BAT42LSYL Equivalent & Substitute Parts

Part Overview

The BAT42LSYL is an active Schottky diode manufactured by Nexperia USA Inc., designed for surface mount applications in the SOD-882 package. This component operates at a maximum reverse voltage of 40 V with an average rectified current rating of 200 mA, making it suitable for small-signal rectification and switching applications. The part is classified as a small-signal Schottky diode with forward voltage characteristics of 600 mV at 200 mA. Identification of equivalent and substitute parts is necessary to support design flexibility, manage supply chain continuity, and accommodate specific application requirements such as automotive qualification or alternative sourcing options.

Substiute Parts

BAT42LSYL

Nexperia USA Inc.In Stock: 10676BAT42LSYL Datasheet

Current PartRFQ

BAT42LS-QYL

Nexperia USA Inc.In Stock: 10770BAT42LS-QYL Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAT42LSYL is determined by strict equivalence across the following critical electrical and mechanical parameters:

• Reverse Voltage Rating: 40 V maximum
• Average Rectified Current: 200 mA
• Forward Voltage Drop: 600 mV at 200 mA
• Reverse Leakage Current: 10 µA at 40 V
• Junction Capacitance: 20 pF at 1 V, 1 MHz
• Package Type: SOD-882 (DFN1006BD-2)
• Mounting Configuration: Surface Mount
• Technology Classification: Schottky diode, small-signal category
• Compliance Standards: ROHS3 Compliant, REACH Unaffected

Substitute parts must match all electrical specifications and physical package requirements. Variations in manufacturing qualification (such as automotive-grade certification) do not alter the core electrical substitution relationship but may introduce additional compliance benefits for specific applications.

Parameter Comparison

Engineering Selection Recommendations

The BAT42LS-QYL is a direct parametric equivalent to the BAT42LSYL. Both components are manufactured by Nexperia USA Inc. and share identical electrical specifications, package configuration, and compliance certifications. Both parts maintain active product status and are ROHS3 compliant with REACH unaffected designation.

The BAT42LS-QYL carries additional automotive-grade qualification (AEC-Q101) and automotive designation, which represents an enhancement to the base specification rather than a deviation. This qualification is applicable for designs requiring automotive-level reliability and traceability but does not alter the core electrical performance or mechanical compatibility.

Selection between these parts should be based on application requirements. For general-purpose small-signal rectification applications, either part is suitable. For automotive or safety-critical applications where AEC-Q101 qualification is mandated, the BAT42LS-QYL is the appropriate choice. Both parts are available in active inventory and support identical PCB layouts and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can BAT42LS-QYL be used as a direct replacement for BAT42LSYL in existing designs?

A: Yes. The BAT42LS-QYL is electrically and mechanically equivalent to the BAT42LSYL. Both components share identical reverse voltage ratings (40 V), rectified current capacity (200 mA), forward voltage characteristics (600 mV @ 200 mA), and package configuration (SOD-882). No circuit modifications or PCB layout changes are required.

Q: What is the difference between BAT42LSYL and BAT42LS-QYL?

A: The primary difference is that BAT42LS-QYL carries automotive-grade qualification (AEC-Q101) and automotive designation, while BAT42LSYL does not. All electrical parameters, thermal ratings, and physical package specifications are identical. The automotive qualification provides additional process controls and reliability documentation suitable for automotive applications.

Q: Are both parts available in the same packaging format?

A: Yes. Both BAT42LSYL and BAT42LS-QYL are supplied in Tape & Reel (TR) packaging with SOD-882 package type (DFN1006BD-2 supplier device package). Both components are surface mount devices with identical footprints and mounting requirements.

Q: Do both parts meet the same compliance standards?

A: Yes. Both BAT42LSYL and BAT42LS-QYL are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity levels (MSL 1 - Unlimited). Both parts are classified as EAR99 for export control purposes.

Q: What is the maximum junction temperature for both parts?

A: Both components are rated for a maximum junction temperature of 150°C. This specification is identical across both part numbers.

Q: Can these parts be used interchangeably in high-reliability applications?

A: For applications requiring automotive-level reliability and traceability, BAT42LS-QYL is the appropriate selection due to its AEC-Q101 qualification. For general-purpose applications without automotive requirements, both parts are equivalent. Application requirements should determine the selection.