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Diodes Incorporated SF10DG_HF
- Part No.:
- SF10DG_HF
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
SF10DG_HF.pdf
- Description:
- Superfast Recovery Rectifier DO-
- Quantity:
- Payment:
- Shipping:
Inventory:2,355
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Product details
Overview
SF10DG_HF from Diodes Incorporated is a 1.0A, 200V peak repetitive reverse voltage super-fast glass passivated rectifier diode in DO-41 package, featuring 35ns reverse recovery time, 0.95V forward voltage at 1.0A, and 10μA reverse leakage at 25°C, used in high-efficiency AC/DC front-end rectification for switch-mode power supplies.
For engineers reviewing the SF10DG_HF datasheet, SF10DG_HF pinout, SF10DG_HF application, or SF10DG_HF equivalent, key selection criteria include VRRM=200V, trr=35ns, VFM=0.95V @1A, IRM=10μA @25°C, and DO-41 thermal resistance RθJA=75°C/W - critical for thermal design and efficiency validation in compact power converters.
Technical Context
This discrete silicon rectifier employs glass passivated die construction to ensure stable junction isolation and enhanced surge robustness. Its super-fast switching (trr=35ns) enables operation in 50–100kHz SMPS topologies without excessive switching loss, while the 30A non-repetitive surge rating supports inrush current handling in offline inputs.
The device operates with a cathode-banded polarity marking and exhibits low junction-to-ambient thermal resistance (75°C/W), requiring minimal PCB copper area for thermal management at full 1.0A average current under TA=75°C derating conditions per Figure 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum peak reverse voltage the diode blocks reliably in repetitive AC line applications |
| IO @ TA=75°C | 1.0 A - Continuous average forward current capability with leads held at ambient at 9.5mm from case |
| VFM @ IF=1.0A | 0.95 V - Forward conduction loss directly impacts conduction efficiency and thermal rise in rectifier stage |
| trr | 35 ns - Enables high-frequency switching with minimal reverse recovery charge (Qrr), reducing EMI and losses |
| IRM @ 25°C | 10 μA - Low leakage preserves hold-up capacitance and minimizes standby power in offline PSUs |
| RθJA | 75 °C/W - Thermal resistance defines required PCB copper area for safe operation at rated current |
Pinout & Package
DO-41 axial-leaded plastic package with cathode band marking; lead finish is matte tin, solderable per MIL-STD-202 Method 208; weight ≈0.3 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward current entry node | Connected to AC input or transformer secondary; must withstand 30A surge during cold start |
| Cathode (banded end) | Forward current exit node | Connected to bulk capacitor positive; polarity marking ensures correct orientation in high-voltage rectifier bridges |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Eliminates moisture-induced junction degradation, enabling reliable operation in humid industrial environments |
| Super-fast switching (trr = 35 ns) | Reduces reverse recovery energy loss by >40% vs standard rectifiers, improving efficiency in 65–100kHz SMPS |
| 30A IFSM rating | Withstands 8.3ms half-sine surge without failure - sufficient for 115VAC/230VAC inrush in universal-input designs |
| RoHS-compliant tin plating | Ensures compatibility with lead-free reflow profiles and eliminates post-soldering cleaning requirements |
Applications
| AC/DC Adapter Front-End | Industrial PLC Power Supply |
|---|---|
Use Scenario: Rectifying 50/60Hz AC mains into DC for 12V/24V output adapters rated ≤30W. IC Role / Device Role / Timing Role: Primary-side unidirectional current switch converting AC to pulsating DC before bulk filtering. Use Value: 0.95V VFM minimizes conduction loss at 1A load, while 35ns trr suppresses high-frequency ringing that would otherwise require snubber networks. | Use Scenario: Input rectification in DIN-rail mounted 24V DC power modules for programmable logic controllers. IC Role / Device Role / Timing Role: High-reliability discrete rectifier in continuous-duty industrial power conversion stages. Use Value: Glass passivation and -65°C to +150°C operating range ensure long-term stability under temperature cycling and vibration stress. |
| LED Driver Auxiliary Supply | Embedded System Standby Converter |
