MP4KE110AE3 Equivalent & Substitute Parts

Part Overview

The MP4KE110AE3 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 685 units in stock.

Identifying equivalent and substitute parts becomes necessary when addressing supply chain constraints, packaging format requirements, compliance specifications, or operational temperature range needs for specific application environments.

Substiute Parts

MP4KE110AE3

Microchip TechnologyIn Stock: 783MP4KE110AE3 Datasheet

Current PartRFQ

P4KE110A

Taiwan Semiconductor CorporationIn Stock: 888P4KE110A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MP4KE110AE3 is determined by the following critical parameters:

Voltage Parameters: Reverse standoff voltage (94V typical), breakdown voltage minimum (105V), and clamping voltage maximum at peak pulse current (152V) must remain identical across all substitute parts to ensure circuit protection thresholds are maintained.

Current and Power Ratings: Peak pulse current (10/1000µs) and peak pulse power (400W) establish the transient energy handling capability. Substitute parts must meet or exceed these specifications.

Package and Mounting: All substitutes must utilize the DO-204AL (DO-41) axial through-hole package format to ensure mechanical and electrical compatibility with existing PCB designs.

Device Type: Unidirectional Zener topology must be preserved for single-polarity overvoltage protection applications.

The P4KE110A from Taiwan Semiconductor Corporation qualifies as a direct substitute based on matching voltage parameters, package format, and exceeding current/power specifications while maintaining the same base product number (P4KE110).

Parameter Comparison

Engineering Selection Recommendations

MP4KE110AE3 (Microchip Technology): Select this part for applications requiring military-grade qualification under MIL-PRF-19500. This component is RoHS non-compliant and carries active product status with established supply availability (685 units in stock). The military qualification and lower temperature floor (-65°C) make this suitable for defense and aerospace applications with stringent certification requirements.

P4KE110A (Taiwan Semiconductor Corporation): Select this substitute for commercial and industrial applications where RoHS3 compliance is mandatory. This part offers an extended upper operating temperature limit (175°C versus 150°C) and slightly higher peak pulse current capability (2.7A versus 2.6A). The tape and reel packaging format supports automated assembly processes. This substitute maintains identical voltage protection thresholds while providing enhanced thermal performance and regulatory compliance.

Both parts share the same base product number (P4KE110) and deliver equivalent circuit protection performance within their respective operating temperature ranges and compliance frameworks.

Frequently Asked Questions (FAQ)

Q: Can the P4KE110A directly replace the MP4KE110AE3 in existing designs?

A: Yes, the P4KE110A provides direct functional substitution. Both parts maintain identical voltage parameters (94V standoff, 105V breakdown minimum, 152V clamping maximum) and use the same DO-204AL through-hole package. The substitute offers enhanced specifications with higher peak pulse current (2.7A) and extended temperature range (-55°C to 175°C).

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

A: The primary differences are manufacturer origin, compliance certifications, and packaging format. The MP4KE110AE3 carries military qualification (MIL-PRF-19500) and bulk packaging, while the P4KE110A is RoHS3 compliant with tape and reel packaging. The P4KE110A also provides a wider operating temperature range and higher peak pulse current specification.

Q: Does the packaging format difference affect circuit performance?

A: No. Both parts use the identical DO-204AL (DO-41) axial through-hole package. The packaging format difference (bulk versus tape and reel) relates only to supply and assembly logistics, not electrical or mechanical performance in the circuit.

Q: Which part should be selected for high-temperature applications?

A: The P4KE110A supports operation up to 175°C junction temperature, compared to 150°C for the MP4KE110AE3. For applications requiring sustained operation above 150°C, the P4KE110A is the appropriate selection.

Q: Are there compliance or certification considerations when substituting?

A: Yes. The MP4KE110AE3 holds military qualification (MIL-PRF-19500) and is RoHS non-compliant. The P4KE110A is RoHS3 compliant but does not carry military certification. Select based on your application's regulatory and qualification requirements.

Q: Do the voltage protection thresholds remain identical between these parts?

A: Yes. Both parts maintain identical reverse standoff voltage (94V typical), breakdown voltage minimum (105V), and clamping voltage maximum (152V). Circuit protection performance is equivalent.