SL1024B260RF Gas Discharge Tube - Equivalent & Substitute Parts

Part Overview

The SL1024B260RF 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 is used for transient overvoltage protection in telecommunications, power distribution, and industrial control applications.

The SL1024B260RF is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or field replacement requirements.

Substiute Parts

SL1024B260RF

Littelfuse Inc.In Stock: 726SL1024B260RF Datasheet

Current PartRFQ

SL1021B260RF

Littelfuse Inc.In Stock: 1240SL1021B260RF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SL1024B260RF is determined by strict equivalence across the following critical parameters:

• Voltage - DC Spark Over (Nominal): 260 V
• Impulse Discharge Current (8/20µs): 20000 A (20 kA)
• Number of Poles: 3
• Fail Short characteristic: Yes
• Mounting Type: Through Hole
• Package / Case: Axial Cylinder, 3 Lead (Radial Bend)
• RoHS Status: ROHS3 Compliant

The SL1021B260RF meets all substitution criteria. Both parts are manufactured by Littelfuse Inc., share identical electrical ratings, mechanical configuration, and environmental compliance specifications. The primary distinction is product status: SL1024B260RF is obsolete, while SL1021B260RF is active production.

Parameter Comparison

Engineering Selection Recommendations

The SL1021B260RF is the direct substitute for the SL1024B260RF. Both components are manufactured by Littelfuse Inc. and provide identical electrical performance and mechanical compatibility.

Selection of SL1021B260RF is supported by:

• Active product status ensuring ongoing availability and supply chain support
• Full compliance with ROHS3 environmental standards
• Identical electrical ratings (260V DC spark-over, 20kA impulse discharge current)
• Identical mechanical configuration and through-hole mounting compatibility
• Equivalent moisture sensitivity classification (MSL 1)

The SL1024B260RF obsolescence status makes SL1021B260RF the appropriate choice for new designs, production continuity, and field replacement applications.

Frequently Asked Questions (FAQ)

Q: Can SL1021B260RF be used as a direct replacement for SL1024B260RF in existing designs?

A: Yes. Both parts share identical electrical ratings (260V DC spark-over, 20kA impulse discharge current), mechanical configuration (3-pole through-hole axial cylinder), and environmental compliance. No circuit redesign or PCB modification is required.

Q: What is the primary reason to substitute SL1024B260RF with SL1021B260RF?

A: The SL1024B260RF is classified as obsolete. SL1021B260RF is an active production part from the same manufacturer with identical specifications, ensuring supply chain continuity and long-term availability.

Q: Are there packaging differences between these parts?

A: Both parts use the same package type: Axial Cylinder, 3 Lead (Radial Bend). The SL1024B260RF is supplied in standard packaging, while SL1021B260RF is supplied in tray packaging. Both are suitable for through-hole mounting applications.

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

A: Yes. Both SL1024B260RF and SL1021B260RF are ROHS3 compliant and classified as MSL 1 (Unlimited moisture sensitivity level). Both carry identical ECCN (EAR99) and HTSUS (8536.30.8000) classifications.

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

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