SL1024A350C Equivalent & Substitute Parts

Part Overview

The SL1024A350C is a Gas Discharge Tube (GDT) rated for 350V DC spark-over voltage with 10kA impulse discharge current capacity in a 3-pole configuration. This component is classified as Obsolete, making identification of suitable alternatives essential for ongoing system support and procurement planning. The SL1024A350C maintains full ROHS3 compliance and unlimited moisture sensitivity rating, supporting deployment in industrial and commercial protection applications.

Substiute Parts

SL1024A350C

Littelfuse Inc.In Stock: 1122SL1024A350C Datasheet

Current PartRFQ

SL1021A350C

Littelfuse Inc.In Stock: 967SL1021A350C Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SL1024A350C is determined by strict equivalence across the following critical parameters:

• Voltage - DC Spark Over (Nominal): 350 V
• Impulse Discharge Current (8/20µs): 10000A (10kA)
• Number of Poles: 3
• Package / Case: Cylinder No Lead, 3 Terminal
• Fail Short characteristic: No
• RoHS Status: ROHS3 Compliant

The SL1021A350C meets all substitution criteria. While classified as Active product status (versus Obsolete for the main part), it maintains identical electrical specifications, mechanical configuration, and regulatory compliance. The difference in series designation (SL1021A versus SL1024A) reflects manufacturing evolution within the Littelfuse GDT product line while preserving functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The SL1021A350C is the direct substitute for the obsolete SL1024A350C. Both components share identical electrical performance specifications (350V spark-over, 10kA discharge current) and mechanical form factor (3-pole cylinder configuration). The SL1021A350C carries Active product status, ensuring continued manufacturing support and supply chain availability. Both parts maintain ROHS3 compliance and EAR99 export classification, supporting equivalent regulatory and procurement requirements. The transition from SL1024A to SL1021A series represents standard product line evolution within Littelfuse's GDT portfolio without functional degradation.

Frequently Asked Questions (FAQ)

Q: Can the SL1021A350C directly replace the SL1024A350C in existing designs?

A: Yes. Both components are electrically and mechanically equivalent across all specified parameters: 350V DC spark-over voltage, 10kA impulse discharge current, 3-pole configuration, and identical package type. No circuit modifications are required.

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

A: The series designation change reflects product line evolution within Littelfuse's GDT offerings. The SL1021A represents the current active production series, while the SL1024A is obsolete. Functional specifications remain identical.

Q: Are there packaging differences between these parts?

A: The SL1024A350C is supplied in standard packaging, while the SL1021A350C is supplied in Tray packaging. Both use the same Cylinder No Lead, 3 Terminal physical form factor. Tray packaging is standard for active production components.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SL1024A350C and SL1021A350C are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Both carry EAR99 export classification and 8536.30.8000 HTSUS code.

Q: Why should I transition from SL1024A350C to SL1021A350C?

A: The SL1024A350C is classified as Obsolete, indicating discontinued manufacturing. The SL1021A350C is Active, ensuring long-term supply availability and manufacturing support. Functionally equivalent performance makes this transition straightforward for new procurements and design updates.