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Taiwan Semiconductor Corporation SF14GH
- Part No.:
- SF14GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
SF14GH.pdf
- Description:
- DIODE GEN PURP 200V 1A DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,675
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Product details
Overview
SF14GH from Taiwan Semiconductor is a 200V, 1A super fast recovery rectifier diode in DO-41 package, featuring 35 ns reverse recovery time, 0.95 V forward voltage at 1 A, and AEC-Q101 qualification for automotive-grade reliability. It serves as a freewheeling or output rectifier in DC-DC converters and switching inverters operating up to 150°C junction temperature.
For engineers reviewing the SF14GH datasheet, SF14GH pinout, SF14GH application, or SF14GH equivalent, key selection criteria include its 200 V repetitive peak reverse voltage, 30 A surge current rating, low VF/low trr trade-off, thermal resistance (RθJL = 20°C/W), and AEC-Q101 qualification status for harsh-environment deployment.
Technical Context
This single-die silicon planar junction rectifier uses optimized doping and geometry to achieve super-fast switching with minimal stored charge. Its 35 ns trr and 20 pF junction capacitance at 4 V enable efficient operation in high-frequency SMPS topologies above 100 kHz.
The device operates across –55°C to +150°C junction range, with RθJA = 80°C/W and RθJL = 20°C/W enabling direct PCB trace conduction cooling in compact layouts. Pure tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - maximum repetitive reverse blocking voltage; defines safe operating limit in flyback/clamp circuits |
| IF | 1 A continuous - average forward current rating at TA = 75°C; sets baseline conduction capability |
| IFSM | 30 A - non-repetitive surge current (8.3 ms half-sine); supports inrush and fault transient handling |
| VF @ 1 A | 0.95 V - forward voltage drop at rated DC current; directly determines conduction loss (0.95 W @ 1 A) |
| trr | 35 ns - reverse recovery time under IF = 0.5 A / IR = 1.0 A / Irr = 0.25 A; enables >200 kHz switching |
| CJ @ 4 V | 20 pF - junction capacitance at 1 MHz / 4 V reverse bias; impacts snubber design and EMI filtering |
| TJ max | +150°C - maximum junction temperature; allows operation in engine bay or industrial enclosures without derating |
Pinout & Package
DO-204AL (DO-41) axial-leaded package with cathode band marking; lead finish: pure tin, J-STD-002 compliant; weight ≈ 0.350 g; UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); requires thermal relief on PCB |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to output rail or ground return; carries full load current and must route with low-inductance path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and chassis applications per stress test requirements (HTOL, TC, UHAST) |
| Super fast recovery (trr = 35 ns) | Reduces switching losses and EMI generation in high-frequency DC-DC stages compared to standard rectifiers |
| Low VF (0.95 V @ 1 A) | Minimizes conduction loss and thermal rise in space-constrained 1 A output rails |
| DO-41 package with tin leads | Enables automated through-hole assembly and ensures long-term solder joint integrity per JESD201 Class 2 |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive for environmentally regulated end equipment |
Applications
| Automotive DC-DC Converters | Industrial Switch-Mode Power Supplies |
|---|---|
Use Scenario: 12 V to 5 V/3.3 V step-down conversion in body control modules and infotainment systems. IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant buck topology. Use Value: AEC-Q101 qualification and 150°C TJ rating ensure reliable operation under hood temperature cycling and vibration stress. | Use Scenario: Secondary-side rectification in 24 V input industrial SMPS delivering 1–2 A at 5–24 V outputs. IC Role / Device Role / Timing Role: Freewheeling diode in flyback or forward converter output stage. Use Value: 35 ns trr and 0.95 V VF jointly reduce total power loss below 1.2 W, easing thermal management in sealed enclosures. |
| LED Driver Power Stages | UPS Inverter Output Stage |
Use Scenario: Constant-current LED string supply with PWM dimming in commercial lighting fixtures. IC Role / Device Role / Timing Role: High-side rectifier in boost-derived constant-current regulator. Use Value: Low CJ (20 pF) minimizes capacitive coupling noise into sensitive current-sense paths during fast switching. | Use Scenario: Bidirectional freewheeling path in 12 V/24 V battery-backed UPS inverters. IC Role / Device Role / Timing Role: Reverse-biased clamp diode during MOSFET dead-time commutation. Use Value: 30 A IFSM withstands short-circuit surges during grid-fail transitions without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R02U (STMicroelectronics) | Same 200 V VRRM, 1 A IF, but trr = 25 ns and VF = 0.92 V; DO-41, AEC-Q101 not claimed | Higher-speed alternative where tighter timing control is needed; lacks automotive qualification documentation | Select when trr < 30 ns is required and AEC-Q101 is not mandated by system-level standards |
| ES1D (ON Semiconductor) | 200 V VRRM, 1 A IF, trr = 35 ns, VF = 0.95 V; SMD SMB package, no AEC-Q101 claim | Surface-mount alternative for automated assembly; smaller footprint but higher RθJA (110°C/W vs 80°C/W) | Select for space-constrained PCBs where reflow compatibility outweighs through-hole mechanical robustness |
Compared with STTH1R02U and ES1D, the SF14GH uniquely combines AEC-Q101 qualification, DO-41 mechanical ruggedness, and balanced VF/trr performance-making it the preferred choice for automotive and industrial through-hole designs requiring certified reliability and thermal margin.
