M5KP85AE3 Equivalent & Substitute Parts

Part Overview

The M5KP85AE3 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This component features an 85V reverse standoff voltage with a 137V maximum clamping voltage and 36A peak pulse current capability. The device is housed in a DO-204AR axial through-hole package and is qualified to MIL-PRF-19500 military standards. The M5KP85AE3 maintains active product status and is available in bulk packaging with 734 pieces currently in stock. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical compatibility, and functional performance within the transient voltage suppression category.

Substiute Parts

M5KP85AE3

Microchip TechnologyIn Stock: 844M5KP85AE3 Datasheet

Current PartRFQ

5KP85A

Diotec SemiconductorIn Stock: 44055KP85A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the M5KP85AE3 are identified based on electrical parameter equivalence within the transient voltage suppression category. The substitution logic is based on the following critical parameters:

Electrical Equivalence Criteria:

• Voltage - Reverse Standoff (Typ): 85V
• Voltage - Breakdown (Min): 94.4V
• Voltage - Clamping (Max) @ Ipp: 137V
• Current - Peak Pulse (10/1000µs): 36A
• Power - Peak Pulse: 5000W

Mechanical Compatibility Criteria:

• Unidirectional Channels: 1
• Mounting Type: Through Hole
• Package Type: Axial configuration

Parts meeting all electrical specifications and mechanical requirements are classified as direct substitutes. The 5KP85A from Diotec Semiconductor satisfies all electrical parameters and maintains through-hole axial mounting compatibility, qualifying it as a functional equivalent despite differences in package designation (P600 versus DO-204AR) and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

M5KP85AE3 (Microchip Technology): The M5KP85AE3 is recommended for applications requiring military-grade qualification per MIL-PRF-19500. This device is suitable for systems with strict military or aerospace compliance requirements. The component operates across a -65°C to 150°C temperature range and carries RoHS non-compliant status. Current inventory of 734 pieces supports immediate procurement for production requirements.

5KP85A (Diotec Semiconductor): The 5KP85A serves as a functional equivalent for general commercial and industrial applications where military qualification is not mandated. This substitute provides identical electrical performance with an extended upper operating temperature limit of 175°C. The device is RoHS3 compliant, supporting environmental and regulatory compliance objectives. Significantly higher inventory availability (4300 pieces) enables rapid fulfillment of large-volume orders.

Selection Basis: Component selection between the M5KP85AE3 and 5KP85A is determined by compliance requirements and application environment. Military-qualified designs require the M5KP85AE3. Commercial applications benefit from the 5KP85A's RoHS compliance and extended temperature rating. Both devices deliver identical transient voltage suppression performance across the specified electrical parameters.

Frequently Asked Questions (FAQ)

Q: Can the 5KP85A replace the M5KP85AE3 in all applications?

A: The 5KP85A matches all critical electrical specifications (85V standoff, 137V clamping, 36A peak pulse, 5000W power) and maintains through-hole axial mounting compatibility. Substitution is valid for applications where MIL-PRF-19500 military qualification is not required. Applications with military compliance mandates must retain the M5KP85AE3.

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

A: Both designations refer to axial through-hole packages with compatible mechanical form factors. DO-204AR is the JEDEC standard designation used by Microchip, while P600 is the Diotec package designation. Both packages accommodate identical lead spacing and mounting procedures on standard PCB layouts.

Q: Are there temperature range differences that affect substitution?

A: The M5KP85AE3 operates from -65°C to 150°C, while the 5KP85A operates from -50°C to 175°C. The 5KP85A provides extended high-temperature capability. For applications operating below -50°C, the M5KP85AE3 is required. For applications within the overlapping range (-50°C to 150°C), either device is suitable.

Q: What is the RoHS compliance difference between these parts?

A: The M5KP85AE3 is RoHS non-compliant, while the 5KP85A is RoHS3 compliant. Applications subject to RoHS directives or customer environmental requirements must use the 5KP85A. General-purpose applications without RoHS mandates can use either device.

Q: Do both parts have the same electrical performance in transient suppression?

A: Yes. Both devices provide identical reverse standoff voltage (85V), breakdown voltage (94.4V minimum), clamping voltage (137V maximum), peak pulse current (36A), and peak pulse power (5000W). Transient suppression performance is equivalent across all specified electrical parameters.

Q: Which part should be selected for new designs?

A: For new commercial designs without military requirements, the 5KP85A is preferred due to RoHS3 compliance, extended temperature range, and superior inventory availability. For military or aerospace applications, the M5KP85AE3 is required to satisfy MIL-PRF-19500 qualification mandates.