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Diodes Incorporated SD103AW-13-F
- Part No.:
- SD103AW-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
SD103AW-13-F.pdf
- Description:
- DIODE SCHOTTKY 40V 350MA SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:38,602
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Product details
Overview
SD103AW-13-F from Diodes Incorporated is a 40 V peak repetitive reverse voltage, 0.2 A Schottky barrier diode in SOD123 package, with maximum forward voltage of 0.60 V at 200 mA and reverse leakage of 5.0 µA at 30 V. It delivers low-loss rectification for space-constrained DC-DC converters and polarity protection circuits.
For engineers reviewing the SD103AW-13-F datasheet, SD103AW-13-F pinout, SD103AW-13-F application, or SD103AW-13-F equivalent, key selection criteria include its 0.60 V VF max at 200 mA, 40 V VRRM rating, SOD123 thermal resistance (340 °C/W), cathode-banded polarity marking, and suitability for low-voltage, high-efficiency power rails.
Technical Context
This Schottky diode uses guard ring construction to suppress transient-induced avalanche breakdown and improve ruggedness under fast-switching conditions. Its low 6 ns reverse recovery time and 28 pF junction capacitance support operation in high-frequency switching topologies up to several MHz.
The device operates across –55 °C to +150 °C and maintains stable VF and IR performance over temperature due to its platinum-silicide Schottky junction. Its 367 mW power dissipation is defined on FR-4 with recommended pad layout, enabling predictable thermal behavior in compact PCB designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - blocks up to 40 V reverse bias without breakdown, suitable for 24 V system inputs with margin |
| IF(AV) | 0.2 A - continuous average forward current rating for steady-state rectification |
| VF Max | 0.60 V @ 200 mA - minimizes conduction loss and self-heating in low-voltage power paths |
| IR Max | 5.0 µA @ 30 V - ensures low standby leakage in battery-backed or energy-sensitive circuits |
| tRR | 6 ns - enables clean commutation in high-frequency SMPS and synchronous rectifier flyback stages |
| RθJA | 340 °C/W - defines thermal rise per watt on standard FR-4; requires thermal pad design for >150 mW operation |
| CT | 28 pF @ 0 V - limits capacitive loading and EMI generation in fast-edge switching nodes |
Pinout & Package
Package: SOD123 - surface-mount plastic package (1.55 mm × 2.65 mm × 0.95 mm), cathode indicated by band, matte tin-plated alloy 42 leadframe, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., ground or return path) in reverse polarity protection |
| Cathode | Forward current exit / reverse blocking terminal | Marked with band; ties to input rail in polarity guard; carries full load current during conduction |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring construction | Enhances surge robustness and prevents edge breakdown during voltage transients |
| Low VF at 200 mA | 0.60 V - reduces power loss by ~30% vs. comparable silicon diodes in 3.3–5 V rails |
| SOD123 footprint | Enables high-density placement with 0.9 mm pad pitch; compatible with standard reflow profiles |
| Lead-free & RoHS 3 compliant | Meets EU Directive 2015/863/EU; <900 ppm Br/Cl, <1000 ppm Sb - supports green manufacturing |
Applications
| USB Power Delivery Input Protection | Point-of-Load DC-DC Converter Output |
|---|---|
Use Scenario: Prevents damage from reversed USB-C cable insertion in portable chargers and PD adapters. IC Role / Device Role / Timing Role: Polarity protection switch placed between connector and buck converter input. Use Value: 0.60 V VF minimizes voltage drop across protection path, preserving ≥4.7 V at 500 mA load. | Use Scenario: Freewheeling path in synchronous buck converters powering FPGAs or SoCs. IC Role / Device Role / Timing Role: Low-loss catch diode replacing MOSFET body diode during dead-time. Use Value: 6 ns tRR avoids cross-conduction; 28 pF CT limits ringing in 1–3 MHz switching nodes. |
| Automotive Body Control Module Supply Rail | IoT Sensor Node Battery Backup Path |
Use Scenario: Reverse battery connection protection in 12 V automotive subsystems. IC Role / Device Role / Timing Role: Series-blocking diode on main supply input before LDO or PMIC. Use Value: 40 V VRRM withstands load-dump transients up to ISO 7637-2 Pulse 5a (35 V); 5 µA IR preserves sleep current. | Use Scenario: OR-ing diode between primary battery and backup coin cell in wireless sensors. IC Role / Device Role / Timing Role: Unidirectional isolation element preventing backfeed from main to backup source. Use Value: 0.2 A IF(AV) supports 100–200 mA sensor bursts; SOD123 size fits sub-10 mm² board area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB120-TB-E3/52 | 20 V VRRM, 1 A IF(AV), DO-214AA package, VF = 0.5 V @ 1 A | Higher current, lower voltage rating; larger footprint | Select when >0.2 A average current required and board space allows DO-214AA |
| NSR0230HT1G | 30 V VRRM, 0.2 A IF(AV), SOD-123, VF = 0.45 V @ 200 mA | Lower VRRM but lower VF; same package; tighter IR spec (1 µA @ 25 V) | Prefer for 3.3–12 V systems where ultra-low VF and leakage outweigh 40 V margin need |
Compared with SB120-TB-E3/52 and NSR0230HT1G, SD103AW-13-F provides the highest reverse voltage margin (40 V) in SOD123, making it optimal for 24 V industrial inputs or automotive load-dump resilience-without sacrificing footprint or thermal performance.
