LCE24A Equivalent & Substitute Parts

Part Overview

The LCE24A is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient protection applications. This through-hole component operates across a temperature range of -55°C to 175°C and maintains a reverse standoff voltage of 24V with a clamping voltage of 38.9V at peak pulse current. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified when electrical characteristics and mechanical compatibility align within the specified parameter tolerances for this TVS diode category.

Substiute Parts

LCE24A

Littelfuse Inc.In Stock: 1468LCE24A Datasheet

Current PartRFQ

5KP24A

Littelfuse Inc.In Stock: 38105KP24A Datasheet

MFR RecommendedRFQ

3KP24A-TP

Micro Commercial CoIn Stock: 16613KP24A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LCE24A are qualified based on the following critical parameters that determine functional equivalence:

• Voltage - Reverse Standoff (Typ): 24V
• Voltage - Clamping (Max) @ Ipp: 38.9V
• Voltage - Breakdown (Min): 26.7V
• Type: Zener, Unidirectional
• Mounting Type: Through Hole
• Operating Temperature Range: -55°C to 175°C
• RoHS Status: ROHS3 Compliant

The substitute parts 5KP24A and 3KP24A-TP maintain identical voltage specifications and temperature operating range. Both are through-hole mounted zener TVS diodes with unidirectional protection. Differences in peak pulse current and power dissipation ratings do not disqualify substitution when the application requirements fall within the specified limits of either substitute part.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active production status with ROHS3 compliance and REACH unaffected designation. The LCE24A, 5KP24A, and 3KP24A-TP are electrically equivalent for 24V transient suppression applications based on matching voltage specifications. Selection between these parts depends on application-specific peak pulse current and power dissipation requirements. The 5KP24A provides the highest power rating at 5000W, while the 3KP24A-TP offers 3000W capability. The LCE24A is rated for 1500W peak pulse power. Physical package differences (DO-201AA, P600, and R-6) must be verified for PCB layout compatibility and mechanical fit within the target application.

Frequently Asked Questions (FAQ)

Q: Can the 5KP24A replace the LCE24A in all applications?

A: The 5KP24A is electrically equivalent to the LCE24A for voltage protection specifications. However, the package differs (P600 versus DO-201AA). Physical compatibility with the PCB footprint and mechanical mounting must be confirmed before substitution.

Q: What is the primary difference between these substitute parts?

A: The primary differences are power dissipation ratings and package styles. The 5KP24A handles 5000W peak pulse power, the 3KP24A-TP handles 3000W, and the LCE24A handles 1500W. All maintain identical voltage protection characteristics at 24V standoff and 38.9V clamping.

Q: Are all three parts RoHS compliant?

A: Yes, all three parts are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Q: Does the manufacturer matter when selecting a substitute?

A: Both Littelfuse Inc. and Micro Commercial Co parts meet the same electrical and compliance specifications. Manufacturer selection may depend on supply chain availability, lead time, or organizational procurement policies.

Q: Can I use the 3KP24A-TP if peak pulse current specification is not provided?

A: The 3KP24A-TP is qualified as a substitute based on matching voltage specifications and 3000W power rating. The absence of peak pulse current data does not disqualify it when voltage protection requirements are the primary selection criterion.