SL1024A450RG Gas Discharge Tube - Equivalent & Substitute Parts

Part Overview

The SL1024A450RG is a 3-pole gas discharge tube (GDT) rated for 450V DC spark-over voltage with 10kA impulse discharge current capacity. This component is designed for through-hole mounting applications requiring overvoltage protection. The part is currently listed as obsolete, making identification of active equivalent models essential for ongoing design support and procurement.

Substiute Parts

SL1024A450RG

Littelfuse Inc.In Stock: 1151SL1024A450RG Datasheet

Current PartRFQ

SL1021A450RF

Littelfuse Inc.In Stock: 1102SL1021A450RF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SL1024A450RG is determined by strict equivalence across the following critical parameters:

• Voltage - DC Spark Over (Nominal): 450V
• Impulse Discharge Current (8/20µs): 10000A (10kA)
• Number of Poles: 3
• Fail Short characteristic: Yes
• Mounting Type: Through Hole
• Package / Case: Axial Cylinder, 3 Lead (Radial Bend)

The SL1021A450RF meets all these criteria and is classified as a direct substitute. Both parts are manufactured by Littelfuse Inc. and maintain identical electrical and mechanical specifications. The primary distinction is product status: SL1024A450RG is obsolete while SL1021A450RF is active.

Parameter Comparison

Engineering Selection Recommendations

The SL1021A450RF is the direct equivalent for the obsolete SL1024A450RG. Both parts are ROHS3 compliant and carry identical electrical ratings and mechanical specifications. The SL1021A450RF is currently active in production, making it the appropriate selection for new designs and ongoing procurement requirements. Both parts maintain the same ECCN (EAR99) and HTSUS (8536.30.8000) classifications.

Frequently Asked Questions (FAQ)

Q: Can SL1021A450RF be used as a direct replacement for SL1024A450RG?

A: Yes. The SL1021A450RF is electrically and mechanically equivalent to the SL1024A450RG across all critical parameters: 450V DC spark-over voltage, 10kA impulse discharge current, 3-pole configuration, through-hole mounting, and identical package geometry.

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

A: The primary difference is product status. SL1024A450RG is obsolete, while SL1021A450RF is active. Both are manufactured by Littelfuse Inc. and share identical electrical and mechanical specifications.

Q: Are there any compliance differences between the two parts?

A: No. Both parts are ROHS3 compliant with MSL rating of 1 (Unlimited). They carry the same ECCN and HTSUS classifications.

Q: Does the packaging differ between these parts?

A: The electrical and mechanical specifications are identical. SL1024A450RG is listed with standard packaging, while SL1021A450RF is supplied in Tray packaging. The component itself maintains the same Axial Cylinder, 3 Lead (Radial Bend) form factor.