LCE10 Equivalent & Substitute Parts

Part Overview

The LCE10 is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. It features a 10V reverse standoff voltage with a maximum clamping voltage of 17.85V at peak pulse current and is housed in a DO-201 through-hole axial package. The LCE10 is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and component procurement.

Substiute Parts

LCE10

Littelfuse Inc.In Stock: 1034LCE10 Datasheet

Current PartRFQ

LCE10A

LittelfuseIn Stock: 2392LCE10A Datasheet

DirectRFQ

5KP10E3/TR13

Microchip TechnologyIn Stock: 7555KP10E3/TR13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LCE10 are qualified based on the following electrical and mechanical parameters:

• Reverse standoff voltage: 10V (matching specification)
• Unidirectional Zener diode type with single channel
• Through-hole axial package configuration
• Operating temperature range: -55°C to 175°C
• RoHS3 compliance and MSL 1 rating
• General-purpose overvoltage protection application class

Substitutes are grouped into two categories: direct pin-compatible replacements and functionally equivalent alternatives that may differ in peak pulse current and power dissipation ratings.

Parameter Comparison

Engineering Selection Recommendations

LCE10A is the primary direct substitute for the obsolete LCE10. Both parts share identical electrical ratings (10V standoff, 88A peak pulse current, 1500W peak power), matching package specifications (DO-201 axial), and operating temperature range. LCE10A maintains active product status with Littelfuse, ensuring long-term availability and supply chain continuity.

5KP10E3/TR13 is a functionally equivalent alternative from Microchip Technology with the same 10V standoff voltage and operating temperature range. This part features enhanced specifications with 266A peak pulse current and 5000W peak power dissipation, housed in a P600 axial package. Selection of 5KP10E3/TR13 is appropriate for applications requiring higher transient current handling or increased thermal margin, provided the P600 package footprint is compatible with the circuit board layout.

All three parts maintain ROHS3 compliance and MSL 1 rating, meeting environmental and reliability requirements for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can LCE10A be used as a direct replacement for LCE10?

A: Yes. LCE10A is a direct substitute with identical electrical specifications (10V standoff voltage, 88A peak pulse current, 1500W peak power) and matching DO-201 axial package configuration. The primary difference is product status: LCE10A is active, while LCE10 is obsolete.

Q: What is the difference between LCE10A and 5KP10E3/TR13?

A: Both parts share the same 10V reverse standoff voltage and operating temperature range. The 5KP10E3/TR13 provides higher peak pulse current (266A versus 88A) and peak power dissipation (5000W versus 1500W). The package differs: LCE10A uses DO-201, while 5KP10E3/TR13 uses P600. Selection depends on application current requirements and available board space.

Q: Are all substitute parts RoHS compliant?

A: Yes. LCE10, LCE10A, and 5KP10E3/TR13 are all ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level), meeting environmental and regulatory requirements.

Q: Does package size affect substitution compatibility?

A: Package compatibility depends on circuit board layout and mechanical constraints. LCE10 and LCE10A both use DO-201 axial packages and are mechanically interchangeable. The 5KP10E3/TR13 uses a P600 axial package, which may require board layout verification before substitution.

Q: What is the operating temperature range for these parts?

A: All three parts operate across -55°C to 175°C (junction temperature), suitable for industrial and commercial temperature environments.