M5KP90AE3 Equivalent & Substitute Parts

Part Overview

The M5KP90AE3 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 90V reverse standoff voltage and provides 5000W peak pulse power dissipation capability. The part is classified as Active and carries Military grade qualification under MIL-PRF-19500. Substitute parts are identified to address inventory availability, packaging preferences, and compliance requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

M5KP90AE3

Microchip TechnologyIn Stock: 820M5KP90AE3 Datasheet

Current PartRFQ

5KP90A

Littelfuse Inc.In Stock: 44665KP90A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the M5KP90AE3 are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 90V
• Voltage - Breakdown (Min): 100V
• Voltage - Clamping (Max) @ Ipp: 146V
• Current - Peak Pulse (10/1000µs): ≥34A
• Power - Peak Pulse: 5000W
• Type: Zener, Unidirectional
• Mounting Type: Through Hole
• Unidirectional Channels: 1

The 5KP90A from Littelfuse Inc. qualifies as a direct substitute because it maintains identical voltage specifications, equivalent peak pulse current (34.9A), matching power dissipation (5000W), and compatible through-hole axial packaging. Both components operate within the same functional envelope for general-purpose transient voltage suppression applications.

Parameter Comparison

Engineering Selection Recommendations

M5KP90AE3 (Microchip Technology):

• Select when Military grade qualification and MIL-PRF-19500 certification are mandatory requirements
• Appropriate for applications requiring military-specification compliance
• DO-204AR package provides standard through-hole axial form factor
• RoHS non-compliant status requires verification against environmental regulations

5KP90A (Littelfuse Inc.):

• Select when ROHS3 compliance is required for environmental or regulatory adherence
• Extended operating temperature range (-55°C to 175°C) accommodates wider thermal environments compared to M5KP90AE3 (-65°C to 150°C)
• P600 package maintains through-hole axial compatibility with equivalent mechanical footprint
• Higher inventory availability (4400 pcs) supports rapid procurement
• Cut Tape packaging option provides alternative to bulk packaging

Both parts maintain identical electrical performance for the 90V transient voltage suppression function. Selection between them depends on compliance requirements, temperature operating range, and packaging format preferences.

Frequently Asked Questions (FAQ)

Q: Can the 5KP90A directly replace the M5KP90AE3 in existing designs?

A: Yes, the 5KP90A provides electrical equivalence with identical voltage specifications (90V standoff, 100V breakdown, 146V clamping) and matching power dissipation (5000W). Both components use through-hole axial mounting. Physical package dimensions differ (DO-204AR versus P600), but both are standard axial form factors compatible with through-hole PCB layouts. Verify PCB footprint compatibility before substitution.

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

A: Both DO-204AR and P600 are through-hole axial packages used for TVS diodes. DO-204AR is the Microchip designation; P600 is the Littelfuse designation. Both provide equivalent mechanical mounting on through-hole PCBs. Physical dimensions may vary slightly; consult manufacturer datasheets for precise lead spacing and body length specifications.

Q: Does the 5KP90A meet Military specifications?

A: The 5KP90A is not qualified to MIL-PRF-19500. The M5KP90AE3 carries Military grade qualification. If Military specification compliance is a design requirement, the M5KP90AE3 must be used.

Q: What is the significance of the RoHS compliance difference?

A: The M5KP90AE3 is RoHS non-compliant; the 5KP90A is ROHS3 compliant. ROHS3 compliance restricts hazardous substances in electrical equipment. Select the 5KP90A when environmental regulations or customer specifications mandate RoHS compliance.

Q: Are there temperature operating range considerations for substitution?

A: The M5KP90AE3 operates from -65°C to 150°C; the 5KP90A operates from -55°C to 175°C. The 5KP90A provides extended high-temperature capability. For applications requiring operation below -55°C, the M5KP90AE3 is required. For applications exceeding 150°C, the 5KP90A is required.

Q: What does the peak pulse current specification mean for substitution?

A: The M5KP90AE3 specifies 34A peak pulse current; the 5KP90A specifies 34.9A. Both values meet the 34A requirement, indicating the 5KP90A provides equivalent or superior transient current handling capability. This parameter confirms both parts can suppress identical transient events.

Q: How do packaging formats affect component selection?

A: The M5KP90AE3 is supplied in Bulk packaging; the 5KP90A is supplied in Cut Tape (CT) packaging. Bulk packaging provides loose components; Cut Tape provides components in continuous tape format suitable for automated assembly. Select based on assembly process requirements and inventory management preferences.