CG2230L Equivalent & Substitute Parts

Part Overview

The CG2230L is a Gas Discharge Tube (GDT) manufactured by Littelfuse Inc., designed for overvoltage protection applications. This 2-pole through-hole component operates at a nominal DC spark-over voltage of 230V with an impulse discharge current rating of 20kA (8/20µs). The part is currently in active production status with RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Finding equivalent or substitute components may be necessary due to inventory constraints, lead time considerations, or application-specific requirements for alternative voltage or current ratings.

Substiute Parts

CG2230L

Littelfuse Inc.In Stock: 2335CG2230L Datasheet

Current PartRFQ

B88069X0660S102

EPCOS - TDK ElectronicsIn Stock: 2984B88069X0660S102 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of Gas Discharge Tubes is determined by the following critical electrical and mechanical parameters:

• Voltage Rating (DC Spark Over): The nominal spark-over voltage must match the circuit protection requirement. Different voltage ratings serve different application voltage levels.
• Impulse Discharge Current (8/20µs): The current handling capacity determines the component's ability to suppress transient overvoltage events. Higher ratings provide greater surge protection capability.
• Number of Poles: Must remain consistent for circuit topology compatibility (2-pole configuration required).
• Mounting Type and Package: Through-hole axial cylinder configuration ensures mechanical and electrical compatibility with PCB layouts designed for the CG2230L.
• Fail Short Characteristic: Both the main part and substitutes must maintain the same fail mode (No fail short) to preserve circuit protection integrity.
• Compliance Standards: RoHS3 compliance and REACH unaffected status ensure regulatory alignment.

The substitute part B88069X0660S102 (EPCOS - TDK Electronics) differs significantly in voltage rating (550V vs. 230V) and impulse discharge current (5kA vs. 20kA), making it suitable only for applications with different voltage and current protection requirements, not as a direct functional equivalent for 230V/20kA circuits.

Parameter Comparison

Engineering Selection Recommendations

Both the CG2230L and B88069X0660S102 maintain active product status with RoHS3 compliance and REACH unaffected regulatory standing. Selection between these components must be based on the specific circuit voltage and current protection requirements:

• CG2230L: Select for applications requiring 230V nominal spark-over voltage with 20kA impulse discharge current capacity.
• B88069X0660S102: Select for applications requiring 550V nominal spark-over voltage with 5kA impulse discharge current capacity.

These parts are not interchangeable in the same circuit due to their different electrical ratings. Component selection must align with the protected circuit's voltage level and transient current magnitude specifications.

Frequently Asked Questions (FAQ)

Q: Can B88069X0660S102 be used as a direct replacement for CG2230L?

A: No. The B88069X0660S102 has a 550V spark-over voltage and 5kA discharge current rating, while the CG2230L operates at 230V with 20kA capacity. These different electrical ratings make them suitable for different protection applications and voltage levels.

Q: What determines if a Gas Discharge Tube can substitute for another?

A: The primary determining factors are nominal DC spark-over voltage, impulse discharge current rating (8/20µs), number of poles, mounting type, and package configuration. All these parameters must align with circuit requirements for proper substitution.

Q: Are both parts available in the same packaging format?

A: Yes. Both CG2230L and B88069X0660S102 use through-hole axial cylinder packages, ensuring mechanical compatibility with PCB layouts designed for this form factor.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both components are RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component use.

Q: What is the significance of the "Fail Short" parameter?

A: The "Fail Short" characteristic (No for both parts) indicates the component's failure mode. When a GDT reaches end-of-life, it fails in a short-circuit condition, which is the intended protective behavior for overvoltage suppression circuits.