M5KP58AE3 Equivalent & Substitute Parts

Part Overview

The M5KP58AE3 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 58V reverse standoff voltage and provides 5000W peak pulse power dissipation capability. The part is classified as Active product status and carries Military grade qualification per MIL-PRF-19500. Substitute parts are identified to address packaging preferences, compliance requirements, or inventory availability while maintaining equivalent electrical performance within specified parameters.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	58	V
Voltage - Breakdown (Min)	64.4	V
Voltage - Clamping (Max) @ Ipp	93.6	V
Current - Peak Pulse (10/1000µs)	53	A
Power - Peak Pulse	5000	W
Operating Temperature Range	-65 to 150	°C (TJ)
Mounting Type	Through Hole	—
Package / Case	DO-204AR, Axial	—
Type	Zener	—
Unidirectional Channels	1	—

Substitute Part Grouping Explanation

Substitution of the M5KP58AE3 is determined by equivalence across the following critical electrical parameters:

Voltage - Reverse Standoff (Typ): 58V
Voltage - Breakdown (Min): 64.4V
Voltage - Clamping (Max) @ Ipp: 93.6V
Current - Peak Pulse (10/1000µs): ≥53A
Power - Peak Pulse: 5000W
Type: Zener, Unidirectional
Mounting Type: Through Hole
Unidirectional Channels: 1

The identified substitute part, 5KP58A manufactured by Littelfuse, meets all electrical performance criteria within the specified tolerances. Substitution is valid when the replacement part maintains these parameters and operates within the same functional application envelope for general-purpose transient voltage suppression.

Parameter Comparison

Parameter	M5KP58AE3 (Microchip)	5KP58A (Littelfuse)	Match Status
Voltage - Reverse Standoff (Typ)	58V	58V	Equivalent
Voltage - Breakdown (Min)	64.4V	64.4V	Equivalent
Voltage - Clamping (Max) @ Ipp	93.6V	93.6V	Equivalent
Current - Peak Pulse (10/1000µs)	53A	54.5A	Equivalent (Higher Capacity)
Power - Peak Pulse	5000W	5000W	Equivalent
Operating Temperature Range	-65°C to 150°C	-55°C to 175°C	Substitute Exceeds Range
Type	Zener	Zener	Equivalent
Unidirectional Channels	1	1	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Package / Case	DO-204AR, Axial	P600, Axial	Different Package Designation
Product Status	Active	Active	Equivalent
RoHS Status	RoHS Non-Compliant	RoHS3 Compliant	Substitute Compliant

Engineering Selection Recommendations

M5KP58AE3 (Microchip Technology)

Select this part when Military grade qualification per MIL-PRF-19500 is a contractual or regulatory requirement. The part maintains Active product status with established supply chain presence (1111 pcs in stock). This option is appropriate for defense, aerospace, or applications with explicit military specification mandates. Note that RoHS non-compliance may restrict use in certain regulated markets.

5KP58A (Littelfuse)

Select this substitute when RoHS3 compliance is required for commercial or consumer-grade applications. The part delivers equivalent electrical performance with higher peak pulse current capacity (54.5A vs. 53A) and an extended operating temperature range (-55°C to 175°C). The P600 package designation represents an alternative axial through-hole form factor. This option provides superior inventory availability (4400 pcs in stock) and is suitable for applications where military qualification is not mandated.

Frequently Asked Questions (FAQ)

Q: Are the M5KP58AE3 and 5KP58A electrically interchangeable?

A: Yes. Both parts maintain identical voltage ratings (58V reverse standoff, 93.6V clamping) and power dissipation (5000W peak pulse). The 5KP58A provides slightly higher peak pulse current (54.5A vs. 53A), making it functionally equivalent or superior for the same application.

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

A: Both are axial through-hole package designations for TVS diodes. DO-204AR is the Microchip designation; P600 is the Littelfuse designation. Physical form factors are compatible for standard through-hole PCB mounting, though lead spacing and body dimensions may vary slightly. Verify PCB footprint compatibility before substitution.

Q: Can I use the 5KP58A in a military-qualified design requiring MIL-PRF-19500?

A: No. The 5KP58A does not carry MIL-PRF-19500 qualification. If military specification compliance is contractually mandated, the M5KP58AE3 must be used. If military qualification is not a design requirement, the 5KP58A is a valid substitute.

Q: Does RoHS compliance affect electrical performance?

A: No. RoHS compliance is a material composition and environmental standard, not an electrical performance specification. Both parts deliver identical electrical characteristics. RoHS3 compliance of the 5KP58A is relevant only for regulatory or procurement requirements in specific markets.

Q: What is the operating temperature difference between these parts?

A: The M5KP58AE3 operates from -65°C to 150°C (TJ). The 5KP58A operates from -55°C to 175°C (TJ). The 5KP58A has a wider upper temperature range (+25°C advantage) but a narrower lower temperature range (-10°C disadvantage). Select based on your specific application temperature requirements.

Q: Are there any mechanical compatibility concerns?

A: Both parts are through-hole axial components suitable for standard PCB mounting. Verify lead diameter, pitch, and body length against your PCB design specifications. Package designation differences (DO-204AR vs. P600) may indicate minor dimensional variations; consult manufacturer datasheets for precise mechanical drawings.

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