SLD14-018 Equivalent & Substitute Parts

Part Overview

The SLD14-018 is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for transient overvoltage protection in electronic circuits. This through-hole component operates with a 14V reverse standoff voltage and provides 5000W peak pulse power dissipation capability. The part is actively produced and maintains AEC-Q101 automotive qualification with ROHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Substiute Parts

SLD14-018

Littelfuse Inc.In Stock: 980SLD14-018 Datasheet

Current PartRFQ

5KP14CA

Littelfuse Inc.In Stock: 31835KP14CA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SLD14-018 is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff: 14V (Typ)
• Voltage - Breakdown: 15.6V (Min)
• Voltage - Clamping: 23.2V (Max) @ Ipp
• Current - Peak Pulse: 219.8A (10/1000µs)
• Power - Peak Pulse: 5000W
• Package / Case: P600, Axial (Through Hole)
• Bidirectional Channels: 1
• Operating Temperature: -55°C to 175°C (TJ)

The 5KP14CA meets all electrical and mechanical requirements for direct substitution. Both parts are manufactured by Littelfuse Inc., share identical voltage and current ratings, and utilize the same P600 axial through-hole package. Packaging format differences (Tape & Reel versus Cut Tape) do not affect electrical compatibility or circuit performance.

Parameter Comparison

Engineering Selection Recommendations

Both the SLD14-018 and 5KP14CA are active production components from Littelfuse Inc. with identical electrical specifications and mechanical compatibility. Selection between these parts may be based on packaging availability and supply chain requirements. The SLD14-018 is supplied in Tape & Reel format, while the 5KP14CA is available in Cut Tape format. Both parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for automotive and general-purpose applications. Current inventory levels show 933 units for SLD14-018 and 3100 units for 5KP14CA, providing flexibility in procurement decisions.

Frequently Asked Questions (FAQ)

Q: Can the 5KP14CA be used as a direct replacement for the SLD14-018?

A: Yes. Both parts are electrically and mechanically equivalent. They share identical voltage ratings (14V reverse standoff, 23.2V clamping), current ratings (219.8A peak pulse), power dissipation (5000W), operating temperature range (-55°C to 175°C), and P600 axial through-hole package configuration.

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

A: Tape & Reel packaging is supplied on continuous carrier tape wound on reels for automated assembly processes. Cut Tape packaging is supplied as individual segments cut from the carrier tape. Both formats contain identical components; the difference is in handling and assembly method. Electrical performance is unaffected by packaging format.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the SLD14-018 and 5KP14CA maintain identical compliance status: ROHS3 compliant, REACH unaffected, and active product status. The SLD14-018 carries AEC-Q101 automotive qualification; this specification was not provided for the 5KP14CA in the available data.

Q: Can these parts be used interchangeably in circuit board designs?

A: Yes, provided the circuit board layout accommodates the P600 axial through-hole package. Both parts have identical pin configuration, voltage ratings, and current handling capacity. No circuit modifications are required for substitution.

Q: What determines whether a part qualifies as a substitute?

A: Substitution is based on equivalence across critical electrical parameters: reverse standoff voltage, breakdown voltage, clamping voltage, peak pulse current, peak pulse power, operating temperature range, and mechanical package compatibility. All these parameters must match exactly between the original and substitute part.