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Diodes Incorporated SF1JWF-7
- Part No.:
- SF1JWF-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- SOD-123F
- Datasheet:
-
SF1JWF-7.pdf
- Description:
- DIODE GEN PURP 600V 1A SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:1,093
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Product details
Overview
SF1JWF-7 from Diodes Incorporated is a 1.0A, 600V surface-mount super-fast rectifier in SOD123F package, optimized for boost diode roles in PFC stages and secondary-side rectification in high-frequency DC-DC converters. It delivers 1.7V max forward voltage at 1A/25°C, 35ns reverse recovery time, and 5µA max reverse leakage at 600V/25°C-enabling high-efficiency operation in LED lighting drivers and flat-panel display power supplies.
For engineers reviewing the SF1JWF-7 datasheet, SF1JWF-7 pinout, SF1JWF-7 application, or SF1JWF-7 equivalent, key selection criteria include its 600V VRRM, soft-switching behavior, thermal resistance (RθJA = 95°C/W), SOD123F footprint compatibility, and suitability for 150°C junction temperature operation in compact consumer power designs.
Technical Context
The SF1JWF-7 employs a planar epitaxial silicon junction with glass passivation to achieve stable 600V reverse blocking and low 35ns tRR under IF = 0.5A / IR = 1.0A conditions. Its soft recovery waveform minimizes EMI in high-frequency switching topologies.
Designed for surface-mount assembly on FR-4 PCBs with 2.1mm × 2.1mm copper pads, it sustains 1.7W power dissipation at TA = 25°C and derates linearly to zero at 150°C ambient, supporting operation in thermally constrained consumer enclosures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - supports input rectification in universal AC mains (85–265VAC) with margin for surge transients |
| IO | 1.0 A - rated average forward current for continuous conduction mode in PFC and DC-DC secondaries |
| VF(MAX) | 1.7 V @ 1A, 25°C - limits conduction loss to ≤1.7W per device in high-current paths |
| tRR | 35 ns - enables use in >300kHz switching converters without excessive switching loss or ringing |
| IR(MAX) | 5 µA @ 600V, 25°C - ensures minimal standby power loss in always-on LED and display systems |
| TJ Range | −65°C to +150°C - qualified for sealed, high-ambient environments like enclosed LED drivers |
| RθJA | 95 °C/W - defines thermal design requirement: ≤1.7W dissipation needs <162°C rise above ambient |
Pinout & Package
Package: SOD123F - ultra-compact surface-mount plastic package (1.80mm × 2.70mm × 1.15mm), cathode-banded polarity, matte tin-plated copper leadframe, RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to switch node or transformer secondary in flyback/freewheeling configurations |
| Cathode | Forward current exit / reverse-blocking terminal | Connected to output rail or PFC capacitor; marked by visible band on package body |
Key Features
| Feature | Design Value |
|---|---|
| Super-fast soft recovery | tRR = 35ns with low IRR/trr ratio - reduces voltage overshoot and EMI in hard-switched converters |
| Glass passivated junction | Enhanced moisture resistance and long-term reliability under thermal cycling in consumer-grade assemblies |
| SOD123F footprint | 0.016g mass and 2.7mm length - enables high-density layout in space-constrained LED driver PCBs |
| High VRRM/IO ratio | 600V rating at 1A - allows single-diode solution in 24W–30W offline SMPS without series stacking |
| Lead-free & green construction | <900ppm Br+Cl, <1000ppm Sb - meets global environmental compliance for export to EU, Japan, and China |
Applications
| Flat Panel Display Power Supply | USB-C PD Charger Secondary Rectifier |
|---|---|
Use Scenario: High-efficiency 12V/2A auxiliary rail generation in LCD TV mainboard power stage. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck converter, clamping inductive kick during low-side FET off-time. Use Value: 35ns tRR prevents cross-conduction loss with synchronous MOSFET; 1.7V VF keeps conduction loss below 1.7W at full load. | Use Scenario: Output rectification in 45W USB-C PD adapter using quasi-resonant flyback topology. IC Role / Device Role / Timing Role: Secondary-side super-fast rectifier replacing Schottky, operating at 100–150kHz with zero-voltage switching assist. Use Value: 600V VRRM accommodates reflected transient spikes; 5µA IR ensures <1mW standby loss at 20V output. |
| LED Driver Boost Stage | Smart Home IoT Power Module |
