SL1024B450RG Gas Discharge Tube Equivalent & Substitute Parts

Part Overview

The SL1024B450RG is a 3-pole gas discharge tube (GDT) rated for 450V DC spark-over voltage with 20kA impulse discharge current capacity. Manufactured by Littelfuse Inc., this component is designed for through-hole mounting applications requiring overvoltage protection in multi-pole configurations.

The SL1024B450RG 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

SL1024B450RG

Littelfuse Inc.In Stock: 792SL1024B450RG Datasheet

Current PartRFQ

SL1021B450RF

Littelfuse Inc.In Stock: 1820SL1021B450RF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SL1024B450RG is determined by strict equivalence across the following critical parameters:

• Voltage - DC Spark Over (Nominal): 450V
• 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)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The SL1021B450RF meets all specified electrical and mechanical parameters and qualifies as a direct substitute for the obsolete SL1024B450RG.

Parameter Comparison

Engineering Selection Recommendations

The SL1021B450RF is the qualified substitute for the obsolete SL1024B450RG. Both components are manufactured by Littelfuse Inc. and maintain identical electrical performance specifications and mechanical form factors.

The SL1021B450RF carries active product status, ensuring ongoing availability and supply chain support. Both parts maintain ROHS3 compliance and identical export classification (EAR99), supporting regulatory and procurement requirements.

The packaging difference (SL1024B450RG supplied in standard packaging versus SL1021B450RF supplied in tray packaging) does not affect functional equivalence or board-level integration.

Frequently Asked Questions (FAQ)

Q: Can the SL1021B450RF be used as a direct replacement for the SL1024B450RG?

A: Yes. Both components share identical electrical ratings (450V DC spark-over, 20kA impulse discharge current), mechanical configuration (3-pole through-hole, axial cylinder package), and regulatory compliance status. The SL1021B450RF is the active equivalent.

Q: What is the difference between the SL1024B450RG and SL1021B450RF?

A: The primary difference is product status: SL1024B450RG is obsolete, while SL1021B450RF is active. Packaging format differs (standard versus tray), but electrical performance and physical form factor are identical.

Q: Are there any compatibility concerns when substituting these parts?

A: No compatibility concerns exist. Both components are pin-compatible, electrically equivalent, and mechanically interchangeable in through-hole PCB applications. No circuit modifications are required.

Q: Does the tray packaging of the SL1021B450RF affect its performance?

A: No. Packaging format is a supply and handling consideration only. It does not affect component performance, reliability, or electrical characteristics.

Q: Are both parts RoHS compliant?

A: Yes. Both the SL1024B450RG and SL1021B450RF are ROHS3 compliant and carry identical export classification (EAR99).