M5KP8.0CAE3 Equivalent & Substitute Parts

Part Overview

The M5KP8.0CAE3 is a transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This bidirectional zener diode operates with an 8V reverse standoff voltage and provides 13.6V clamping at peak pulse current, delivering 5000W peak pulse power dissipation in a through-hole DO-204AR axial package. The component is classified as active and carries military-grade qualification under MIL-PRF-19500. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity while maintaining electrical and mechanical compatibility.

Substiute Parts

M5KP8.0CAE3

Microchip TechnologyIn Stock: 1157M5KP8.0CAE3 Datasheet

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5KP8.0CA

Littelfuse Inc.In Stock: 41205KP8.0CA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the M5KP8.0CAE3 are identified based on strict electrical and mechanical parameter matching within the transient voltage suppressor category. The substitution logic requires equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 8V
• Voltage - Clamping (Max) @ Ipp: 13.6V
• Power - Peak Pulse: 5000W
• Bidirectional Channels: 1
• Type: Zener
• Mounting Type: Through Hole
• Package Category: Axial

The substitute part 5KP8.0CA, manufactured by Littelfuse Inc., meets all electrical specifications and maintains mechanical compatibility through axial through-hole mounting. Variations in peak pulse current (375A versus 367A) and operating temperature range remain within acceptable tolerance bands for general-purpose TVS applications. Packaging format differences (Tape & Reel versus Bulk) do not affect functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Both the M5KP8.0CAE3 and 5KP8.0CA are active products suitable for general-purpose TVS applications. Selection between these parts is determined by compliance and certification requirements specific to the end application.

The M5KP8.0CAE3 carries military-grade qualification under MIL-PRF-19500 and is classified as RoHS non-compliant. This part is appropriate for defense, aerospace, and legacy industrial systems where military specifications are mandated.

The 5KP8.0CA is ROHS3 compliant and carries no military qualification. This part is suitable for commercial and industrial applications where RoHS compliance is required and military specifications are not applicable.

Both parts maintain identical electrical performance across voltage clamping, reverse standoff, and power dissipation parameters. The 5KP8.0CA provides a marginally higher peak pulse current rating (375A versus 367A), which does not compromise compatibility in applications designed for the M5KP8.0CAE3 specification.

Frequently Asked Questions (FAQ)

Q: Can the 5KP8.0CA directly replace the M5KP8.0CAE3 in all applications?

A: Direct substitution is electrically valid for applications where military qualification is not required. The 5KP8.0CA meets all critical electrical parameters: 8V reverse standoff, 13.6V clamping voltage, and 5000W peak pulse power. However, applications requiring MIL-PRF-19500 certification must use the M5KP8.0CAE3.

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

A: Both DO-204AR and P600 are axial through-hole package designations for TVS diodes. They are mechanically compatible for PCB mounting and lead spacing. Package designation differences reflect manufacturer-specific nomenclature rather than functional variation.

Q: Does the operating temperature range difference affect substitution?

A: The 5KP8.0CA operates across -55°C to 175°C, while the M5KP8.0CAE3 operates across -65°C to 150°C. For applications operating within the overlapping range (-55°C to 150°C), both parts are functionally equivalent. Applications requiring operation below -55°C or above 150°C must use the part with the appropriate temperature specification.

Q: Why is the peak pulse current different between the two parts?

A: The 5KP8.0CA is rated at 375A peak pulse current compared to 367A for the M5KP8.0CAE3. This 2.2% difference reflects manufacturer-specific characterization and does not affect substitution compatibility. Both parts deliver the same 5000W peak pulse power and 13.6V clamping voltage.

Q: What is the significance of RoHS compliance in part selection?

A: RoHS compliance is a regulatory requirement for products sold in specific markets. The M5KP8.0CAE3 is RoHS non-compliant, while the 5KP8.0CA is ROHS3 compliant. Selection depends on end-market requirements and regulatory jurisdiction. Both parts are functionally equivalent for the TVS application.

Q: Are there inventory or packaging considerations for substitution?

A: The M5KP8.0CAE3 is supplied in Bulk packaging with 1100 pieces in stock. The 5KP8.0CA is supplied in Tape & Reel (TR) format with 4100 pieces in stock. Packaging format does not affect electrical or mechanical compatibility but may influence procurement logistics and handling procedures.