SL1024B300RF Gas Discharge Tube - Equivalent & Substitute Parts

Part Overview

The SL1024B300RF is a 3-pole gas discharge tube (GDT) rated for 300V DC spark-over voltage with 20kA impulse discharge current capacity. Designed for through-hole mounting in axial cylinder configuration, this component is used for transient overvoltage protection in telecommunications, power supply, and industrial control applications.

The SL1024B300RF is classified as obsolete. Identifying functionally equivalent active alternatives ensures design continuity and supply chain reliability for new production runs and field replacements.

Substiute Parts

SL1024B300RF

Littelfuse Inc.In Stock: 930SL1024B300RF Datasheet

Current PartRFQ

SL1021B300RF

LittelfuseIn Stock: 883SL1021B300RF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SL1024B300RF is determined by matching the following critical electrical and mechanical parameters:

• Voltage - DC Spark Over (Nominal): 300 V
• Impulse Discharge Current (8/20µs): 20000 A (20 kA)
• Number of Poles: 3
• Fail Mode: Short
• Mounting Type: Through Hole
• Package / Case: Axial Cylinder, 3 Lead (Radial Bend)
• RoHS Status: ROHS3 Compliant

The SL1021B300RF meets all substitution criteria. Both components are manufactured by Littelfuse Inc. and share identical electrical ratings and mechanical specifications. The primary distinction is product status: SL1024B300RF is obsolete, while SL1021B300RF is active production.

Parameter Comparison

Engineering Selection Recommendations

The SL1021B300RF is the direct functional equivalent for the obsolete SL1024B300RF. Both components are ROHS3 compliant and carry identical electrical and mechanical specifications. The SL1021B300RF is currently in active production status, ensuring long-term availability and supply chain stability.

Selection of SL1021B300RF is appropriate for new designs, production restarts, and field replacement applications where the SL1024B300RF is no longer available.

Frequently Asked Questions (FAQ)

Q: Can SL1021B300RF be used as a direct replacement for SL1024B300RF in existing designs?

A: Yes. Both components share identical electrical ratings (300V DC spark-over, 20kA impulse discharge current), pole configuration (3-pole), fail mode (short), mounting type (through-hole), and package geometry (axial cylinder, 3-lead radial bend). No circuit modifications are required.

Q: What is the primary difference between these two part numbers?

A: The SL1024B300RF is obsolete, while the SL1021B300RF is in active production. The electrical and mechanical specifications are identical.

Q: Are there any compliance or certification differences?

A: Both components are ROHS3 compliant with MSL rating of 1 (unlimited moisture sensitivity). No compliance differences exist between the two parts.

Q: Does packaging differ between these parts?

A: The SL1024B300RF is supplied in standard packaging, while the SL1021B300RF is supplied in tray packaging. Both maintain identical component specifications and through-hole mounting compatibility.

Q: Can these components be used interchangeably in PCB assembly?

A: Yes. Identical package geometry (axial cylinder, 3-lead radial bend) and through-hole mounting specifications ensure direct PCB compatibility without layout modifications.