SL1024A230R Gas Discharge Tube - Equivalent & Substitute Parts

Part Overview

The SL1024A230R 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 used for transient overvoltage protection in industrial and telecommunications applications.

The SL1024A230R is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or field replacement requirements.

Substiute Parts

SL1024A230R

LittelfuseIn Stock: 1101SL1024A230R Datasheet

Current PartRFQ

SL1021A230R

Littelfuse Inc.In Stock: 20787SL1021A230R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SL1024A230R is based on electrical and mechanical parameter equivalence. The following criteria determine direct substitutability:

• Voltage - DC Spark Over (Nominal): 230 V
• Impulse Discharge Current (8/20µs): 10000A (10kA)
• Number of Poles: 3
• Mounting Type: Through Hole
• Package / Case: Axial Cylinder, 3 Lead (Radial Bend)
• Fail Short characteristic: No

The SL1021A230R meets all these criteria and is classified as an active product, making it a direct functional equivalent for the obsolete SL1024A230R.

Parameter Comparison

Engineering Selection Recommendations

The SL1021A230R is the direct substitute for the obsolete SL1024A230R. Both components share identical electrical ratings (230V spark-over, 10kA impulse discharge current), mechanical configuration (3-pole through-hole axial cylinder), and regulatory compliance (ROHS3, EAR99 classification).

The primary advantage of selecting SL1021A230R is its active product status, ensuring ongoing availability and supply chain support. Both parts maintain equivalent environmental compliance and moisture sensitivity ratings.

Frequently Asked Questions (FAQ)

Q: Can SL1021A230R be used as a direct replacement for SL1024A230R in existing designs?

A: Yes. The SL1021A230R is electrically and mechanically equivalent. It provides identical spark-over voltage (230V), impulse discharge current (10kA), pole configuration (3-pole), and mounting characteristics (through-hole axial cylinder).

Q: Are there packaging differences between these parts?

A: The SL1024A230R is supplied in standard packaging, while the SL1021A230R is supplied in tray packaging. Both use the same axial cylinder, 3-lead radial bend case format. Tray packaging is standard for active production parts and does not affect electrical or mechanical performance.

Q: What is the significance of the product status difference?

A: The SL1024A230R is obsolete and no longer manufactured. The SL1021A230R is an active product with ongoing production and supply availability. For new designs or field replacements, SL1021A230R is the recommended selection.

Q: Are both parts RoHS compliant?

A: Yes. Both SL1024A230R and SL1021A230R are ROHS3 compliant and carry identical environmental certifications.

Q: Do these parts have any moisture sensitivity concerns?

A: No. Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity limitations for storage or handling.