GTCA28-231L-P05 Equivalent & Substitute Parts

Part Overview

The GTCA28-231L-P05 is a Gas Discharge Tube (GDT) rated for 230 V DC spark-over voltage with 5000A (5kA) impulse discharge current capacity in a 2-pole through-hole configuration. This component is classified as obsolete, necessitating identification of active equivalent alternatives that maintain the same electrical performance characteristics and mechanical compatibility for new designs and production continuity.

Substiute Parts

GTCA28-231L-P05

Littelfuse Inc.In Stock: 979GTCA28-231L-P05 Datasheet

Current PartRFQ

GTCA28-231M-R05

LittelfuseIn Stock: 1793GTCA28-231M-R05 Datasheet

DirectRFQ

SL1011A230A

Littelfuse Inc.In Stock: 1257SL1011A230A Datasheet

DirectRFQ

CG2230L

Littelfuse Inc.In Stock: 2335CG2230L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the GTCA28-231L-P05 is determined by the following critical parameters:

• Voltage Rating (230 V DC Spark Over): All substitutes must maintain the identical 230 V nominal spark-over voltage to ensure proper circuit protection operation.
• Impulse Discharge Current Capacity: Substitutes are grouped into two categories: direct equivalents at 5kA and higher-capacity alternatives at 20kA. Direct equivalents provide identical current handling; higher-capacity alternatives provide enhanced protection margins.
• Pole Configuration (2-Pole): All substitutes maintain 2-pole architecture for identical circuit topology compatibility.
• Mounting and Package: Through-hole mounting with axial cylinder package ensures mechanical and electrical interface compatibility.
• Fail-Short Characteristic: All substitutes maintain the fail-short behavior (No) consistent with the original part.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (5kA Category):

GTCA28-231M-R05 and SL1011A230A are functionally equivalent to the GTCA28-231L-P05, maintaining identical 230 V spark-over voltage and 5kA impulse discharge current. Both are active products with ROHS3 compliance and REACH unaffected status. GTCA28-231M-R05 is packaged in tray format with ±20% tolerance; SL1011A230A is supplied in cut tape with MSL 1 (unlimited) rating. Selection between these two depends on packaging requirements and tolerance specifications for the application.

Higher-Capacity Alternative (20kA Category):

CG2230L provides enhanced impulse discharge current capacity at 20kA while maintaining the same 230 V spark-over voltage and 2-pole through-hole configuration. This part is suitable for applications requiring increased protection margins or higher transient current handling. CG2230L is an active product with ROHS3 compliance, tray packaging, and MSL 1 (unlimited) rating.

All substitute parts maintain compliance with export control (EAR99) and tariff classifications (HTSUS 8536.30.8000) consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can GTCA28-231M-R05 directly replace GTCA28-231L-P05 in existing designs?

A: Yes. Both parts share identical 230 V spark-over voltage, 5kA impulse discharge current, 2-pole configuration, through-hole mounting, and axial cylinder package. The tolerance difference (±15% vs ±20%) does not affect functional compatibility. Packaging format differs (tray vs original specification), but electrical performance is equivalent.

Q: What is the difference between the 5kA and 20kA substitute options?

A: SL1011A230A and GTCA28-231M-R05 maintain the original 5kA impulse discharge current rating. CG2230L provides 20kA capacity at the same 230 V spark-over voltage. Selection depends on circuit protection requirements; higher-capacity parts provide greater transient current handling but may alter circuit response characteristics.

Q: Are all substitutes RoHS and REACH compliant?

A: Yes. All substitute parts (GTCA28-231M-R05, SL1011A230A, and CG2230L) are ROHS3 compliant. GTCA28-231M-R05 compliance status for REACH is not specified in available data; SL1011A230A and CG2230L are both REACH unaffected.

Q: What packaging formats are available for the substitutes?

A: GTCA28-231M-R05 is supplied in tray packaging. SL1011A230A is supplied in cut tape (CT) format. CG2230L is supplied in tray packaging. Packaging selection should align with production assembly requirements and inventory management practices.

Q: Do all substitutes maintain the same fail-short characteristic?

A: Yes. All substitute parts maintain the fail-short behavior (No) consistent with the GTCA28-231L-P05, ensuring identical circuit protection response under fault conditions.