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B0520WS
EVVO Semi
RECTIFIER DIODE SCHOTTKY 20V 0.5
185156 Pcs New Original In Stock
Diode 20 V 500mA Surface Mount SOD-323
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5.0 / 5.0
- (149 Ratings)
B0520WS
Product Overview
13237328
DiGi Electronics Part Number
B0520WS-DGManufacturer
EVVO Semi
B0520WS
Description
RECTIFIER DIODE SCHOTTKY 20V 0.5Inventory
185156 Pcs New Original In Stock
Diode 20 V 500mA Surface Mount SOD-323
Quantity
Minimum 1
Minimum 1
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B0520WS Technical Specifications
Category
Diodes, Rectifiers, Single Diodes
Packaging
Cut Tape (CT) & Digi-Reel®
Series
-
Product Status
Active
Technology
Schottky
Voltage - DC Reverse (Vr) (Max)
20 V
Current - Average Rectified (Io)
500mA
Voltage - Forward (Vf) (Max) @ If
390 mV @ 500 mA
Speed
Fast Recovery =< 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr
250 µA @ 20 V
Capacitance @ Vr, F
-
Mounting Type
Surface Mount
Package / Case
SC-76, SOD-323
Supplier Device Package
SOD-323
Operating Temperature - Junction
-55°C ~ 125°C
Datasheet & Documents
Datasheets
Download B0520WS Product Specification (PDF)
HTML Datasheet
B0520WS-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
ECCN
EAR99
HTSUS
8541.10.0080
Additional Information
Other Names
5272-B0520WSDKR
5272-B0520WSCT
5272-B0520WSTR
Standard Package
3,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
Bei DiGi Electronics erhält man nicht nur schnelle Lieferungen, sondern auch einen Support, der sich wirklich kümmert.
Dec 02, 2025
The billing process was transparent and hassle-free, supporting a smooth checkout.
Dec 02, 2025
Their timely handling of after-sales issues reflects their dedication to customer care.
Dec 02, 2025
Fast shipping and high-quality finishes make every purchase a pleasure.
Dec 02, 2025
Receiving my orders quickly has helped streamline my workflow immensely.
Dec 02, 2025
Their after-sales team is diligent, always ready to assist even after the initial purchase.
Dec 02, 2025
I’ve had positive experiences with their after-sales team, highly recommended.
Dec 02, 2025
I appreciate the seamless support and quality assurance they provide.
Dec 02, 2025
The value for money at DiGi Electronics is truly impressive.
Dec 02, 2025
The extensive selection from DiGi Electronics inspires confidence in our procurement processes.
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Frequently Asked Questions (FAQ)
Can the B0520WS Schottky diode be safely used in a 12V automotive power rail protection circuit where load dump transients may exceed 30V for short durations?
The B0520WS has a maximum DC reverse voltage rating of 20V, making it unsuitable for direct use in 12V automotive systems exposed to load dump events that can spike above 30V. Even brief overvoltage conditions risk catastrophic failure due to avalanche breakdown. For such applications, consider higher-voltage-rated alternatives like the Vishay VS-04CTQ020S-M3 (20V, but with superior surge handling) or upgrade to a 40V-rated Schottky like the Diodes Inc. BAT54WS-7-F. Always include a TVS diode upstream for transient suppression when using the B0520WS near its voltage limit.
Is the B0520WS a drop-in replacement for the ON Semiconductor MBR0520LT1G in a low-power DC-DC converter output rectification stage?
While both are 20V, 500mA Schottky diodes in SOD-323 packages, the B0520WS is not a fully safe drop-in replacement for the MBR0520LT1G without thermal and efficiency analysis. The B0520WS has a higher reverse leakage current (250 µA @ 20V vs. ~50 µA for the MBR0520LT1G), which increases power loss at high temperatures and light loads—critical in battery-powered designs. Additionally, the forward voltage of the B0520WS (390 mV @ 500mA) is slightly higher than the MBR0520LT1G’s typical 350 mV, leading to marginally higher conduction losses. Verify thermal performance under worst-case ambient conditions before substitution.
What are the reliability risks of using the B0520WS in a high-humidity industrial environment with frequent thermal cycling between -40°C and 110°C?
Although the B0520WS is rated for -55°C to 125°C junction temperature and has MSL 1 (unlimited floor life), repeated thermal cycling in high-humidity environments can induce mechanical stress at the solder joints due to CTE mismatch between the SOD-323 package and PCB. This may lead to early fatigue failure, especially if the PCB lacks proper pad design or thermal relief. To mitigate risk, use conformal coating to prevent moisture ingress, ensure IPC-compliant solder joint geometry, and consider derating the current to 70% of the 500mA rating during sustained high-temperature operation to reduce self-heating and thermal stress.
Can the B0520WS handle the inrush current when charging a 1000µF capacitor bank in a 5V power supply startup scenario?
The B0520WS is not ideal for direct inrush current handling in capacitor charging applications. While its average rectified current is 500mA, the peak surge current capability is not specified in the datasheet—a critical gap for inrush scenarios. Charging a 1000µF bank at 5V can generate peak currents exceeding 2A during startup, risking localized heating and potential bond wire failure. For reliable operation, add a series NTC thermistor or current-limiting resistor, or select a diode with documented surge ratings like the Comchip CUS04020A (20V, 0.5A, with 5A surge capability). Alternatively, use a soft-start circuit to limit di/dt.
How does the reverse leakage of the B0520WS compare to silicon PN diodes in low-power IoT sensor nodes operating at 3.3V, and does it justify the cost premium?
At 3.3V reverse bias, the B0520WS exhibits significantly higher reverse leakage than low-leakage silicon PN diodes—typically 50–100 µA versus <1 µA for parts like the Diodes Inc. 1N4148W. In ultra-low-power IoT nodes where quiescent current must be minimized, this leakage can dominate total system standby power, reducing battery life. However, the B0520WS offers much lower forward voltage (390 mV vs. ~600 mV for PN diodes), saving power during active conduction. The trade-off depends on duty cycle: for high-frequency switching or continuous conduction, the B0520WS is superior; for infrequent switching with long sleep modes, a low-leakage PN diode may be more efficient overall.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
B0520WS CAD Models
EVVO Semi B0520WS PCB symbols & footprints
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