BAT54SW Equivalent & Substitute Parts

Part Overview

The BAT54SW is a Schottky diode array in a 1 Pair Series Connection configuration, manufactured by Diotec Semiconductor. This component is rated for 30 V DC reverse voltage with 200 mA average rectified current per diode and is housed in an SC-70, SOT-323 surface mount package. The part is currently Active in product status with 248,378 pieces in stock. Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and application-specific requirements such as automotive qualification or enhanced temperature performance.

Substiute Parts

BAT54SW

Diotec SemiconductorIn Stock: 248428BAT54SW Datasheet

Current PartRFQ

BAT54SW,115

Nexperia USA Inc.In Stock: 1000475BAT54SW,115 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAT54SW is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

• Diode Configuration: 1 Pair Series Connection
• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max): 30 V
• Current - Average Rectified (Io) (per Diode): 200 mA
• Reverse Recovery Time (trr): 5 ns
• Package / Case: SC-70, SOT-323
• Mounting Type: Surface Mount

Allowable Variation Parameters:

• Voltage - Forward (Vf) (Max) @ If: Within component design tolerance
• Current - Reverse Leakage @ Vr: Within component design tolerance
• Operating Temperature - Junction (Max): Equal or higher ratings acceptable
• Compliance and Certification: Additional qualifications acceptable

The BAT54SW,115 manufactured by Nexperia USA Inc. meets all mandatory equivalence parameters and qualifies as a direct substitute. This part maintains identical electrical ratings for reverse voltage, forward current, and switching characteristics while offering enhanced temperature performance and automotive-grade qualification.

Parameter Comparison

Engineering Selection Recommendations

BAT54SW (Diotec Semiconductor) is the primary component for applications requiring standard industrial-grade Schottky diode arrays with 30 V reverse voltage and 200 mA current rating in SOT-323 packaging. This part is suitable for general-purpose rectification, switching, and signal detection circuits where automotive qualification is not required.

BAT54SW,115 (Nexperia USA Inc.) is the recommended substitute for applications requiring:

• Automotive-grade reliability with AEC-Q101 qualification
• Extended operating temperature range up to 150°C
• Explicit ROHS3 compliance documentation
• Enhanced regulatory traceability through REACH compliance
• Lower reverse leakage current characteristics

Both parts maintain identical core electrical specifications for reverse voltage, forward current, and switching speed. The Nexperia variant offers superior thermal performance and compliance certifications suitable for automotive and regulated industrial applications. Selection between these parts depends on application requirements for automotive qualification and temperature performance rather than functional electrical differences.

Frequently Asked Questions (FAQ)

Q: Can BAT54SW,115 be used as a direct replacement for BAT54SW in existing designs?

A: Yes. Both parts share identical diode configuration, Schottky technology, 30 V reverse voltage rating, 200 mA current rating, 5 ns reverse recovery time, and SC-70 SOT-323 package. Pinout and footprint are identical. The BAT54SW,115 variant includes automotive qualification and extended temperature rating, making it suitable for all applications where the original BAT54SW is specified.

Q: What is the difference in forward voltage between these parts?

A: The BAT54SW (Diotec) specifies 650 mV maximum forward voltage at 100 mA, while the BAT54SW,115 (Nexperia) specifies 800 mV maximum at the same current. This 150 mV difference reflects manufacturing process variations between suppliers. Both values are within acceptable Schottky diode performance ranges for this current class.

Q: Are there package or mounting differences between these parts?

A: No. Both parts use identical SC-70, SOT-323 surface mount packaging. PCB footprints, solder pad layouts, and mounting procedures are identical. No design modifications are required when substituting between these parts.

Q: Which part should be selected for automotive applications?

A: The BAT54SW,115 (Nexperia) is qualified to AEC-Q101 automotive standards and carries automotive-grade designation. This part is required for applications subject to automotive reliability and qualification requirements. The BAT54SW (Diotec) does not carry automotive qualification.

Q: What is the significance of the higher maximum junction temperature rating on the Nexperia part?

A: The BAT54SW,115 is rated to 150°C maximum junction temperature compared to 125°C for the Diotec part. This 25°C higher rating provides additional thermal margin in high-temperature operating environments and reflects the Nexperia part's automotive-grade design. For applications operating near or above 125°C, the Nexperia variant is the appropriate selection.

Q: Are there inventory or lead time considerations between these parts?

A: The BAT54SW (Diotec) has 248,378 pieces in stock. The BAT54SW,115 (Nexperia) has 1,000,400 pieces in stock. Both parts are Active in product status with established supply chains. The Nexperia variant offers significantly higher inventory availability.

Q: Do these parts have different compliance certifications?

A: The BAT54SW,115 (Nexperia) is explicitly ROHS3 compliant with MSL 1 (Unlimited) rating and REACH Unaffected status. The BAT54SW (Diotec) lists RoHS Status as Not Applicable and REACH Status as Vendor Undefined. For applications requiring documented compliance with environmental and regulatory standards, the Nexperia variant provides explicit certification.