M5KP54AE3 Equivalent & Substitute Parts

Part Overview

The M5KP54AE3 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This through-hole component operates with a 54V reverse standoff voltage and provides 5000W peak pulse power dissipation capability. The part is classified as Active product status with Military grade qualification per MIL-PRF-19500. Substitute parts are identified to address inventory availability, packaging preferences, or compliance requirements while maintaining equivalent electrical performance within specified parameters.

Substiute Parts

M5KP54AE3

Microchip TechnologyIn Stock: 1052M5KP54AE3 Datasheet

Current PartRFQ

5KP54A

Littelfuse Inc.In Stock: 18515KP54A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the M5KP54AE3 are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 54V
• Voltage - Breakdown (Min): 60V
• Voltage - Clamping (Max) @ Ipp: 87.1V
• Power - Peak Pulse: 5000W
• Unidirectional Channels: 1
• Mounting Type: Through Hole
• Type: Zener

Allowable Variations:

• Current - Peak Pulse (10/1000µs): ±2A tolerance
• Operating Temperature range: Extended or equivalent coverage
• Package / Case: Alternative through-hole axial packages
• Packaging format: Bulk, Cut Tape, or equivalent
• RoHS compliance status: Independent of substitution eligibility

The 5KP54A from Littelfuse Inc. qualifies as a direct substitute based on matching all critical electrical parameters within specified tolerances and maintaining through-hole axial mounting compatibility.

Parameter Comparison

Engineering Selection Recommendations

M5KP54AE3 (Microchip Technology):

• Primary selection for applications requiring Military grade qualification per MIL-PRF-19500
• Specified for systems with strict military or aerospace compliance mandates
• Suitable when bulk packaging format is preferred
• Active product status with established supply chain

5KP54A (Littelfuse Inc.):

• Direct electrical substitute with equivalent performance across all critical parameters
• Extended operating temperature range (-55°C to 175°C) provides broader thermal coverage compared to M5KP54AE3 (-65°C to 150°C)
• ROHS3 compliant, suitable for applications with environmental compliance requirements
• Available in Cut Tape packaging format for automated assembly processes
• Active product status with confirmed inventory availability

Both parts maintain identical voltage regulation characteristics (54V standoff, 87.1V clamping) and power dissipation (5000W peak pulse). Selection between these parts depends on compliance certifications, packaging requirements, and thermal operating range specifications for the target application.

Frequently Asked Questions (FAQ)

Q: Can the 5KP54A replace the M5KP54AE3 in all applications?

A: The 5KP54A provides electrical equivalence across all critical parameters: reverse standoff voltage, breakdown voltage, clamping voltage, and peak pulse power. The primary differences are Military grade certification (M5KP54AE3 only), RoHS compliance status (5KP54A only), and operating temperature range (5KP54A extends to 175°C). Substitution is valid for applications where Military grade qualification is not required.

Q: What is the difference between DO-204AR and P600 packages?

A: Both DO-204AR and P600 are through-hole axial package formats for TVS diodes. DO-204AR is the Microchip designation; P600 is the Littelfuse designation. Both packages are mechanically and electrically compatible for through-hole PCB mounting with equivalent lead spacing and component footprints.

Q: Does the 1.6A difference in peak pulse current affect substitution?

A: The 5KP54A peak pulse current is 58.6A compared to 57A for the M5KP54AE3. This 1.6A difference (approximately 2.8%) falls within normal manufacturing tolerances for TVS diodes and does not affect substitution eligibility. Both parts maintain the same 5000W peak pulse power rating.

Q: Why does the 5KP54A have a higher maximum operating temperature?

A: The 5KP54A operates to 175°C (TJ) versus 150°C (TJ) for the M5KP54AE3. This extended thermal range is a characteristic of the Littelfuse design and provides additional margin for high-temperature applications. The M5KP54AE3 Military grade specification may impose different thermal constraints.

Q: Is RoHS compliance a factor in selecting between these parts?

A: RoHS compliance is application-dependent. The M5KP54AE3 is RoHS non-compliant; the 5KP54A is ROHS3 compliant. Applications subject to environmental regulations or customer RoHS requirements must specify the 5KP54A. Applications without such requirements can use either part based on other criteria.

Q: What packaging formats are available for each part?

A: The M5KP54AE3 is supplied in Bulk packaging. The 5KP54A is supplied in Cut Tape (CT) packaging. Cut Tape format is optimized for automated pick-and-place assembly; Bulk format is suitable for manual assembly or reel-based processes.