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Taiwan Semiconductor Corporation SFT12GHA1G
- Part No.:
- SFT12GHA1G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- T-18, Axial
- Datasheet:
-
SFT12GHA1G.pdf
- Description:
- DIODE GEN PURP 100V 1A TS-1
- Quantity:
- Payment:
- Shipping:
Inventory:5,427
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Product details
Overview
SFT12GHA1G 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 AEC-Q101 qualification for automotive-grade reliability. It serves as a freewheeling or output rectifier in high-frequency DC-DC converters.
For engineers reviewing the SFT12GHA1G datasheet, SFT12GHA1G pinout, SFT12GHA1G application, or SFT12GHA1G equivalent, key selection criteria include repetitive peak reverse voltage (100 V), surge current rating (30 A), thermal resistance (100 °C/W), junction temperature range (–55 to +150 °C), and AEC-Q101 compliance status.
Technical Context
This device is a single-die, planar passivated silicon super fast recovery rectifier optimized for switching-mode power supplies operating above 50 kHz. Its low Qrr and tight trr distribution support reduced switching losses and EMI control in compact converters.
The TS-1 package enables surface-mount assembly with pure tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance. Polarity is marked by a cathode band, and the molding compound meets UL 94V-0.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse blocking voltage; defines safe operating range in flyback or buck output stages |
| IF | 1 A - Continuous average forward current; sets thermal design baseline for PCB copper area and ambient conditions |
| IFSM | 30 A - Non-repetitive surge rating; supports inrush and transient overload without failure |
| trr | 35 ns - Reverse recovery time; enables efficient operation up to ~500 kHz switching frequency |
| VF @ 1A/25°C | 0.95 V - Low conduction loss; reduces power dissipation and improves efficiency vs. standard fast rectifiers |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance; informs heatsinking requirements for 1 A continuous load |
| TJ max | +150 °C - Maximum junction temperature; allows operation in under-hood automotive environments |
Pinout & Package
TS-1 package: surface-mount, 2-terminal, single-anode/cathode configuration with cathode band marking. Lead finish: pure tin, J-STD-002 compliant. Weight: ~0.200 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck, secondary winding in flyback) |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to output rail or filter capacitor positive; blocks reverse voltage up to 100 V |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements (HTOL, TC, HAST, etc.) |
| Super fast recovery (trr = 35 ns) | Minimizes reverse recovery charge (Qrr), reducing switching losses and snubber demands |
| Low VF (0.95 V @ 1 A) | Lowers conduction loss by ~15–20% versus standard fast rectifiers at same current |
| RoHS & halogen-free | Complies with IEC 61249-2-21; suitable for green manufacturing and end-of-life recycling |
| TS-1 package with JESD201 Class 2 whisker resistance | Ensures long-term solder joint integrity in thermally cycled automotive modules |
Applications
| Automotive DC-DC Converters | Industrial SMPS Output Rectification |
|---|---|
Use Scenario: 12 V to 5 V/3.3 V step-down converter in ADAS camera module or infotainment head unit. IC Role / Device Role / Timing Role: Output freewheeling rectifier replacing Schottky in cost-sensitive 100 V-class designs. Use Value: AEC-Q101 qualification ensures reliability across –40°C to +125°C ambient; 35 ns trr maintains efficiency at 300 kHz switching. | Use Scenario: Secondary-side rectifier in 24 V input industrial AC-DC adapter powering PLC I/O modules. IC Role / Device Role / Timing Role: High-reliability 100 V super fast rectifier handling 1 A continuous load with surge tolerance. Use Value: 30 A IFSM withstands repeated inrush events; TS-1 package supports automated SMT assembly and reflow profiles. |
| LED Driver Freewheeling Diode | UPS Inverter Stage Clamp |
Use Scenario: Constant-current LED driver for street lighting using buck topology with 100 V bus. IC Role / Device Role / Timing Role: Freewheeling path during MOSFET off-time; handles 1 A average and 30 A surge peaks. Use Value: Low VF reduces heat generation in enclosed luminaires; 150 °C TJ max supports high-temperature PCB layouts. | Use Scenario: Clamping diode in half-bridge inverter stage of line-interactive UPS protecting against inductive kickback. IC Role / Device Role / Timing Role: Fast-recovery clamp to suppress voltage spikes during MOSFET turn-off transitions. Use Value: 35 ns trr limits spike duration and EMI; 100 V VRRM matches typical 48 V–72 V battery-backed DC bus. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R0100S | 1 A, 100 V, trr = 45 ns, VF = 1.05 V @ 1 A, TO-277 package | No AEC-Q101 qualification; higher VF and trr increase losses in high-frequency automotive use | Preferred where cost sensitivity outweighs AEC-Q101 need and thermal margin permits higher VF |
| ON Semi MUR110EG | 1 A, 100 V, trr = 50 ns, VF = 1.0 V @ 1 A, SMA package | SMA footprint differs; no AEC-Q101; higher trr degrades efficiency >250 kHz | Acceptable for non-automotive industrial SMPS with relaxed EMI and thermal constraints |
Compared with STTH1R0100S and MUR110EG, the SFT12GHA1G delivers lower conduction and switching losses in automotive-grade 100 V rectification due to its 0.95 V VF and 35 ns trr, while its TS-1 package and AEC-Q101 certification enable drop-in use in space-constrained, high-reliability modules.
