SL1024B350RF Equivalent & Substitute Parts

Part Overview

The SL1024B350RF is a Gas Discharge Tube (GDT) rated for 350V DC spark-over voltage with 20kA impulse discharge current capacity in a 3-pole through-hole configuration. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and procurement planning. The SL1021B350RF serves as the direct substitute, offering identical electrical performance specifications within an active product status.

Substiute Parts

SL1024B350RF

LittelfuseIn Stock: 1094SL1024B350RF Datasheet

Current PartRFQ

SL1021B350RF

Littelfuse Inc.In Stock: 1467SL1021B350RF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The SL1021B350RF qualifies as a direct substitute for the SL1024B350RF based on matching electrical and mechanical parameters:

Matching Criteria:

• Voltage - DC Spark Over (Nominal): 350 V
• Impulse Discharge Current (8/20µs): 20000A (20kA)
• Number of Poles: 3
• Fail Short: Yes
• Mounting Type: Through Hole
• Package / Case: Axial Cylinder, 3 Lead (Radial Bend)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Both components belong to the Littelfuse GDT product family and maintain identical functional specifications for overvoltage protection applications.

Parameter Comparison

Engineering Selection Recommendations

The SL1021B350RF is the appropriate selection for applications currently using the obsolete SL1024B350RF. Both components maintain identical electrical performance and mechanical compatibility. The SL1021B350RF carries active product status, ensuring continued availability and supply chain support. Both components satisfy ROHS3 compliance requirements and share equivalent regulatory classifications (EAR99, HTSUS 8536.30.8000). The transition from SL1024B350RF to SL1021B350RF requires no circuit redesign or PCB modification due to matching package geometry and electrical characteristics.

Frequently Asked Questions (FAQ)

Q: Can the SL1021B350RF be used as a direct replacement for the SL1024B350RF?

A: Yes. Both components share identical voltage ratings (350V DC spark-over), discharge current capacity (20kA), pole configuration (3-pole), 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 SL1024B350RF is classified as obsolete, while the SL1021B350RF maintains active product status. The electrical and mechanical specifications are identical.

Q: Are there any packaging differences between these components?

A: The SL1024B350RF is supplied in standard packaging, while the SL1021B350RF is supplied in Tray packaging. Both maintain the same physical form factor and lead configuration suitable for through-hole mounting.

Q: Do both components meet the same compliance standards?

A: Yes. Both the SL1024B350RF and SL1021B350RF are ROHS3 compliant with MSL rating of 1 (Unlimited). Both carry EAR99 export classification and HTSUS code 8536.30.8000.

Q: Is there any difference in fail-safe behavior?

A: No. Both components are configured to fail short, providing identical protection characteristics in overvoltage suppression applications.