Use Scenario: Generating low-power auxiliary VCC for LED driver ICs from rectified AC line. IC Role / Device Role / Timing Role: Compact, low-leakage rectifier feeding linear regulator or small-capacitor hold-up network. Use Value: 10μA IRM at 25°C prevents significant discharge of bias capacitors during extended no-load standby periods. | Use Scenario: Providing always-on 5V/3.3V rail in smart meters or IoT gateways with AC mains backup. IC Role / Device Role / Timing Role: Mains-connected rectifier in ultra-low-quiescent auxiliary converter powering real-time clock and communication ICs. Use Value: DO-41 package allows through-hole mounting on control board edge, simplifying creepage/clearance compliance for reinforced insulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L06U | VRRM=600V, trr=50ns, VFM=1.15V @1A, SOD-123FL package | Higher voltage rating but slower recovery and surface-mount only | Select when 600V blocking is required and PCB space constraints favor SMT over axial leads |
| ON Semi MUR120 | VRRM=200V, trr=35ns, VFM=0.93V @1A, DO-41 package, RoHS compliant | Identical electrical specs and package; minor process variation in leakage (<5μA typical) | Drop-in replacement where second-source qualification is mandated for supply chain resilience |
Compared with STTH1L06U, SF10DG_HF offers lower forward drop and axial through-hole mounting; versus MUR120, it provides identical performance with Diodes Inc.'s validated manufacturing traceability and consistent 10μA IRM specification.
Availability
SF10DG_HF is available at Aetrix Electronics and suitable for AC/DC adapter front-ends, industrial PLC power supplies, and LED driver auxiliary supplies requiring stable component supply and long-lifecycle support.
Supply support for SF10DG_HF 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 US.
SF10DG_HF belongs to the SF10xG super-fast rectifier family, engineered for high-efficiency, cost-sensitive offline power conversion where fast recovery and low conduction loss are essential.
FAQ
Is SF10DG_HF suitable for use in 230VAC input circuits?
Yes - its 200V VRRM rating meets the peak line voltage requirement (≈325V) only when used with appropriate derating and circuit protection. For direct 230VAC rectification, a ≥400V-rated device like SF10FG_HF is recommended to ensure margin against transients and tolerance stack-up.
What is the maximum allowable PCB trace width for thermal relief with SF10DG_HF at 1.0A?
Per the 75°C/W RθJA specification and Figure 1 derating curve, a minimum 5mm² copper pour (e.g., 5mm × 1mm) connected to both leads is required to maintain junction temperature ≤125°C at TA=75°C. Thicker copper or internal layers further reduce thermal resistance.
Does SF10DG_HF have a specified reverse recovery charge (Qrr)?
No Qrr value is published in DS24012 Rev. 5. However, trr=35ns measured under IF=0.5A/IR=1.0A/Irr=0.25A implies Qrr ≈ 17.5nC (calculated as 0.5 × IR × trr), suitable for moderate-frequency flyback and forward converters without added snubbers.
Can SF10DG_HF be substituted with SF10AG_HF in a design?
No - SF10AG_HF has VRRM=50V and is rated only for low-voltage DC-DC outputs or signal-level applications. Substituting it in a 200V rectifier position will cause immediate avalanche failure under normal operating voltage.
SF10DG_HF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 200 V
- Capacitance @ Vr, F:
- 75pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-41
- Operating Temperature - Junction:
- -65°C ~ 150°C
SF10DG_HF FAQ
1.How can I place an order for SF10DG_HF through Aetrix?
Please submit a Request for Quotation (RFQ) for SF10DG_HF 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 SF10DG_HF reliable?
The price and inventory of SF10DG_HF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF10DG_HF is usually 5 days.
3.What payment methods are accepted for SF10DG_HF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF10DG_HF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF10DG_HF?
SF10DG_HF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF10DG_HF 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 SF10DG_HF?
For technical support, including SF10DG_HF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF10DG_HF requirements.
6.How does Aetrix verify that SF10DG_HF is sourced from the original manufacturer or authorized distributors?
All SF10DG_HF 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 SF10DG_HF meets industry standards.
7.What is the process for return or replacement of SF10DG_HF?
All SF10DG_HF units undergo pre-shipment inspection (PSI). If there is an issue with SF10DG_HF, 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 SF10DG_HF part is unused and in its original packaging.
Return procedure for SF10DG_HF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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