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Nexperia USA Inc. RB520S30,115
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- Part No.:
- RB520S30,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
RB520S30,115.pdf
- Description:
- DIODE SCHOTTKY 30V 200MA SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:6,294
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Product details
Overview
RB520S30 from Nexperia is a planar Schottky barrier rectifier with integrated guard ring for stress protection, rated for 200 mA average forward current, 30 V reverse voltage, and 520–600 mV forward voltage at 200 mA (pulsed, Tj = 25 °C). It operates up to 150 °C junction temperature and is housed in an ultra-small SOD523 (SC-79) surface-mount package. It serves as a low-loss, high-efficiency rectifier in space-constrained DC/DC converters and reverse polarity protection circuits.
For engineers reviewing the RB520S30 datasheet, RB520S30 pinout, RB520S30 application, or RB520S30 equivalent, this page delivers verified electrical parameters, thermal behavior on FR4 PCBs, cathode/anode terminal mapping, real-world use cases in SMPS and low-power systems, and validated alternative diodes with documented differences in VF, IR, and thermal resistance.
Technical Context
This Schottky diode uses a planar silicon structure with an integrated guard ring to suppress edge breakdown under high electric field stress, enabling reliable operation at its 30 V VR rating. Its low 520–600 mV VF at 200 mA directly reduces conduction loss in high-frequency switching paths.
Thermal performance is defined across three mounting conditions: Rth(j-a) = 455 K/W (standard FR4), 300 K/W (FR4 with 1 cm² cathode pad), and 250 K/W (ceramic Al₂O₃ PCB). Reverse leakage remains ≤1 µA at 10 V and 25 °C, supporting low-quiescent-current designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) | 200 mA - Maximum continuous forward current sustainable on FR4 PCB with standard footprint at Tamb ≤ 105 °C. |
| VR | 30 V - Absolute maximum reverse voltage before breakdown; guard ring ensures stable edge termination. |
| VF @ 200 mA | 520–600 mV - Forward voltage drop defining conduction loss in high-efficiency buck or boost stages. |
| IR @ 10 V | ≤1 µA - Low reverse leakage preserves battery life in always-on, low-power applications. |
| Cd @ 1 V | 20 pF - Junction capacitance limiting high-frequency switching speed and EMI generation. |
| Rth(j-sp) | 90 K/W - Thermal resistance from junction to cathode solder point, critical for pulsed power handling. |
Pinout & Package
Encapsulated in the SOD523 (SC-79) ultra-small surface-mount plastic package (1.2 mm × 0.8 mm × 0.6 mm body), the RB520S30 features a flat lead profile optimized for automated placement and reflow on dense PCBs. The cathode is marked by a visible bar on the device top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Negative output terminal; marked by bar; connects to ground or return path in rectification and polarity protection. |
| 2 | Anode (A) | Positive input terminal; accepts input voltage; forms forward-biased path when A > K by ≥VF. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated guard ring | Prevents premature edge breakdown under high dv/dt or reverse bias stress, improving reliability in SMPS flyback snubbers. |
| Ultra-low VF (520–600 mV) | Reduces forward conduction loss by ~30% vs. comparable 30 V Schottkys, directly increasing light-load efficiency in PMICs. |
| SOD523 footprint | Enables <1.0 mm² board area usage-ideal for wearables, hearing aids, and coin-cell-powered IoT sensors. |
| 1 µA max IR at 10 V | Minimizes standby current drain in battery-backed systems where reverse leakage dominates quiescent loss. |
Applications
| Low-Current Rectification | High-Efficiency DC/DC Conversion |
|---|---|
Use Scenario: Converting 3.3 V or 5 V USB-supplied rail to 2.8 V logic supply in portable medical sensors. IC Role / Device Role / Timing Role: Output rectifier in synchronous buck converter's freewheeling path. Use Value: 520–600 mV VF minimizes dropout and maintains >92% efficiency at 100 mA load under light-load PWM control. |
Use Scenario: Input-side reverse polarity protection and ESD-tolerant clamping in 12 V → 3.3 V buck modules for industrial controllers. IC Role / Device Role / Timing Role: Unidirectional blocking diode placed between input connector and DC/DC input capacitor. Use Value: 30 V VR rating withstands automotive load-dump transients; 1 µA IR prevents battery drain during system sleep. |
| Switch Mode Power Supply (SMPS) | Reverse Polarity Protection |
Use Scenario: Secondary-side rectification in isolated flyback adapters powering smart home hubs. IC Role / Device Role / Timing Role: Fast-recovery rectifier replacing slower PN diodes to reduce switching losses at 100–500 kHz. Use Value: Near-zero reverse recovery time eliminates tail current, reducing heat in compact enclosed adapters. |
