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Diodes Incorporated SF30GG-T
- Part No.:
- SF30GG-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
SF30GG-T.pdf
- Description:
- DIODE GEN PURP 400V 3A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:7,683
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Product details
Overview
SF30GG-T from Diodes Incorporated is a 400V, 3.0A super-fast glass passivated rectifier diode in DO-201AD package, featuring 35ns reverse recovery time, 0.95V forward voltage at 3.0A, and 125A non-repetitive surge capability - deployed in high-frequency AC/DC adapters and switch-mode power supplies.
For engineers reviewing the SF30GG-T datasheet, SF30GG-T pinout, SF30GG-T application, or SF30GG-T equivalent, key selection criteria include VRRM=400V, trr=35ns, IF(AV)=3.0A at TA=55°C, low IRM=5.0μA at 25°C, and DO-201AD thermal resistance RθJA=32°C/W for thermal design validation.
Technical Context
This super-fast rectifier uses a diffused junction and glass passivated die construction to achieve rapid carrier recombination, enabling efficient operation in 50–500kHz SMPS topologies. Its 35ns reverse recovery time and low 75pF junction capacitance minimize switching losses and EMI generation during hard commutation.
The device operates across –65°C to +150°C with cathode-band polarity marking and tin-plated leads compliant with MIL-STD-202 solderability. Thermal derating follows a defined curve: full 3.0A rating only at TA ≤55°C, dropping to ~1.8A at 100°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse voltage before breakdown; sets safe operating margin in 280V RMS bridge applications. |
| IF(AV) | 3.0 A at TA = 55°C - Average forward current rating under defined heatsinking; requires ≥9.5mm lead length for specified derating. |
| trr | 35 ns - Reverse recovery time measured at IF = 0.5A, IR = 1.0A, Irr = 0.25A; critical for minimizing turn-off loss in high-frequency converters. |
| VF | 0.95 V @ IF = 3.0A - Forward voltage drop directly impacts conduction loss and thermal rise in continuous-duty rectification. |
| IRM | 5.0 μA @ 25°C - Peak reverse leakage at rated DC blocking voltage; ensures low standby power in offline PSUs. |
| RθJA | 32 °C/W - Junction-to-ambient thermal resistance in free-air; determines required PCB copper area or heatsink for thermal compliance. |
Pinout & Package
Package: DO-201AD molded plastic case (UL 94V-0), 1.12g weight, cathode band polarity marking, tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry terminal | Connected to AC input or transformer secondary; must withstand 125A surge peaks without metallization failure. |
| Cathode | Forward current exit terminal | Marked with band; ties to output capacitor or DC bus; low VF ensures minimal voltage drop into load. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Enhances humidity resistance and long-term reliability in humid industrial environments without hermetic sealing. |
| Super-fast switching (trr = 35 ns) | Reduces switching loss by >40% vs. standard fast rectifiers in 100–300kHz flyback designs. |
| 125A IFSM surge rating | Withstands cold-start inrush and line transients in universal-input AC/DC front-ends without degradation. |
| Low IRM (5.0 μA @ 25°C) | Minimizes no-load power consumption in energy-efficient adapters meeting DOE Level VI and EU CoC v5. |
Applications
| AC/DC Adapter Rectification | SMPS Output Rectification |
|---|---|
Use Scenario: 12V/3A universal-input offline adapter for consumer electronics. IC Role / Device Role / Timing Role: Primary-side bridge rectifier converting 85–265V AC to pulsating DC before bulk capacitor. Use Value: 35ns trr and 0.95V VF reduce conduction + switching losses, enabling >88% efficiency at full load. |
Use Scenario: Secondary-side rectifier in 24V/2.5A forward-converter telecom PSU. IC Role / Device Role / Timing Role: High-efficiency synchronous rectifier replacement in low-voltage, high-current outputs. Use Value: Low RθJA=32°C/W and 3.0A rating allow direct PCB mounting without heatsink in space-constrained modules. |
| LED Driver Input Stage | Industrial Control Power Supply |
Use Scenario: Constant-current LED driver for outdoor signage with wide ambient temperature range. IC Role / Device Role / Timing Role: Input rectifier handling 100–277V AC line with surge immunity per IEC 61000-4-5. Use Value: 125A IFSM and –65°C to +150°C Tj range ensure robustness against lightning-induced surges and desert/winter extremes. |