Availability
SF14GH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS, and LED driver power stages requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for SF14GH 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 automotive, industrial, and consumer markets since 1979.
The SF11G–SF18G family was designed specifically for high-efficiency, high-reliability rectification in automotive power systems and industrial switching supplies where AEC-Q101 compliance and thermal robustness are mandatory.
FAQ
What is the peak repetitive reverse voltage rating of the SF14GH?
The SF14GH has a peak repetitive reverse voltage (VRRM) rating of 200 V. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version H2104), where SF14G is explicitly listed under the 200 V column. It defines the maximum reverse-bias voltage the SF14GH can block continuously without breakdown under normal operating conditions.
Is the SF14GH qualified to AEC-Q101 standards?
Yes, the SF14GH is AEC-Q101 qualified. The "H" suffix in the ordering code denotes AEC-Q101 qualification, and this is explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet (Version H2104). The qualification covers stress tests including high-temperature operating life (HTOL), temperature cycling (TC), and unbiased highly accelerated stress test (UHAST).
What is the forward voltage drop of the SF14GH at 1 A and 25°C?
The forward voltage drop (VF) of the SF14GH is 0.95 V at IF = 1 A and TJ = 25°C, as specified in the Electrical Specifications table under the SF14G row. This value is measured using a pulse test with PW = 0.3 ms and represents the typical conduction loss under nominal DC load conditions for the SF14GH.
What is the reverse recovery time (trr) specification for the SF14GH?
The reverse recovery time (trr) of the SF14GH is 35 ns maximum, tested under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This parameter is documented in the Electrical Specifications table of the Taiwan Semiconductor datasheet (Version H2104) and confirms the SF14GH's suitability for high-frequency switching applications up to several hundred kHz.
Which package type does the SF14GH use, and what are its key mechanical properties?
The SF14GH uses the DO-204AL (DO-41) axial-leaded package. Key mechanical properties include pure tin-plated leads compliant with J-STD-002, UL 94V-0 flammability-rated molding compound, cathode polarity indicated by a band, and a typical weight of 0.350 g. These attributes are detailed in the MECHANICAL DATA section of the official datasheet.
SF14GH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- 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:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- 20pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SF14GH FAQ
1.How can I place an order for SF14GH through Aetrix?
Please submit a Request for Quotation (RFQ) for SF14GH 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 SF14GH reliable?
The price and inventory of SF14GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF14GH is usually 5 days.
3.What payment methods are accepted for SF14GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF14GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF14GH?
SF14GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF14GH 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 SF14GH?
For technical support, including SF14GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF14GH requirements.
6.How does Aetrix verify that SF14GH is sourced from the original manufacturer or authorized distributors?
All SF14GH 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 SF14GH meets industry standards.
7.What is the process for return or replacement of SF14GH?
All SF14GH units undergo pre-shipment inspection (PSI). If there is an issue with SF14GH, 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 SF14GH part is unused and in its original packaging.
Return procedure for SF14GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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