SL1024B090RG Equivalent & Substitute Parts

Part Overview

The SL1024B090RG is a Gas Discharge Tube (GDT) rated for 90V DC spark-over voltage with 20kA impulse discharge current capacity in a 3-pole through-hole configuration. This component is classified as obsolete, making substitute parts necessary for ongoing design support and procurement continuity. The SL1021B090RF serves as a direct functional equivalent with identical electrical specifications and mechanical compatibility.

Substiute Parts

SL1024B090RG

LittelfuseIn Stock: 1007SL1024B090RG Datasheet

Current PartRFQ

SL1021B090RF

Littelfuse Inc.In Stock: 877SL1021B090RF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The SL1021B090RF qualifies as a direct substitute for the SL1024B090RG based on matching electrical and mechanical parameters:

Matching Criteria:

• Voltage - DC Spark Over (Nominal): 90 V
• Impulse Discharge Current (8/20µs): 20000A (20kA)
• Number of Poles: 3
• Fail Mode: Short
• 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 surge protection applications requiring 90V protection with 20kA discharge capacity.

Parameter Comparison

Engineering Selection Recommendations

The SL1021B090RF is the appropriate substitute for the obsolete SL1024B090RG. The substitute part maintains active product status with Littelfuse, ensuring long-term availability and supply chain continuity. Both components satisfy ROHS3 compliance requirements and carry identical electrical performance specifications for 90V surge protection applications with 20kA discharge capacity. The through-hole mounting configuration and axial cylinder package remain unchanged, supporting direct board-level compatibility. Selection of the SL1021B090RF eliminates obsolescence risk while preserving all functional and compliance characteristics of the original design.

Frequently Asked Questions (FAQ)

Q: Can the SL1021B090RF be used as a direct replacement for the SL1024B090RG?

A: Yes. Both components share identical electrical specifications (90V spark-over, 20kA impulse discharge current), mechanical configuration (3-pole through-hole, axial cylinder package), and compliance certifications (ROHS3). The SL1021B090RF is a direct functional equivalent.

Q: What is the primary difference between these two parts?

A: The SL1024B090RG is classified as obsolete, while the SL1021B090RF maintains active product status. The substitute part ensures ongoing availability and supply chain support. Packaging differs (unspecified for SL1024B090RG versus tray for SL1021B090RF), but electrical and mechanical performance are identical.

Q: Are there any compatibility concerns with board-level integration?

A: No. Both components use identical through-hole mounting with axial cylinder, 3-lead radial bend package configuration. PCB footprints and lead spacing remain unchanged, supporting direct substitution without design modification.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both the SL1024B090RG and SL1021B090RF are ROHS3 compliant with MSL rating of 1 (unlimited moisture sensitivity). Both carry EAR99 export classification and HTSUS code 8536.30.8000.

Q: What is the impulse discharge current rating, and does it remain constant across both parts?

A: Both components are rated for 20000A (20kA) impulse discharge current at 8/20µs waveform, meeting identical surge protection requirements.