SL1024A230RG Gas Discharge Tube - Equivalent & Substitute Parts

Part Overview

The SL1024A230RG is a 3-pole gas discharge tube (GDT) rated for 230V DC spark-over voltage with 10kA impulse discharge current capacity. Designed for through-hole mounting in axial cylinder configuration, this component is classified as obsolete. Due to its obsolete status, identifying active equivalent parts is essential for ongoing design support, maintenance, and new production requirements.

Substiute Parts

SL1024A230RG
Littelfuse Inc.In Stock: 1021SL1024A230RG Datasheet
SL1024A230RG
Current Part
SL1021A230RF
Littelfuse Inc.In Stock: 710SL1021A230RF Datasheet
SL1021A230RF
Direct

Key Parameters

Parameter Value
Voltage - DC Spark Over (Nominal) 230 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 SL1024A230RG is determined by strict equivalence across the following critical parameters:

  • Voltage Rating: 230V DC spark-over voltage (nominal)
  • Discharge Current: 10kA impulse discharge current (8/20µs waveform)
  • Pole Configuration: 3-pole architecture
  • Fail Mode: Short-circuit failure characteristic
  • Mounting Technology: Through-hole, axial cylinder package with radial bend leads
  • Environmental Compliance: ROHS3 compliance and MSL 1 rating

The SL1021A230RF meets all these criteria and represents the active equivalent for the obsolete SL1024A230RG.

Parameter Comparison

Parameter SL1024A230RG (Main Part) SL1021A230RF (Substitute)
Manufacturer Littelfuse Inc. Littelfuse Inc.
Series SL1024A SL1021A
Product Status Obsolete Active
Voltage - DC Spark Over (Nom) 230 V 230 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 SL1021A230RF is the direct functional equivalent for the obsolete SL1024A230RG. Both components share identical electrical specifications (230V spark-over, 10kA discharge current), mechanical configuration (3-pole through-hole axial cylinder), and regulatory compliance (ROHS3, EAR99 classification).

The primary distinction is product status: SL1024A230RG is obsolete, while SL1021A230RF maintains active production status. For new designs, maintenance applications, or production continuity, the SL1021A230RF is the appropriate selection. Both components carry equivalent environmental ratings (MSL 1) and export classifications, ensuring no compliance barriers to substitution.

Frequently Asked Questions (FAQ)

Q: Can the SL1021A230RF directly replace the SL1024A230RG in existing designs?

A: Yes. Both components are electrically and mechanically identical across all specified parameters: 230V spark-over voltage, 10kA impulse discharge current, 3-pole configuration, through-hole mounting, and axial cylinder package geometry. No circuit modifications are required.

Q: What is the difference between the SL1024A series and SL1021A series?

A: The series designation reflects product line evolution within Littelfuse's GDT portfolio. The SL1021A represents the current active production series, while SL1024A is obsolete. Electrical and mechanical specifications remain equivalent for the 230V/10kA ratings.

Q: Are there packaging differences between these parts?

A: The SL1024A230RG is supplied in standard packaging, while the SL1021A230RF is supplied in tray packaging. Both use identical axial cylinder, 3-lead radial bend package geometry. Tray packaging is standard for active production components and does not affect electrical or mechanical performance.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SL1024A230RG and SL1021A230RF are ROHS3 compliant, carry MSL 1 (unlimited moisture sensitivity), and share the same ECCN (EAR99) and HTSUS classifications (8536.30.8000).

Q: Is the SL1021A230RF available in inventory?

A: The SL1021A230RF is an active product with current inventory availability (649 pcs new original in stock). The SL1024A230RG, being obsolete, has limited remaining inventory (989 pcs).

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