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Diodes Incorporated SF2GDF-13
- Part No.:
- SF2GDF-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
SF2GDF-13.pdf
- Description:
- DIODE GEN PURP 400V 2A DFLAT
- Quantity:
- Payment:
- Shipping:
Inventory:5,861
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Product details
Overview
SF2GDF-13 from Diodes Incorporated is a 400 V, 2.0 A surface-mount super-fast rectifier in the D-FLAT package, designed for secondary rectification and freewheeling in high-frequency AC-DC and DC-DC converters. It delivers 1.3 V max forward voltage at 2 A, 5 µA max reverse leakage at 25°C, 35 ns reverse recovery time, and operates up to +150°C junction temperature-enabling efficient, compact power supplies for consumer chargers and adapters.
For engineers reviewing the SF2GDF-13 datasheet, SF2GDF-13 pinout, SF2GDF-13 application, or SF2GDF-13 equivalent, key selection criteria include its 400 V blocking rating, thermal resistance (RθJA = 56 °C/W), D-FLAT low-profile footprint, superfast recovery for <1 MHz switching, and RoHS-compliant matte tin terminals suitable for lead-free reflow.
Technical Context
This device is a single-junction, planar, glass-passivated silicon PN junction rectifier optimized for high-speed switching. Its 35 ns reverse recovery time and 50 A non-repetitive surge rating support robust operation in boost PFC stages and synchronous rectifier flyback topologies.
The D-FLAT package provides low thermal resistance (RθJT = 30 °C/W) and enables direct PCB copper pad heat sinking. Its cathode-band polarity marking and 0.0354 g mass support automated placement in space-constrained consumer power designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Sustains peak reverse voltage in 230 VAC input rectification with margin |
| IO | 2.0 A @ TT = +88°C - Continuous output current capability on standard FR-4 PCB |
| VF Max | 1.3 V @ IF = 2 A - Limits conduction loss to ≤2.6 W in high-duty-cycle operation |
| tRR | 35 ns - Enables efficient operation up to ~1 MHz switching frequency |
| IR Max | 5 µA @ 25°C - Minimizes standby power loss in no-load adapter modes |
| TJ Range | –55°C to +150°C - Supports sealed enclosure operation in high-ambient environments |
Pinout & Package
The SF2GDF-13 uses the D-FLAT surface-mount package (2.25–2.95 mm × 3.95–4.60 mm × 0.90–1.10 mm height), featuring a single anode and cathode terminal with cathode band polarity marking. Its low-profile design supports 0.4" × 0.5" thermal pad layout per JEDEC MS-012.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current entry point | Connected to switching node or transformer secondary in freewheeling path |
| Cathode | Output current exit point | Connected to output capacitor or load rail; marked with visible band |
Key Features
| Feature | Design Value |
|---|---|
| Superfast recovery (35 ns) | Reduces switching losses and EMI in >300 kHz SMPS designs |
| Glass passivation | Ensures long-term reliability under thermal cycling and humidity exposure |
| D-FLAT low-profile package | Enables ≤1.1 mm board height in ultra-thin AC adapters and USB-C PD modules |
| RoHS-compliant matte tin finish | Supports lead-free reflow (J-STD-020 Level 1) without solderability degradation |
Applications
| USB-C Power Delivery Adapter | LED Driver Secondary Rectification |
|---|---|
Use Scenario: 65 W compact wall charger with active clamp flyback topology operating at 500 kHz. IC Role / Device Role / Timing Role: Freewheeling diode conducting during MOSFET off-time; handles 2 A average output current. Use Value: 35 ns tRR minimizes reverse recovery charge loss, improving efficiency by ≥0.8% vs. standard fast rectifiers. | Use Scenario: Constant-current LED driver for commercial downlights with 230 VAC input and 48 V/1.5 A output. IC Role / Device Role / Timing Role: Secondary-side rectifier converting transformer output to DC bus; operates continuously at +105°C ambient. Use Value: 5 µA IR at 25°C and 100 µA at 100°C ensure minimal no-load power draw and stable regulation. |
| Industrial DC-DC Converter | Home Appliance Inverter Control |
Use Scenario: 24 V input, 12 V/2 A isolated DC-DC module for PLC I/O modules in factory automation. IC Role / Device Role / Timing Role: Output rectifier in synchronous rectified forward converter; subjected to 50 A surge transients. Use Value: 50 A IFSM rating withstands motor startup surges without degradation. | Use Scenario: Variable-speed inverter for HVAC blower motor with integrated PFC stage. IC Role / Device Role / Timing Role: Boost diode in continuous conduction mode (CCM) PFC front-end; conducts at 50 kHz. Use Value: 400 V VRRM provides 2× margin over 230 VAC peak (325 V), ensuring safe operation during line surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB240-E3/54 (Vishay) | 40 V lower VRRM (360 V); 50 ns tRR; DO-201AD package | Larger footprint; unsuitable for 230 VAC-derived 400 V designs | Select only if system peak reverse stress remains ≤360 V and board space allows axial package |
| ES2D (ON Semiconductor) | Same 400 V VRRM, but 1.7 V VF at 2 A; SMA package | Higher conduction loss (+0.8 W); less thermally efficient than D-FLAT | Prefer SF2GDF-13 where thermal management or efficiency is critical |
Compared with SB240-E3/54 and ES2D, SF2GDF-13 offers superior thermal performance (RθJA = 56 °C/W), tighter VF tolerance, and smaller D-FLAT footprint-making it optimal for high-density, high-efficiency consumer power supplies.
