SL1024B260C Equivalent & Substitute Parts

Part Overview

The SL1024B260C is a Gas Discharge Tube (GDT) rated for 260V DC spark-over voltage with 20kA impulse discharge current capacity in a 3-pole configuration. This component is designed for surge protection applications requiring user-defined mounting. The part is currently listed as obsolete, making identification of suitable substitute components essential for ongoing design support and procurement planning.

Substiute Parts

SL1024B260C

Littelfuse Inc.In Stock: 860SL1024B260C Datasheet

Current PartRFQ

SL1021B260C

LittelfuseIn Stock: 1350SL1021B260C Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SL1024B260C is determined by strict equivalence across the following electrical and mechanical parameters:

• Voltage - DC Spark Over (Nominal): 260 V
• Impulse Discharge Current (8/20µs): 20000A (20kA)
• Number of Poles: 3
• Fail Short characteristic: No
• Package / Case: Cylinder No Lead, 3 Terminal
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The SL1021B260C meets all these criteria and is classified as a direct substitute. The primary distinction is the mounting type: the SL1024B260C uses user-defined mounting, while the SL1021B260C is configured for surface mount (SMD) applications.

Parameter Comparison

Engineering Selection Recommendations

The SL1021B260C is the active production equivalent for the obsolete SL1024B260C. Both components share identical electrical specifications (260V spark-over, 20kA impulse discharge current, 3-pole configuration) and mechanical package dimensions (Cylinder No Lead, 3 Terminal). Both maintain ROHS3 compliance and MSL 1 rating.

Selection between these parts depends on mounting requirements. The SL1024B260C accommodates user-defined mounting configurations, while the SL1021B260C is optimized for surface mount (SMD) assembly. For applications requiring through-hole or custom mounting, design modification may be necessary to accommodate the SL1021B260C's surface mount configuration.

The SL1021B260C's active product status and higher inventory availability (1300 pcs vs. 771 pcs) support long-term supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the SL1021B260C directly replace the SL1024B260C in existing designs?

A: Electrical and mechanical parameters are identical. Compatibility depends on mounting method. If the original design uses user-defined mounting, the surface mount configuration of the SL1021B260C requires PCB layout and assembly process modification.

Q: Are the electrical performance characteristics identical between these parts?

A: Yes. Both components specify 260V DC spark-over voltage, 20kA impulse discharge current (8/20µs), 3-pole configuration, and non-fail-short operation. Electrical performance is equivalent.

Q: What is the primary difference between SL1024B260C and SL1021B260C?

A: The primary difference is mounting type. The SL1024B260C uses user-defined mounting, while the SL1021B260C is configured for surface mount (SMD) assembly. Both use identical Cylinder No Lead, 3 Terminal packages.

Q: Are both parts RoHS compliant?

A: Yes. Both the SL1024B260C and SL1021B260C are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Why is the SL1024B260C listed as obsolete?

A: The SL1024B260C is obsolete. The SL1021B260C represents the active production line for this electrical specification and is the recommended long-term solution.