MP6KE33CAE3 Equivalent & Substitute Parts

Part Overview

The MP6KE33CAE3 is a transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This bidirectional Zener-type TVS diode features a 28.2V reverse standoff voltage with a 45.7V maximum clamping voltage and 13.2A peak pulse current capability in a T-18 axial through-hole package. The component is qualified to MIL-PRF-19500 military standards and maintains active product status. Equivalent and substitute parts are identified to provide alternative sourcing options where component availability, packaging preferences, or compliance requirements necessitate alternative selection.

Substiute Parts

MP6KE33CAE3

Microchip TechnologyIn Stock: 714MP6KE33CAE3 Datasheet

Current PartRFQ

P6KE33CA

Diotec SemiconductorIn Stock: 9289P6KE33CA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MP6KE33CAE3 are identified based on electrical parameter equivalence within the TVS diode category. The substitution logic is based on the following critical parameters:

Electrical Equivalence Criteria:

• Voltage - Reverse Standoff (Typ): 28.2V
• Voltage - Breakdown (Min): 31.4V
• Voltage - Clamping (Max) @ Ipp: 45.7V
• Current - Peak Pulse (10/1000µs): 13.2A minimum
• Power - Peak Pulse: 600W
• Bidirectional Channels: 1
• Type: Zener

Mechanical Compatibility Criteria:

• Mounting Type: Through Hole
• Package Category: Axial

The P6KE33CA from Diotec Semiconductor meets these electrical parameters with equivalent voltage ratings and comparable peak pulse current (13.8A). Both components function as general-purpose TVS diodes with identical clamping and standoff voltage specifications. Package differences (T-18 versus DO-15) represent alternative through-hole axial configurations suitable for the same circuit protection function.

Parameter Comparison

Engineering Selection Recommendations

MP6KE33CAE3 (Microchip Technology):

• Primary selection for applications requiring MIL-PRF-19500 military qualification
• Suitable for designs with established T-18 package footprints
• Appropriate for applications where military-grade certification is mandatory
• Active product status ensures continued availability and support

P6KE33CA (Diotec Semiconductor):

• Equivalent electrical performance with identical voltage and power specifications
• Higher peak pulse current rating (13.8A versus 13.2A) provides additional margin
• Extended upper operating temperature limit (175°C versus 150°C) for high-temperature environments
• ROHS3 compliance for applications requiring environmental compliance standards
• DO-15 package offers alternative through-hole axial configuration
• Active product status with higher inventory availability (9278 pcs versus 661 pcs)

Selection between these components depends on specific application requirements regarding military qualification, package form factor, compliance certifications, and operating temperature range. Both components deliver equivalent electrical protection performance for general-purpose TVS applications.

Frequently Asked Questions (FAQ)

Q: Can the P6KE33CA directly replace the MP6KE33CAE3 in existing designs?

A: Electrical substitution is valid based on identical voltage ratings (28.2V standoff, 31.4V breakdown, 45.7V clamping) and equivalent power dissipation (600W). The P6KE33CA provides higher peak pulse current (13.8A versus 13.2A). Physical substitution requires verification of package compatibility; the P6KE33CA uses DO-15 (DO-204AC) packaging while the MP6KE33CAE3 uses T-18 packaging. Both are through-hole axial configurations and may require PCB layout adjustment.

Q: What are the key differences between T-18 and DO-15 packages?

A: Both T-18 and DO-15 are through-hole axial package formats for discrete diodes. Package differences affect PCB footprint dimensions and lead spacing. Component selection between these packages depends on existing PCB design and available mounting hole patterns. Electrical performance is equivalent.

Q: Does the P6KE33CA meet military qualification requirements?

A: The P6KE33CA does not carry MIL-PRF-19500 qualification. The MP6KE33CAE3 is qualified to this military standard. Applications requiring military-grade certification must use the MP6KE33CAE3.

Q: What is the significance of ROHS3 compliance on the P6KE33CA?

A: ROHS3 compliance indicates the P6KE33CA meets Restriction of Hazardous Substances Directive requirements, restricting specific hazardous materials in electrical and electronic equipment. The MP6KE33CAE3 is RoHS non-compliant. Component selection depends on regulatory requirements for the end application.

Q: Are there temperature range considerations for substitution?

A: The P6KE33CA operates across -50°C to 175°C, while the MP6KE33CAE3 operates across -65°C to 150°C. The P6KE33CA provides higher maximum temperature capability but lower minimum temperature rating. Application temperature requirements determine suitability.

Q: How do inventory levels affect component selection?

A: The P6KE33CA has significantly higher inventory availability (9278 pcs) compared to the MP6KE33CAE3 (661 pcs). For non-military applications where qualification is not required, the P6KE33CA may offer better supply chain reliability.