MP4KE11AE3 Equivalent & Substitute Parts

Part Overview

The MP4KE11AE3 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 across a wide temperature range (-65°C to 150°C) and is qualified to MIL-PRF-19500 military standards. The device is currently in active production status with 713 units available in bulk packaging.

Substitute parts are identified to address packaging format requirements, compliance certifications, or inventory availability while maintaining electrical and mechanical compatibility within the specified parameter tolerances.

Substiute Parts

MP4KE11AE3

Microchip TechnologyIn Stock: 799MP4KE11AE3 Datasheet

Current PartRFQ

P4KE11A

Taiwan Semiconductor CorporationIn Stock: 933P4KE11A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MP4KE11AE3 is determined by equivalence across the following critical electrical parameters:

• Voltage - Reverse Standoff (Typ): 9.4V
• Voltage - Breakdown (Min): 10.5V
• Voltage - Clamping (Max) @ Ipp: 15.6V
• Current - Peak Pulse (10/1000µs): minimum 26A
• Power - Peak Pulse: 400W
• Package / Case: DO-204AL (DO-41) axial through-hole
• Unidirectional Channels: 1
• Type: Zener

The identified substitute part P4KE11A meets all electrical specifications and maintains identical mechanical compatibility. Differences in packaging format (Tape & Reel versus Bulk), manufacturer origin, operating temperature range extension, and RoHS compliance status are secondary considerations that do not affect functional substitution within the specified electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

MP4KE11AE3 (Microchip Technology)

Select this part when military-grade qualification (MIL-PRF-19500) is a contractual or design requirement. The component is actively produced and available in bulk packaging format. This part is RoHS non-compliant and suitable for applications where legacy compliance status is acceptable or required.

P4KE11A (Taiwan Semiconductor Corporation)

Select this substitute when RoHS3 compliance is required for the end application. The P4KE11A is supplied in Tape & Reel packaging, suitable for automated assembly processes. This part extends the operating temperature range to 175°C maximum and provides peak pulse current capability of 27A, exceeding the original specification. Both parts maintain identical electrical performance within the specified voltage and power parameters.

Both parts are active products with confirmed inventory availability and carry identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications.

Frequently Asked Questions (FAQ)

Q: Can P4KE11A be used as a direct replacement for MP4KE11AE3 in existing circuit designs?

A: Yes. Both parts are electrically equivalent across all critical parameters: reverse standoff voltage (9.4V), breakdown voltage (10.5V minimum), clamping voltage (15.6V maximum), and power dissipation (400W peak pulse). Both use identical DO-204AL (DO-41) axial through-hole packaging. The substitute part meets or exceeds the original specification in peak pulse current (27A versus 26A) and operating temperature range (-55°C to 175°C versus -65°C to 150°C).

Q: What is the difference between Bulk and Tape & Reel packaging?

A: Bulk packaging is supplied as loose components suitable for manual assembly or small-quantity applications. Tape & Reel packaging places components on continuous carrier tape within reels, optimized for automated pick-and-place assembly equipment. Both packaging formats contain identical components with no electrical or mechanical differences.

Q: Does the extended operating temperature range of P4KE11A affect circuit performance?

A: No. The extended range (-55°C to 175°C versus -65°C to 150°C) represents an expanded capability of the substitute part. If the original design operates within -65°C to 150°C, the P4KE11A will perform identically. The extended range provides additional margin for applications requiring lower minimum temperatures or higher maximum temperatures.

Q: Are there compliance or certification differences between these parts?

A: Yes. MP4KE11AE3 is qualified to MIL-PRF-19500 military standards and is RoHS non-compliant. P4KE11A is RoHS3 compliant. Both parts are REACH Unaffected and carry identical ECCN and HTSUS classifications. Select based on end-application compliance requirements.

Q: Is the 1A difference in peak pulse current (26A versus 27A) significant?

A: No. The P4KE11A specification of 27A exceeds the original 26A requirement. This represents improved performance margin and does not create compatibility issues. Both parts are rated for 400W peak pulse power dissipation.