MP4KE16AE3 Equivalent & Substitute Parts

Part Overview

The MP4KE16AE3 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 863 units available in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring identical electrical and mechanical performance characteristics.

Substiute Parts

MP4KE16AE3

Microchip TechnologyIn Stock: 938MP4KE16AE3 Datasheet

Current PartRFQ

P4KE16A

Taiwan Semiconductor CorporationIn Stock: 966P4KE16A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MP4KE16AE3 are identified based on strict electrical and mechanical compatibility criteria. The primary substitution logic is based on the following key parameters:

Electrical Compatibility Requirements:

• Voltage - Reverse Standoff (Typ): 13.6V
• Voltage - Breakdown (Min): 15.2V
• Voltage - Clamping (Max) @ Ipp: 22.5V
• Current - Peak Pulse (10/1000µs): minimum 18A
• Power - Peak Pulse: 400W
• Type: Zener, Unidirectional
• Unidirectional Channels: 1

Mechanical Compatibility Requirements:

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

The P4KE16A from Taiwan Semiconductor Corporation meets all electrical and mechanical compatibility criteria and is classified as a direct substitute. This part maintains identical voltage specifications, exceeds the minimum peak pulse current requirement (18.6A vs. 18A), and shares the same package configuration and mounting type.

Parameter Comparison

Engineering Selection Recommendations

MP4KE16AE3 (Microchip Technology): This part is recommended for applications requiring military-grade qualification under MIL-PRF-19500. The component carries military-grade certification and operates across an extended lower temperature range (-65°C minimum). Select this part when military specifications or MIL-PRF-19500 compliance is a contractual or regulatory requirement. The part is currently active with adequate inventory availability (863 units).

P4KE16A (Taiwan Semiconductor Corporation): This part is recommended for commercial and industrial applications where RoHS3 compliance is required. The P4KE16A provides superior peak pulse current performance (18.6A vs. 18A) and an extended upper operating temperature range (175°C vs. 150°C). This substitute is suitable for applications where environmental compliance standards take precedence over military qualification. The part is currently active with strong inventory availability (886 units).

Selection Criteria:

• Choose MP4KE16AE3 for military-specification applications or when MIL-PRF-19500 certification is mandatory
• Choose P4KE16A for commercial applications requiring RoHS3 compliance or extended temperature performance
• Both parts are electrically and mechanically interchangeable for general-purpose transient voltage suppression applications
• Both parts maintain identical voltage clamping and breakdown characteristics

Frequently Asked Questions (FAQ)

Q: Can the P4KE16A directly replace the MP4KE16AE3 in existing designs?

A: Yes, the P4KE16A is electrically and mechanically compatible with the MP4KE16AE3. Both parts share identical voltage specifications (13.6V standoff, 15.2V breakdown, 22.5V clamping), the same DO-204AL (DO-41) package configuration, and through-hole mounting type. The P4KE16A exceeds the peak pulse current specification (18.6A vs. 18A) and operates across a wider temperature range (-55°C to 175°C vs. -65°C to 150°C).

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

A: The primary differences are manufacturer origin, compliance certifications, and operating temperature ranges. The MP4KE16AE3 carries military-grade qualification (MIL-PRF-19500) and operates from -65°C, while the P4KE16A is RoHS3 compliant and operates from -55°C to 175°C. Both parts deliver identical electrical performance for transient voltage suppression.

Q: Are there any package or pinout differences?

A: No. Both parts use the DO-204AL (DO-41) axial through-hole package with identical pinout and mechanical dimensions. They are pin-for-pin compatible and require no PCB layout modifications.

Q: Which part should I select for a new design?

A: For new commercial designs, the P4KE16A is recommended due to RoHS3 compliance and extended temperature range. For military or aerospace applications, the MP4KE16AE3 is required to meet MIL-PRF-19500 specifications. Verify your application's compliance requirements before final selection.

Q: Do both parts have the same power dissipation rating?

A: Yes. Both the MP4KE16AE3 and P4KE16A are rated for 400W peak pulse power dissipation under 10/1000µs pulse conditions.

Q: What is the moisture sensitivity level for these parts?

A: Both parts carry MSL 1 (Unlimited) moisture sensitivity level, indicating no moisture-related storage or handling restrictions.

Q: Are both parts currently in production?

A: Yes. Both the MP4KE16AE3 and P4KE16A are active products with current production status and adequate inventory availability.