LCE48A-B Equivalent & Substitute Parts

Part Overview

The LCE48A-B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient protection applications. This through-hole component operates with a 48V reverse standoff voltage and provides peak pulse current handling of 19.4A with a maximum clamping voltage of 77.4V. The part is currently in active production status and maintains full RoHS3 compliance. Substitute parts are identified when packaging configurations differ or when inventory availability requires alternative sourcing while maintaining identical electrical performance specifications.

Substiute Parts

LCE48A-B

Littelfuse Inc.In Stock: 703LCE48A-B Datasheet

Current PartRFQ

LCE48A

Littelfuse Inc.In Stock: 1179LCE48A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LCE48A-B is determined by strict equivalence of electrical parameters. The primary substitute identified is LCE48A, which maintains identical electrical specifications across all critical parameters: 48V reverse standoff voltage, 53.3V minimum breakdown voltage, 77.4V maximum clamping voltage, and 19.4A peak pulse current capability. The distinction between LCE48A-B and LCE48A is packaging configuration only. LCE48A-B is supplied in Bulk packaging, while LCE48A is supplied in Cut Tape (CT) packaging. Both components are manufactured by Littelfuse Inc., share the same series designation (LCE), and are rated for identical operating temperature ranges (-55°C to 175°C). Substitution is valid when packaging format does not impose design or procurement constraints.

Parameter Comparison

Engineering Selection Recommendations

Both LCE48A-B and LCE48A are active production components with full RoHS3 compliance and REACH unaffected status, making them suitable for applications requiring regulatory compliance. Selection between these parts should be based on packaging requirements and procurement workflow. LCE48A-B in Bulk packaging is appropriate for high-volume manufacturing or reel-based assembly processes. LCE48A in Cut Tape packaging is suitable for lower-volume applications or when component-level inventory management is preferred. Both parts maintain identical electrical performance and thermal operating ranges, ensuring functional interchangeability in circuit design.

Frequently Asked Questions (FAQ)

Q: Can LCE48A replace LCE48A-B in my design? A: Yes. Both parts are electrically identical with matching voltage ratings (48V standoff, 77.4V clamping), current ratings (19.4A peak pulse), and power dissipation (1500W). The only difference is packaging format: LCE48A-B is Bulk, while LCE48A is Cut Tape.

Q: What determines if a TVS diode can substitute for the LCE48A-B? A: Substitution requires matching specifications across: reverse standoff voltage (48V), breakdown voltage (53.3V minimum), clamping voltage (77.4V maximum), peak pulse current (19.4A), power rating (1500W), operating temperature range (-55°C to 175°C), and mounting type (through-hole). All parameters must align exactly.

Q: Does packaging format affect electrical performance? A: No. Bulk and Cut Tape packaging formats contain identical components with identical electrical characteristics. Packaging selection is a procurement and assembly process consideration, not a performance factor.

Q: Are both parts RoHS compliant? A: Yes. Both LCE48A-B and LCE48A are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for restricted substance use.

Q: What is the operating temperature range for these parts? A: Both parts operate across -55°C to 175°C junction temperature (TJ), providing performance across industrial and extended temperature applications.