GTCN28-231L-P05 Equivalent & Substitute Parts

Part Overview

The GTCN28-231L-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 configuration. This component is classified as Obsolete, necessitating identification of active equivalent alternatives for continued system design and maintenance applications. Substitute parts must maintain electrical performance specifications while accommodating modern packaging and manufacturing standards.

Substiute Parts

GTCN28-231L-P05

LittelfuseIn Stock: 1032GTCN28-231L-P05 Datasheet

Current PartRFQ

SL1011A230C

Littelfuse Inc.In Stock: 715SL1011A230C Datasheet

DirectRFQ

CG2230MS

Littelfuse Inc.In Stock: 1697CG2230MS Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the GTCN28-231L-P05 is determined by the following critical parameters:

• Voltage - DC Spark Over (Nominal): Must be 230 V
• Number of Poles: Must be 2
• Fail Short Characteristic: Must be No
• RoHS Status: Must maintain ROHS3 Compliance
• Moisture Sensitivity Level: Must be 1 (Unlimited)

Two substitute parts meet these core electrical and compliance requirements:

1. SL1011A230C (Direct Equivalent): Maintains identical electrical specifications with active product status and bulk packaging.
2. CG2230MS (Higher Discharge Current Alternative): Exceeds impulse discharge current rating (20kA vs. 5kA) while maintaining all other critical parameters, available in surface mount configuration.

Parameter Comparison

Engineering Selection Recommendations

SL1011A230C is the direct functional equivalent for applications requiring identical electrical performance specifications. This part maintains active product status, ensuring long-term availability and supply chain continuity. Selection is appropriate for designs where the original 5kA impulse discharge current rating is the specified requirement and mounting configuration remains user-defined.

CG2230MS is suitable for applications where higher transient surge protection is beneficial or required. The 20kA impulse discharge current rating provides enhanced protection margin while maintaining the same spark-over voltage and 2-pole configuration. Surface mount packaging requires PCB design modification compared to the original through-hole or user-defined mounting approach. This part is recommended for new designs or redesigns incorporating surface mount assembly processes.

Both substitutes maintain full ROHS3 compliance, REACH unaffected status, and EAR99 export classification, ensuring regulatory and supply chain compatibility with the original GTCN28-231L-P05.

Frequently Asked Questions (FAQ)

Q: Can SL1011A230C be used as a direct replacement for GTCN28-231L-P05?

A: Yes. SL1011A230C maintains identical voltage rating (230 V), impulse discharge current (5kA), pole count (2), and fail-short characteristic (No). Both parts are ROHS3 compliant with MSL 1 rating. The primary difference is product status: SL1011A230C is active, while GTCN28-231L-P05 is obsolete.

Q: What is the advantage of CG2230MS over the other substitutes?

A: CG2230MS provides 4× higher impulse discharge current capacity (20kA vs. 5kA) while maintaining the same 230 V spark-over voltage and 2-pole configuration. This increased rating offers greater transient protection margin. However, CG2230MS uses surface mount packaging (2-SMD Cylinder Square End) rather than user-defined mounting, requiring PCB design changes.

Q: Are there packaging considerations when selecting a substitute?

A: Yes. GTCN28-231L-P05 uses user-defined mounting with cylinder no-lead package. SL1011A230C maintains this package type in bulk format. CG2230MS uses surface mount technology with cut tape packaging, requiring different assembly and PCB layout approaches.

Q: Do all substitutes meet the same compliance standards?

A: Yes. GTCN28-231L-P05, SL1011A230C, and CG2230MS are all ROHS3 compliant, REACH unaffected, and classified as EAR99 for export purposes. Moisture sensitivity level is 1 (Unlimited) for all three parts.

Q: Which substitute should be selected for new product designs?

A: For new designs, SL1011A230C is recommended if the 5kA impulse discharge current specification is adequate. CG2230MS is recommended if surface mount assembly is the manufacturing standard and higher surge protection (20kA) is desired or specified.