GTCR36-231M-P10-FS Gas Discharge Tube Equivalent & Substitute Parts

Part Overview

The GTCR36-231M-P10-FS is a 3-pole gas discharge tube (GDT) rated for 230V DC spark-over voltage with 10kA impulse discharge current capacity. Manufactured by Littelfuse Inc., this component is designed for overvoltage protection in through-hole applications. The part is currently listed as obsolete, making identification of active equivalent models necessary for ongoing procurement and system maintenance.

Substiute Parts

GTCR36-231M-P10-FS

Littelfuse Inc.In Stock: 1115GTCR36-231M-P10-FS Datasheet

Current PartRFQ

SL1003A230RF

Littelfuse Inc.In Stock: 1253SL1003A230RF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the GTCR36-231M-P10-FS is determined by the following critical electrical and mechanical parameters:

• Voltage Rating: 230V DC spark-over voltage must be maintained
• Current Capacity: 10kA impulse discharge current (8/20µs waveform) is required
• Pole Configuration: 3-pole architecture for multi-line protection
• Fail Mode: Short-circuit failure characteristic
• Mounting: Through-hole technology for PCB integration
• Compliance: ROHS3 compliance and REACH unaffected status

The substitute part SL1003A230RF meets all these criteria while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The SL1003A230RF is the direct equivalent for the obsolete GTCR36-231M-P10-FS. Both components are manufactured by Littelfuse Inc. and share identical electrical specifications: 230V DC spark-over voltage, 10kA impulse discharge current, and 3-pole configuration. The substitute maintains full ROHS3 compliance and REACH unaffected status.

The primary difference is packaging geometry: the original uses a radial cylinder configuration while the substitute employs an axial cylinder with radial bend leads. This distinction affects PCB layout and board space requirements but does not impact electrical performance or protection characteristics.

The SL1003A230RF is currently in active production status with confirmed inventory availability, making it the appropriate selection for new designs and replacement applications.

Frequently Asked Questions (FAQ)

Q: Can SL1003A230RF be used as a direct replacement for GTCR36-231M-P10-FS?

A: Yes. Both components provide identical electrical protection: 230V spark-over voltage, 10kA impulse discharge current, and 3-pole short-circuit fail mode. The electrical performance and protection characteristics are equivalent.

Q: What is the difference between the radial cylinder and axial cylinder packages?

A: The GTCR36-231M-P10-FS uses a radial cylinder package with 3 leads, while the SL1003A230RF uses an axial cylinder package with radial bend leads. This affects the physical footprint and lead orientation on the PCB. Board layout modifications may be required to accommodate the different package geometry.

Q: Are there any compliance differences between these parts?

A: No. Both components are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Moisture sensitivity level is identical at MSL 1 (Unlimited).

Q: Why is the original part listed as obsolete?

A: The GTCR36-231M-P10-FS has been discontinued by the manufacturer. The SL1003A230RF represents the active equivalent in Littelfuse's current product portfolio.

Q: What is the impulse discharge current specification?

A: Both parts are rated for 10000A (10kA) impulse discharge current using the 8/20 microsecond waveform standard for surge testing.