GTCA28-152L-P03 Equivalent & Substitute Parts

Part Overview

The GTCA28-152L-P03 is a Gas Discharge Tube (GDT) rated for 1500V DC spark-over voltage with 3kA impulse discharge current capacity in a 2-pole through-hole configuration. This component is classified as obsolete, necessitating identification of active equivalent parts for continued system design and procurement. The part is manufactured by Littelfuse Inc. and maintains ROHS3 compliance and REACH unaffected status.

Substiute Parts

GTCA28-152L-P03

Littelfuse Inc.In Stock: 714GTCA28-152L-P03 Datasheet

Current PartRFQ

CG31.5L

Littelfuse Inc.In Stock: 2077CG31.5L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the GTCA28-152L-P03 is determined by the following critical parameters:

• Voltage Rating Match: DC spark-over voltage must remain at 1500V to maintain circuit protection thresholds
• Pole Configuration: 2-pole requirement must be preserved for dual-line protection
• Mounting Technology: Through-hole axial cylinder package ensures mechanical and electrical compatibility with existing PCB layouts
• Fail Mode: Non-fail-short characteristic must be maintained for safety-critical applications

The substitute part CG31.5L meets these core requirements while offering enhanced impulse discharge current capacity (5kA versus 3kA), representing a performance upgrade within the same electrical and mechanical envelope. The CG31.5L is active product status, ensuring long-term availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

The CG31.5L is the direct substitute for GTCA28-152L-P03 applications. Both components maintain identical voltage and pole specifications with matching through-hole axial cylinder packaging. The CG31.5L provides superior impulse discharge current handling (5kA versus 3kA), enabling use in higher-energy transient environments without circuit modification.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications. The CG31.5L's active product status ensures procurement availability and manufacturer support, eliminating supply chain risk associated with the obsolete GTCA28-152L-P03.

Frequently Asked Questions (FAQ)

Q: Can CG31.5L be used as a direct replacement for GTCA28-152L-P03?

A: Yes. Both components share identical 1500V DC spark-over voltage, 2-pole configuration, through-hole mounting, and axial cylinder package. The CG31.5L provides higher impulse discharge current capacity (5kA) within the same physical and electrical envelope.

Q: What is the primary difference between these two parts?

A: The impulse discharge current rating differs: GTCA28-152L-P03 handles 3kA while CG31.5L handles 5kA. This represents a performance upgrade with no change to voltage protection threshold or mechanical compatibility.

Q: Are there packaging differences between GTCA28-152L-P03 and CG31.5L?

A: Both use axial cylinder through-hole packages. GTCA28-152L-P03 is supplied in standard packaging while CG31.5L is supplied in tray packaging. This does not affect component functionality or PCB mounting compatibility.

Q: Why is GTCA28-152L-P03 obsolete?

A: Product obsolescence is determined by manufacturer lifecycle decisions. The CG31.5L represents the active equivalent offering superior performance characteristics and guaranteed long-term availability.

Q: Do both parts meet the same compliance standards?

A: Yes. Both GTCA28-152L-P03 and CG31.5L are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for industrial component applications.