P4KE180 Equivalent & Substitute Parts

Part Overview

The P4KE180 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in through-hole applications. This component features a 154V reverse standoff voltage, 258.3V maximum clamping voltage, and 400W peak pulse power rating in a DO-204AL (DO-41) axial package. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and field replacement requirements.

Substiute Parts

P4KE180

Littelfuse Inc.In Stock: 814P4KE180 Datasheet

Current PartRFQ

P4KE180A

Taiwan Semiconductor CorporationIn Stock: 698P4KE180A Datasheet

DirectRFQ

BZW04-154-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 1093BZW04-154-E3/54 Datasheet

DirectRFQ

P4KE180A-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 854P4KE180A-E3/54 Datasheet

DirectRFQ

P4KE180AHE3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 859P4KE180AHE3/54 Datasheet

DirectRFQ

P4KE180A-AP

Micro Commercial CoIn Stock: 924P4KE180A-AP Datasheet

MFR RecommendedRFQ

P4KE180A-BP

Micro Commercial CoIn Stock: 1018P4KE180A-BP Datasheet

MFR RecommendedRFQ

P4KE180A-G

Comchip TechnologyIn Stock: 789P4KE180A-G Datasheet

MFR RecommendedRFQ

P4KE180A-TP

Micro Commercial CoIn Stock: 1195P4KE180A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P4KE180 is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 154V
• Voltage - Clamping (Max) @ Ipp: 246V to 258.3V range
• Current - Peak Pulse (10/1000µs): 1.6A to 1.7A
• Power - Peak Pulse: 400W
• Package / Case: DO-204AL, DO-41, Axial
• Mounting Type: Through Hole
• Type: Zener, Unidirectional

All identified substitute parts maintain these core electrical specifications and physical form factor, ensuring direct functional replacement in circuit applications. Variations in clamping voltage (246V vs. 258.3V) and peak pulse current (1.6A vs. 1.7A) remain within acceptable tolerance bands for general-purpose transient suppression.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are active products with ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and production environments. Selection between alternatives depends on packaging requirements and operational temperature constraints:

For automated assembly processes requiring tape and reel packaging, P4KE180A-TP (Micro Commercial Co) or P4KE180A-E3/54 (Vishay) are preferred options, both maintaining full -55°C to 175°C operating range.

For bulk packaging applications, P4KE180A-AP or P4KE180A-BP (Micro Commercial Co) provide equivalent electrical performance with 1.7A peak pulse current matching the original specification.

The P4KE180A-G variant from Comchip Technology operates within a reduced temperature range (-55°C to 150°C) and should be selected only when application requirements do not exceed 150°C junction temperature.

Vishay TransZorb® variants (BZW04-154-E3/54, P4KE180A-E3/54, P4KE180AHE3/54) deliver 1.6A peak pulse current, which remains within acceptable tolerance for general-purpose transient suppression applications. The P4KE180AHE3/54 variant includes AEC-Q101 automotive qualification for applications requiring automotive-grade reliability.

Frequently Asked Questions (FAQ)

Q: Can P4KE180A substitute directly for the obsolete P4KE180?

A: Yes. P4KE180A maintains identical reverse standoff voltage (154V), equivalent clamping voltage (246V vs. 258.3V), matching peak pulse current (1.7A), and identical power rating (400W). Both use DO-204AL (DO-41) axial through-hole packaging.

Q: What is the difference between 246V and 258.3V clamping voltage specifications?

A: Both values fall within the acceptable clamping voltage range for 154V standoff TVS diodes. The 246V specification represents a tighter manufacturing tolerance. Selection between these variants depends on circuit design margins; applications requiring maximum voltage clamping should specify the 258.3V variant where available.

Q: Are Vishay BZW04-154-E3/54 and P4KE180A-E3/54 interchangeable?

A: Yes, for general-purpose applications. Both maintain 154V standoff, 246V clamping, 400W power rating, and -55°C to 175°C operating range in DO-204AL packaging. The 1.6A peak pulse current is slightly lower than the original 1.7A specification but remains functionally equivalent for transient suppression.

Q: What packaging options are available for high-volume production?

A: Tape and reel (TR) packaging is available from P4KE180A-TP (Micro Commercial Co), P4KE180A (Taiwan Semiconductor Corporation), and Vishay variants (BZW04-154-E3/54, P4KE180A-E3/54, P4KE180AHE3/54). Bulk packaging is available from Micro Commercial Co (P4KE180A-AP, P4KE180A-BP) and Comchip Technology (P4KE180A-G).

Q: Does the P4KE180AHE3/54 automotive qualification affect electrical performance?

A: No. AEC-Q101 qualification certifies manufacturing and reliability processes but does not alter electrical specifications. The P4KE180AHE3/54 maintains identical voltage, current, and power ratings as other P4KE180A variants.

Q: Which substitute part has the widest operating temperature range?

A: P4KE180A-TP, P4KE180A, P4KE180A-AP, P4KE180A-BP, and all Vishay variants operate across -55°C to 175°C. The P4KE180A-G variant is limited to -55°C to 150°C and should not be used in applications exceeding 150°C junction temperature.