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Nexperia USA Inc. RB520S30YL
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- Part No.:
- RB520S30YL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
RB520S30YL.pdf
- Description:
- DIODE SCHOTTKY 30V 200MA SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:4,962
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Product details
Overview
RB520S30YL 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 optimized for low-power DC-to-DC conversion in space-constrained portable electronics.
For engineers reviewing the RB520S30YL datasheet, RB520S30YL pinout, RB520S30YL application, or RB520S30YL equivalent, key selection criteria include ultra-low VF performance at 200 mA, sub-1 µA reverse leakage at 10 V, SOD523 package thermal resistance (Rth(j-a) = 455 K/W on FR4), and cathode-marked polarity identification for reverse polarity protection layouts.
Technical Context
This Schottky diode uses a planar silicon structure with an integrated guard ring to suppress edge breakdown and improve reliability under transient overvoltage stress. Its low forward voltage drop stems from a low-barrier-height metal–semiconductor junction, enabling high efficiency in low-current (<200 mA) rectification paths.
Thermal performance is defined relative to mounting conditions: Rth(j-sp) = 90 K/W to cathode solder point, and Rth(j-a) varies from 455 K/W (standard FR4) to 250 K/W (ceramic Al₂O₃ PCB), directly impacting maximum sustainable IF(AV) in real-world board layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) | 200 mA - Maximum continuous forward current under square-wave conditions (δ = 0.5, f = 20 kHz) on standard FR4 PCB. |
| VR | 30 V - Absolute maximum reverse voltage before breakdown; derating required above 85 °C ambient. |
| VF @ 200 mA | 520–600 mV - Forward voltage drop at rated current; enables >92% efficiency in 3.3 V → 2.5 V buck converter diode path. |
| IR @ 10 V | ≤1 µA - Reverse leakage at 10 V and 25 °C; ensures minimal standby power loss in battery-backed circuits. |
| Cd @ 1 V | 20 pF - Junction capacitance at 1 V reverse bias; supports switching frequencies up to ~100 MHz in RF detector or clamp applications. |
| Rth(j-a) | 455 K/W - Thermal resistance junction-to-ambient on FR4 (1 cm² cathode pad); limits power dissipation to ~275 mW at Tamb = 25 °C. |
Pinout & Package
Encapsulated in SOD523 (SC-79) ultra-small surface-mount plastic package: 1.2 mm × 0.8 mm × 0.6 mm body, flat lead profile, cathode identified by marking bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Negative output terminal; marked side of package; connects to load ground or return path in reverse polarity protection. |
| 2 | Anode (A) | Positive input terminal; connects to power source or switch node; carries full forward current during conduction. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring integration | Suppresses edge electric field concentration, improving VR consistency and long-term reliability under repetitive surge stress. |
| Ultra-low VF at 200 mA | 520–600 mV enables <100 mW conduction loss at full rated current-critical for thermally constrained wearables and IoT sensors. |
| SOD523 footprint | 1.2 mm × 0.8 mm area minimizes PCB real estate; compatible with standard reflow profiles per J-STD-020. |
| Low IR at 10 V | ≤1 µA reverse leakage preserves battery life in always-on monitoring circuits with multi-year shelf requirements. |
Applications
| USB Port Protection | Wearable Power Management |
|---|---|
Use Scenario: Preventing damage from reversed USB cable insertion in portable chargers and OTG accessories. IC Role / Device Role / Timing Role: Low-loss reverse polarity protection diode placed in series with VBUS line. Use Value: 520–600 mV VF minimizes voltage drop across protection path, preserving 5.0 V ±5% compliance at 200 mA load. |
Use Scenario: Rectifying output of miniature inductive DC-DC converters in hearables and smart patches. IC Role / Device Role / Timing Role: Output synchronous rectifier replacement in 1.8 V/3.3 V buck topologies. Use Value: 20 pF junction capacitance avoids high-frequency ringing; 150 °C Tj rating supports operation inside sealed enclosures. |
| IoT Sensor Node Supply | Industrial Control Signal Clamping |
Use Scenario: Providing isolated 3.3 V supply from coin-cell or energy-harvesting sources in wireless sensor transmitters. IC Role / Device Role / Timing Role: Low-current AC-to-DC rectifier in miniature transformer-coupled or piezoelectric harvesters. Use Value: ≤1 µA IR ensures <1% battery drain per month in sleep mode; SOD523 footprint fits sub-10 mm² PCBs. |
