SD101BWS-7 Schottky Diode Equivalent & Substitute Parts

Part Overview

The SD101BWS-7 is a Schottky rectifier diode manufactured by Diodes Incorporated, rated for 50 V DC reverse voltage and 15 mA average rectified current in a surface mount SOD-323 package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing design requirements and production needs. Suitable alternatives must maintain electrical compatibility within the specified voltage and current parameters while accommodating packaging and compliance requirements.

Substiute Parts

SD101BWS-7

Diodes IncorporatedIn Stock: 13127SD101BWS-7 Datasheet

Current PartRFQ

SD101BWS-7-F

Diodes IncorporatedIn Stock: 3216SD101BWS-7-F Datasheet

DirectRFQ

BAS70JFILM

STMicroelectronicsIn Stock: 46580BAS70JFILM Datasheet

MFR RecommendedRFQ

BAT54JFILM

STMicroelectronicsIn Stock: 505116BAT54JFILM Datasheet

MFR RecommendedRFQ

NSVRB751V40T1G

onsemiIn Stock: 32901NSVRB751V40T1G Datasheet

MFR RecommendedRFQ

SD101BWS-TP

Micro Commercial CoIn Stock: 3345SD101BWS-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SD101BWS-7 is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Technology: Schottky rectifier diode
• Package / Case: SC-76, SOD-323 (surface mount)
• Voltage - DC Reverse (Vr) (Max): Must equal or exceed 50 V
• Current - Average Rectified (Io): Must equal or exceed 15 mA
• Mounting Type: Surface Mount

Acceptable Variation Parameters:

• Voltage - Forward (Vf): Variations within typical Schottky diode range
• Reverse Recovery Time (trr): Variations acceptable for small signal applications
• Current - Reverse Leakage: Variations acceptable within Schottky specifications
• Capacitance: Variations acceptable for non-critical RF applications
• Operating Temperature Range: May differ if application requirements are met

Substitute parts are grouped into two categories: Direct Equivalents (identical electrical ratings) and Functional Substitutes (higher ratings with compatible package and technology).

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent Substitutes (Identical Electrical Ratings):

SD101BWS-7-F and SD101BWS-TP are direct electrical equivalents to the SD101BWS-7, maintaining identical voltage (50 V), current (15 mA), forward voltage drop (950 mV @ 15 mA), and reverse recovery time (1 ns) specifications. Both parts are in active production status. SD101BWS-7-F is manufactured by Diodes Incorporated with ROHS3 compliance and Cut Tape & Digi-Reel packaging. SD101BWS-TP is manufactured by Micro Commercial Co with ROHS3 compliance and Tape & Reel packaging. Selection between these two depends on packaging requirements and supplier availability.

Functional Substitutes (Higher Ratings, Compatible Package):

BAS70JFILM (STMicroelectronics) provides higher voltage (70 V) and current (70 mA) ratings while maintaining SOD-323 package compatibility. This part is suitable for applications where the original 50 V / 15 mA ratings are marginal or where design margin is required. ROHS3 compliant and in active production.

BAT54JFILM (STMicroelectronics) provides significantly higher current capacity (300 mA) at lower voltage (40 V). This part is suitable only for applications where the 50 V reverse voltage requirement can be relaxed. ROHS3 compliant and in active production with high inventory availability.

NSVRB751V40T1G (onsemi) provides lower voltage (30 V) and current (30 mA) ratings. This part is not suitable as a substitute for the SD101BWS-7 due to insufficient reverse voltage rating. However, it is included for reference as an automotive-qualified alternative (AEC-Q101) for applications with lower voltage requirements.

Compliance Considerations:

The original SD101BWS-7 is RoHS non-compliant. All recommended substitutes (SD101BWS-7-F, SD101BWS-TP, BAS70JFILM, BAT54JFILM, NSVRB751V40T1G) are ROHS3 compliant, meeting current regulatory requirements for new designs and production.

Frequently Asked Questions (FAQ)

Q: Can SD101BWS-7-F be used as a direct replacement for SD101BWS-7?

A: Yes. SD101BWS-7-F is a direct electrical equivalent manufactured by Diodes Incorporated with identical voltage (50 V), current (15 mA), forward voltage (950 mV @ 15 mA), and reverse recovery time (1 ns) specifications. The primary difference is product status (active vs. discontinued) and packaging format (Cut Tape & Digi-Reel vs. original packaging). ROHS3 compliance is an additional benefit.

Q: What is the difference between SD101BWS-TP and SD101BWS-7-F?

A: Both parts are direct electrical equivalents with identical ratings. The differences are manufacturer (Micro Commercial Co vs. Diodes Incorporated) and packaging format (Tape & Reel vs. Cut Tape & Digi-Reel). Selection depends on supplier availability and packaging requirements for your production process.

Q: Can BAS70JFILM replace SD101BWS-7 in all applications?

A: BAS70JFILM is electrically compatible for applications operating at or below 50 V and 15 mA, as it exceeds these ratings (70 V / 70 mA). However, the higher reverse recovery time specification and different forward voltage characteristics may affect circuit performance in timing-sensitive applications. Verification of circuit operation is required for critical applications.

Q: Why is NSVRB751V40T1G listed if it has lower voltage rating than SD101BWS-7?

A: NSVRB751V40T1G is included for reference only. Its 30 V reverse voltage rating is insufficient for applications requiring the SD101BWS-7's 50 V capability. This part is suitable only for designs with lower voltage requirements. It is automotive-qualified (AEC-Q101), making it relevant for automotive applications with reduced voltage specifications.

Q: Are all substitute parts available in SOD-323 package?

A: Yes. All listed substitute parts use the SC-76, SOD-323 surface mount package, ensuring mechanical and electrical compatibility with existing PCB layouts and assembly processes.

Q: What is the impact of RoHS compliance on part selection?

A: The original SD101BWS-7 is RoHS non-compliant. All substitute parts listed are ROHS3 compliant, meeting current environmental and regulatory requirements. For new designs and production, ROHS3-compliant substitutes are required to meet regulatory standards in most markets.

Q: Can BAT54JFILM be used as a substitute for SD101BWS-7?

A: BAT54JFILM is not recommended as a direct substitute due to its 40 V reverse voltage rating, which is below the SD101BWS-7's 50 V requirement. Use this part only in applications where the 50 V reverse voltage specification can be relaxed. The significantly higher current rating (300 mA) is not a limiting factor for applications requiring only 15 mA.

Q: What are the key parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: (1) Technology (Schottky), (2) Package (SC-76, SOD-323), (3) Voltage - DC Reverse (Vr) rating must equal or exceed 50 V, and (4) Current - Average Rectified (Io) rating must equal or exceed 15 mA. All listed substitutes meet these criteria except NSVRB751V40T1G, which has insufficient voltage rating.