

P4KE110A-G

Comchip TechnologyIn Stock: 733P4KE110A-G Datasheet

MFR RecommendedRFQ

P4KE110A-TP

Micro Commercial CoIn Stock: 725P4KE110A-TP Datasheet

MFR RecommendedRFQ

P6KE110A

Taiwan Semiconductor CorporationIn Stock: 16334P6KE110A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P4KE110 are qualified based on the following electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 94V
• Voltage - Clamping (Max) @ Ipp: 152V to 159.6V range
• Current - Peak Pulse (10/1000µs): 2.6A to 2.7A
• Power - Peak Pulse: 400W
• Operating Temperature Range: -55°C minimum to 150°C or higher
• Mounting Type: Through Hole
• Package / Case: DO-204AL or DO-41 Axial
• Type: Zener, Unidirectional

Substitutes are grouped into two categories: direct electrical equivalents with identical or near-identical clamping voltages (152V), and higher-power alternatives (P6KE110A series at 600W). All substitute parts maintain the 94V reverse standoff voltage and general-purpose application profile of the original component.

Parameter Comparison

Engineering Selection Recommendations

Direct Electrical Equivalents (P4KE110A Series)

The P4KE110A variants from Taiwan Semiconductor Corporation, Vishay General Semiconductor, Micro Commercial Co, and Comchip Technology provide direct electrical substitution for the obsolete P4KE110. These parts maintain the 94V reverse standoff voltage, 152V clamping voltage, 400W power rating, and through-hole axial package configuration. All substitute parts are active products with ROHS3 compliance. Selection among these equivalents depends on packaging preference (Tape & Reel versus Bulk) and operating temperature requirements. The P4KE110A-G from Comchip Technology operates to 150°C maximum, which is lower than the original 175°C specification.

Higher-Power Alternative (P6KE110A)

The P6KE110A from Taiwan Semiconductor Corporation provides increased peak pulse current (4A) and power dissipation (600W) while maintaining the same 94V reverse standoff and 152V clamping voltages. This part uses a DO-204AC (DO-15) package instead of DO-204AL (DO-41), requiring PCB layout modification. The P6KE110A is suitable for applications requiring higher transient energy absorption capacity.

Compliance and Certification

All substitute parts listed are ROHS3 compliant. The P4KE110AHE3/54 from Vishay carries AEC-Q101 automotive qualification, suitable for automotive-grade applications. Standard industrial-grade substitutes are available from multiple manufacturers with active product status.

Frequently Asked Questions (FAQ)

Q: Can I directly replace P4KE110 with P4KE110A?

A: Yes. The P4KE110A maintains the critical electrical parameters: 94V reverse standoff voltage, 152V clamping voltage, 2.7A peak pulse current, and 400W power rating. Both use the same DO-204AL (DO-41) through-hole axial package. The primary difference is product status—P4KE110A is active while P4KE110 is obsolete.

Q: What is the difference between P4KE110A variants from different manufacturers?

A: All P4KE110A variants meet the same electrical specifications. Differences exist in packaging format (Tape & Reel versus Bulk), peak pulse current tolerance (2.6A to 2.7A), and maximum operating temperature (150°C to 175°C). Micro Commercial Co variants are supplied in Bulk packaging, while Taiwan Semiconductor and Vishay offer Tape & Reel options.

Q: When should I use P6KE110A instead of P4KE110A?

A: Use P6KE110A when your application requires higher transient energy absorption. The P6KE110A provides 4A peak pulse current and 600W power dissipation compared to 2.7A and 400W for P4KE110A. However, P6KE110A uses a different package (DO-15 instead of DO-41), requiring PCB redesign.

Q: Are all substitute parts RoHS compliant?

A: All listed substitute parts are ROHS3 compliant. The P4KE110AHE3/54 additionally carries AEC-Q101 automotive qualification for applications requiring automotive-grade components.

Q: What is the operating temperature difference between P4KE110A-G and other substitutes?

A: The P4KE110A-G from Comchip Technology operates to a maximum of 150°C, while most other substitutes operate to 175°C. If your application requires operation above 150°C, select alternatives from Taiwan Semiconductor Corporation, Vishay, or Micro Commercial Co.

Q: Can I use P4KE110A in existing P4KE110 designs without PCB modification?

A: Yes. The P4KE110A uses the same DO-204AL (DO-41) through-hole axial package as the original P4KE110, allowing direct PCB substitution without layout changes.