Use Scenario: 24V auxiliary supply in PLC backplane with high EMC requirements. IC Role / Device Role / Timing Role: Bridge leg component in compact, fanless DIN-rail power module. Use Value: Glass passivation and 75pF CT suppress high-frequency noise coupling into sensitive analog I/O circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L04 | VRRM=400V, trr=30ns, VF=0.92V @ 3A, TO-220AC package (RθJA=25°C/W) | Higher thermal performance but larger footprint; requires mounting hardware and isolation. | Select when board-level thermal management allows TO-220 and lower trr is prioritized over size. |
| ES3D-E3/57T | VRRM=200V, trr=35ns, VF=0.95V @ 3A, DO-201AD, RoHS-compliant | Half the VRRM rating; unsuitable for 230VAC mains without derating or series stacking. | Use only in 115VAC-only or low-voltage DC-DC input stages where 200V blocking suffices. |
Compared with STTH3L04 and ES3D-E3/57T, SF30GG-T delivers optimal balance of DO-201AD compactness, 400V robustness, and 35ns speed - making it preferred for cost-sensitive, space-constrained 230VAC-input SMPS where TO-220 mounting is impractical.
Availability
SF30GG-T is available at Aetrix Electronics and suitable for AC/DC adapters, LED drivers, and industrial control power supplies requiring stable component supply and legacy-design continuity.
Supply support for SF30GG-T 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, specializing in high-reliability power, signal integrity, and protection solutions.
SF30GG-T belongs to the SF30xG super-fast rectifier product line, engineered for high-efficiency, high-frequency switching power conversion in cost-sensitive consumer and industrial applications.
FAQ
Is SF30GG-T RoHS compliant and lead-free?
Yes, SF30GG-T features a lead-free finish and is RoHS compliant per Directive 2011/65/EU Annex II, with high-temperature solder exemption applied per EU Directive Annex Notes 5 and 7. Tin-plated leads meet MIL-STD-202 Method 208 solderability requirements.
What is the maximum allowable junction temperature for SF30GG-T?
The absolute maximum junction temperature is +150°C, with storage temperature ranging from –65°C to +150°C. Continuous operation above this limit risks irreversible parametric shift or metallization failure, especially under high IFSM stress.
Can SF30GG-T replace SF30FG-T in an existing design?
Yes - both share identical DO-201AD package, 3.0A rating, and 125A surge capability; SF30GG-T offers higher VRRM (400V vs. 300V) and same 35ns trr, providing enhanced margin in 230VAC applications without layout change.
Why is SF30GG-T marked "NOT RECOMMENDED FOR NEW DESIGN"?
Diodes Incorporated issued this notice due to newer-generation alternatives (e.g., FRED Pt or SiC Schottky devices) offering superior trr, VF, and thermal performance. SF30GG-T remains fully supported for legacy production and repair, with no imminent obsolescence.
SF30GG-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 40 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 400 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -65°C ~ 150°C
SF30GG-T FAQ
1.How can I place an order for SF30GG-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SF30GG-T 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 SF30GG-T reliable?
The price and inventory of SF30GG-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF30GG-T is usually 5 days.
3.What payment methods are accepted for SF30GG-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF30GG-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF30GG-T?
SF30GG-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF30GG-T 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 SF30GG-T?
For technical support, including SF30GG-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF30GG-T requirements.
6.How does Aetrix verify that SF30GG-T is sourced from the original manufacturer or authorized distributors?
All SF30GG-T 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 SF30GG-T meets industry standards.
7.What is the process for return or replacement of SF30GG-T?
All SF30GG-T units undergo pre-shipment inspection (PSI). If there is an issue with SF30GG-T, 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 SF30GG-T part is unused and in its original packaging.
Return procedure for SF30GG-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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