MP4KE30AE3 Equivalent & Substitute Parts

Part Overview

The MP4KE30AE3 is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This through-hole component operates with a reverse standoff voltage of 25.6V and provides clamping at 41.4V maximum, with a peak pulse current rating of 9.5A. The device is classified as military-grade and qualified to MIL-PRF-19500 standards.

Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter tolerances while maintaining functional compatibility in the target application circuit. Alternative sources may be required due to inventory availability, packaging format preferences, or compliance requirements.

Substiute Parts

MP4KE30AE3

Microchip TechnologyIn Stock: 889MP4KE30AE3 Datasheet

Current PartRFQ

P4KE30A

Taiwan Semiconductor CorporationIn Stock: 24245P4KE30A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MP4KE30AE3 is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - Reverse Standoff (Typ): 25.6V
• Voltage - Breakdown (Min): 28.5V
• Voltage - Clamping (Max) @ Ipp: 41.4V
• Current - Peak Pulse (10/1000µs): ≥9.5A
• Power - Peak Pulse: ≥400W
• Type: Zener
• Unidirectional Channels: 1

Mechanical Equivalence Criteria:

• Mounting Type: Through Hole
• Package / Case: DO-204AL (DO-41)

The P4KE30A from Taiwan Semiconductor Corporation meets all electrical parameters with equivalent or superior ratings (10A peak pulse current versus 9.5A) and maintains identical mechanical compatibility through the DO-204AL package format. Both devices share the same base product number (P4KE30) and are classified as active products with general-purpose application suitability.

Parameter Comparison

Engineering Selection Recommendations

MP4KE30AE3 (Microchip Technology):

• Military-grade qualification per MIL-PRF-19500
• RoHS non-compliant; REACH Unaffected
• Bulk packaging format
• Inventory: 876 pcs
• Operating temperature range: -65°C to 150°C
• Select this part for applications requiring military qualification or when bulk packaging is specified

P4KE30A (Taiwan Semiconductor Corporation):

• ROHS3 compliant
• REACH Unaffected
• Tape & Reel (TR) packaging format
• Inventory: 24,200 pcs
• Operating temperature range: -55°C to 175°C
• Peak pulse current: 10A (superior to 9.5A)
• Select this part for applications requiring RoHS3 compliance, extended temperature operation, or when tape & reel packaging is preferred

Both devices are active products with identical electrical performance in the critical voltage parameters. The P4KE30A provides superior current handling and extended operating temperature range. Selection between these parts depends on compliance requirements, packaging format, and inventory availability for the specific application.

Frequently Asked Questions (FAQ)

Q: Can the P4KE30A directly replace the MP4KE30AE3 in existing circuit designs?

A: Yes. Both devices are electrically equivalent across all critical voltage parameters (25.6V standoff, 28.5V breakdown minimum, 41.4V clamping maximum) and share identical mechanical compatibility through the DO-204AL package. The P4KE30A provides equal or superior performance with 10A peak pulse current versus 9.5A.

Q: What is the primary difference between these two parts?

A: The primary differences are manufacturer source, packaging format (bulk versus tape & reel), compliance certification (military qualification versus RoHS3), and operating temperature range (-65°C to 150°C versus -55°C to 175°C). Electrical performance in the voltage domain is identical.

Q: Are there packaging compatibility concerns when switching from MP4KE30AE3 to P4KE30A?

A: No. Both parts use the DO-204AL (DO-41) axial through-hole package format. Mechanical fit and PCB mounting are identical. The difference is in supply format: MP4KE30AE3 is supplied in bulk, while P4KE30A is supplied in tape & reel format.

Q: Which part should be selected for RoHS-compliant applications?

A: The P4KE30A is ROHS3 compliant and must be selected for applications requiring RoHS compliance. The MP4KE30AE3 is RoHS non-compliant.

Q: Does the P4KE30A meet military qualification requirements?

A: The P4KE30A does not carry military qualification per MIL-PRF-19500. The MP4KE30AE3 is military-grade qualified. Select the MP4KE30AE3 for applications with explicit military qualification requirements.

Q: What is the impact of the extended operating temperature range in the P4KE30A?

A: The P4KE30A operates from -55°C to 175°C versus -65°C to 150°C for the MP4KE30AE3. The P4KE30A provides higher maximum temperature capability (+25°C advantage) but a narrower minimum temperature range (-10°C disadvantage). Select based on the specific thermal environment of the application.

Q: Are both parts suitable for general-purpose transient voltage suppression?

A: Yes. Both devices are classified for general-purpose applications and provide identical clamping performance at 41.4V maximum with 400W peak pulse power dissipation capability.