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Taiwan Semiconductor Corporation SFT12G R0G
- Part No.:
- SFT12G R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- T-18, Axial
- Datasheet:
-
SFT12G R0G.pdf
- Description:
- DIODE GEN PURP 100V 1A TS-1
- Quantity:
- Payment:
- Shipping:
Inventory:4,841
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Product details
Overview
SFT12G R0G from Taiwan Semiconductor is a 1 A, 100 V super fast rectifier diode in TS-1 package, featuring 35 ns reverse recovery time, 0.95 V forward voltage at 1 A/25°C, and 30 A surge capability-used in DC-DC converters and switching-mode inverters for high-efficiency power conversion.
For engineers reviewing the SFT12G R0G datasheet, SFT12G R0G pinout, SFT12G R0G application, or SFT12G R0G equivalent, key selection criteria include repetitive peak reverse voltage (100 V), thermal resistance (100 °C/W), junction temperature range (−55 to +150 °C), and AEC-Q101 qualification status (not applicable to R0G variant).
Technical Context
This super fast rectifier employs a single-die silicon PN junction optimized for low conduction loss and rapid carrier recombination. Its 35 ns trr and 0.95 V VF at 1 A enable efficient operation in high-frequency switching topologies up to several hundred kHz.
The TS-1 package provides surface-mount compatibility with pure tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance. Polarity is marked by a cathode band; device weight is approximately 0.200 g.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - maximum repetitive reverse blocking voltage; defines safe operating limit in flyback/freewheeling paths |
| IF | 1 A - continuous average forward current; sets steady-state power handling in DC-DC output stages |
| IFSM | 30 A - non-repetitive surge rating; supports inrush and transient overload without failure |
| trr | 35 ns - reverse recovery time; enables stable operation at switching frequencies >200 kHz |
| VF @ 1A, 25°C | 0.95 V - forward voltage drop; determines conduction loss (0.95 W at 1 A) and thermal design margin |
| RθJA | 100 °C/W - junction-to-ambient thermal resistance; requires ≤50 °C ambient rise for 150 °C max junction temp at full load |
| TJ Range | −55 to +150 °C - operational junction temperature window; supports industrial and under-hood automotive environments |
Pinout & Package
TS-1 package: surface-mount, single-anode/single-cathode configuration with cathode polarity indicated by molded band. Lead finish: pure tin, J-STD-002 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of switching node (e.g., MOSFET source or inductor return) |
| Cathode | Forward current exit / reverse blocking terminal | Connected to output rail or higher-potential node; cathode band marks this terminal physically |
Key Features
| Feature | Design Value |
|---|---|
| Super fast recovery | 35 ns trr enables use in 200–500 kHz SMPS without excessive switching loss or ringing |
| Low forward voltage | 0.95 V at 1 A reduces conduction loss by ~15% vs. standard FR1A-class rectifiers |
| High surge robustness | 30 A IFSM withstands 8.3 ms half-sine surges common in input rectification and motor drive freewheeling |
| RoHS & halogen-free | Complies with IEC 61249-2-21; supports environmentally regulated industrial and automotive supply chains |
Applications
| DC-DC Converter Output Rectification | Switching Inverter Freewheeling |
|---|---|
Use Scenario: Secondary-side synchronous or diode rectification in isolated 12 V–48 V telecom and server PSUs. IC Role / Device Role / Timing Role: Unidirectional current path enabling energy transfer during MOSFET off-time; reverse recovery timing critical for ZVS/ZCS transitions. Use Value: 35 ns trr minimizes tail current loss and EMI generation, improving efficiency by 0.5–1.2% over standard fast rectifiers at 300 kHz. | Use Scenario: Inductive load commutation in 24 V BLDC motor drivers and UPS inverters. IC Role / Device Role / Timing Role: Freewheeling path for back-EMF current when main switch turns off; fast recovery prevents cross-conduction and shoot-through risk. Use Value: 100 V VRRM and 30 A IFSM support 24–48 V systems with peak inductive spikes; 0.95 V VF lowers heat sink requirements. |
| AC-DC Adapter Secondary Rectification | Industrial PLC Power Supply Input Stage |
Use Scenario: Low-power offline adapters (10–30 W) with flyback topology and universal AC input. IC Role / Device Role / Timing Role: Output rectifier conducting only during transformer reset phase; reverse recovery must be faster than switching period. Use Value: 0.95 V VF improves light-load efficiency; TS-1 footprint allows compact PCB layout with minimal thermal pad area. | Use Scenario: 24 V auxiliary power supply in programmable logic controllers with wide ambient temperature range. IC Role / Device Role / Timing Role: Input-stage rectifier converting 36 VAC control rail to DC bus; operates continuously at −40 to +85 °C ambient. Use Value: −55 to +150 °C TJ range ensures reliability across extended temperature cycles; RoHS/halogen-free compliance meets industrial safety standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R01AP | 100 V VRRM, 35 ns trr, 0.97 V VF @ 1 A - near-identical electrical specs; TO-277A package (larger footprint) | Same 100 V/1 A rating but TO-277A requires PCB layout change; thermal resistance 75 °C/W (lower) | Prefer when board space allows larger package and lower thermal resistance is prioritized over footprint size |
| ES1B | 100 V VRRM, 35 ns trr, 1.0 V VF @ 1 A - slightly higher VF; SMA package (smaller, lower IFSM = 25 A) | SMA footprint saves area but limits surge handling; not AEC-Q101 qualified even in H-variant | Choose for cost-sensitive consumer designs where 25 A surge margin suffices and space is constrained |
Compared with STTH1R01AP and ES1B, SFT12G R0G offers optimal balance of TS-1 footprint compactness, 30 A surge headroom, and 0.95 V conduction loss-making it preferred for space-constrained industrial DC-DC modules requiring robust transient tolerance.
