SL1024A600RF Gas Discharge Tube - Equivalent & Substitute Parts

Part Overview

The SL1024A600RF is a 3-pole gas discharge tube (GDT) rated for 600V DC spark-over voltage with 10kA impulse discharge current capacity. Designed for through-hole mounting in axial cylinder configuration, this component is used for transient overvoltage protection in industrial and telecommunications applications.

The SL1024A600RF is classified as obsolete. Locating active equivalent models is necessary to ensure long-term component availability, supply chain continuity, and access to current manufacturing support and certifications.

Substiute Parts

SL1024A600RF
Littelfuse Inc.In Stock: 736SL1024A600RF Datasheet
SL1024A600RF
Current Part
SL1021A600RF
Littelfuse Inc.In Stock: 845SL1021A600RF Datasheet
SL1021A600RF
Direct

Key Parameters

Parameter Value
Voltage - DC Spark Over (Nominal) 600 V
Impulse Discharge Current (8/20µs) 10000A (10kA)
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)

Substitute Part Grouping Explanation

Substitution of the SL1024A600RF is determined by strict equivalence across the following electrical and mechanical parameters:

  • Voltage - DC Spark Over (Nominal): 600 V
  • 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)
  • RoHS Status: ROHS3 Compliant
  • Moisture Sensitivity Level (MSL): 1 (Unlimited)

The SL1021A600RF meets all substitution criteria. Both components are manufactured by Littelfuse Inc. and share identical electrical ratings, mechanical configuration, and environmental compliance specifications. The primary distinction is product status: SL1024A600RF is obsolete, while SL1021A600RF is active.

Parameter Comparison

Parameter SL1024A600RF SL1021A600RF
Manufacturer Littelfuse Inc. Littelfuse Inc.
Series SL1024A SL1021A
Product Status Obsolete Active
Voltage - DC Spark Over (Nominal) 600 V 600 V
Impulse Discharge Current (8/20µs) 10000A (10kA) 10000A (10kA)
Number of Poles 3 3
Fail Short Yes Yes
Mounting Type Through Hole Through Hole
Package / Case Axial Cylinder, 3 Lead (Radial Bend) Axial Cylinder, 3 Lead (Radial Bend)
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited)
ECCN EAR99 EAR99
HTSUS 8536.30.8000 8536.30.8000

Engineering Selection Recommendations

The SL1021A600RF is the direct substitute for the SL1024A600RF. Both components are manufactured by Littelfuse Inc. and are electrically and mechanically identical across all specified parameters.

Selection of SL1021A600RF is supported by:

  • Active product status with ongoing manufacturing support
  • ROHS3 compliance certification
  • Identical electrical performance (600V spark-over, 10kA impulse discharge)
  • Identical mechanical configuration (3-pole, through-hole, axial cylinder package)
  • Equivalent environmental ratings (MSL 1, unlimited moisture exposure)
  • Matching export classification (EAR99) and tariff codes (HTSUS 8536.30.8000)

Frequently Asked Questions (FAQ)

Q: Can SL1021A600RF be used as a direct replacement for SL1024A600RF?

A: Yes. The SL1021A600RF is electrically and mechanically equivalent to the SL1024A600RF across all specified parameters, including voltage rating, discharge current capacity, pole configuration, mounting type, and package geometry.

Q: What is the difference between SL1024A600RF and SL1021A600RF?

A: The components are functionally identical. The primary difference is product status: SL1024A600RF is obsolete, while SL1021A600RF is active and supported by the manufacturer.

Q: Are there any packaging differences between these parts?

A: Both components use identical packaging: Axial Cylinder, 3 Lead (Radial Bend) configuration. The SL1024A600RF is supplied in standard packaging, while SL1021A600RF is supplied in tray packaging. Both are suitable for through-hole PCB assembly.

Q: Do both parts meet RoHS compliance requirements?

A: Yes. Both SL1024A600RF and SL1021A600RF are ROHS3 compliant and suitable for applications requiring RoHS certification.

Q: What is the moisture sensitivity level for these components?

A: Both components have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

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