M5KP20AE3 Equivalent & Substitute Parts

Part Overview

The M5KP20AE3 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This component features a 20V reverse standoff voltage with a 32.4V maximum clamping voltage and 154A 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 M5KP20AE3 is currently in active production status. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part becomes unavailable or when alternative packaging or compliance requirements necessitate component substitution.

Substiute Parts

M5KP20AE3

Microchip TechnologyIn Stock: 737M5KP20AE3 Datasheet

Current PartRFQ

5KP20A

Diotec SemiconductorIn Stock: 172765KP20A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the M5KP20AE3 are identified based on electrical parameter equivalence within the transient voltage suppressor category. The substitution logic is based on the following critical parameters:

Electrical Equivalence Criteria:

• Voltage - Reverse Standoff (Typ): 20V
• Voltage - Breakdown (Min): 22.2V
• Voltage - Clamping (Max) @ Ipp: 32.4V
• Current - Peak Pulse (10/1000µs): 154A
• Power - Peak Pulse: 5000W
• Type: Zener, Unidirectional (1 channel)

Mechanical Compatibility Criteria:

• Mounting Type: Through Hole
• Package Category: Axial

Parts meeting all electrical parameters and through-hole axial mounting requirements are classified as direct substitutes. Variations in package designation (DO-204AR versus P600), packaging format (Bulk versus Tape & Reel), operating temperature range, and compliance certifications do not affect electrical substitutability but may influence procurement and application suitability.

Parameter Comparison

Engineering Selection Recommendations

M5KP20AE3 (Microchip Technology)

The M5KP20AE3 is the primary component specification. This part carries MIL-PRF-19500 military qualification and is classified as Grade Military. The device is RoHS non-compliant and carries REACH Unaffected status. Current inventory is 664 pieces in bulk packaging. This part is suitable for applications requiring military-grade certification and qualification documentation.

5KP20A (Diotec Semiconductor)

The 5KP20A is a direct electrical substitute with identical voltage and current ratings. This part is ROHS3 compliant and carries REACH information available upon request, making it suitable for applications with RoHS compliance requirements. The operating temperature range extends to 175°C (compared to 150°C for the M5KP20AE3), providing enhanced thermal performance in high-temperature environments. The part is supplied in Tape & Reel packaging with significantly higher inventory availability (17,200 pieces). The package designation is P600 (axial), which is mechanically compatible with DO-204AR footprints in through-hole applications. This part is suitable for commercial and industrial applications where RoHS compliance is mandated.

Selection Basis:

Component selection between M5KP20AE3 and 5KP20A is determined by compliance requirements and environmental operating conditions. Military applications requiring MIL-PRF-19500 qualification necessitate the M5KP20AE3. Commercial applications subject to RoHS directives or requiring extended temperature operation to 175°C utilize the 5KP20A. Both parts deliver identical electrical performance in the 20V TVS diode category.

Frequently Asked Questions (FAQ)

Q: Are the M5KP20AE3 and 5KP20A electrically interchangeable?

A: Yes. Both parts are unidirectional TVS diodes with identical voltage ratings (20V reverse standoff, 22.2V breakdown minimum, 32.4V clamping maximum), peak pulse current (154A), and peak pulse power (5000W). Electrical performance is equivalent across all specified parameters.

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

A: DO-204AR and P600 are both axial through-hole package designations for TVS diodes. Both packages are mechanically compatible with standard through-hole PCB footprints designed for axial components. Package designation differences reflect manufacturer nomenclature but do not affect physical compatibility or electrical performance.

Q: Can the 5KP20A replace the M5KP20AE3 in military applications?

A: The 5KP20A does not carry MIL-PRF-19500 qualification. Applications requiring military-grade certification and qualification documentation must use the M5KP20AE3. The 5KP20A is suitable for commercial and industrial applications.

Q: What is the significance of RoHS compliance status?

A: The M5KP20AE3 is RoHS non-compliant, while the 5KP20A is ROHS3 compliant. Applications subject to RoHS directives (European Union and equivalent regulations) require ROHS3-compliant components. The 5KP20A meets these regulatory requirements; the M5KP20AE3 does not.

Q: Does the extended operating temperature range of the 5KP20A affect substitution suitability?

A: The 5KP20A operates from -50°C to 175°C, compared to -65°C to 150°C for the M5KP20AE3. The 5KP20A provides a higher maximum temperature rating, making it suitable for high-temperature applications. The M5KP20AE3 provides a lower minimum temperature rating (-65°C versus -50°C). Application temperature requirements determine which part is appropriate.

Q: What packaging format differences exist between these parts?

A: The M5KP20AE3 is supplied in Bulk packaging (664 pieces available). The 5KP20A is supplied in Tape & Reel format (17,200 pieces available). Bulk packaging is typical for small-quantity procurement and prototype applications. Tape & Reel packaging is standard for automated assembly and high-volume production. Packaging format does not affect electrical or mechanical compatibility.

Q: Are there any REACH compliance differences?

A: The M5KP20AE3 carries REACH Unaffected status. The 5KP20A has REACH information available upon request. Both parts are suitable for applications subject to REACH regulations; however, the 5KP20A requires specific REACH documentation review for particular applications.