Availability
SFT12G R0G is available at Aetrix Electronics and suitable for DC-DC converter output rectification, switching inverter freewheeling, and industrial PLC power supply input stages requiring stable component supply and long-term manufacturability.
Supply support for SFT12G R0G 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 industrial, computing, and automotive markets since 1979.
The SFT1xG series is designed specifically for high-frequency, high-reliability power conversion-targeting applications demanding low VF, fast trr, and robust surge performance in compact surface-mount packages.
FAQ
What is the maximum junction temperature rating for SFT12G R0G?
The SFT12G R0G has a maximum junction temperature (TJ MAX) of +150 °C, with an operational range from −55 to +150 °C. This rating allows reliable use in industrial environments and under-hood automotive auxiliary systems where ambient temperatures exceed 85 °C. Derating curves confirm 1 A continuous current is sustainable up to 75 °C ambient with standard PCB copper area.
Does SFT12G R0G meet AEC-Q101 reliability standards?
No, SFT12G R0G does not meet AEC-Q101 qualification. The "R0G" suffix indicates standard industrial-grade version; AEC-Q101 variants carry "H" suffix (e.g., SFT12GH). While SFT12G R0G shares identical electrical and thermal specs with its AEC-Q101 counterpart, it lacks the required stress test documentation and lot-level qualification reporting mandated for automotive use.
What is the reverse recovery time (trr) specification for SFT12G R0G?
The SFT12G R0G has a maximum reverse recovery time (trr) of 35 ns, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value is confirmed across the full temperature range and enables stable operation in switching power supplies operating up to 500 kHz without significant switching loss or voltage overshoot.
How does the forward voltage (VF) of SFT12G R0G compare to other 100 V super fast rectifiers?
SFT12G R0G specifies 0.95 V typical forward voltage at 1 A and 25 °C-matching or slightly better than industry benchmarks like STTH1R01AP (0.97 V) and outperforming ES1B (1.0 V). At elevated temperatures (125 °C), VF remains below 0.85 V, supporting consistent conduction loss across operating conditions.
What packaging options are available for SFT12G R0G?
SFT12G R0G is supplied in TS-1 package on 5,000-piece tape-and-reel format (standard ordering code: SFT12G). Alternate packaging includes 3,000-piece ammo box (SFT12G A0G). No tray or bulk options are offered. All variants use pure tin-plated leads compliant with J-STD-002 and JESD201 Class 2 whisker testing.
SFT12G R0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 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:
- 5 µA @ 100 V
- Capacitance @ Vr, F:
- 20pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TS-1
- Operating Temperature - Junction:
- -55°C ~ 150°C
SFT12G R0G FAQ
1.How can I place an order for SFT12G R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SFT12G R0G 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 SFT12G R0G reliable?
The price and inventory of SFT12G R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFT12G R0G is usually 5 days.
3.What payment methods are accepted for SFT12G R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFT12G R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SFT12G R0G?
SFT12G R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SFT12G R0G 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 SFT12G R0G?
For technical support, including SFT12G R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFT12G R0G requirements.
6.How does Aetrix verify that SFT12G R0G is sourced from the original manufacturer or authorized distributors?
All SFT12G R0G 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 SFT12G R0G meets industry standards.
7.What is the process for return or replacement of SFT12G R0G?
All SFT12G R0G units undergo pre-shipment inspection (PSI). If there is an issue with SFT12G R0G, 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 SFT12G R0G part is unused and in its original packaging.
Return procedure for SFT12G R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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