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Diodes Incorporated B0530WS-7-F
- Part No.:
- B0530WS-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
B0530WS-7-F.pdf
- Description:
- DIODE SCHOTTKY 30V 500MA SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:121,783
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Product details
Overview
B0530WS-7-F from Diodes Incorporated is a surface-mount Schottky barrier rectifier in SOD323 package, rated for 30 V peak repetitive reverse voltage and 0.5 A average forward current, with low 0.36 V forward voltage at 0.5 A and 25 °C. It serves as a high-efficiency, low-loss power rectifier in compact DC/DC converter outputs and USB-powered load-switching circuits.
For engineers reviewing the B0530WS-7-F datasheet, B0530WS-7-F pinout, B0530WS-7-F application, or B0530WS-7-F equivalent, key selection criteria include its 0.45 V max VF at 0.5 A, 80 µA max IR at 15 V, 58 pF typical junction capacitance, thermal resistance of 426 °C/W, and automotive-grade variant availability (B0530WSQ).
Technical Context
This Schottky diode uses guard ring construction to enhance transient immunity and suppress leakage under reverse bias. Its low forward voltage drop stems from optimized metal-semiconductor junction design, enabling efficient operation in low-voltage, high-frequency switching paths.
Thermal performance is defined for FR-4 PCB mounting with recommended pad layout; derating begins above 25 °C ambient, with full current capability only up to 75 °C case temperature per Figure 5. Capacitance varies inversely with applied reverse voltage, dropping from ~58 pF at 0 V to ~10 pF at 20 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum non-repetitive reverse voltage before breakdown; sets upper limit for blocking capability in 3.3 V–5 V rail clamping or flyback snubbing |
| IF(AV) | 0.5 A - Continuous DC output current rating; defines usable current in low-power SMPS secondary-side rectification |
| VF @ 0.5 A | 0.36 V typ / 0.45 V max - Low conduction loss enables >95% efficiency in 1.8 V–5 V synchronous rectifier replacement applications |
| IR @ 15 V | 80 µA max - Low leakage preserves battery life in always-on standby circuits and low-quiescent IoT nodes |
| RθJA | 426 °C/W - Thermal resistance on FR-4 board; limits power dissipation to 235 mW at TA = 25 °C without heatsinking |
| CT @ 0 V | 58 pF typ - Junction capacitance at zero bias; impacts high-frequency switching noise and EMI in >1 MHz DC/DC converters |
Pinout & Package
Package: SOD323 - ultra-compact 2-pin surface-mount plastic package (1.30 mm × 1.70 mm × 0.90 mm), cathode-banded polarity, matte tin-plated terminals, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node or ground return); must route with minimal inductance in high-dI/dt paths |
| Cathode | Forward current exit / reverse voltage reference | Marked by band; ties to positive output rail; determines reverse blocking direction and clamping polarity |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 0.36 V typ at 0.5 A - reduces conduction loss by ~40% vs. standard PN diodes, critical for thermally constrained portable designs |
| Guard ring construction | Integrated edge termination - improves surge robustness against ESD and line transients without external TVS components |
| Halogen & antimony free | <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - meets global "Green" compliance mandates for consumer and industrial end equipment |
| SOD323 footprint | 0.004 g mass, 1.30 mm × 1.70 mm body - enables high-density layout in space-constrained wearables and sensor modules |
Applications
| USB Power Delivery Interface | Low-Voltage DC/DC Converter Output |
|---|---|
Use Scenario: Reverse-polarity protection and input rectification in USB-C 5 V/3 A power path. IC Role / Device Role / Timing Role: Schottky rectifier providing low-loss, fast-turn-off isolation between source and load. Use Value: 0.36 V VF minimizes voltage drop across protection path, preserving ≥4.82 V at load under full 3 A current. | Use Scenario: Secondary-side rectification in 1 MHz buck converter powering FPGA I/O banks. IC Role / Device Role / Timing Role: High-frequency switching rectifier replacing synchronous MOSFETs where gate drive complexity is undesirable. Use Value: 58 pF CT and sub-10 ns recovery enable clean waveform integrity with <10 mV switching noise at 1 MHz. |
| IoT Sensor Node Battery Management | Automotive Body Control Module (BCM) Subsystem |
