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SD101BWS-G3-08 Equivalent & Substitute Parts
Part Overview
The SD101BWS-G3-08 is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 50 V DC reverse voltage and 30 mA average rectified current in a surface mount SOD-323 package. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to component availability, supply chain considerations, or design flexibility within specified parameter ranges.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - DC Reverse (Vr) (Max) | 50 | V |
| Current - Average Rectified (Io) | 30 | mA |
| Voltage - Forward (Vf) (Max) @ If | 950 mV @ 15 mA | mV |
| Reverse Recovery Time (trr) | 1 | ns |
| Current - Reverse Leakage @ Vr | 200 nA @ 40 V | nA |
| Capacitance @ Vr, F | 2.1 pF @ 0V, 1MHz | pF |
| Package / Case | SC-76, SOD-323 | — |
| Operating Temperature - Junction | -55 to 125 | °C |
| Technology | Schottky | — |
| Mounting Type | Surface Mount | — |
Substitute Part Grouping Explanation
Substitution of the SD101BWS-G3-08 is determined by the following critical parameters:
Voltage Rating Compatibility: The main part is rated for 50 V DC reverse voltage. Substitute parts with 40 V ratings operate within a lower voltage envelope and are suitable for applications where the circuit voltage does not exceed 40 V. The NSVRB751V40T1G, rated at 30 V, is suitable only for circuits with maximum voltages of 30 V or lower.
Current Rating Compatibility: The main part carries 30 mA average rectified current. Substitute parts with equal or higher current ratings (250 mA, 300 mA, 350 mA, 500 mA, 750 mA, or 1 A) are electrically compatible for this application, as they can safely conduct the required 30 mA load.
Package Compatibility: All substitute parts use the SOD-323 surface mount package (SC-76), ensuring mechanical and footprint compatibility with the original design.
Technology Consistency: All substitute parts employ Schottky diode technology, maintaining functional equivalence in rectification characteristics.
Compliance and Certification: All substitute parts are RoHS3 compliant, REACH unaffected, and carry identical ECCN and HTSUS classifications, ensuring regulatory and supply chain compatibility.
Parameter Comparison
| Part Number | Manufacturer | Vr (Max) [V] | Io [mA] | Vf (Max) [mV] | Package | Temp Range [°C] | RoHS3 |
|---|---|---|---|---|---|---|---|
| SD101BWS-G3-08 | Vishay | 50 | 30 | 950 @ 15 mA | SOD-323 | -55 to 125 | Yes |
| 1PS76SB21,115 | Nexperia USA Inc. | 40 | 200 | 550 @ 200 mA | SOD-323 | — | Yes |
| B0540WS-7 | Diodes Incorporated | 40 | 500 | 550 @ 500 mA | SOD-323 | -40 to 125 | Yes |
| BAT165E6327HTSA1 | Infineon Technologies | 40 | 750 | 740 @ 750 mA | SOD-323 | — | Yes |
| BAT48JFILM | STMicroelectronics | 40 | 350 | 750 @ 200 mA | SOD-323 | -40 to 150 | Yes |
| BAT54JFILM | STMicroelectronics | 40 | 300 | 900 @ 100 mA | SOD-323 | -40 to 150 | Yes |
| NSR0240HT1G | onsemi | 40 | 250 | 710 @ 200 mA | SOD-323 | -55 to 150 | Yes |
| NSR0340HT1G | onsemi | 40 | 250 | 590 @ 200 mA | SOD-323 | -55 to 150 | Yes |
| NSVRB751V40T1G | onsemi | 30 | 30 | 370 @ 1 mA | SOD-323 | -55 to 150 | Yes |
| PMEG4005AEA,115 | Nexperia USA Inc. | 40 | 500 | 470 @ 500 mA | SOD-323 | — | Yes |
| PMEG4010BEA,115 | Nexperia USA Inc. | 40 | 1000 | 640 @ 1 A | SOD-323 | — | Yes |
Engineering Selection Recommendations
Voltage Derating Consideration: The SD101BWS-G3-08 operates at 50 V maximum reverse voltage. Substitute parts rated at 40 V are suitable for circuits where the maximum applied voltage does not exceed 40 V. The NSVRB751V40T1G, rated at 30 V, is restricted to applications with maximum voltages of 30 V or lower.
Current Margin: All substitute parts with current ratings of 200 mA or higher provide adequate margin for the 30 mA requirement of the original part. Parts with 250 mA, 300 mA, 350 mA, 500 mA, 750 mA, and 1 A ratings are electrically interchangeable for this application.
Temperature Range: The original part operates from -55°C to 125°C. Substitute parts from onsemi (NSR0240HT1G, NSR0340HT1G, NSVRB751V40T1G) and STMicroelectronics (BAT48JFILM, BAT54JFILM) extend the upper temperature limit to 150°C, providing enhanced thermal performance. Diodes Incorporated B0540WS-7 maintains the -40°C lower limit.
Compliance Status: All substitute parts maintain RoHS3 compliance, REACH unaffected status, and identical ECCN/HTSUS classifications, ensuring regulatory and procurement compatibility.
Product Status: All substitute parts are classified as Active, confirming ongoing manufacturer support and availability.
Frequently Asked Questions (FAQ)
Q: Can I substitute a 40 V rated diode for the 50 V SD101BWS-G3-08?
A: Yes, provided the circuit maximum voltage does not exceed 40 V. The 40 V rating represents the maximum reverse voltage the substitute part can withstand. If your circuit operates at or below 40 V, parts such as B0540WS-7, BAT165E6327HTSA1, BAT48JFILM, BAT54JFILM, NSR0240HT1G, NSR0340HT1G, PMEG4005AEA,115, and PMEG4010BEA,115 are electrically compatible.
Q: What is the significance of current rating differences between the main part and substitutes?
A: The SD101BWS-G3-08 is rated for 30 mA average rectified current. Substitute parts with higher current ratings (200 mA, 250 mA, 300 mA, 350 mA, 500 mA, 750 mA, or 1 A) can safely conduct 30 mA without exceeding their design limits. Higher current ratings do not affect compatibility; they indicate greater current-handling capacity.
Q: Are all substitute parts in the same SOD-323 package?
A: Yes. All substitute parts use the SC-76 SOD-323 surface mount package, ensuring identical footprint and mechanical compatibility with the original design. No PCB layout modifications are required.
Q: Does forward voltage (Vf) variation affect substitution?
A: Forward voltage differences exist among substitute parts due to manufacturing variations and design differences. The SD101BWS-G3-08 specifies 950 mV maximum at 15 mA. Substitute parts show lower Vf values (370 mV to 900 mV at various test currents), which reduce power dissipation. Circuit designs that depend on specific forward voltage characteristics should be evaluated for each substitute.
Q: Which substitute part most closely matches the original SD101BWS-G3-08 specifications?
A: The NSVRB751V40T1G from onsemi matches the 30 mA current rating exactly and provides identical SOD-323 packaging. However, it is rated at 30 V maximum reverse voltage, limiting its use to circuits with maximum voltages of 30 V or lower. For circuits requiring the full 50 V capability, no substitute maintains all original specifications; selection depends on actual circuit voltage requirements.
Q: Are there automotive-qualified alternatives?
A: The NSVRB751V40T1G carries AEC-Q101 automotive qualification. Other substitute parts do not list automotive qualification in the provided specifications.
Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging?
A: Both are surface mount delivery formats. Tape & Reel (TR) is supplied on continuous tape for automated assembly equipment. Cut Tape (CT) is supplied in shorter tape segments. Both formats contain identical components; the difference is in delivery and handling method. Verify your assembly process requirements before selecting based on packaging format.
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