SLD16-18-B Equivalent & Substitute Parts

Part Overview

The SLD16-18-B is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for transient overvoltage protection in electronic circuits. This component features a 16V reverse standoff voltage with a 26V maximum clamping voltage and 196.2A peak pulse current capability. The part is classified as Obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement.

Substiute Parts

SLD16-18-B

Littelfuse Inc.In Stock: 759SLD16-18-B Datasheet

Current PartRFQ

SLD16-018

Littelfuse Inc.In Stock: 3941SLD16-018 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SLD16-18-B is determined by strict equivalence across the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 16V
• Voltage - Breakdown (Min): 18V
• Voltage - Clamping (Max) @ Ipp: 26V
• Current - Peak Pulse (10/1000µs): 196.2A
• Power - Peak Pulse: 5000W (5kW)
• Bidirectional Channels: 1
• Operating Temperature Range: -55°C ~ 175°C (TJ)
• Mounting Type: Through Hole
• Package / Case: P600, Axial
• Grade: Automotive
• Qualification: AEC-Q101

The SLD16-018 meets all these criteria and is classified as an Active product, making it a direct functional equivalent suitable for replacement applications.

Parameter Comparison

Engineering Selection Recommendations

The SLD16-018 is the direct equivalent for the obsolete SLD16-18-B. Both components are manufactured by Littelfuse Inc. within the SLD series and maintain identical electrical specifications and mechanical packaging. The SLD16-018 carries Active product status, ensuring continued availability and manufacturing support. Both parts meet AEC-Q101 automotive qualification and ROHS3 compliance requirements. The primary distinction is packaging format: SLD16-18-B is supplied in bulk, while SLD16-018 is available in Cut Tape (CT) format. For applications requiring the SLD16-18-B, the SLD16-018 provides full functional compatibility with no design modifications necessary.

Frequently Asked Questions (FAQ)

Q: Can the SLD16-018 directly replace the SLD16-18-B in existing designs?

A: Yes. The SLD16-018 is electrically and mechanically identical to the SLD16-18-B. Both components feature the same 16V reverse standoff voltage, 26V clamping voltage, 196.2A peak pulse current, and P600 axial through-hole package. No circuit modifications are required.

Q: What is the difference between SLD16-18-B and SLD16-018?

A: The primary difference is product status and packaging format. The SLD16-18-B is Obsolete, while the SLD16-018 is Active. The SLD16-018 is supplied in Cut Tape (CT) packaging, whereas the SLD16-18-B was supplied in bulk. All electrical and mechanical specifications are identical.

Q: Are both parts AEC-Q101 qualified?

A: Yes. Both the SLD16-18-B and SLD16-018 carry AEC-Q101 automotive qualification and are suitable for automotive applications requiring transient voltage suppression.

Q: What packaging considerations apply when switching from SLD16-18-B to SLD16-018?

A: The SLD16-018 is supplied in Cut Tape (CT) format rather than bulk. Both components use the same P600 axial through-hole package, so PCB footprints and mounting procedures remain unchanged. Tape packaging may affect procurement quantities and handling procedures.

Q: Are both parts RoHS compliant?

A: Yes. Both the SLD16-18-B and SLD16-018 are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), meeting environmental and regulatory requirements for modern electronics manufacturing.