Use Scenario: OR-ing diode in dual-supply (battery + USB) energy harvesting system. IC Role / Device Role / Timing Role: Low-leakage blocking diode preventing backfeed while maintaining ultra-low quiescent current. Use Value: 80 µA IR at 15 V ensures <1 µA net leakage per diode in stacked configuration, extending shelf life beyond 10 years. | Use Scenario: Reverse-voltage protection for LIN bus transceiver power supply in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Transient-hardened clamp diode absorbing load dump spikes up to 30 V. Use Value: Guard ring construction sustains 2 A non-repetitive surge (IFSM) without degradation, meeting ISO 7637-2 Pulse 1/2a requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RB520S-30T2R | Same 30 V VRRM, 0.5 A IF(AV), but VF = 0.33 V typ @ 0.5 A; SOD-523 package (smaller, 1.0 mm × 0.6 mm) | Higher current density; unsuitable for manual rework or high-vibration environments due to smaller pad area | Select when board space is <1.0 mm² per diode and thermal margin exceeds 15 °C |
| NSR0530HT1G | Same SOD323, 30 V, 0.5 A, but VF = 0.45 V typ @ 0.5 A; higher IR (200 µA @ 15 V) | Lower cost; less suitable for battery-critical applications requiring sub-100 µA leakage | Select for cost-sensitive industrial controls where leakage >150 µA is acceptable |
Compared with RB520S-30T2R and NSR0530HT1G, B0530WS-7-F delivers optimal balance of low VF (0.36 V), low IR (80 µA), and proven SOD323 manufacturability-making it preferred for high-reliability portable and automotive-adjacent designs.
Availability
B0530WS-7-F is available at Aetrix Electronics and suitable for USB power delivery interfaces, low-voltage DC/DC converter outputs, and IoT sensor node battery management requiring stable component supply and long-term lifecycle support.
Supply support for B0530WS-7-F includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.
The B0530WS belongs to Diodes' Schottky Rectifier product line, engineered for high-efficiency, low-voltage power conversion in space-constrained and thermally sensitive applications such as portable electronics and automotive subsystems.
FAQ
What is the maximum junction temperature for continuous operation?
The B0530WS-7-F has an operating junction temperature range of –40 °C to +125 °C. For continuous operation at full 0.5 A current, the device requires ambient temperature ≤75 °C on standard FR-4 PCB per Figure 5 derating curve; exceeding this requires thermal relief or reduced current to maintain TJ ≤125 °C.
Is B0530WS-7-F suitable for automotive applications?
The B0530WS-7-F is not AEC-Q200 qualified. However, Diodes offers the automotive-compliant B0530WSQ variant (same electrical specs, qualified to AEC-Q200 Grade 2) for under-hood and body electronics. Use B0530WSQ-not B0530WS-7-F-for production automotive systems.
How does the guard ring construction improve reliability?
The guard ring in B0530WS-7-F provides edge termination that suppresses electric field crowding at the silicon periphery, reducing premature avalanche breakdown during transient overvoltage events. This increases surge survivability-verified by 2 A IFSM rating-and lowers failure rate in noisy power rails like those found in motor drives and industrial PLCs.
Can B0530WS-7-F replace a standard PN rectifier in existing designs?
Yes-B0530WS-7-F can directly replace PN diodes such as 1N4148 or 1N4001 in low-voltage, low-current applications, provided reverse voltage does not exceed 30 V. Its lower VF reduces heat generation, but note its higher capacitance (58 pF vs. ~4 pF for 1N4148), which may affect high-speed signal integrity if used in data-line clamping.
B0530WS-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 500mA
- Voltage - Forward (Vf) (Max) @ If:
- 450 mV @ 500 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 30 V
- Capacitance @ Vr, F:
- 58pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
- Operating Temperature - Junction:
- -40°C ~ 125°C
B0530WS-7-F FAQ
1.How can I place an order for B0530WS-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for B0530WS-7-F on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for B0530WS-7-F reliable?
The price and inventory of B0530WS-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B0530WS-7-F is usually 5 days.
3.What payment methods are accepted for B0530WS-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B0530WS-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B0530WS-7-F?
B0530WS-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B0530WS-7-F order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for B0530WS-7-F?
For technical support, including B0530WS-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B0530WS-7-F requirements.
6.How does Aetrix verify that B0530WS-7-F is sourced from the original manufacturer or authorized distributors?
All B0530WS-7-F products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that B0530WS-7-F meets industry standards.
7.What is the process for return or replacement of B0530WS-7-F?
All B0530WS-7-F units undergo pre-shipment inspection (PSI). If there is an issue with B0530WS-7-F, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The B0530WS-7-F part is unused and in its original packaging.
Return procedure for B0530WS-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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