SL1024B230RF Gas Discharge Tube - Equivalent & Substitute Parts

Part Overview

The SL1024B230RF is a 3-pole gas discharge tube (GDT) rated for 230V DC spark-over voltage with an impulse discharge current capacity of 20kA (8/20µs). Manufactured by Littelfuse Inc., this component is designed for through-hole mounting applications requiring overvoltage protection in multi-pole configurations.

The SL1024B230RF is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this component.

Substiute Parts

SL1024B230RF

Littelfuse Inc.In Stock: 962SL1024B230RF Datasheet

Current PartRFQ

SL1021B230RF

Littelfuse Inc.In Stock: 3407SL1021B230RF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SL1024B230RF is determined by strict equivalence across the following critical parameters:

• Voltage - DC Spark Over (Nominal): 230 V
• Impulse Discharge Current (8/20µs): 20000A (20kA)
• Number of Poles: 3
• Fail Short Characteristic: Yes
• Mounting Type: Through Hole
• Package / Case: Axial Cylinder, 3 Lead (Radial Bend)

The SL1021B230RF meets all substitution criteria. While it belongs to a different series (SL1021B versus SL1024B), it maintains identical electrical performance specifications and mechanical compatibility. The primary distinction is product status: SL1021B230RF is active and available, whereas SL1024B230RF is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The SL1021B230RF is the direct substitute for the obsolete SL1024B230RF. Both components are manufactured by Littelfuse Inc. and maintain identical electrical and mechanical specifications across all critical parameters.

Selection of SL1021B230RF is supported by:

• Active product status with confirmed supply availability
• ROHS3 compliance matching the original part
• Identical voltage and current ratings (230V, 20kA)
• Identical mechanical form factor and mounting configuration
• Equivalent environmental classification (MSL 1)

No additional design modifications or circuit adjustments are required when transitioning from SL1024B230RF to SL1021B230RF.

Frequently Asked Questions (FAQ)

Q: Can SL1021B230RF be used as a direct replacement for SL1024B230RF?

A: Yes. The SL1021B230RF is a direct substitute. Both parts share identical electrical ratings (230V spark-over, 20kA impulse current), pole configuration (3-pole), fail-short characteristic, mounting type (through-hole), and package geometry (axial cylinder with radial bend leads).

Q: What is the primary reason for substitution?

A: The SL1024B230RF is obsolete. The SL1021B230RF is an active product from the same manufacturer with equivalent performance specifications and availability.

Q: Are there any packaging differences between these parts?

A: The main part (SL1024B230RF) is supplied in standard packaging, while the substitute (SL1021B230RF) is supplied in trays. The physical component form factor and lead configuration remain identical. Tray packaging does not affect electrical or mechanical compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both SL1024B230RF and SL1021B230RF are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level). No compliance gaps exist between the parts.

Q: Are there any circuit design considerations when using the substitute?

A: No. The SL1021B230RF maintains identical electrical characteristics and mechanical dimensions. No circuit modifications, PCB layout changes, or design adjustments are necessary.