Availability
SD103AW-13-F is available at Aetrix Electronics and suitable for USB power delivery protection, point-of-load DC-DC converters, and automotive body control modules requiring stable component supply and long-term manufacturability.
Supply support for SD103AW-13-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, specializing in high-reliability power management, signal integrity, and protection solutions for industrial, computing, and automotive markets.
SD103AW belongs to Diodes' general-purpose Schottky rectifier product line, engineered for cost-effective, thermally efficient low-voltage rectification and polarity protection in space-constrained applications.
FAQ
What is the maximum junction temperature for SD103AW-13-F?
The SD103AW-13-F has an operating junction temperature range of –55 °C to +150 °C. This rating is validated per JEDEC JESD22-A104 and applies under specified thermal conditions, including use of the recommended SOD123 pad layout on FR-4. Exceeding 150 °C risks permanent parametric shift or bondwire failure.
Is SD103AW-13-F qualified for automotive applications?
SD103AW-13-F is not AEC-Q101 qualified. While it meets industrial temperature and reliability requirements, Diodes offers automotive-grade variants (e.g., SD103AWQ-13-F) with PPAP documentation, IATF 16949 manufacturing, and AEC-Q101 stress testing. For automotive use, consult Diodes' automotive product definitions page.
How does the SOD123 package affect thermal performance?
The SOD123 package has a thermal resistance of 340 °C/W junction-to-ambient on standard FR-4. Its small size limits heat spreading, so derating is essential: at 25 °C ambient, maximum continuous power is ~100 mW. Adding copper pour or thermal vias under the cathode pad can reduce RθJA by up to 40%.
Can SD103AW-13-F replace SD103CW-13-F in a 5 V circuit?
Yes-SD103AW-13-F (40 V VRRM) can safely replace SD103CW-13-F (20 V VRRM) in 5 V circuits, offering higher reverse voltage margin. Electrical characteristics (VF, IR, tRR) are identical across the SD103x family at rated conditions. No layout or schematic changes are needed, though forward voltage may be slightly higher at very low currents due to junction differences.
SD103AW-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 350mA
- Voltage - Forward (Vf) (Max) @ If:
- 600 mV @ 200 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 10 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 30 V
- Capacitance @ Vr, F:
- 28pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
- Operating Temperature - Junction:
- -65°C ~ 125°C
SD103AW-13-F FAQ
1.How can I place an order for SD103AW-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SD103AW-13-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 SD103AW-13-F reliable?
The price and inventory of SD103AW-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SD103AW-13-F is usually 5 days.
3.What payment methods are accepted for SD103AW-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SD103AW-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SD103AW-13-F?
SD103AW-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SD103AW-13-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 SD103AW-13-F?
For technical support, including SD103AW-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SD103AW-13-F requirements.
6.How does Aetrix verify that SD103AW-13-F is sourced from the original manufacturer or authorized distributors?
All SD103AW-13-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 SD103AW-13-F meets industry standards.
7.What is the process for return or replacement of SD103AW-13-F?
All SD103AW-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SD103AW-13-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 SD103AW-13-F part is unused and in its original packaging.
Return procedure for SD103AW-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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