M5KP40AE3 Equivalent & Substitute Parts

Part Overview

The M5KP40AE3 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 40V reverse standoff voltage and provides 5000W peak pulse power dissipation capability. The part maintains active product status and is qualified to MIL-PRF-19500 military standards. 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 compliance requirements must be met.

Substiute Parts

M5KP40AE3

Microchip TechnologyIn Stock: 853M5KP40AE3 Datasheet

Current PartRFQ

5KP40A

Diotec SemiconductorIn Stock: 34645KP40A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the M5KP40AE3 is determined by electrical and mechanical parameter equivalence. The critical parameters that define substitutability are:

Electrical Parameters:

• Voltage - Reverse Standoff (Typ): 40V
• Voltage - Breakdown (Min): 44.4V
• Voltage - Clamping (Max) @ Ipp: 64.5V
• Current - Peak Pulse (10/1000µs): 78A
• Power - Peak Pulse: 5000W

Mechanical Parameters:

• Type: Zener (unidirectional)
• Unidirectional Channels: 1
• Mounting Type: Through Hole
• Package Style: Axial configuration

The substitute part 5KP40A from Diotec Semiconductor satisfies all electrical parameter requirements and maintains through-hole axial mounting compatibility. Both parts share identical voltage ratings, peak pulse current specifications, and power dissipation capabilities, establishing functional equivalence for general-purpose TVS diode applications.

Parameter Comparison

Engineering Selection Recommendations

M5KP40AE3 (Microchip Technology):

• Primary selection for applications requiring MIL-PRF-19500 military qualification
• Specified for military-grade applications and systems with military compliance requirements
• RoHS non-compliant status requires verification against program environmental requirements
• Operating temperature range: -65°C to 150°C

5KP40A (Diotec Semiconductor):

• Suitable for applications where ROHS3 compliance is mandatory
• Extended upper operating temperature limit (175°C) accommodates higher thermal environments
• Equivalent electrical performance and through-hole axial mounting compatibility
• Active product status ensures continued availability
• Operating temperature range: -50°C to 175°C

Selection between these parts depends on compliance requirements. Military-qualified applications require the M5KP40AE3. Applications subject to RoHS3 environmental directives or requiring extended temperature operation above 150°C specify the 5KP40A. Both parts deliver identical electrical performance for general-purpose TVS diode protection circuits.

Frequently Asked Questions (FAQ)

Q: Are the M5KP40AE3 and 5KP40A electrically interchangeable?

A: Yes. Both parts share identical voltage ratings (40V reverse standoff, 44.4V breakdown minimum, 64.5V clamping maximum), peak pulse current (78A), and power dissipation (5000W). Electrical performance is equivalent for circuit protection applications.

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

A: Both designations refer to through-hole axial package configurations. DO-204AR is the JEDEC standard designation used by Microchip. P600 is the Diotec equivalent designation for the same physical form factor. Both packages are mechanically compatible in through-hole PCB applications.

Q: Which part should be selected for military applications?

A: The M5KP40AE3 is qualified to MIL-PRF-19500 military standards and is the specified choice for military-grade systems. The 5KP40A does not carry military qualification and is not suitable for applications with military compliance mandates.

Q: What is the significance of RoHS compliance differences?

A: The M5KP40AE3 is RoHS non-compliant, while the 5KP40A is ROHS3 compliant. Applications subject to European Union environmental directives or customer RoHS requirements must use the 5KP40A. Military and aerospace applications typically operate under exemptions that permit RoHS non-compliant components.

Q: Are there operating temperature considerations for substitution?

A: The M5KP40AE3 operates from -65°C to 150°C. The 5KP40A operates from -50°C to 175°C. The 5KP40A provides extended upper temperature capability. For applications operating below -50°C, the M5KP40AE3 is required. For applications exceeding 150°C, the 5KP40A is required.

Q: Can these parts be used interchangeably in existing designs?

A: Electrical and mechanical substitution is valid when compliance requirements align. Verify that the selected part meets all program-specific certifications, environmental standards, and temperature operating conditions before implementation.