Use Scenario: Boost diode in constant-current LED driver powering 24V string of 8× white LEDs (72W). IC Role / Device Role / Timing Role: Unidirectional current path during inductor discharge phase in continuous conduction mode (CCM) boost converter. Use Value: Soft recovery suppresses high-frequency ringing on 24V rail; 150°C TJ rating permits operation inside sealed aluminum housing. | Use Scenario: Input rectification and hold-up diode in compact 5V/1A AC-DC module for battery-less smart sensors. IC Role / Device Role / Timing Role: Bridge output freewheeling diode and bulk capacitor charging path in miniaturized offline regulator. Use Value: SOD123F size fits 8mm² board area budget; 95°C/W RθJA enables natural convection cooling without heatsink. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L06S | Same 600V VRRM, but TO-277 package (larger footprint); tRR = 30ns, VF = 1.6V @ 1A | Requires PCB re-layout; better thermal performance (RθJA ≈ 70°C/W) but incompatible with SOD123F land pattern | Select when higher power handling (>1.5A) or lower thermal resistance is required and board space allows |
| MBR160ESFT1G | 60V Schottky, not 600V; VF = 0.52V @ 1A, but no reverse blocking capability above 60V | Only suitable for low-voltage DC-DC outputs (≤24V); cannot replace SF1JWF-7 in AC-input or PFC stages | Choose only for secondary-side <24V rectification where ultra-low VF outweighs voltage rating need |
Compared with STTH1L06S and MBR160ESFT1G, the SF1JWF-7 uniquely balances 600V capability, SOD123F compactness, and 35ns soft recovery-making it optimal for space-limited, high-input-voltage consumer power stages where thermal and EMI constraints rule out both larger packages and low-VR Schottkys.
Availability
SF1JWF-7 is available at Aetrix Electronics and suitable for flat panel display power supplies, USB-C PD charger secondary rectification, and LED driver boost stages requiring stable component supply across production ramps and long-life consumer programs.
Supply support for SF1JWF-7 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, manufacturing, and sales operations across Asia, Europe, and North America.
The SF1JWF-7 belongs to Diodes' Super-Fast Rectifier product line, engineered specifically for high-frequency, high-reliability AC-DC and DC-DC conversion in cost-sensitive, thermally constrained consumer electronics.
FAQ
What is the maximum junction temperature and how does it affect PCB layout?
The SF1JWF-7 has a rated TJ range of −65°C to +150°C. At 150°C, its forward voltage drops to ~1.1V and leakage rises to 0.3mA, but power dissipation must be limited to zero. Layout must use ≥2.1mm × 2.1mm copper pads on 2oz FR-4 to maintain RθJA ≤95°C/W and avoid exceeding 150°C under 1A DC load.
Is SF1JWF-7 suitable for automotive applications?
No-SF1JWF-7 is not AEC-Q101 qualified. While it operates from −65°C to +150°C, Diodes explicitly states that automotive-grade variants require PPAP capability, IATF 16949 manufacturing, and AEC-Q101 qualification-none of which apply to this part. Use only in consumer, industrial, or commercial equipment.
How does its soft recovery behavior reduce EMI compared to standard fast rectifiers?
Soft recovery limits the rate of diode current collapse (di/dt) during turn-off, reducing high-frequency spectral content in switching node waveforms. With tRR = 35ns and low stored charge, SF1JWF-7 generates less ringing on 24V/48V rails than standard fast rectifiers (tRR > 50ns), easing EMI filter design in Class B consumer products.
Can SF1JWF-7 replace a Schottky diode in a 24V output circuit?
Yes-but only if reverse voltage stress remains <600V and efficiency trade-offs are acceptable. Its 1.7V VF yields higher conduction loss than a 0.5V Schottky, but enables safe operation during 400V transient spikes common in offline supplies where Schottkys would avalanche and fail.
SF1JWF-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 600 V
- Capacitance @ Vr, F:
- 7pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
- Operating Temperature - Junction:
- -65°C ~ 150°C
SF1JWF-7 FAQ
1.How can I place an order for SF1JWF-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for SF1JWF-7 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 SF1JWF-7 reliable?
The price and inventory of SF1JWF-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF1JWF-7 is usually 5 days.
3.What payment methods are accepted for SF1JWF-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF1JWF-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF1JWF-7?
SF1JWF-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF1JWF-7 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 SF1JWF-7?
For technical support, including SF1JWF-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF1JWF-7 requirements.
6.How does Aetrix verify that SF1JWF-7 is sourced from the original manufacturer or authorized distributors?
All SF1JWF-7 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 SF1JWF-7 meets industry standards.
7.What is the process for return or replacement of SF1JWF-7?
All SF1JWF-7 units undergo pre-shipment inspection (PSI). If there is an issue with SF1JWF-7, 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 SF1JWF-7 part is unused and in its original packaging.
Return procedure for SF1JWF-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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