CG2-75L Equivalent & Substitute Parts

Part Overview

The CG2-75L is a Gas Discharge Tube (GDT) rated for 75V DC spark-over voltage with an impulse discharge current capacity of 20kA (8/20µs). This component is designed for two-pole through-hole applications and features an axial cylinder package configuration. The CG2-75L is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

CG2-75L

Littelfuse Inc.In Stock: 772CG2-75L Datasheet

Current PartRFQ

CG75L

Littelfuse Inc.In Stock: 3849CG75L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CG2-75L is determined by strict equivalence across the following critical parameters:

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

The CG75L meets all substitution criteria as a direct equivalent. Both components share identical electrical specifications, mechanical configuration, and environmental compliance ratings. The primary distinction is product status: CG2-75L is obsolete while CG75L is active, and packaging format differs (bulk versus tray).

Parameter Comparison

Engineering Selection Recommendations

The CG75L is the direct functional equivalent for CG2-75L replacement. Both components are manufactured by Littelfuse Inc. and maintain identical electrical and mechanical specifications. The CG75L carries active product status, ensuring continued availability and manufacturer support, whereas the CG2-75L is obsolete. Both components meet ROHS3 compliance requirements and carry equivalent environmental ratings (MSL 1). Selection of CG75L is appropriate for new designs and legacy system maintenance where CG2-75L components are no longer procurable.

Frequently Asked Questions (FAQ)

Q: Can CG75L be used as a direct replacement for CG2-75L in existing designs?

A: Yes. Both components share identical electrical ratings (75V DC spark-over, 20kA impulse discharge current), mechanical configuration (2-pole, through-hole, axial cylinder package), and environmental compliance. No circuit redesign is required.

Q: What is the difference between CG2-75L and CG75L?

A: The components are electrically and mechanically equivalent. The primary differences are product status (CG2-75L is obsolete; CG75L is active) and packaging format (CG2-75L supplied in bulk; CG75L supplied in tray). Both are manufactured by Littelfuse Inc.

Q: Are there any compliance or certification differences between these parts?

A: No. Both components are ROHS3 compliant, carry identical moisture sensitivity levels (MSL 1), and share the same ECCN and HTSUS classifications.

Q: What packaging considerations apply when switching from CG2-75L to CG75L?

A: CG75L is supplied in tray packaging rather than bulk format. This may affect procurement quantities and storage requirements but does not impact component performance or electrical characteristics.