BAT42W Equivalent & Substitute Parts

Part Overview

The BAT42W is an active Schottky diode manufactured by Taiwan Semiconductor Corporation, designed for surface mount applications in the SOD-123 package. This component operates at 30V reverse voltage with a 200mA average rectified current rating and is suitable for small signal switching applications. The part is ROHS3 compliant and REACH unaffected, with 122,100 units currently in stock.

Equivalent and substitute parts are identified to provide design flexibility, support supply chain continuity, and enable component sourcing from alternative manufacturers while maintaining electrical and mechanical compatibility within specified parameters.

Substiute Parts

BAT42W

Taiwan Semiconductor CorporationIn Stock: 122144BAT42W Datasheet

Current PartRFQ

BAT42W_R1_00001

Panjit International Inc.In Stock: 39309BAT42W_R1_00001 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAT42W is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Voltage - DC Reverse (Vr) (Max): 30V
• Current - Average Rectified (Io): 200mA
• Voltage - Forward (Vf) (Max) @ If: 1V @ 200mA
• Technology: Schottky

Mechanical Parameters:

• Package / Case: SOD-123
• Mounting Type: Surface Mount

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

Substitute parts must match all electrical specifications, use identical packaging, and maintain equivalent compliance certifications. The BAT42W_R1_00001 manufactured by Panjit International Inc. satisfies all substitution criteria.

Parameter Comparison

Engineering Selection Recommendations

The BAT42W_R1_00001 from Panjit International Inc. is a direct electrical and mechanical equivalent to the BAT42W from Taiwan Semiconductor Corporation. Both components are active products with identical electrical specifications, SOD-123 surface mount packaging, and equivalent compliance certifications (ROHS3 Compliant, REACH Unaffected).

Selection between the two parts is based on availability, supply chain requirements, and procurement preferences. The BAT42W maintains 122,100 units in stock, while the BAT42W_R1_00001 has 39,220 units available. Both parts are suitable for applications requiring 30V reverse voltage, 200mA average rectified current, and small signal Schottky diode performance.

Frequently Asked Questions (FAQ)

Q: Can BAT42W_R1_00001 be used as a direct replacement for BAT42W?

A: Yes. The BAT42W_R1_00001 meets all electrical and mechanical specifications of the BAT42W. Both components feature identical voltage ratings (30V), current ratings (200mA), forward voltage characteristics (1V @ 200mA), and SOD-123 surface mount packaging. Compliance certifications are equivalent.

Q: Are there differences in reverse leakage current between these parts?

A: The BAT42W specifies reverse leakage current at 25V, while the BAT42W_R1_00001 specifies it at 30V. Both measure 500nA. This difference in measurement voltage does not affect substitution compatibility, as both values fall within acceptable operating parameters for the application.

Q: What is the significance of the SOD-123 package for substitution?

A: The SOD-123 package is a standardized surface mount package for small signal diodes. Both the BAT42W and BAT42W_R1_00001 use this identical package, ensuring mechanical compatibility in PCB layouts, reflow soldering processes, and automated assembly equipment without modification.

Q: Do both parts support the same operating temperature range?

A: Yes. Both the BAT42W and BAT42W_R1_00001 operate across the junction temperature range of -55°C to 125°C, ensuring equivalent thermal performance in industrial and commercial applications.

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

A: No. Both parts are ROHS3 compliant and REACH unaffected, meeting equivalent environmental and regulatory requirements for use in restricted substance directives and international trade classifications.