LCE8.0-B Equivalent & Substitute Parts

Part Overview

The LCE8.0-B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for telecom applications. This component features an 8V reverse standoff voltage with a 13.6V maximum clamping voltage and 100A peak pulse current capability in a DO-201 axial package format. The LCE8.0-B is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure ongoing component availability for new production and field replacements.

Substiute Parts

LCE8.0-B

Littelfuse Inc.In Stock: 1142LCE8.0-B Datasheet

Current PartRFQ

LCE8.0A

LittelfuseIn Stock: 1165LCE8.0A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LCE8.0-B is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications for voltage ratings (reverse standoff, breakdown, and clamping voltages), peak pulse current, power dissipation, operating temperature range, and package configuration. The LCE8.0A qualifies as a direct substitute because it matches all these parameters exactly while offering the advantage of active product status and improved compliance certifications. The primary distinction between the main part and its substitute is packaging format (bulk versus tape & reel) and product lifecycle status, not electrical performance.

Parameter Comparison

Engineering Selection Recommendations

The LCE8.0A is the direct equivalent substitute for the obsolete LCE8.0-B. Both components are manufactured by Littelfuse within the LCE series and provide identical electrical performance across all critical parameters including voltage ratings, current handling, and thermal operating range. The LCE8.0A offers the strategic advantage of active product status, ensuring long-term availability and supply chain continuity. Additionally, the LCE8.0A carries ROHS3 compliance certification, representing an enhanced regulatory posture compared to the standard RoHS compliance of the original part. For applications requiring through-hole mounting in tape & reel packaging format, the LCE8.0A is the appropriate selection. The electrical and thermal characteristics remain unchanged, permitting direct substitution in existing circuit designs without modification to PCB layouts or component footprints.

Frequently Asked Questions (FAQ)

Q: Can the LCE8.0A be used as a direct replacement for the LCE8.0-B in existing designs?

A: Yes. The LCE8.0A provides identical electrical specifications across all critical parameters: 8V reverse standoff voltage, 13.6V maximum clamping voltage, 100A peak pulse current, 1500W peak pulse power, and -55°C to 175°C operating temperature range. Both components use the DO-201 axial package configuration. Direct substitution is permissible without circuit redesign.

Q: What is the primary difference between the LCE8.0-B and LCE8.0A?

A: The LCE8.0-B is classified as obsolete, while the LCE8.0A maintains active product status. The LCE8.0A is supplied in tape & reel packaging format, whereas the LCE8.0-B was supplied in bulk packaging. The LCE8.0A also carries ROHS3 compliance certification. Electrical performance is identical.

Q: Are there packaging considerations when substituting the LCE8.0A for the LCE8.0-B?

A: The LCE8.0A is supplied in tape & reel (TR) format, which is standard for automated assembly processes. If manual assembly or bulk component handling is required, tape & reel packaging may necessitate reel-to-bulk conversion. The physical component dimensions and DO-201 axial lead configuration remain unchanged, ensuring compatibility with existing PCB footprints.

Q: Does the LCE8.0A meet current regulatory compliance requirements?

A: Yes. The LCE8.0A is ROHS3 compliant and REACH unaffected, meeting current regulatory standards for electronic components. The original LCE8.0-B was RoHS compliant but did not carry ROHS3 or REACH certifications.

Q: What applications are supported by the LCE8.0A?

A: The LCE8.0A is rated for general purpose applications. The original LCE8.0-B was specifically designated for telecom applications. The electrical specifications support both application categories without limitation.