M5KP6.5AE3 Equivalent & Substitute Parts

Part Overview

The M5KP6.5AE3 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This component features a 6.5V reverse standoff voltage with an 11.2V maximum clamping voltage and peak pulse current handling of 447A at 5000W peak pulse power. The device is housed in a DO-204AR axial through-hole package and operates across a temperature range of -65°C to 150°C. The M5KP6.5AE3 maintains active product status and carries military-grade qualification under MIL-PRF-19500. Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, and support alternative packaging or compliance requirements.

Substiute Parts

M5KP6.5AE3

Microchip TechnologyIn Stock: 918M5KP6.5AE3 Datasheet

Current PartRFQ

5KP6.5A

Littelfuse Inc.In Stock: 26955KP6.5A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the M5KP6.5AE3 is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - Reverse Standoff (Typ): 6.5V
• Voltage - Breakdown (Min): 7.22V
• Voltage - Clamping (Max) @ Ipp: 11.2V
• Current - Peak Pulse (10/1000µs): 447A minimum
• Power - Peak Pulse: 5000W (5kW)
• Unidirectional Channels: 1
• Type: Zener

Mechanical Equivalence Criteria:

• Mounting Type: Through Hole
• Package / Case: Axial configuration

The substitute part 5KP6.5A, manufactured by Littelfuse Inc., meets all electrical parameters within acceptable tolerance and maintains identical mechanical mounting characteristics. The 5KP6.5A operates at a higher peak pulse current (455.4A) and extended upper operating temperature (175°C vs. 150°C), providing equivalent or superior performance in the specified application envelope.

Parameter Comparison

Engineering Selection Recommendations

M5KP6.5AE3 (Microchip Technology):

• Select when military-grade qualification under MIL-PRF-19500 is a mandatory design requirement
• Appropriate for applications requiring bulk packaging and direct inventory management
• Maintains active product status with established supply chain availability (869 pcs in stock)
• RoHS non-compliant status requires verification against end-product regulatory requirements

5KP6.5A (Littelfuse Inc.):

• Select when RoHS3 compliance is required for end-product certification
• Suitable for high-volume production requiring tape and reel packaging format
• Extended upper operating temperature rating (175°C) provides thermal margin for elevated ambient or self-heating conditions
• Higher peak pulse current rating (455.4A) offers performance headroom beyond minimum specification
• Active product status with robust supply availability (2600 pcs in stock)

Both parts are active products with equivalent electrical performance. Selection between them depends on regulatory compliance requirements (military qualification vs. RoHS3), packaging format preference (bulk vs. tape & reel), and thermal operating envelope constraints.

Frequently Asked Questions (FAQ)

Q: Can the 5KP6.5A directly replace the M5KP6.5AE3 in existing designs?

A: Yes. The 5KP6.5A meets all critical electrical parameters (voltage standoff, breakdown, clamping, and peak pulse current) and maintains identical through-hole axial mounting. The higher peak pulse current (455.4A vs. 447A) and extended upper temperature rating (175°C vs. 150°C) provide equivalent or superior performance. Verify that RoHS3 compliance aligns with your end-product requirements, as the M5KP6.5AE3 is RoHS non-compliant.

Q: What is the difference between DO-204AR and P600 package designations?

A: Both designations refer to equivalent axial through-hole packages used for TVS diodes. DO-204AR is the JEDEC designation used by Microchip Technology; P600 is the Littelfuse equivalent designation. The physical form factor and pin spacing are compatible for direct board-level substitution.

Q: Are there temperature operating range differences that affect circuit performance?

A: The M5KP6.5AE3 operates from -65°C to 150°C, while the 5KP6.5A operates from -55°C to 175°C. The 5KP6.5A provides a 25°C higher upper temperature limit, which is beneficial in high-temperature environments. The lower temperature limit difference (-65°C vs. -55°C) is typically not a constraint for most industrial and commercial applications.

Q: What packaging format should I specify for production procurement?

A: The M5KP6.5AE3 is supplied in bulk packaging, suitable for manual assembly or small-batch operations. The 5KP6.5A is supplied in tape and reel (TR) format, optimized for automated pick-and-place assembly and high-volume production. Select based on your manufacturing process and volume requirements.

Q: Does the higher peak pulse current of the 5KP6.5A (455.4A vs. 447A) affect circuit design?

A: No. The higher peak pulse current represents improved performance margin and does not require circuit redesign. The clamping voltage (11.2V) and power dissipation (5000W) remain identical, ensuring equivalent protection characteristics in the application circuit.

Q: What compliance certifications apply to each part?

A: The M5KP6.5AE3 carries military-grade qualification under MIL-PRF-19500 and is RoHS non-compliant. The 5KP6.5A is ROHS3 compliant. Select based on your end-product regulatory requirements. Military applications typically require the M5KP6.5AE3; commercial products with RoHS mandates require the 5KP6.5A.