M5KP15AE3 Equivalent & Substitute Parts

Part Overview

The M5KP15AE3 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 15V 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 when equivalent electrical performance and mechanical compatibility can be maintained across the critical operating parameters while accommodating different packaging formats, manufacturer specifications, or compliance requirements.

Substiute Parts

M5KP15AE3

Microchip TechnologyIn Stock: 931M5KP15AE3 Datasheet

Current PartRFQ

5KP15A

Littelfuse Inc.In Stock: 43895KP15A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M5KP15AE3 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Voltage - Reverse Standoff (Typ): 15V
• Voltage - Breakdown (Min): 16.7V
• Voltage - Clamping (Max) @ Ipp: 24.4V
• Current - Peak Pulse (10/1000µs): ≥206A
• Power - Peak Pulse: 5000W (5kW)
• Type: Zener, Unidirectional (1 channel)

Mechanical Compatibility Criteria:

• Mounting Type: Through Hole
• Package Category: Axial form factor

Functional Criteria:

• Applications: General Purpose
• Product Status: Active

The identified substitute part maintains electrical performance within the specified tolerance bands and preserves through-hole axial mounting compatibility, enabling direct functional replacement in circuit designs.

Parameter Comparison

Engineering Selection Recommendations

M5KP15AE3 (Microchip Technology):

• Appropriate for applications requiring Military grade qualification under MIL-PRF-19500
• Specified operating temperature range: -65°C ~ 150°C
• DO-204AR package format
• RoHS non-compliant status requires verification against procurement specifications

5KP15A (Littelfuse Inc.):

• Appropriate for applications requiring ROHS3 compliance
• Extended operating temperature range: -55°C ~ 175°C
• P600 package format
• Active product status with higher current capability (209A vs. 206A)
• Suitable for applications where RoHS compliance is mandatory

Selection between these parts depends on compliance requirements, operating temperature constraints, and package format compatibility with the target circuit board design. Both parts satisfy the core electrical performance criteria for general-purpose transient voltage suppression at 15V standoff voltage.

Frequently Asked Questions (FAQ)

Q: Can the 5KP15A (Littelfuse) directly replace the M5KP15AE3 (Microchip) in all applications?

A: Electrical substitution is valid based on equivalent voltage ratings (15V standoff, 24.4V clamping) and peak pulse current capability (206A vs. 209A). However, package format differs (P600 vs. DO-204AR), requiring physical board layout verification. RoHS compliance status differs; procurement specifications must be reviewed.

Q: What is the significance of the different operating temperature ranges?

A: The M5KP15AE3 operates from -65°C to 150°C, while the 5KP15A operates from -55°C to 175°C. Selection depends on the application's thermal environment. The M5KP15AE3 provides lower temperature operation; the 5KP15A provides higher temperature operation. Both ranges are suitable for general-purpose applications unless extreme temperature conditions are specified.

Q: Are the package formats DO-204AR and P600 mechanically compatible?

A: Both are axial through-hole packages. Physical dimensions and lead spacing must be verified against the specific circuit board design. While both are classified as axial form factors, package-specific datasheets should be consulted to confirm mechanical fit and lead diameter compatibility.

Q: What does RoHS compliance status mean for part selection?

A: The M5KP15AE3 is RoHS non-compliant; the 5KP15A is ROHS3 compliant. RoHS compliance is mandatory for many applications, particularly in consumer electronics and regulated industries. Procurement and design specifications must define RoHS requirements before part selection.

Q: How do the peak pulse current ratings (206A vs. 209A) affect substitution?

A: The 5KP15A provides 3A higher peak pulse current (209A) compared to the M5KP15AE3 (206A). Both meet the 5000W power dissipation specification. The higher current capability of the 5KP15A provides additional margin and is considered equivalent or superior for this parameter.

Q: What is the significance of Military grade qualification for the M5KP15AE3?

A: The M5KP15AE3 carries Military grade qualification under MIL-PRF-19500. This certification indicates compliance with military procurement standards. Applications requiring military-grade components must use the M5KP15AE3 or equivalent military-qualified alternatives. The 5KP15A does not carry this qualification.