Availability
SF2GDF-13 is available at Aetrix Electronics and suitable for USB-C PD adapters, LED drivers, industrial DC-DC converters, and home appliance inverters requiring stable component supply across production lifecycles.
Supply support for SF2GDF-13 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 SF2GDF-13 belongs to Diodes' super-fast rectifier product line, engineered specifically for high-frequency, high-temperature power conversion in cost-sensitive consumer and industrial applications.
FAQ
What is the maximum allowable junction temperature for SF2GDF-13?
The SF2GDF-13 has a rated operating junction temperature range of –55°C to +150°C. Its thermal resistance (RθJA = 56 °C/W) means that at 2 A DC load and 25°C ambient, junction temperature rises approximately 112°C above ambient-requiring proper PCB copper area and airflow to stay within limits. Derating begins at +88°C terminal temperature per datasheet Fig. 1.
Is SF2GDF-13 compatible with lead-free reflow processes?
Yes. SF2GDF-13 features matte tin-plated copper leadframe terminals qualified to J-STD-020 moisture sensitivity Level 1 and supports standard lead-free reflow profiles (peak 260°C). Its green molding compound meets UL 94V-0 flammability rating and contains <900 ppm bromine/chlorine and <1000 ppm antimony.
How does SF2GDF-13 differ from SF2DDF-13 and SF2JDF-13?
SF2GDF-13 (400 V), SF2DDF-13 (200 V), and SF2JDF-13 (600 V) share identical D-FLAT packaging, 2 A current rating, 35 ns tRR, and thermal characteristics-but differ only in peak repetitive reverse voltage (VRRM) and corresponding forward voltage (VF = 1.1 V, 1.3 V, 1.7 V respectively). Pinout and footprint are fully interchangeable.
Can SF2GDF-13 be used in place of a Schottky diode?
No-it is a PN junction rectifier, not a Schottky. While it matches Schottky speed (35 ns tRR), its 1.3 V VF is higher than typical Schottky devices (<0.5 V), resulting in greater conduction loss. Use only where higher VRRM or temperature stability (>125°C) outweighs forward loss concerns.
SF2GDF-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 2-SMD, Flat Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 400 V
- Capacitance @ Vr, F:
- 50pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D-Flat
- Operating Temperature - Junction:
- -55°C ~ 150°C
SF2GDF-13 FAQ
1.How can I place an order for SF2GDF-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SF2GDF-13 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 SF2GDF-13 reliable?
The price and inventory of SF2GDF-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF2GDF-13 is usually 5 days.
3.What payment methods are accepted for SF2GDF-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF2GDF-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF2GDF-13?
SF2GDF-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF2GDF-13 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 SF2GDF-13?
For technical support, including SF2GDF-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF2GDF-13 requirements.
6.How does Aetrix verify that SF2GDF-13 is sourced from the original manufacturer or authorized distributors?
All SF2GDF-13 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 SF2GDF-13 meets industry standards.
7.What is the process for return or replacement of SF2GDF-13?
All SF2GDF-13 units undergo pre-shipment inspection (PSI). If there is an issue with SF2GDF-13, 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 SF2GDF-13 part is unused and in its original packaging.
Return procedure for SF2GDF-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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