MP6KE9.1AE3 Equivalent & Substitute Parts

Part Overview

The MP6KE9.1AE3 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose transient protection applications. This component features a 7.78V reverse standoff voltage, 13.4V maximum clamping voltage, and 45A peak pulse current capability in a T-18 axial through-hole package. The device is qualified to MIL-PRF-19500 military standards and operates across the temperature range of -65°C to 150°C. The MP6KE9.1AE3 maintains active product status with 1047 units currently in stock. Equivalent and substitute parts are identified based on matching electrical performance parameters, mechanical compatibility, and functional equivalence within the TVS diode category.

Substiute Parts

MP6KE9.1AE3

Microchip TechnologyIn Stock: 1091MP6KE9.1AE3 Datasheet

Current PartRFQ

P6KE9.1A

Taiwan Semiconductor CorporationIn Stock: 300384P6KE9.1A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MP6KE9.1AE3 are identified based on electrical parameter equivalence within the TVS diode category. The primary substitution criteria include:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 7.78V
• Voltage - Breakdown (Min): 8.65V
• Voltage - Clamping (Max) @ Ipp: 13.4V
• Power - Peak Pulse: 600W
• Type: Zener, Unidirectional
• Unidirectional Channels: 1
• Mounting Type: Through Hole

Secondary Compatibility Factors:

• Current - Peak Pulse (10/1000µs): Minimum 45A
• Operating Temperature Range: Functional overlap with primary device
• Package / Case: Axial through-hole configurations

The P6KE9.1A from Taiwan Semiconductor Corporation qualifies as a substitute based on identical voltage parameters, matching power dissipation capability, and compatible through-hole axial packaging. Both devices operate as unidirectional Zener TVS diodes with single-channel configuration and general-purpose application suitability.

Parameter Comparison

Engineering Selection Recommendations

MP6KE9.1AE3 (Primary Component): The MP6KE9.1AE3 is recommended for applications requiring MIL-PRF-19500 military qualification and military-grade certification. This component is suitable for defense, aerospace, and high-reliability applications where military standards compliance is mandatory. The device operates across an extended lower temperature range (-65°C minimum) and maintains active product status with established supply availability.

P6KE9.1A (Substitute Component): The P6KE9.1A serves as an electrical equivalent for general-purpose applications where military qualification is not required. This substitute offers ROHS3 compliance, making it suitable for commercial and industrial applications with environmental regulatory requirements. The extended upper operating temperature range (-55°C to 175°C) provides thermal margin for high-temperature environments. The P6KE9.1A demonstrates superior inventory availability (300,300 units) compared to the primary component.

Selection Criteria:

• Choose MP6KE9.1AE3 for military-qualified applications and MIL-PRF-19500 compliance requirements
• Choose P6KE9.1A for commercial applications, RoHS3 compliance requirements, and high-temperature operation
• Both components are electrically equivalent for transient suppression performance
• Package form factor differences (T-18 versus DO-204AC) require PCB layout verification

Frequently Asked Questions (FAQ)

Q: Are the MP6KE9.1AE3 and P6KE9.1A electrically interchangeable?

A: Yes, both components are electrically equivalent. They share identical voltage parameters (7.78V reverse standoff, 8.65V breakdown minimum, 13.4V clamping maximum) and identical 600W peak pulse power rating. The P6KE9.1A provides slightly higher peak pulse current (47A versus 45A), which is compatible with the primary device specification.

Q: What is the difference in package form between these components?

A: The MP6KE9.1AE3 uses a T-18 axial package, while the P6KE9.1A uses a DO-204AC (DO-15) axial package. Both are through-hole axial configurations, but physical dimensions differ. PCB layout and footprint verification is required before substitution.

Q: Can the P6KE9.1A replace the MP6KE9.1AE3 in military applications?

A: No. The MP6KE9.1AE3 holds MIL-PRF-19500 military qualification and military-grade certification. The P6KE9.1A does not carry military qualification. Military applications requiring MIL-PRF-19500 compliance must use the MP6KE9.1AE3.

Q: What are the operating temperature differences?

A: The MP6KE9.1AE3 operates from -65°C to 150°C, while the P6KE9.1A operates from -55°C to 175°C. The P6KE9.1A provides extended high-temperature capability. For applications below -55°C, the MP6KE9.1AE3 is required.

Q: How do RoHS compliance statuses affect component selection?

A: The MP6KE9.1AE3 is RoHS non-compliant, while the P6KE9.1A is ROHS3 compliant. Applications subject to RoHS3 environmental regulations must use the P6KE9.1A. Commercial and industrial applications with RoHS requirements cannot use the MP6KE9.1AE3.

Q: Are both components suitable for general-purpose transient protection?

A: Yes. Both the MP6KE9.1AE3 and P6KE9.1A are classified for general-purpose applications. They function identically as unidirectional Zener TVS diodes for transient voltage suppression across the specified voltage and current parameters.

Q: What inventory considerations exist between these components?

A: The MP6KE9.1AE3 has 1,047 units in stock, while the P6KE9.1A has 300,300 units available. The P6KE9.1A offers significantly higher inventory availability for applications without military qualification requirements.