MP6KE7.5AE3 Equivalent & Substitute Parts

Part Overview

The MP6KE7.5AE3 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose transient protection applications. This component features a 6.4V reverse standoff voltage with an 11.3V maximum clamping voltage and 53A 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 an extended temperature range of -65°C to 150°C. Identification of equivalent substitute parts is necessary when the original component becomes unavailable, when alternative packaging formats are required, or when compliance with specific regulatory standards is mandated for system integration.

Substiute Parts

MP6KE7.5AE3

Microchip TechnologyIn Stock: 766MP6KE7.5AE3 Datasheet

Current PartRFQ

P6KE7.5A

Taiwan Semiconductor CorporationIn Stock: 7748P6KE7.5A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MP6KE7.5AE3 is determined by electrical and mechanical parameter equivalence within the TVS diode category. The critical parameters governing substitution are:

Electrical Parameters:

• Voltage - Reverse Standoff (Typ): 6.4V
• Voltage - Breakdown (Min): 7.13V
• Voltage - Clamping (Max) @ Ipp: 11.3V
• Current - Peak Pulse (10/1000µs): minimum 53A
• Power - Peak Pulse: 600W
• Type: Zener, Unidirectional (1 channel)

Mechanical Parameters:

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

The substitute part P6KE7.5A, manufactured by Taiwan Semiconductor Corporation, meets all critical electrical parameters with equivalent or superior performance (55A peak pulse current versus 53A). Both components operate as unidirectional Zener TVS diodes with identical voltage ratings and power dissipation capability. The primary difference is the package format: the substitute uses DO-204AC (DO-15) axial packaging instead of T-18 axial packaging, both of which are through-hole configurations suitable for PCB integration.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: MP6KE7.5AE3

The MP6KE7.5AE3 remains the primary component choice when MIL-PRF-19500 military qualification is a system requirement. This device is actively manufactured and maintains military-grade certification. The T-18 axial package is standard for legacy military and aerospace applications. Selection of this component is appropriate for systems with established PCB layouts, existing inventory management protocols, or explicit military specification mandates.

Substitute Selection: P6KE7.5A

The P6KE7.5A is a functionally equivalent substitute when the following conditions are met:

1. Regulatory Compliance: Systems requiring ROHS3 compliance must use the P6KE7.5A, as the MP6KE7.5AE3 is RoHS non-compliant.

2. Package Compatibility: The DO-204AC (DO-15) axial package must be accommodated within the PCB design. Both packages are through-hole axial configurations with compatible lead spacing for standard 0.3-inch pitch breadboards and PCB layouts.

3. Temperature Operating Range: The P6KE7.5A supports an extended upper operating temperature of 175°C (versus 150°C for the MP6KE7.5AE3), providing additional thermal margin in high-temperature environments.

4. Performance Margin: The P6KE7.5A delivers 55A peak pulse current, exceeding the 53A specification of the MP6KE7.5AE3, providing a 3.8% performance margin.

Both components are actively manufactured and maintain equivalent electrical performance across all critical TVS diode parameters.

Frequently Asked Questions (FAQ)

Q: Can the P6KE7.5A be used as a direct replacement for the MP6KE7.5AE3 in existing designs?

A: Electrical substitution is direct and complete. The P6KE7.5A meets or exceeds all electrical specifications. Physical substitution requires verification that the DO-204AC (DO-15) axial package footprint is compatible with the existing PCB layout. Both packages use standard 0.3-inch pitch through-hole mounting, but lead diameter and package length may differ. PCB layout review is necessary before implementation.

Q: What is the difference between T-18 and DO-204AC (DO-15) packages?

A: Both are axial through-hole packages for TVS diodes. T-18 is a legacy military designation, while DO-204AC (DO-15) is the commercial equivalent designation. The packages may have different physical dimensions and lead gauges. Consult manufacturer datasheets for precise mechanical specifications before PCB redesign.

Q: Does the P6KE7.5A meet military specifications?

A: The P6KE7.5A is not qualified to MIL-PRF-19500. If military qualification is a system requirement, the MP6KE7.5AE3 must be used. The P6KE7.5A is suitable for commercial and industrial applications requiring ROHS3 compliance.

Q: Are the voltage ratings identical between these two parts?

A: Yes. Both components have identical reverse standoff voltage (6.4V), breakdown voltage (7.13V), and clamping voltage (11.3V). Electrical performance in transient suppression circuits is equivalent.

Q: What is the significance of the higher peak pulse current in the P6KE7.5A?

A: The P6KE7.5A is rated for 55A peak pulse current compared to 53A for the MP6KE7.5AE3. This represents a 3.8% performance margin and indicates the substitute component can handle slightly higher transient current levels while maintaining the same clamping voltage. Both components are suitable for identical circuit applications.

Q: Can I use the MP6KE7.5AE3 in applications requiring ROHS3 compliance?

A: No. The MP6KE7.5AE3 is RoHS non-compliant. Systems with ROHS3 compliance mandates must use the P6KE7.5A or identify an alternative compliant component.

Q: What is the inventory status of these components?

A: The MP6KE7.5AE3 has 717 pieces in stock. The P6KE7.5A has 7700 pieces in stock, providing significantly greater availability for high-volume applications.