SL1024A350RF Gas Discharge Tube - Equivalent & Substitute Parts

Part Overview

The SL1024A350RF is a Gas Discharge Tube (GDT) rated for 350V DC spark-over voltage with 10kA impulse discharge current capacity in a 3-pole through-hole configuration. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity. The SL1021A350RF serves as the direct functional equivalent from the same manufacturer, offering identical electrical performance with current product availability.

Substiute Parts

SL1024A350RF

Littelfuse Inc.In Stock: 909SL1024A350RF Datasheet

Current PartRFQ

SL1021A350RF

Littelfuse Inc.In Stock: 1084SL1021A350RF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between the SL1024A350RF and SL1021A350RF is based on matching the following critical electrical and mechanical parameters:

• Voltage - DC Spark Over (Nominal): 350 V
• Impulse Discharge Current (8/20µs): 10000A (10kA)
• 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: 1 (Unlimited)

Both parts are manufactured by Littelfuse Inc. and share identical electrical ratings and mechanical specifications. The primary distinction is product status: SL1024A350RF is obsolete, while SL1021A350RF is active.

Parameter Comparison

Engineering Selection Recommendations

The SL1021A350RF is the direct replacement for the obsolete SL1024A350RF. Both components meet ROHS3 compliance requirements and carry identical electrical and mechanical specifications. Selection of the SL1021A350RF is appropriate for new designs and replacement applications requiring 350V DC spark-over protection with 10kA impulse discharge capacity in a 3-pole through-hole configuration. The active product status of SL1021A350RF ensures long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the SL1021A350RF be used as a direct replacement for the SL1024A350RF?

A: Yes. Both parts share identical electrical ratings (350V DC spark-over, 10kA impulse discharge current), mechanical configuration (3-pole through-hole, axial cylinder package), and compliance certifications (ROHS3). The SL1021A350RF is the active equivalent.

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

A: The primary difference is product status. The SL1024A350RF is obsolete, while the SL1021A350RF is active. Both are manufactured by Littelfuse Inc. and are functionally identical. Packaging differs slightly: SL1024A350RF is supplied in bulk, while SL1021A350RF is supplied in trays.

Q: Are there any compatibility concerns when switching from SL1024A350RF to SL1021A350RF?

A: No compatibility concerns exist. The parts are mechanically and electrically interchangeable. PCB footprint, lead configuration, and electrical performance are identical.

Q: What certifications apply to both parts?

A: Both the SL1024A350RF and SL1021A350RF are ROHS3 compliant and carry Moisture Sensitivity Level 1 (Unlimited). Both are classified under ECCN EAR99 and HTSUS 8536.30.8000.