SLD17-018 Equivalent & Substitute Parts

Part Overview

The SLD17-018 is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for through-hole applications requiring bidirectional overvoltage protection. This component operates with a 17V reverse standoff voltage and provides 27.6V clamping at peak pulse current, delivering 5000W peak pulse power dissipation. The part maintains active product status and carries automotive-grade qualification under AEC-Q101, making it suitable for demanding protection applications across industrial and automotive environments. Equivalent and substitute parts are identified based on matching electrical characteristics and mechanical compatibility within the TVS diode category.

Substiute Parts

SLD17-018

Littelfuse Inc.In Stock: 1074SLD17-018 Datasheet

Current PartRFQ

5KP17CA

Littelfuse Inc.In Stock: 12065KP17CA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SLD17-018 is determined by strict equivalence across the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 17V
• Voltage - Breakdown (Min): 18.9V
• Voltage - Clamping (Max) @ Ipp: 27.6V
• Current - Peak Pulse (10/1000µs): 184.8A
• Power - Peak Pulse: 5000W (5kW)
• Bidirectional Channels: 1
• Package / Case: P600, Axial
• Mounting Type: Through Hole
• Operating Temperature Range: -55°C ~ 175°C (TJ)

The identified substitute part 5KP17CA matches all critical electrical parameters and mechanical specifications. Both components are manufactured by Littelfuse Inc., maintain active product status, and comply with ROHS3 and automotive-grade standards. The primary difference is packaging format: SLD17-018 is supplied in Tape & Reel (TR), while 5KP17CA is supplied in Cut Tape (CT). This distinction does not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The 5KP17CA is a direct electrical and mechanical equivalent to the SLD17-018. Both components are active products from Littelfuse Inc. with identical electrical specifications, operating temperature ranges, and package dimensions. Both maintain ROHS3 compliance and automotive-grade qualification under AEC-Q101.

Selection between these parts should be based on supply chain requirements and packaging format availability. The SLD17-018 is supplied in Tape & Reel format, suitable for high-volume automated assembly processes. The 5KP17CA is supplied in Cut Tape format, suitable for lower-volume or mixed-component assembly operations. No electrical performance difference exists between the two parts when installed in identical circuit configurations.

Frequently Asked Questions (FAQ)

Q: Can the 5KP17CA be used as a direct replacement for the SLD17-018?

A: Yes. Both components have identical electrical specifications, including reverse standoff voltage (17V), clamping voltage (27.6V), peak pulse current (184.8A), and power dissipation (5000W). Both use the P600 axial package and support through-hole mounting. The only difference is packaging format (Tape & Reel versus Cut Tape), which does not affect electrical or mechanical compatibility.

Q: What determines whether a TVS diode can substitute for the SLD17-018?

A: Substitution requires matching across all critical parameters: reverse standoff voltage, breakdown voltage, clamping voltage, peak pulse current, power rating, bidirectional channel configuration, package type, and operating temperature range. Any deviation in these parameters disqualifies a part as a direct equivalent.

Q: Does the packaging format (Tape & Reel vs. Cut Tape) affect circuit performance?

A: No. Packaging format affects only supply chain logistics and assembly process compatibility. Once installed on a circuit board, both formats deliver identical electrical performance.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the SLD17-018 and 5KP17CA carry automotive-grade qualification under AEC-Q101 and are ROHS3 compliant, meeting automotive industry standards for reliability and environmental compliance.

Q: What is the operating temperature range for these components?

A: Both components operate across -55°C to 175°C junction temperature (TJ), supporting applications in extreme thermal environments.