CG75LSN Equivalent & Substitute Parts

Part Overview

The CG75LSN is a Gas Discharge Tube (GDT) rated at 75V with an impulse discharge current of 20kA, configured as a 2-pole through-hole component. This part is classified as obsolete, making identification of suitable substitutes essential for ongoing design support and procurement planning. The CG75LSN serves as a surge protection device in applications requiring reliable overvoltage suppression with specified electrical and mechanical characteristics.

Substiute Parts

CG75LSN

Littelfuse Inc.In Stock: 931CG75LSN Datasheet

Current PartRFQ

CG75L

Littelfuse Inc.In Stock: 3849CG75L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CG75LSN is determined by strict equivalence across the following critical parameters:

• Voltage - DC Spark Over (Nominal): 75V
• Impulse Discharge Current (8/20µs): 20000A (20kA)
• Number of Poles: 2
• Mounting Type: Through Hole
• Package / Case: Axial Cylinder
• Fail Short Characteristic: No
• RoHS Compliance: ROHS3 Compliant

The CG75L meets all these criteria and is identified as the manufacturer-recommended substitute. Both parts share identical electrical performance specifications and mechanical form factors, ensuring functional compatibility in applications originally designed for the CG75LSN.

Parameter Comparison

Engineering Selection Recommendations

The CG75L is the direct substitute for the obsolete CG75LSN. Both components are manufactured by Littelfuse Inc. within the CG series and maintain identical electrical and mechanical specifications. The CG75L carries active product status, ensuring ongoing availability and supply chain continuity. Both parts maintain ROHS3 compliance and equivalent regulatory classifications (ECCN: EAR99, HTSUS: 8536.30.8000), supporting seamless integration into existing designs without regulatory or compliance complications.

Frequently Asked Questions (FAQ)

Q: Can the CG75L be used as a direct replacement for the CG75LSN?

A: Yes. The CG75L is the manufacturer-recommended substitute. Both parts share identical voltage ratings (75V), impulse discharge current (20kA), pole configuration (2-pole), mounting type (through-hole), and package form (axial cylinder). Electrical performance and mechanical compatibility are equivalent.

Q: What is the primary reason for substitution?

A: The CG75LSN is classified as obsolete. The CG75L provides the same functional and electrical characteristics while maintaining active product status and assured supply availability.

Q: Are there packaging differences between CG75LSN and CG75L?

A: The CG75LSN is supplied in standard packaging, while the CG75L is supplied in tray packaging. Both components use identical axial cylinder case geometry, ensuring mechanical compatibility in through-hole mounting applications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the CG75LSN and CG75L are ROHS3 compliant, carry MSL rating of 1 (unlimited moisture sensitivity), and share identical ECCN (EAR99) and HTSUS (8536.30.8000) classifications.

Q: Are there any electrical performance differences?

A: No. Both parts are specified with identical voltage spark-over characteristics (75V nominal) and impulse discharge current ratings (20kA at 8/20µs), with matching fail-short behavior (No).