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Diodes Incorporated 1N5819HW1-7-F
- Part No.:
- 1N5819HW1-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- SOD-123F
- Datasheet:
-
1N5819HW1-7-F.pdf
- Description:
- DIODE SBR 40V 1A SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:10,042
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Product details
Overview
1N5819HW1-7-F from Diodes Incorporated is a 1A SBR® Super Barrier Rectifier in SOD123F package, featuring 40V peak repetitive reverse voltage, 0.51V max forward voltage at 1A/25°C, and 0.5mA max reverse leakage at 40V/25°C. It serves as a high-efficiency boost or blocking diode in DC-DC converters and power supply front-ends.
For engineers reviewing the 1N5819HW1-7-F datasheet, 1N5819HW1-7-F pinout, 1N5819HW1-7-F application, or 1N5819HW1-7-F equivalent, key selection criteria include low VF for conduction loss reduction, stable high-temperature IR performance up to +125°C, SOD123F footprint compatibility, and RoHS-compliant green packaging.
Technical Context
This SBR device uses a proprietary super barrier structure-distinct from Schottky or PN junctions-to achieve lower forward voltage than standard Schottkys while maintaining superior high-temperature reverse leakage control. Its 15ns reverse recovery time supports switching frequencies up to several hundred kHz in non-synchronous rectification.
The SOD123F package provides 75°C/W typical RθJA on 1-inch² copper pad, enabling 1A continuous operation at ambient temperatures up to +85°C without forced airflow. Thermal resistance drops to 12°C/W junction-to-case, facilitating localized heat sinking in compact layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum repetitive reverse blocking capability without breakdown |
| IO | 1 A - Continuous average forward current rating under defined thermal conditions |
| VF (max) | 0.51 V @ 1A, +25°C - Directly limits conduction loss in high-current paths |
| IR (max) | 0.5 mA @ 40V, +25°C - Enables stable operation in high-impedance bias networks |
| tRR | 15 ns - Supports efficient operation in medium-frequency SMPS with minimal switching loss |
| RθJA | 75 °C/W - Achievable with 1-inch² copper pad; defines thermal derating in PCB-constrained designs |
| Junction Temp | –55°C to +125°C - Specifies full operational range for industrial and automotive ambient environments |
Pinout & Package
SOD123F is a surface-mount plastic package with cathode band marking; dimensions: 2.70mm × 1.80mm × 1.15mm (L × W × H), weight ≈ 0.0016 g. Matte tin-plated copper leadframe ensures solderability per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of rectification path (e.g., switch node in boost converter) |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to output rail or filter capacitor positive; blocks reverse current during off-state |
Key Features
| Feature | Design Value |
|---|---|
| Low VF at 1A | 0.51 V max enables ≥2% efficiency gain over standard Schottky alternatives in 5V–12V output converters |
| High-temp IR stability | 0.075 mA @ 40V/+125°C reduces thermal runaway risk in sealed enclosures or high-ambient environments |
| SOD123F footprint | Compatible with industry-standard 0805-class reflow profiles and automated placement equipment |
| Green construction | Halogen- and antimony-free molding compound (<900 ppm Br+Cl, <1000 ppm Sb) meets IPC-1752A Tier 1 reporting |
Applications
| Boost Converter Diode | USB Power Delivery Input Protection |
|---|---|
Use Scenario: High-efficiency step-up DC-DC conversion in portable battery-powered systems. IC Role / Device Role / Timing Role: Boost diode conducting during MOSFET off-time to transfer energy from inductor to output capacitor. Use Value: 0.51V VF minimizes voltage drop across diode, preserving output regulation margin and extending battery runtime. | Use Scenario: Reverse-polarity and backfeed protection at USB-C PD input ports. IC Role / Device Role / Timing Role: Blocking diode preventing damage from miswired adapters or accidental back-feeding. Use Value: Low IR at elevated temperature ensures reliable blocking even inside thermally constrained USB controller modules. |
| Solar Charge Controller Blocking | Industrial 24V DC Power Rail Clamp |
Use Scenario: Preventing nighttime battery discharge through photovoltaic panels in off-grid solar systems. IC Role / Device Role / Timing Role: Blocking diode placed between panel array and battery bank. Use Value: 40V VRRM safely handles open-circuit PV voltages up to 36V nominal arrays; 125°C TJ rating suits outdoor enclosures. | Use Scenario: Overvoltage clamping and transient suppression on 24V industrial control rails. IC Role / Device Role / Timing Role: Low-leakage clamp diode shunting surge events to ground or rail. Use Value: 0.008 mA IR at 4V enables use in high-impedance monitoring circuits without signal corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB140-E3/54 | 40V VRRM, 1A IO, but 0.55V VF max @ 1A/25°C; higher IR at 125°C (0.25mA) | Less efficient in high-duty-cycle boost stages; requires larger heatsinking above 70°C ambient | Prefer when legacy design validation exists and thermal margin exceeds 15°C |
| SS14-HF | 40V VRRM, 1A IO, 0.5V VF typ @ 1A/25°C, but no SBR structure; IR = 0.2mA @ 40V/125°C | Higher leakage may compromise long-term reliability in sealed high-temp environments | Acceptable for cost-sensitive consumer applications with ambient ≤60°C |
Compared with SB140-E3/54 and SS14-HF, the 1N5819HW1-7-F delivers the lowest verified VF at rated current and the tightest high-temperature IR specification-critical for thermally constrained industrial and automotive power rails where conduction loss and thermal runaway must both be minimized.
Availability
1N5819HW1-7-F is available at Aetrix Electronics and suitable for boost converters, USB PD input protection, solar charge controllers, and industrial 24V DC power rail clamps requiring stable component supply across multi-year production cycles.
Supply support for 1N5819HW1-7-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 SBR® (Super Barrier Rectifier) product line was developed to replace conventional Schottky diodes in high-efficiency power conversion, delivering lower VF without sacrificing high-temperature reliability or reverse leakage performance.
FAQ
What is the maximum junction temperature for continuous operation?
The 1N5819HW1-7-F has a specified operating junction temperature range of –55°C to +125°C. For continuous 1A DC operation, thermal design must ensure junction temperature remains within this limit-typically requiring ≤75°C/W RθJA on PCB copper and ambient ≤85°C with no forced airflow.
Is the SOD123F package compatible with standard 0805 reflow profiles?
Yes-the SOD123F package dimensions (2.70mm × 1.80mm) and matte tin finish meet IPC-7351B 0805 land pattern recommendations. It withstands peak reflow temperatures up to 260°C for 10 seconds per J-STD-020 moisture sensitivity Level 1 requirements.
How does the SBR structure differ from a standard Schottky diode?
The SBR structure uses a modified metal-semiconductor interface with tailored barrier height and doping profile, achieving lower forward voltage than Schottkys while suppressing thermionic emission at high temperature-resulting in significantly lower IR drift above 85°C compared to conventional Schottky rectifiers.
Can this diode be used in synchronous rectification topologies?
No-this is a unidirectional rectifier optimized for non-synchronous operation. It lacks gate control, body diode integration, or fast turn-off characteristics required for synchronous rectification. Use dedicated MOSFET drivers and logic-level FETs instead for synchronous designs.
1N5819HW1-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- SBR®
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Super Barrier
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 510 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 15 ns
- Current - Reverse Leakage @ Vr:
- 500 µA @ 40 V
- Capacitance @ Vr, F:
- 30pF @ 10V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
- Operating Temperature - Junction:
- -55°C ~ 125°C
1N5819HW1-7-F FAQ
1.How can I place an order for 1N5819HW1-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5819HW1-7-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 1N5819HW1-7-F reliable?
The price and inventory of 1N5819HW1-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5819HW1-7-F is usually 5 days.
3.What payment methods are accepted for 1N5819HW1-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5819HW1-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5819HW1-7-F?
1N5819HW1-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5819HW1-7-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 1N5819HW1-7-F?
For technical support, including 1N5819HW1-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5819HW1-7-F requirements.
6.How does Aetrix verify that 1N5819HW1-7-F is sourced from the original manufacturer or authorized distributors?
All 1N5819HW1-7-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 1N5819HW1-7-F meets industry standards.
7.What is the process for return or replacement of 1N5819HW1-7-F?
All 1N5819HW1-7-F units undergo pre-shipment inspection (PSI). If there is an issue with 1N5819HW1-7-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 1N5819HW1-7-F part is unused and in its original packaging.
Return procedure for 1N5819HW1-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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