M5KP22AE3 Equivalent & Substitute Parts

Part Overview

The M5KP22AE3 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This component operates with a 22V reverse standoff voltage and provides 35.5V maximum clamping voltage at peak pulse current. The device is housed in a DO-204AR axial through-hole package and is qualified to MIL-PRF-19500 military standards. As an active product with established supply availability, equivalent alternatives exist for applications requiring identical electrical performance or where specific packaging or compliance requirements necessitate component substitution.

Substiute Parts

M5KP22AE3

Microchip TechnologyIn Stock: 692M5KP22AE3 Datasheet

Current PartRFQ

5KP22A

Diotec SemiconductorIn Stock: 89065KP22A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the M5KP22AE3 is determined by electrical parameter equivalence across the following critical specifications:

Electrical Equivalence Criteria:

• Voltage - Reverse Standoff (Typ): 22V
• Voltage - Breakdown (Min): 24.4V
• Voltage - Clamping (Max) @ Ipp: 35.5V
• Current - Peak Pulse (10/1000µs): 141A
• Power - Peak Pulse: 5000W

Mechanical Compatibility Criteria:

• Unidirectional Channels: 1
• Mounting Type: Through Hole
• Package Category: Axial

The 5KP22A manufactured by Diotec Semiconductor meets all electrical parameter requirements for direct substitution. Both devices share identical voltage ratings, peak pulse current specifications, and power dissipation capabilities. The primary differences are packaging designation (P600 versus DO-204AR) and operating temperature range, which do not affect functional equivalence for general-purpose transient voltage suppression applications.

Parameter Comparison

Engineering Selection Recommendations

M5KP22AE3 (Microchip Technology):

• Select when MIL-PRF-19500 military qualification is required
• Appropriate for applications with extended low-temperature operation requirements (-65°C minimum)
• Suitable for designs requiring military-grade component certification
• RoHS non-compliant status must be evaluated against system requirements

5KP22A (Diotec Semiconductor):

• Select when equivalent electrical performance is the primary requirement
• Appropriate for commercial and industrial applications
• Suitable for designs with operating temperature range of -50°C to 175°C
• Higher inventory availability (8804 units) supports rapid procurement
• REACH status listed as Vendor Undefined; compliance verification required for regulated applications

Both devices provide identical transient voltage suppression performance for general-purpose applications. Selection between alternatives depends on compliance certifications, temperature operating range requirements, and supply chain considerations rather than electrical performance differences.

Frequently Asked Questions (FAQ)

Q: Can the 5KP22A directly replace the M5KP22AE3 in existing designs?

A: Yes, for applications where military qualification (MIL-PRF-19500) is not required. Both devices have identical electrical specifications: 22V reverse standoff voltage, 35.5V clamping voltage, 141A peak pulse current, and 5000W power dissipation. Physical compatibility exists as both are through-hole axial components.

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

A: Both designations refer to axial through-hole package formats suitable for identical PCB mounting. DO-204AR is the Microchip designation; P600 is the Diotec designation. The packages are mechanically compatible for standard through-hole applications.

Q: Does the operating temperature difference affect substitution suitability?

A: The M5KP22AE3 operates from -65°C to 150°C, while the 5KP22A operates from -50°C to 175°C. For applications operating within the overlapping range (-50°C to 150°C), both devices are suitable. Applications requiring operation below -50°C require the M5KP22AE3.

Q: Are there compliance considerations for substitution?

A: The M5KP22AE3 is MIL-PRF-19500 qualified and RoHS non-compliant. The 5KP22A has undefined REACH status. Applications subject to military specifications, RoHS directives, or REACH regulations must verify compliance before substitution.

Q: What electrical parameters must remain identical for TVS diode substitution?

A: For general-purpose transient voltage suppression, the following parameters must match: reverse standoff voltage, breakdown voltage, clamping voltage at peak pulse current, peak pulse current rating, and power dissipation capability. All these parameters are identical between the M5KP22AE3 and 5KP22A.