SL1024B250C Equivalent & Substitute Parts

Part Overview

The SL1024B250C is a Gas Discharge Tube (GDT) rated for 250V DC spark-over voltage with 20kA impulse discharge current capacity in a 3-pole configuration. This component is classified as Obsolete, necessitating identification of active equivalent parts for continued system design and procurement. The SL1024B250C maintains full ROHS3 compliance and is suitable for overvoltage protection applications requiring the specified electrical and mechanical parameters.

Substiute Parts

SL1024B250C

Littelfuse Inc.In Stock: 760SL1024B250C Datasheet

Current PartRFQ

SL1021B250C

Littelfuse Inc.In Stock: 956SL1021B250C Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The SL1021B250C qualifies as a direct substitute for the SL1024B250C based on matching electrical and mechanical parameters. Substitution eligibility is determined by the following criteria:

• Voltage - DC Spark Over (Nominal): 250 V (identical)
• Impulse Discharge Current (8/20µs): 20000A (20kA) (identical)
• Number of Poles: 3 (identical)
• Package / Case: Cylinder No Lead, 3 Terminal (identical)
• Fail Short characteristic: No (identical)
• RoHS Status: ROHS3 Compliant (identical)
• Moisture Sensitivity Level (MSL): 1 (Unlimited) (identical)

The SL1021B250C is an active product from Littelfuse Inc., providing continuity for applications currently using the obsolete SL1024B250C.

Parameter Comparison

Engineering Selection Recommendations

The SL1021B250C is the direct equivalent for the obsolete SL1024B250C. Both components share identical electrical specifications (250V DC spark-over, 20kA impulse discharge current) and mechanical configuration (3-pole, cylinder no-lead package). The SL1021B250C maintains active product status with full ROHS3 compliance and REACH Unaffected designation, ensuring regulatory continuity for new designs and procurement activities. Selection of the SL1021B250C eliminates obsolescence risk while preserving all functional and compliance requirements of the original specification.

Frequently Asked Questions (FAQ)

Q: Can the SL1021B250C be used as a direct replacement for the SL1024B250C?

A: Yes. Both components have identical voltage ratings (250V DC spark-over), impulse discharge current (20kA), pole configuration (3-pole), and package type (Cylinder No Lead, 3 Terminal). No circuit modifications are required.

Q: What is the primary reason for substitution?

A: The SL1024B250C is classified as Obsolete. The SL1021B250C is an active product from the same manufacturer, providing continued availability and supply chain stability.

Q: Are there any compliance differences between the two parts?

A: Both parts are ROHS3 Compliant with MSL 1 (Unlimited). The SL1021B250C includes REACH Unaffected designation, confirming regulatory alignment for international applications.

Q: Do the parts differ in packaging format?

A: The SL1024B250C is supplied without specified packaging, while the SL1021B250C is supplied in Tray format. Both maintain identical component specifications and terminal configuration.

Q: Are there inventory considerations for this substitution?

A: The SL1021B250C has 865 pieces in stock (New Original), providing adequate availability for procurement planning.