SL1024B230C Equivalent & Substitute Parts

Part Overview

The SL1024B230C is a Gas Discharge Tube (GDT) rated for 230V DC spark-over voltage with an impulse discharge current capacity of 20kA (8/20µs). This 3-pole component is designed for overvoltage protection applications requiring cylindrical form factor with no-lead terminals. The part is currently classified as Obsolete, making identification of compatible substitute components essential for ongoing system support and procurement planning.

Substiute Parts

SL1024B230C

Littelfuse Inc.In Stock: 1123SL1024B230C Datasheet

Current PartRFQ

SL1021B230C

Littelfuse Inc.In Stock: 1223SL1021B230C Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The SL1021B230C qualifies as a direct substitute for the SL1024B230C based on the following critical electrical and mechanical parameters:

Matching Parameters:

• Voltage - DC Spark Over (Nominal): 230 V
• Impulse Discharge Current (8/20µs): 20000A (20kA)
• Number of Poles: 3
• Package / Case: Cylinder No Lead, 3 Terminal
• Mounting Type: User Defined
• Fail Short: No
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The SL1021B series represents an active product line from the same manufacturer, providing functional equivalence while maintaining all critical electrical specifications and mechanical compatibility required for direct replacement in existing designs.

Parameter Comparison

Engineering Selection Recommendations

The SL1021B230C is the designated substitute for the obsolete SL1024B230C. Both components are manufactured by Littelfuse Inc. and maintain identical electrical performance specifications for 230V overvoltage protection applications requiring 20kA impulse discharge capacity.

The SL1021B230C offers the advantage of Active product status, ensuring continued availability and manufacturer support. Both parts maintain ROHS3 compliance and MSL Level 1 rating, meeting current environmental and reliability standards.

The primary difference between the two parts is packaging configuration: the SL1024B230C was supplied in standard packaging, while the SL1021B230C is available in Tray packaging. This packaging difference does not affect electrical or mechanical compatibility for circuit-level applications.

Frequently Asked Questions (FAQ)

Q: Can the SL1021B230C directly replace the SL1024B230C in existing designs?

A: Yes. The SL1021B230C provides direct functional equivalence. All critical electrical parameters (230V spark-over voltage, 20kA impulse discharge current, 3-pole configuration) and mechanical specifications (cylindrical form factor, no-lead terminals) are identical.

Q: What is the primary reason for substitution?

A: The SL1024B230C is classified as Obsolete. The SL1021B230C is the active equivalent from Littelfuse Inc., ensuring continued component availability and manufacturer support.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain ROHS3 compliance and MSL Level 1 rating. No additional qualification or testing is required for substitution.

Q: Does packaging differ between these parts?

A: Yes. The SL1024B230C was supplied in standard packaging, while the SL1021B230C is supplied in Tray packaging. This difference affects procurement and handling but does not impact electrical or mechanical performance.

Q: Are the terminal configurations identical?

A: Yes. Both parts use the same Cylinder No Lead, 3 Terminal package configuration, ensuring mechanical and electrical compatibility in existing PCB layouts and connector interfaces.