MP6KE15AE3 Equivalent & Substitute Parts

Part Overview

The MP6KE15AE3 is an active-status Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology. This unidirectional zener-type device provides transient overvoltage protection in general-purpose applications through a through-hole T-18 axial package. The device operates across a junction temperature range of -65°C to 150°C and meets MIL-PRF-19500 military qualification standards.

Equivalent and substitute parts are identified to address inventory availability, supply chain continuity, and application-specific packaging or performance requirements while maintaining electrical and mechanical compatibility within specified parameter tolerances.

Substiute Parts

MP6KE15AE3

Microchip TechnologyIn Stock: 1190MP6KE15AE3 Datasheet

Current PartRFQ

P6KE15A

Fairchild SemiconductorIn Stock: 35449P6KE15A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MP6KE15AE3 is determined by equivalence across the following critical electrical parameters:

• Voltage - Reverse Standoff (Typ): 12.8V
• Voltage - Breakdown (Min): 14.3V
• Voltage - Clamping (Max) @ Ipp: 21.2V
• Current - Peak Pulse (10/1000µs): minimum 28A
• Power - Peak Pulse: 600W
• Type: Zener, Unidirectional
• Mounting Type: Through Hole, Axial

The P6KE15A from Fairchild Semiconductor meets all specified electrical parameters and operates within compatible temperature and mechanical constraints. Both devices function as general-purpose TVS diodes with identical voltage ratings and clamping characteristics. Package differences (T-18 versus DO-15/DO-204AC) represent alternative through-hole axial configurations suitable for equivalent circuit board integration.

Parameter Comparison

Engineering Selection Recommendations

MP6KE15AE3 (Microchip Technology)

Select this part when MIL-PRF-19500 military qualification compliance is a circuit design requirement. The device maintains active product status with established supply availability (1174 pcs in stock). The T-18 axial package provides standard through-hole mounting compatibility. Operating temperature range of -65°C to 150°C supports military-grade applications. RoHS non-compliance status must be evaluated against end-product regulatory requirements.

P6KE15A (Fairchild Semiconductor)

Select this substitute when equivalent electrical performance is required with alternative package geometry. The P6KE15A delivers identical voltage ratings and clamping characteristics with marginally higher peak pulse current capability (29A versus 28A). The DO-15 (DO-204AC) axial package accommodates through-hole board layouts with different lead spacing or footprint requirements. Extended operating temperature range (-50°C to 175°C) provides thermal margin for elevated-temperature environments. Higher inventory availability (35400 pcs) supports rapid procurement. Military qualification status is not specified for this substitute.

Both devices carry identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications, confirming regulatory equivalence for export and tariff purposes.

Frequently Asked Questions (FAQ)

Q: Can the P6KE15A directly replace the MP6KE15AE3 in existing circuit designs?

A: Electrical substitution is valid. Both devices meet identical voltage specifications (12.8V standoff, 14.3V breakdown, 21.2V clamping) and current ratings (28A minimum). Physical substitution requires verification of board-level footprint compatibility between T-18 and DO-15 axial packages. Lead spacing and mounting hole diameter differences may necessitate PCB layout modification.

Q: What is the significance of the 1A difference in peak pulse current (28A versus 29A)?

A: The P6KE15A specification of 29A exceeds the MP6KE15AE3 requirement of 28A. This represents a 3.6% margin and does not restrict substitution. The substitute device provides equivalent or superior transient suppression capability within the same voltage clamping window.

Q: Does the operating temperature range difference affect substitution suitability?

A: The P6KE15A operating range (-50°C to 175°C) encompasses the MP6KE15AE3 range (-65°C to 150°C) except at the lower extreme. For applications requiring operation below -50°C, the MP6KE15AE3 is required. For standard industrial and commercial temperature ranges, the P6KE15A is suitable.

Q: Is military qualification a mandatory substitution criterion?

A: Military qualification (MIL-PRF-19500) is specific to the MP6KE15AE3. If circuit design specifications explicitly require MIL-PRF-19500 compliance, the P6KE15A substitute does not satisfy this requirement. Verify design documentation and procurement specifications before substitution.

Q: How do the different package designations (T-18 versus DO-15) affect circuit board integration?

A: Both T-18 and DO-15 are through-hole axial packages with different physical dimensions and lead configurations. Substitution requires confirmation that the target PCB footprint accommodates the substitute package geometry. Lead diameter, spacing, and overall length must be verified against board design files.

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

A: Both devices carry identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications. RoHS compliance status differs: MP6KE15AE3 is RoHS non-compliant; P6KE15A status is not specified in provided data. Evaluate end-product RoHS requirements independently.