SLD11U-017 Equivalent & Substitute Parts

Part Overview

The SLD11U-017 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse, designed for transient overvoltage protection in electronic circuits. This component features an 11V reverse standoff voltage with an 18.2V maximum clamping voltage and peak pulse current capability of 280.2A at 5000W peak pulse power. The device is housed in a P600 axial through-hole package and is qualified to AEC-Q101 automotive standards. The SLD11U-017 is currently in active production status. Equivalent and substitute parts are identified to provide design flexibility, supply chain alternatives, and packaging options while maintaining electrical and mechanical compatibility.

Substiute Parts

SLD11U-017

LittelfuseIn Stock: 809SLD11U-017 Datasheet

Current PartRFQ

5KP11A

Littelfuse Inc.In Stock: 37495KP11A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SLD11U-017 are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 11V
• Voltage - Breakdown (Min): 12.2V
• Voltage - Clamping (Max) @ Ipp: 18.2V
• Current - Peak Pulse (10/1000µs): 280.2A
• Power - Peak Pulse: 5000W (5kW)
• Unidirectional Channels: 1
• Package / Case: P600, Axial
• Mounting Type: Through Hole
• Operating Temperature Range: -55°C ~ 175°C (TJ)

The 5KP11A meets all critical electrical parameters and mechanical specifications. Both devices are manufactured by Littelfuse, operate within identical voltage and current ratings, and utilize the same P600 axial through-hole package. The primary difference is packaging format: the SLD11U-017 is supplied in Tape & Reel (TR) format, while the 5KP11A is available in Cut Tape (CT) format. Both maintain ROHS3 compliance and MSL 1 rating.

Parameter Comparison

Engineering Selection Recommendations

Both the SLD11U-017 and 5KP11A are active production components manufactured by Littelfuse with identical electrical specifications and mechanical compatibility. Selection between these parts should be based on packaging and supply chain requirements:

SLD11U-017 is appropriate for high-volume automated assembly operations requiring Tape & Reel packaging format. This configuration optimizes pick-and-place machine compatibility and reduces component handling.

5KP11A is appropriate for lower-volume applications, manual assembly processes, or situations where Cut Tape packaging is preferred. This format provides flexibility in component quantity per reel.

Both devices carry ROHS3 compliance and AEC-Q101 automotive qualification (where applicable to the SLD11U-017). The electrical performance, thermal characteristics, and reliability profiles are equivalent across both part numbers.

Frequently Asked Questions (FAQ)

Q: Can the 5KP11A directly replace the SLD11U-017 in production?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format (Tape & Reel versus Cut Tape). PCB footprint, lead spacing, and component orientation are identical. No circuit design changes are required.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel packaging supplies components on a continuous reel suitable for automated pick-and-place assembly. Cut Tape packaging supplies the same components on tape segments, typically used for lower-volume or manual assembly processes. Both formats use the same P600 axial package.

Q: Are there any thermal or electrical performance differences between these parts?

A: No. Both the SLD11U-017 and 5KP11A operate at identical voltage ratings (11V reverse standoff, 18.2V clamping), current ratings (280.2A peak pulse), power dissipation (5000W), and temperature ranges (-55°C to 175°C). Performance is equivalent.

Q: Which part should be selected for new designs?

A: Selection depends on manufacturing volume and assembly method. For automated high-volume production, Tape & Reel format is standard. For lower volumes or manual assembly, Cut Tape format may be more practical. Both are active production parts with equivalent reliability.

Q: Are both parts RoHS compliant?

A: Yes. Both the SLD11U-017 and 5KP11A are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.