MP6KE12CAE3 Equivalent & Substitute Parts

Part Overview

The MP6KE12CAE3 is a transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This bidirectional Zener diode operates with a reverse standoff voltage of 10.2V and provides clamping at 16.7V maximum, with a peak pulse current rating of 36A. The device is housed in a T-18 axial through-hole package and is qualified to MIL-PRF-19500 military standards. The part is currently active in production with 1013 units in stock. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when specific packaging or compliance requirements necessitate component substitution.

Substiute Parts

MP6KE12CAE3

Microchip TechnologyIn Stock: 1031MP6KE12CAE3 Datasheet

Current PartRFQ

P6KE12CA

Taiwan Semiconductor CorporationIn Stock: 25662P6KE12CA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MP6KE12CAE3 is determined by electrical and mechanical parameter equivalence. The primary substitution criterion is the base product number P6KE12, which establishes the core electrical specifications: 10.2V reverse standoff voltage, 11.4V minimum breakdown voltage, 16.7V maximum clamping voltage, and 36A peak pulse current capability. All substitute parts must maintain these electrical parameters to ensure functional compatibility within the protected circuit.

Secondary substitution criteria include:

• Bidirectional Channels: Must equal 1
• Type: Must be Zener
• Mounting Type: Must be Through Hole
• Peak Pulse Current: Must equal 36A
• Clamping Voltage: Must equal 16.7V maximum

Package configuration (T-18 versus DO-15) represents a mechanical substitution consideration. While both are through-hole axial packages, physical dimensions and PCB footprint compatibility must be verified during component selection. The P6KE12CA substitute part uses a DO-15 package instead of the T-18 package of the main part.

Parameter Comparison

Engineering Selection Recommendations

MP6KE12CAE3 (Primary Part)

The MP6KE12CAE3 is the primary component specification and is recommended for applications requiring MIL-PRF-19500 military qualification. This part is manufactured by Microchip Technology and is actively produced. The T-18 axial package provides a standard through-hole footprint for military and aerospace applications. The part is RoHS non-compliant, which may be a requirement for certain legacy or military systems. Current inventory of 1013 units supports immediate availability.

P6KE12CA (Substitute Part)

The P6KE12CA is electrically equivalent to the MP6KE12CAE3, sharing identical voltage and current specifications. This part is manufactured by Taiwan Semiconductor Corporation and is supplied in a DO-15 axial through-hole package. The primary distinction is RoHS3 compliance, making this substitute suitable for applications with RoHS regulatory requirements. The DO-15 package is mechanically compatible with standard through-hole PCB layouts, though physical dimensions differ from the T-18 package. Inventory availability is significantly higher at 25610 units. This substitute is appropriate when RoHS compliance is mandated and military qualification is not required.

Frequently Asked Questions (FAQ)

Q: Can the P6KE12CA directly replace the MP6KE12CAE3 in all applications?

A: The P6KE12CA is electrically equivalent and functionally interchangeable in circuits where the electrical specifications (10.2V standoff, 16.7V clamping, 36A peak pulse) are the primary design criteria. However, the package change from T-18 to DO-15 requires PCB footprint verification. Additionally, if MIL-PRF-19500 military qualification is a design requirement, the MP6KE12CAE3 must be used, as the P6KE12CA does not carry this certification.

Q: What is the significance of the package difference between T-18 and DO-15?

A: Both T-18 and DO-15 are axial through-hole packages with two leads. The T-18 package is a larger diameter package, while DO-15 (DO-204AC) is a smaller diameter package. Both are suitable for through-hole PCB assembly, but the physical dimensions and lead spacing differ. PCB layout and component placement must be verified to ensure mechanical compatibility.

Q: Why is RoHS compliance different between these parts?

A: The MP6KE12CAE3 is RoHS non-compliant, while the P6KE12CA is ROHS3 compliant. This reflects different manufacturing processes and material sourcing by Microchip Technology and Taiwan Semiconductor Corporation. Applications subject to RoHS regulations (such as consumer electronics in the European Union) require the ROHS3-compliant P6KE12CA. Legacy or military applications may specifically require the RoHS non-compliant version.

Q: Are the operating temperature ranges equivalent?

A: The MP6KE12CAE3 specifies an operating temperature range of -65°C to 150°C (TJ). The P6KE12CA does not provide an explicit operating temperature range in the available data. For applications requiring operation across the full -65°C to 150°C range, the MP6KE12CAE3 is the specified part. For applications within standard industrial temperature ranges, the P6KE12CA is suitable.

Q: What does the base product number P6KE12 indicate?

A: The base product number P6KE12 identifies the core electrical specification family. All parts sharing this base number have identical voltage and current ratings: 10.2V reverse standoff, 11.4V breakdown minimum, 16.7V clamping maximum, and 36A peak pulse current. Variations in the full part number (such as MP6KE12CAE3 versus P6KE12CA) indicate differences in manufacturer, package, or qualification level, but not in electrical performance.

Q: Can these parts be used interchangeably in military applications?

A: No. The MP6KE12CAE3 carries MIL-PRF-19500 military qualification, while the P6KE12CA does not. Military applications requiring this qualification must use the MP6KE12CAE3. The P6KE12CA is suitable for commercial and industrial applications.

Q: What inventory considerations should guide part selection?

A: The MP6KE12CAE3 has 1013 units in stock, while the P6KE12CA has 25610 units available. For applications without strict qualification requirements, the P6KE12CA offers significantly higher inventory availability and shorter lead times. For applications requiring military qualification or the specific T-18 package, the MP6KE12CAE3 must be selected despite lower inventory levels.