SL1024B260R Gas Discharge Tube - Equivalent & Substitute Parts

Part Overview

The SL1024B260R is a 3-pole gas discharge tube (GDT) rated for 260V DC spark-over voltage with 20kA impulse discharge current capacity. Designed for through-hole mounting in axial cylinder configuration, this component provides transient overvoltage protection in industrial and telecommunications applications.

The SL1024B260R is classified as obsolete. Locating active equivalent parts is necessary to ensure continued component availability, supply chain reliability, and access to current manufacturing batches with verified compliance documentation.

Substiute Parts

SL1024B260R

Littelfuse Inc.In Stock: 745SL1024B260R Datasheet

Current PartRFQ

SL1021B260R

Littelfuse Inc.In Stock: 1038SL1021B260R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SL1024B260R is determined by strict equivalence across the following electrical and mechanical parameters:

• Voltage - DC Spark Over (Nominal): 260 V
• Impulse Discharge Current (8/20µs): 20000A (20kA)
• Number of Poles: 3
• Mounting Type: Through Hole
• Package / Case: Axial Cylinder, 3 Lead (Radial Bend)
• Fail Short characteristic: No

The SL1021B260R meets all substitution criteria. Both parts are manufactured by Littelfuse Inc., share identical electrical ratings, mechanical configuration, and compliance certifications. The primary distinction is product status: SL1024B260R is obsolete while SL1021B260R is active production.

Parameter Comparison

Engineering Selection Recommendations

The SL1021B260R is the direct functional equivalent for the obsolete SL1024B260R. Both components carry identical electrical specifications, mechanical form factors, and regulatory compliance certifications. The SL1021B260R is currently in active production status, ensuring availability and access to current manufacturing documentation.

Selection of SL1021B260R eliminates obsolescence risk while maintaining full electrical and mechanical compatibility with existing circuit designs. Both parts satisfy ROHS3 compliance requirements and carry equivalent export classification (EAR99).

Frequently Asked Questions (FAQ)

Q: Can SL1021B260R be used as a direct replacement for SL1024B260R in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters: 260V DC spark-over voltage, 20kA impulse discharge current, 3-pole configuration, through-hole mounting, and axial cylinder package. No circuit modifications are required.

Q: What is the primary reason to transition from SL1024B260R to SL1021B260R?

A: SL1024B260R is classified as obsolete. SL1021B260R is active production, ensuring continued supply availability and access to current manufacturing batches with verified compliance documentation.

Q: Are there packaging differences between these parts?

A: The mechanical package and case configuration are identical for both parts. SL1024B260R is supplied in standard packaging, while SL1021B260R is supplied in tray packaging. Both are suitable for through-hole PCB assembly.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both SL1024B260R and SL1021B260R are ROHS3 compliant, carry MSL rating of 1 (Unlimited), and share identical ECCN (EAR99) and HTSUS classifications.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts are rated for identical voltage (260V DC spark-over), impulse discharge current (20kA at 8/20µs), and fail-short characteristics. Electrical performance is equivalent.