Availability
SFT12GHA1G is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS output rectification, and LED driver freewheeling applications requiring stable component supply, AEC-Q101 compliance, and consistent TS-1 packaging.
Supply support for SFT12GHA1G 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 SFT1xG series targets high-efficiency, high-reliability power conversion in automotive and industrial systems, emphasizing fast recovery, low VF, and AEC-Q101 qualification for demanding environments.
FAQ
What is the maximum junction temperature rating for SFT12GHA1G?
The SFT12GHA1G has a maximum junction temperature (TJ max) of +150 °C, enabling reliable operation in under-hood automotive environments and high-ambient industrial settings. This rating is validated per AEC-Q101 stress testing and must be maintained via proper thermal design using its 100 °C/W RθJA value. Derating curves in the SFT12GHA1G datasheet define safe IF vs. TA limits.
Is SFT12GHA1G pin-compatible with other TS-1 super fast rectifiers?
Yes, SFT12GHA1G uses the standard TS-1 package with identical mechanical dimensions and 2-terminal anode/cathode layout as all SFT1xG variants and compatible TS-1 rectifiers. The cathode band marking and lead finish (pure tin) match industry-standard TS-1 implementation, supporting direct placement in existing TS-1 footprints without layout changes.
What does the "H" suffix in SFT12GHA1G signify?
Per Taiwan Semiconductor's ordering nomenclature, the "H" in SFT12GHA1G indicates full AEC-Q101 qualification - verified across HTOL, temperature cycling, HAST, and mechanical stress tests. This distinguishes it from non-H variants (e.g., SFT12G) and confirms suitability for automotive powertrain, chassis, and body electronics applications.
How does the reverse recovery time of SFT12GHA1G compare to standard fast rectifiers?
The SFT12GHA1G has a specified trr of 35 ns, significantly faster than standard fast rectifiers (typically 100–200 ns). This enables higher switching frequencies (>300 kHz), lower switching losses, and reduced EMI in DC-DC converters. Measured under IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A per JEDEC standards, confirming its super fast classification.
What packaging options are available for SFT12GHA1G?
SFT12GHA1G is supplied in tape-and-reel format: 5,000 units per reel (ordering code SFT12GHA1G). The TS-1 package supports standard SMT pick-and-place and reflow processes. No ammo box or bulk options are designated for the "H" (AEC-Q101) variant per Taiwan Semiconductor's ordering matrix.
SFT12GHA1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Tape & Box (TB)
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TS-1
- Operating Temperature - Junction:
- -55°C ~ 150°C
SFT12GHA1G FAQ
1.How can I place an order for SFT12GHA1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SFT12GHA1G 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 SFT12GHA1G reliable?
The price and inventory of SFT12GHA1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFT12GHA1G is usually 5 days.
3.What payment methods are accepted for SFT12GHA1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFT12GHA1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SFT12GHA1G?
SFT12GHA1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SFT12GHA1G 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 SFT12GHA1G?
For technical support, including SFT12GHA1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFT12GHA1G requirements.
6.How does Aetrix verify that SFT12GHA1G is sourced from the original manufacturer or authorized distributors?
All SFT12GHA1G 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 SFT12GHA1G meets industry standards.
7.What is the process for return or replacement of SFT12GHA1G?
All SFT12GHA1G units undergo pre-shipment inspection (PSI). If there is an issue with SFT12GHA1G, 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 SFT12GHA1G part is unused and in its original packaging.
Return procedure for SFT12GHA1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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