MP4KE68AE3 Equivalent & Substitute Parts

Part Overview

The MP4KE68AE3 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 carries military-grade qualification under MIL-PRF-19500. The part is currently active in production with 844 units in stock.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across critical parameters including voltage ratings, current handling, clamping characteristics, and package specifications. Alternative sources may be required due to supply chain considerations, packaging format preferences, or compliance requirements.

Substiute Parts

MP4KE68AE3

Microchip TechnologyIn Stock: 858MP4KE68AE3 Datasheet

Current PartRFQ

P4KE68A

Taiwan Semiconductor CorporationIn Stock: 1120P4KE68A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MP4KE68AE3 is determined by strict equivalence across the following critical parameters:

Voltage Specifications: Reverse standoff voltage of 58.1V (typical), breakdown voltage minimum of 64.6V, and clamping voltage maximum of 92V at peak pulse current must be maintained.

Current Rating: Peak pulse current of 4.4A minimum at 10/1000µs pulse width and 400W peak pulse power rating establish the transient suppression capability threshold.

Package Compatibility: DO-204AL (DO-41) axial through-hole package format is mandatory for mechanical and electrical interchangeability.

Electrical Type: Unidirectional Zener diode topology with single channel configuration.

Substitute parts meeting these criteria are functionally equivalent regardless of manufacturer, packaging format (bulk versus tape & reel), or compliance certifications, provided the core electrical and mechanical specifications remain within tolerance.

Parameter Comparison

Engineering Selection Recommendations

MP4KE68AE3 (Microchip Technology): Select this part for applications requiring military-grade qualification under MIL-PRF-19500. The component carries active product status with established supply availability (844 units in stock). RoHS non-compliance status applies; REACH status is unaffected. Bulk packaging format is suitable for direct component integration without tape & reel processing.

P4KE68A (Taiwan Semiconductor Corporation): This substitute provides equivalent electrical performance with enhanced specifications in peak pulse current (4.5A versus 4.4A) and extended operating temperature range (-55°C to 175°C versus -65°C to 150°C). The part is ROHS3 compliant, addressing regulatory requirements where RoHS compliance is mandatory. Tape & reel packaging format is standard for automated assembly processes. Active product status with higher inventory availability (1,065 units in stock) supports consistent supply chain access.

Selection between these parts depends on compliance requirements (military qualification versus RoHS3), packaging format needs (bulk versus tape & reel), and temperature operating envelope specifications.

Frequently Asked Questions (FAQ)

Q: Can P4KE68A replace MP4KE68AE3 in existing designs?

A: Yes. Both parts maintain identical voltage specifications (58.1V standoff, 64.6V breakdown, 92V clamping) and package format (DO-204AL through-hole). The P4KE68A provides equal or superior performance across all critical electrical parameters. Compliance certifications differ; verify RoHS and military qualification requirements for your application.

Q: What is the difference in peak pulse current between these parts?

A: MP4KE68AE3 is rated at 4.4A peak pulse current, while P4KE68A is rated at 4.5A. Both maintain 400W peak pulse power. The P4KE68A's higher current rating provides additional transient suppression margin without affecting voltage clamping characteristics.

Q: Are the operating temperature ranges interchangeable?

A: MP4KE68AE3 operates from -65°C to 150°C (TJ), while P4KE68A operates from -55°C to 175°C (TJ). The P4KE68A supports a wider temperature envelope. If your application requires operation below -55°C or above 150°C, the MP4KE68AE3 is the appropriate selection.

Q: What packaging formats are available?

A: MP4KE68AE3 is supplied in bulk packaging. P4KE68A is supplied in tape & reel (TR) format. Both use identical DO-204AL (DO-41) axial through-hole package geometry. Select based on assembly process requirements: bulk for manual or small-batch assembly, tape & reel for automated pick-and-place operations.

Q: Does RoHS compliance affect electrical performance?

A: No. RoHS3 compliance in the P4KE68A addresses material composition and manufacturing process requirements only. Electrical performance, voltage ratings, and current handling remain unchanged. Select based on regulatory requirements for your end application.

Q: Are both parts suitable for general-purpose overvoltage protection?

A: Yes. Both MP4KE68AE3 and P4KE68A are classified for general-purpose applications with identical voltage suppression characteristics. Neither part is designated for power line protection applications.