SLD60-018-B Equivalent & Substitute Parts

Part Overview

The SLD60-018-B is a bidirectional Zener transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc. in the SLD series. This through-hole component operates with a 60V reverse standoff voltage and provides 5000W peak pulse power protection. The part is actively produced and maintains full automotive-grade qualification under AEC-Q101 standards. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Substiute Parts

SLD60-018-B

Littelfuse Inc.In Stock: 986SLD60-018-B Datasheet

Current PartRFQ

5KP60CA

Littelfuse Inc.In Stock: 48005KP60CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SLD60-018-B is permissible with the 5KP60CA based on the following criteria:

Electrical Parameter Equivalence:

• Reverse standoff voltage: 60V (identical)
• Clamping voltage at peak pulse current: 96.8V (identical)
• Peak pulse current rating: 52.7A (identical)
• Peak pulse power rating: 5000W (identical)
• Operating temperature range: -55°C to 175°C (identical)
• Bidirectional channel configuration: 1 channel (identical)

Mechanical Compatibility:

• Package designation: P600, Axial (identical)
• Mounting type: Through Hole (identical)

Compliance & Status:

• Both parts maintain Active product status
• Both parts are RoHS3 compliant
• Both parts are REACH unaffected
• Both parts carry identical ECCN and HTSUS classifications

The 5KP60CA differs only in series designation (5KP vs. SLD) and packaging format (Cut Tape vs. Bulk), with a minor variance in minimum breakdown voltage (66.7V vs. 68.4V), which remains within acceptable substitution tolerance for this device category.

Parameter Comparison

*Breakdown voltage variance of 1.7V is within acceptable tolerance for TVS diode substitution in this voltage class.

Engineering Selection Recommendations

Both the SLD60-018-B and 5KP60CA maintain Active product status with full RoHS3 and REACH compliance. Selection between these parts should be based on:

Packaging Requirements: The SLD60-018-B is supplied in Bulk packaging, while the 5KP60CA is supplied in Cut Tape format. Choose based on procurement and assembly workflow requirements.

Inventory Availability: The SLD60-018-B has 958 pieces in stock; the 5KP60CA has 4700 pieces in stock. Availability may influence selection for time-sensitive applications.

Series Continuity: If design documentation or traceability requires maintenance of the SLD series designation, the SLD60-018-B is the appropriate choice. If series flexibility is permitted, the 5KP60CA is functionally equivalent.

Both parts are suitable for automotive applications under AEC-Q101 qualification and carry identical electrical performance specifications for the 60V, 5000W TVS protection function.

Frequently Asked Questions (FAQ)

Q: Can the 5KP60CA be used as a direct replacement for the SLD60-018-B in existing designs?

A: Yes. Both parts share identical electrical ratings (60V standoff, 96.8V clamp, 52.7A peak pulse, 5000W power), identical package designation (P600 Axial), and identical mounting type (Through Hole). The parts are functionally interchangeable from an electrical and mechanical standpoint.

Q: What is the difference between the SLD and 5KP series?

A: Both are Littelfuse TVS diode series with equivalent electrical performance in the 60V rating class. The series designation reflects product line organization within the manufacturer's portfolio. Electrical specifications and package compatibility are maintained across both series.

Q: Does the packaging format (Bulk vs. Cut Tape) affect electrical performance?

A: No. Packaging format affects only procurement, handling, and assembly processes. Electrical and thermal performance of the component itself is identical regardless of packaging format.

Q: Is the 1.7V difference in minimum breakdown voltage (68.4V vs. 66.7V) significant?

A: No. Both values fall within the acceptable tolerance band for 60V-class TVS diodes. The reverse standoff voltage (60V typical) and clamping voltage (96.8V maximum) are identical, which are the primary parameters controlling circuit protection performance.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the SLD60-018-B and 5KP60CA carry AEC-Q101 automotive qualification and maintain identical operating temperature ranges (-55°C to 175°C junction temperature).

Q: What compliance certifications apply to both parts?

A: Both parts are RoHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications.