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Taiwan Semiconductor Corporation 1N5819HB0G
- Part No.:
- 1N5819HB0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N5819HB0G.pdf
- Description:
- DIODE SCHOTTKY 40V 1A DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,371
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Product details
Overview
1N5819HB0G from Taiwan Semiconductor is a 1A, 40V Schottky barrier rectifier in DO-41 package, featuring low forward voltage (0.60 V at 1 A), 30 A surge capability, and AEC-Q101 qualification for automotive reliability. It serves as a high-efficiency output rectifier in DC-DC converters and switching power supplies.
For engineers reviewing the 1N5819HB0G datasheet, 1N5819HB0G pinout, 1N5819HB0G application, or 1N5819HB0G equivalent, key selection criteria include peak reverse voltage (40 V), forward voltage drop at rated current, thermal resistance (RθJA = 100 °C/W), junction temperature range (–55 to +125 °C), and AEC-Q101 qualification status.
Technical Context
This discrete Schottky diode uses a single-die construction with guard ring protection to enhance overvoltage robustness. Its low VF and fast recovery enable high-efficiency rectification in high-frequency switching topologies without minority-carrier storage delay.
The device operates across –55 °C to +125 °C junction temperature, with RθJC = 45 °C/W enabling effective heat transfer to PCB copper. Pure tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in DC-DC output stage |
| IF | 1 A - Continuous forward current rating; determines steady-state power dissipation (PLOSS ≈ 0.6 W) |
| IFSM | 30 A - Non-repetitive surge current (8.3 ms half-sine); supports inrush and transient overload tolerance |
| VF | 0.60 V @ 1 A, 25 °C - Low conduction loss improves efficiency vs. PN diodes; reduces thermal stress |
| TJ max | +125 °C - Maximum junction temperature; sets derating boundary for ambient and layout design |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance; guides PCB copper area and airflow requirements |
| CJ | 55 pF @ 1 MHz, 4 V - Junction capacitance affects high-frequency switching noise and EMI filtering design |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, epoxy-molded case with cathode band polarity marking. Weight: 0.330 g. UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); requires thermal relief pad for soldering |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; connects to output rail; must withstand full VRRM during off-state |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per stress test plan |
| Guard ring structure | Prevents edge breakdown under transient overvoltage; improves ruggedness in unclamped inductive loads |
| Low VF (0.60 V) | Reduces conduction loss by ~40% vs. comparable 1N4007; enables higher efficiency in 5–24 V output SMPS |
| Pure tin plating | Ensures RoHS-compliant, whisker-resistant solder joints compatible with lead-free reflow profiles |
| High IFSM/IF ratio (30×) | Supports short-duration load surges without bond wire fusing-critical in adapter and PoE-powered devices |
Applications
| Switching Mode Power Supply (SMPS) | Automotive DC-DC Converter |
|---|---|
Use Scenario: Secondary-side rectification in 12 V input, 3.3–5 V output flyback or buck converter. IC Role / Device Role / Timing Role: Output rectifier replacing PN diode to reduce losses and improve thermal margin. Use Value: 0.60 V VF lowers conduction loss by >0.2 W vs. 1N4007, directly improving efficiency and reducing heatsink need. | Use Scenario: 12 V to 5 V step-down conversion in body control module (BCM) or infotainment supply. IC Role / Device Role / Timing Role: AEC-Q101-qualified rectifier ensuring long-term reliability under automotive thermal and vibration stress. Use Value: Validated operation from –40 °C to +105 °C ambient with 125 °C TJ max meets ISO 16750-4 requirements. |
| USB-C Power Adapter | Industrial Sensor Node Power |
Use Scenario: Output rectification in compact 20–65 W USB PD adapters with high switching frequency (>100 kHz). IC Role / Device Role / Timing Role: Fast-switching Schottky rectifier minimizing reverse recovery loss and EMI generation. Use Value: Near-zero reverse recovery charge (Qrr) eliminates tail current, simplifying EMI filter design and improving light-load efficiency. | Use Scenario: Primary-side rectification in battery-backed industrial sensor nodes with wide ambient temperature range. IC Role / Device Role / Timing Role: Low-leakage (1 mA @ 25 °C, 10 mA @ 100 °C) rectifier preserving battery life in standby mode. Use Value: Low IR minimizes self-discharge in energy-harvesting and coin-cell applications over extended shelf life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS1L40 | Same 1 A / 40 V rating; VF = 0.52 V @ 1 A; TO-220AC package (not DO-41) | Requires PCB footprint change; better thermal performance (RθJA ≈ 65 °C/W) but larger size | Select when higher thermal headroom is needed and board space allows TO-220 mounting. |
| ON Semi MBR140 | 1 A / 40 V; VF = 0.55 V @ 1 A; DO-41 package; no AEC-Q101 qualification | Not qualified for automotive use; suitable for commercial/industrial SMPS where qualification is not mandated | Choose for cost-sensitive non-automotive designs requiring same footprint and basic performance. |
Compared with STPS1L40 and MBR140, the 1N5819HB0G uniquely combines AEC-Q101 qualification, DO-41 compatibility, and 40 V VRRM in a single offering-making it the only drop-in solution for automotive-grade, space-constrained rectification where qualification and form factor are jointly required.
Availability
1N5819HB0G is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial DC-DC modules, and USB-C power adapters requiring stable component supply and AEC-Q101 compliance.
Supply support for 1N5819HB0G 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and consumer markets since 1979.
The 1N5819HB0G belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-reliability, high-efficiency power conversion in harsh-environment automotive and industrial applications.
FAQ
What is the peak repetitive reverse voltage rating of the 1N5819HB0G?
The 1N5819HB0G has a peak repetitive reverse voltage (VRRM) rating of 40 V. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version H2104). It defines the maximum DC or repetitive reverse voltage the device can block continuously without breakdown. Exceeding this rating risks irreversible avalanche failure.
Is the 1N5819HB0G suitable for automotive applications?
Yes, the 1N5819HB0G is AEC-Q101 qualified, as indicated by the "H" suffix in its ordering code. This certification confirms it has passed stress tests including high-temperature reverse bias, temperature cycling, and unbiased highly accelerated stress testing-meeting automotive electronic component reliability requirements. The 1N5819HB0G is explicitly intended for automotive power supply designs.
What does the "B0G" suffix mean in 1N5819HB0G?
The "B0G" suffix in 1N5819HB0G denotes packaging and environmental compliance: "B" indicates tape-and-reel packaging (5,000 pcs/reel), "0" is a revision placeholder, and "G" signifies green (halogen-free) compound per IEC 61249-2-21. This matches Taiwan Semiconductor's official ordering information table, confirming RoHS and halogen-free compliance.
What is the forward voltage drop of the 1N5819HB0G at 1 A and 25 °C?
The forward voltage drop (VF) of the 1N5819HB0G is 0.60 V maximum at IF = 1 A and TJ = 25 °C, per the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) to avoid self-heating. At higher temperatures or continuous DC, VF decreases slightly due to negative temperature coefficient of Schottky diodes.
Does the 1N5819HB0G have a guard ring structure?
Yes, the 1N5819HB0G incorporates a guard ring structure, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. This design feature enhances edge termination robustness, preventing premature breakdown under transient overvoltage conditions-particularly beneficial in inductive load switching and unclamped flyback circuits.
1N5819HB0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 600 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 mA @ 40 V
- Capacitance @ Vr, F:
- 55pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
- Operating Temperature - Junction:
- -55°C ~ 125°C
1N5819HB0G FAQ
1.How can I place an order for 1N5819HB0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5819HB0G 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 1N5819HB0G reliable?
The price and inventory of 1N5819HB0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5819HB0G is usually 5 days.
3.What payment methods are accepted for 1N5819HB0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5819HB0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5819HB0G?
1N5819HB0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5819HB0G 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 1N5819HB0G?
For technical support, including 1N5819HB0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5819HB0G requirements.
6.How does Aetrix verify that 1N5819HB0G is sourced from the original manufacturer or authorized distributors?
All 1N5819HB0G 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 1N5819HB0G meets industry standards.
7.What is the process for return or replacement of 1N5819HB0G?
All 1N5819HB0G units undergo pre-shipment inspection (PSI). If there is an issue with 1N5819HB0G, 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 1N5819HB0G part is unused and in its original packaging.
Return procedure for 1N5819HB0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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