MLCE10AE3 Equivalent & Substitute Parts

Part Overview

The MLCE10AE3 is a unidirectional Zener-type Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose transient voltage protection applications. This through-hole component features a 10V reverse standoff voltage with a 17V maximum clamping voltage and 88A peak pulse current capability. The device is classified as Active product status and carries Military grade qualification under MIL-PRF-19500. Substitute parts are identified to address packaging format preferences, compliance requirements, or inventory availability while maintaining electrical and mechanical compatibility.

Substiute Parts

MLCE10AE3

Microchip TechnologyIn Stock: 1165MLCE10AE3 Datasheet

Current PartRFQ

LCE10A

LittelfuseIn Stock: 2392LCE10A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MLCE10AE3 with equivalent TVS diodes is determined by strict electrical parameter matching across the following criteria:

Electrical Parameters (Must Match):

• Voltage - Reverse Standoff (Typ): 10V
• Voltage - Breakdown (Min): 11.1V
• Voltage - Clamping (Max) @ Ipp: 17V
• Current - Peak Pulse (10/1000µs): 88A
• Power - Peak Pulse: 1500W
• Type: Zener
• Unidirectional Channels: 1
• Applications: General Purpose

Mechanical Parameters (Must Match):

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

Allowed Variations:

• Packaging format (Bulk vs. Cut Tape)
• Operating temperature range (within functional limits)
• RoHS compliance status
• Capacitance specifications (when not provided in substitute)

The LCE10A from Littelfuse meets all mandatory electrical and mechanical parameters and is therefore classified as a direct equivalent substitute for the MLCE10AE3.

Parameter Comparison

Engineering Selection Recommendations

MLCE10AE3 (Microchip Technology):

• Primary selection for applications requiring Military grade qualification under MIL-PRF-19500
• Specified for systems with strict military or aerospace compliance mandates
• Bulk packaging suitable for high-volume manufacturing environments
• RoHS non-compliant status requires verification against end-product regulatory requirements

LCE10A (Littelfuse):

• Direct electrical and mechanical equivalent with identical TVS performance characteristics
• ROHS3 compliant, suitable for applications with RoHS compliance requirements
• Cut Tape packaging format appropriate for automated assembly and component handling systems
• Extended upper operating temperature limit (175°C vs. 150°C) provides additional thermal margin in high-temperature environments
• Active product status ensures continued availability and supply chain stability

Selection between these parts is determined by compliance requirements (Military qualification vs. RoHS compliance), packaging format needs (Bulk vs. Cut Tape), and thermal operating range specifications.

Frequently Asked Questions (FAQ)

Q: Can the LCE10A replace the MLCE10AE3 in all applications?

A: The LCE10A is electrically and mechanically equivalent to the MLCE10AE3 across all critical TVS parameters (voltage, current, power ratings, and package type). However, applications requiring Military grade qualification under MIL-PRF-19500 must retain the MLCE10AE3. Applications without military qualification requirements can use the LCE10A as a direct substitute.

Q: What is the difference between Bulk and Cut Tape packaging?

A: Bulk packaging supplies components in loose form, suitable for manual handling and high-volume manufacturing environments. Cut Tape packaging provides components on continuous tape, optimized for automated pick-and-place assembly equipment. Both formats contain identical components; the difference is in delivery and handling format only.

Q: Does the RoHS compliance difference affect electrical performance?

A: No. RoHS compliance status reflects manufacturing and material sourcing practices, not electrical performance. Both the MLCE10AE3 and LCE10A deliver identical TVS protection characteristics. RoHS compliance is a regulatory and supply chain consideration, not a performance factor.

Q: Are the operating temperature ranges compatible?

A: Both devices operate within overlapping temperature ranges. The MLCE10AE3 operates from -65°C to 150°C, while the LCE10A operates from -55°C to 175°C. For applications operating below -55°C or above 150°C, device selection must be verified against specific temperature requirements.

Q: Can these parts be used interchangeably in PCB designs?

A: Yes. Both parts use identical DO-201AA/DO-27 axial through-hole packages with the same pin spacing and lead configuration. PCB footprints designed for one part accommodate the other without modification.

Q: What inventory considerations apply to these substitutes?

A: The MLCE10AE3 has 1141 pieces in stock (Bulk packaging). The LCE10A has 2302 pieces in stock (Cut Tape packaging). Inventory availability may influence part selection based on project timelines and supply chain requirements.