LCE10A-E3/73 Equivalent & Substitute Parts

Part Overview

The LCE10A-E3/73 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for general-purpose transient voltage protection applications, featuring a 10V reverse standoff voltage and 17V maximum clamping voltage. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

LCE10A-E3/73

Vishay General Semiconductor - Diodes DivisionIn Stock: 1092LCE10A-E3/73 Datasheet

Current PartRFQ

LCE10A

LittelfuseIn Stock: 2392LCE10A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LCE10A-E3/73 is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff: 10V (nominal)
• Voltage - Breakdown (Min): 11.1V
• Voltage - Clamping (Max) @ Ipp: 17V
• Current - Peak Pulse (10/1000µs): 88A
• Power - Peak Pulse: 1500W
• Unidirectional Channels: 1
• Mounting Type: Through Hole
• Package / Case: DO-201AA, DO-27, Axial

The LCE10A manufactured by Littelfuse meets all electrical specifications and mechanical requirements for direct substitution. Both components share identical voltage ratings, peak pulse current handling, and power dissipation characteristics. The primary difference is the operating temperature range and product status, with the Littelfuse variant currently in active production.

Parameter Comparison

Engineering Selection Recommendations

The LCE10A manufactured by Littelfuse is a direct electrical and mechanical equivalent to the obsolete LCE10A-E3/73. Both components satisfy identical functional requirements for 10V TVS diode applications with 88A peak pulse current handling and 1500W power dissipation.

Selection of the Littelfuse LCE10A is supported by:

• Active product status ensuring long-term availability and supply chain continuity
• Full compliance with ROHS3 and REACH regulatory requirements
• Identical electrical performance across all critical parameters
• Compatible through-hole DO-201AA packaging for direct board-level substitution
• Equivalent moisture sensitivity level (MSL 1 - Unlimited)

The operating temperature range of the Littelfuse variant (-55°C to 175°C) is narrower than the original Vishay component (-65°C to 175°C) by 10°C at the lower bound. This difference is relevant only for applications requiring operation below -55°C.

Frequently Asked Questions (FAQ)

Q: Can the LCE10A (Littelfuse) be used as a direct replacement for the LCE10A-E3/73 (Vishay)?

A: Yes. Both components are electrically and mechanically equivalent across all specified parameters: 10V reverse standoff voltage, 11.1V minimum breakdown voltage, 17V maximum clamping voltage, 88A peak pulse current, and 1500W power dissipation. The through-hole DO-201AA package is identical, enabling direct board-level substitution.

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

A: The Vishay LCE10A-E3/73 operates from -65°C to 175°C, while the Littelfuse LCE10A operates from -55°C to 175°C. The Littelfuse variant has a 10°C higher minimum operating temperature. This difference is significant only for applications requiring operation below -55°C.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the Vishay LCE10A-E3/73 and Littelfuse LCE10A are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.

Q: What packaging formats are available for these TVS diodes?

A: Both components are available in through-hole axial packages: DO-201AA and DO-27. These are identical mechanical formats suitable for through-hole PCB assembly.

Q: Why is the Vishay part listed as obsolete?

A: The LCE10A-E3/73 has been discontinued by Vishay General Semiconductor. The Littelfuse LCE10A remains in active production, providing a current-generation alternative with identical electrical specifications.