LCE36A Equivalent & Substitute Parts

Part Overview

The LCE36A is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient voltage protection applications. This through-hole component operates with a 36V reverse standoff voltage and provides peak pulse power handling of 1500W. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified for applications requiring alternative packaging formats, higher power ratings, or different manufacturer sourcing while maintaining core electrical compatibility.

Substiute Parts

LCE36A

Littelfuse Inc.In Stock: 857LCE36A Datasheet

Current PartRFQ

5KP36A

Diotec SemiconductorIn Stock: 41685KP36A Datasheet

MFR RecommendedRFQ

5KP36A-TP

Micro Commercial CoIn Stock: 26415KP36A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LCE36A are qualified based on the following electrical and mechanical parameters:

• Voltage - Reverse Standoff: 36V (identical)
• Voltage - Breakdown (Min): 40V (identical)
• Voltage - Clamping (Max) @ Ipp: 58.1V (identical)
• Type: Zener, Unidirectional (identical)
• Mounting Type: Through Hole (identical)
• RoHS Status: ROHS3 Compliant (identical)

Substitutes may vary in:

• Current - Peak Pulse rating (equal or higher acceptable)
• Power - Peak Pulse rating (equal or higher acceptable)
• Package / Case format (alternative axial through-hole packages)
• Packaging format (Tape & Reel vs. Cut Tape)
• Operating temperature range (within specified limits)

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain identical voltage specifications (36V reverse standoff, 40V breakdown minimum, 58.1V clamping maximum) and are ROHS3 compliant, qualifying them as direct electrical substitutes for the LCE36A in general-purpose transient voltage suppression applications.

The 5KP36A (Diotec Semiconductor) and 5KP36A-TP (Micro Commercial Co) offer higher peak pulse power ratings (5000W versus 1500W), providing enhanced transient energy absorption capability. These substitutes are suitable for applications where the LCE36A inventory is unavailable or where higher power dissipation margins are required.

Package format differences exist: the LCE36A uses DO-201AA/DO-27 packaging, while substitutes employ P600 (Diotec) and R-6 (Micro Commercial Co) axial packages. Physical dimensions and PCB footprints will differ; mechanical verification is necessary during component integration.

Operating temperature ranges vary slightly: LCE36A operates -65°C to 175°C, while 5KP36A operates -50°C to 175°C and 5KP36A-TP operates -55°C to 175°C. Selection should account for application temperature requirements.

Frequently Asked Questions (FAQ)

Q: Can the 5KP36A and 5KP36A-TP be used as direct replacements for the LCE36A?

A: Yes, from an electrical standpoint. All three parts share identical voltage specifications (36V standoff, 40V breakdown, 58.1V clamping) and unidirectional zener topology. However, physical package differences (DO-201AA/DO-27 versus P600 or R-6) require mechanical verification and potential PCB layout modifications.

Q: What is the significance of the higher power ratings in the substitute parts?

A: The 5KP36A and 5KP36A-TP are rated for 5000W peak pulse power compared to the LCE36A's 1500W. This provides greater transient energy absorption capacity and may offer improved reliability margins in high-stress applications, though it does not change the voltage clamping characteristics.

Q: Are there packaging format considerations when selecting a substitute?

A: Yes. The LCE36A uses DO-201AA/DO-27 axial packages, while substitutes use P600 (Diotec) and R-6 (Micro Commercial Co) packages. These have different physical dimensions and lead configurations. PCB footprint compatibility must be verified before component substitution.

Q: Do all parts meet the same compliance standards?

A: Yes. The LCE36A, 5KP36A, and 5KP36A-TP are all ROHS3 compliant. The LCE36A and 5KP36A-TP are REACH unaffected, while the 5KP36A has REACH information available upon request.

Q: How do operating temperature ranges compare?

A: The LCE36A operates across -65°C to 175°C, providing the widest temperature range. The 5KP36A operates -50°C to 175°C, and the 5KP36A-TP operates -55°C to 175°C. Applications requiring operation below -50°C should use the LCE36A.

Q: What packaging formats are available for each part?

A: The LCE36A is supplied in Tape & Reel (TR) format. The 5KP36A is also supplied in Tape & Reel (TR). The 5KP36A-TP is supplied in Cut Tape (CT) format, suitable for lower-volume or manual assembly applications.