Use Scenario: Protecting analog input pins of microcontrollers from ESD and overvoltage transients in factory automation modules. IC Role / Device Role / Timing Role: Fast clamping diode tied between signal line and VDD/GND rails. Use Value: Schottky construction enables <1 ns turn-on delay; 30 V VR withstands IEC 61000-4-2 Level 4 contact discharge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ROHM RB520S30T2R | Identical electrical specs and SOD523 package; differs only in tape-and-reel packaging (T2R vs YL) and RoHS-compliance documentation. | No functional difference; suitable for identical use cases including reverse polarity protection and low-current SMPS. | Select when requiring ROHM's specific logistics format or regional compliance certifications not covered by Nexperia's YL variant. |
| Vishay SS12 | Higher IF(AV) = 200 mA but larger SOD-123 package (3.7 mm × 1.6 mm); VF = 500 mV typ at 200 mA; IR = 500 nA at 10 V. | Better thermal margin (Rth(j-a) ≈ 200 K/W) but occupies >3× PCB area; unsuitable for ultra-dense wearable layouts. | Choose only if board layout allows SOD-123 and lower IR (0.5 µA) is prioritized over size constraints. |
Compared with RB520S30YL, ROHM's RB520S30T2R offers identical performance in a functionally interchangeable package, while Vishay's SS12 trades miniaturization for improved thermal headroom and slightly lower leakage-making RB520S30YL optimal where PCB area is the dominant constraint.
Availability
RB520S30YL is available at Aetrix Electronics and suitable for USB port protection, wearable power management, IoT sensor node supply, and industrial control signal clamping requiring stable component supply and guaranteed long-term sourcing.
Supply support for RB520S30YL 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 leadership in automotive-grade and industrial power solutions.
RB520S30YL belongs to Nexperia's low-VF Schottky rectifier product line, engineered specifically for space-constrained, battery-sensitive applications demanding minimal forward loss and robust transient immunity.
FAQ
What is the maximum allowable ambient temperature for continuous 200 mA operation?
At 200 mA average forward current and δ = 0.5 square wave, the RB520S30YL can operate continuously up to 105 °C ambient on standard FR4 PCB (per Table 1 limiting values). Derating is required above this temperature; at 125 °C ambient, maximum IF(AV) drops to ~120 mA (Fig. 8).
Is RB520S30YL suitable for automotive applications?
No-RB520S30YL is not AEC-Q200 qualified and lacks automotive-grade screening, temperature cycling validation, or extended lifetime testing. Nexperia explicitly states non-automotive qualification in its legal disclaimers; use only in consumer, industrial, or medical non-safety-critical systems.
How does the guard ring affect reverse voltage performance?
The integrated guard ring reduces electric field crowding at the silicon periphery, raising the effective breakdown voltage and improving VR consistency across manufacturing lots. This results in tighter distribution of measured VR (30 V min) and enhanced reliability under repetitive surge conditions like ISO 7637-2 pulses.
Can RB520S30YL be used in high-frequency switching (>1 MHz)?
Yes-its 20 pF junction capacitance (at 1 V, 1 MHz) and Schottky construction enable clean switching up to ~100 MHz in clamping or detector roles. However, for >10 MHz SMPS rectification, parasitic inductance of the SOD523 leads may dominate; layout optimization (short traces, ground plane proximity) is essential.
RB520S30YL 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)
RB520S30YL FAQ
1.How can I place an order for RB520S30YL through Aetrix?
Please submit a Request for Quotation (RFQ) for RB520S30YL 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 RB520S30YL reliable?
The price and inventory of RB520S30YL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RB520S30YL is usually 5 days.
3.What payment methods are accepted for RB520S30YL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RB520S30YL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RB520S30YL?
RB520S30YL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RB520S30YL 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 RB520S30YL?
For technical support, including RB520S30YL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RB520S30YL requirements.
6.How does Aetrix verify that RB520S30YL is sourced from the original manufacturer or authorized distributors?
All RB520S30YL 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 RB520S30YL meets industry standards.
7.What is the process for return or replacement of RB520S30YL?
All RB520S30YL units undergo pre-shipment inspection (PSI). If there is an issue with RB520S30YL, 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 RB520S30YL part is unused and in its original packaging.
Return procedure for RB520S30YL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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