MLCE6.5AE3 Equivalent & Substitute Parts

Part Overview

The MLCE6.5AE3 is a unidirectional Zener-type transient voltage suppressor (TVS) diode manufactured by Microchip Technology. This through-hole component is designed for general-purpose transient voltage protection applications, featuring a 6.5V reverse standoff voltage and 11.2V maximum clamping voltage at peak pulse current. The device is qualified to MIL-PRF-19500 military standards and is currently in active production status with 1057 units in stock.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across different manufacturers while meeting application requirements.

Substiute Parts

MLCE6.5AE3

Microchip TechnologyIn Stock: 1079MLCE6.5AE3 Datasheet

Current PartRFQ

LCE6.5A

Littelfuse Inc.In Stock: 1150LCE6.5A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MLCE6.5AE3 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): 100A
• Power - Peak Pulse: 1500W
• Type: Zener
• Unidirectional Channels: 1

Mechanical Compatibility Criteria:

• Mounting Type: Through Hole
• Package / Case: DO-201AA, DO-27, Axial

The LCE6.5A manufactured by Littelfuse Inc. meets all electrical equivalence requirements and maintains mechanical compatibility through identical through-hole mounting and axial package configuration. Both devices are classified as general-purpose TVS diodes with identical voltage and current ratings.

Parameter Comparison

*Operating temperature range: LCE6.5A supports extended upper temperature limit (175°C vs. 150°C) and higher lower temperature limit (-55°C vs. -65°C). The LCE6.5A range encompasses the MLCE6.5AE3 range for temperatures above -55°C and below 150°C.

Engineering Selection Recommendations

MLCE6.5AE3 (Primary Part):

• Microchip Technology manufacturer
• MIL-PRF-19500 military qualification
• Military-grade classification
• RoHS non-compliant status
• Operating temperature range: -65°C to 150°C
• Suitable for applications requiring military-grade certification and extended low-temperature operation

LCE6.5A (Substitute Part):

• Littelfuse Inc. manufacturer
• ROHS3 compliant
• Active product status
• Operating temperature range: -55°C to 175°C
• Suitable for applications requiring RoHS compliance and extended high-temperature operation
• Equivalent electrical performance across all critical TVS parameters

Selection between these parts depends on compliance requirements and operating temperature specifications. Both devices provide identical transient voltage suppression performance within their respective temperature operating ranges.

Frequently Asked Questions (FAQ)

Q: Can the LCE6.5A directly replace the MLCE6.5AE3 in all applications?

A: The LCE6.5A provides electrical equivalence across all critical TVS parameters (voltage ratings, peak pulse current, and power dissipation). Direct replacement is valid for applications operating between -55°C and 150°C. Applications requiring operation below -55°C or military-grade certification require the MLCE6.5AE3.

Q: What is the difference in RoHS compliance between these parts?

A: The MLCE6.5AE3 is RoHS non-compliant, while the LCE6.5A is ROHS3 compliant. Applications subject to RoHS regulations must use the LCE6.5A. Applications without RoHS requirements can use either part.

Q: Are the packages physically identical?

A: Both parts use DO-201AA, DO-27, and axial through-hole packages. Physical dimensions and pin configurations are compatible for PCB mounting and circuit board layout purposes.

Q: What is the operating temperature difference between these parts?

A: The MLCE6.5AE3 operates from -65°C to 150°C, while the LCE6.5A operates from -55°C to 175°C. The LCE6.5A provides a 25°C higher upper temperature limit and a 10°C higher lower temperature limit. Applications requiring operation below -55°C must use the MLCE6.5AE3.

Q: Do these parts have identical electrical performance?

A: Yes. Both devices have identical reverse standoff voltage (6.5V), breakdown voltage (7.22V minimum), clamping voltage (11.2V maximum), peak pulse current (100A), and peak pulse power (1500W). Electrical performance is equivalent for transient voltage suppression applications.

Q: What is the difference in packaging between these parts?

A: The MLCE6.5AE3 is supplied in bulk packaging, while the LCE6.5A is supplied in cut tape (CT) packaging. Both use identical component packages (DO-201AA, DO-27, Axial). Packaging format affects order quantity and handling but not electrical or mechanical compatibility.