Use Scenario: Protecting Li-ion battery management ICs from accidental reverse connection during field servicing. IC Role / Device Role / Timing Role: Series-connected anode-to-battery-positive, cathode-to-IC-input, blocking reverse current flow. Use Value: 200 mA IF(AV) supports peak charging currents; SOD523 size fits tight service-access zones on PCB edges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSSR0230P5T5G | VF = 450–550 mV @ 200 mA; IR = 2 µA @ 10 V; Rth(j-a) = 400 K/W on FR4. | Lower VF improves light-load efficiency but higher IR increases standby loss in battery systems. | Select when lowest conduction loss is prioritized over leakage-sensitive long-duration sleep modes. |
| Vishay VS-2EDH02HM3/85A | VF = 550–650 mV @ 200 mA; IR = 0.5 µA @ 10 V; SOD-323 package (1.7 × 1.3 mm). | Tighter IR spec benefits energy harvesting nodes; larger footprint limits ultra-dense layouts. | Choose when sub-µA leakage is mandatory and board area allows 40% larger package. |
Compared with RB520S30, NSSR0230P5T5G trades lower VF for higher IR, making it better for efficiency-critical but not leakage-critical designs; VS-2EDH02HM3/85A offers superior leakage control in a larger SOD-323, suiting applications where board space permits tighter IR requirements.
Availability
RB520S30 is available at Aetrix Electronics and suitable for low-power rectification, reverse polarity protection, and high-frequency DC/DC conversion requiring stable component supply across consumer, industrial, and IoT production programs.
Supply support for RB520S30 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
Nexperia is a global semiconductor expert delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, miniaturization, and robustness for mass-market electronics.
RB520S30 belongs to Nexperia's low-VF Schottky rectifier product line, engineered specifically for space-constrained, battery-efficient applications demanding minimal forward drop and guaranteed stress resilience via guard-ring technology.
FAQ
What is the maximum junction temperature for continuous operation?
The RB520S30 has a maximum junction temperature (Tj) of 150 °C, validated under specified thermal mounting conditions including FR4 PCB with standard footprint and 1 cm² cathode pad. Operation beyond this limit risks permanent degradation of the Schottky barrier and guard ring integrity.
Can RB520S30 be used in automotive applications?
No-RB520S30 is not automotive-qualified. Nexperia explicitly states in its legal disclaimers that unless designated "automotive qualified," the device is neither tested nor warranted for automotive use, including AEC-Q101 stress testing or temperature cycling across -40 °C to +125 °C ambient.
How does the guard ring improve reliability?
The integrated guard ring redistributes electric field lines at the silicon periphery, suppressing premature avalanche breakdown at the junction edge under high reverse bias or fast dv/dt transients-critical in flyback snubbers and hot-plug circuits where edge instability causes parametric shift or failure.
What is the recommended reflow profile for SOD523 mounting?
Nexperia specifies a standard lead-free reflow profile with peak temperature ≤260 °C, ramp-up rate ≤3 °C/s, and time above 217 °C limited to 60–150 seconds. Figure 14 provides exact solder land dimensions (0.5 mm × 0.4 mm pads, 0.6 mm center-to-center spacing) for optimal wetting and mechanical strength.
RB520S30,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 200mA
- Voltage - Forward (Vf) (Max) @ If:
- 600 mV @ 200 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 µA @ 10 V
- Capacitance @ Vr, F:
- 20pF @ 1V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
- Operating Temperature - Junction:
- 150°C (Max)
RB520S30,115 FAQ
1.How can I place an order for RB520S30,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for RB520S30,115 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 RB520S30,115 reliable?
The price and inventory of RB520S30,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RB520S30,115 is usually 5 days.
3.What payment methods are accepted for RB520S30,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RB520S30,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RB520S30,115?
RB520S30,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RB520S30,115 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 RB520S30,115?
For technical support, including RB520S30,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RB520S30,115 requirements.
6.How does Aetrix verify that RB520S30,115 is sourced from the original manufacturer or authorized distributors?
All RB520S30,115 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 RB520S30,115 meets industry standards.
7.What is the process for return or replacement of RB520S30,115?
All RB520S30,115 units undergo pre-shipment inspection (PSI). If there is an issue with RB520S30,115, 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 RB520S30,115 part is unused and in its original packaging.
Return procedure for RB520S30,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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