SLD36U-017-B Equivalent & Substitute Parts

Part Overview

The SLD36U-017-B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for transient overvoltage protection in electronic circuits. This component features a 36V reverse standoff voltage with a 58.1V maximum clamping voltage and 87.8A peak pulse current capability. The device is classified as Active product status and carries AEC-Q101 automotive qualification, making it suitable for demanding automotive and industrial applications. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Substiute Parts

SLD36U-017-B

Littelfuse Inc.In Stock: 1021SLD36U-017-B Datasheet

Current PartRFQ

5KP36A

Diotec SemiconductorIn Stock: 41685KP36A Datasheet

MFR RecommendedRFQ

5KP36A-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 82945KP36A-E3/54 Datasheet

MFR RecommendedRFQ

5KP36A-TP

Micro Commercial CoIn Stock: 26415KP36A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SLD36U-017-B are qualified based on the following electrical and mechanical criteria:

• Voltage - Reverse Standoff (Typ): 36V
• Voltage - Clamping (Max) @ Ipp: 58.1V
• Power - Peak Pulse: 5000W
• Unidirectional Channels: 1
• Type: Zener
• Mounting Type: Through Hole
• RoHS Status: ROHS3 Compliant

The identified substitutes maintain identical reverse standoff voltage, clamping voltage, and peak pulse power ratings. All substitute parts are Active status products with ROHS3 compliance. Variations in peak pulse current (86A to 87.8A) and package designations (P600 vs. R-6) remain within acceptable tolerance for functional equivalence in transient suppression applications.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory alignment with the original SLD36U-017-B. The 5KP36A-E3/54 (Vishay) and 5KP36A (Diotec) variants preserve the P600 axial package geometry, enabling direct mechanical interchange in existing through-hole PCB layouts. The 5KP36A-TP (Micro Commercial) utilizes an R-6 axial package, which maintains through-hole compatibility but requires verification of PCB pad spacing and lead diameter specifications for mechanical fit.

The Vishay 5KP36A-E3/54 maintains the full operating temperature range (-55 to 175°C) matching the original specification. The Diotec 5KP36A operates from -50°C, representing a 5°C reduction in minimum operating temperature; this remains suitable for most industrial and automotive applications within standard operating conditions.

Peak pulse current values across substitutes (86A to 87.8A) fall within a 1.8A variance, representing less than 2.1% deviation from the original specification and maintaining functional equivalence for transient suppression performance.

Frequently Asked Questions (FAQ)

Q: Can the 5KP36A-TP substitute be used if the original design specifies P600 package?

A: The 5KP36A-TP uses an R-6 axial package instead of P600. Both are through-hole axial configurations, but R-6 and P600 have different lead diameters and spacing. PCB pad specifications must be verified for mechanical compatibility before substitution.

Q: What is the significance of the -50°C minimum operating temperature on the Diotec 5KP36A?

A: The Diotec variant operates from -50°C versus -55°C on the original and other substitutes. For applications requiring operation below -50°C, the Vishay 5KP36A-E3/54 or original SLD36U-017-B must be specified.

Q: Are all substitute parts suitable for automotive applications?

A: The original SLD36U-017-B carries AEC-Q101 automotive qualification. Substitute parts are Active status products with ROHS3 compliance but do not explicitly list automotive qualification in the provided specifications. Application suitability should be confirmed against specific automotive qualification requirements.

Q: How do packaging differences affect circuit board design?

A: The P600 and R-6 packages are both axial through-hole configurations but differ in lead diameter and pitch. PCB design files must be updated to accommodate the selected package geometry. Diotec and Vishay variants maintain P600 compatibility with the original design.

Q: What is the peak pulse current tolerance across substitute options?

A: Peak pulse current ranges from 86A to 87.8A across substitutes, representing a maximum 2.1% variance. All values maintain the 5000W peak pulse power rating and 58.1V clamping voltage specification.