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Taiwan Semiconductor Corporation SF24GH
- Part No.:
- SF24GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SF24GH.pdf
- Description:
- DIODE GEN PURP 200V 2A DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,500
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Product details
Overview
SF24GH from Taiwan Semiconductor is a 2 A, 200 V super fast recovery rectifier diode in DO-204AC (DO-15) package, featuring 35 ns reverse recovery time, 0.95 V forward voltage at 2 A and 25°C, and AEC-Q101 qualification for automotive-grade reliability. It serves as a primary output rectifier in high-frequency DC-DC converters.
For engineers reviewing the SF24GH datasheet, SF24GH pinout, SF24GH application, or SF24GH equivalent, key selection criteria include its 200 V repetitive peak reverse voltage, 50 A surge capability, glass-passivated junction, RoHS/halogen-free compliance, and suitability for freewheeling and switching-mode power supply designs.
Technical Context
This super fast rectifier employs a single-die silicon PN junction with glass passivation to ensure stable operation under high dv/dt and thermal stress. Its 35 ns trr and low 0.95 V VF enable high-efficiency operation in 100–500 kHz SMPS topologies.
The device operates across –55°C to +150°C junction temperature range, supported by 65°C/W junction-to-ambient thermal resistance and pure tin-plated leads compliant with J-STD-002 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - blocks up to 200 V repetitive reverse voltage without breakdown |
| IF | 2 A - continuous average forward current rating at TA = 75°C |
| IFSM | 50 A - withstands 8.3 ms half-sine surge, critical for inrush and fault tolerance |
| trr | 35 ns - enables efficient high-frequency switching with minimal switching loss |
| VF @ 2A, 25°C | 0.95 V - low conduction loss improves converter efficiency and reduces heatsink demand |
| CJ @ 1 MHz, 4V | 40 pF - low junction capacitance minimizes capacitive coupling and EMI in fast-switching nodes |
| TJ max | +150°C - supports operation in under-hood automotive and industrial ambient environments |
Pinout & Package
Package: DO-204AC (DO-15), axial leaded, epoxy-molded case with cathode band polarity marking. Weight: 0.400 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to lower-potential side of load or switch node; requires thermal relief on PCB for 2 A continuous handling |
| Cathode (Lead 2, banded end) | Forward current exit / reverse blocking terminal | Connected to output rail or positive bus; cathode band must align with PCB silkscreen polarity indicator |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS power supplies |
| Glass passivated junction | Enhances moisture resistance and long-term reliability under thermal cycling and humidity exposure |
| Low VF (0.95 V @ 2 A) | Reduces conduction losses by ~15% vs. standard fast rectifiers, lowering thermal design burden |
| High IFSM (50 A) | Survives transient overloads in boost PFC and flyback startup without degradation |
| RoHS & halogen-free | Meets IEC 61249-2-21 and global environmental compliance requirements for industrial and automotive shipments |
Applications
| Automotive DC-DC Converters | Industrial Switch-Mode Power Supplies |
|---|---|
Use Scenario: 12 V to 5 V/3.3 V buck converter in body control module with 250 kHz switching frequency. IC Role / Device Role / Timing Role: Output rectifier handling continuous 2 A load with fast transient response. Use Value: 35 ns trr and 0.95 V VF minimize switching and conduction losses, enabling >92% efficiency at full load. | Use Scenario: Secondary-side rectification in 48 V input telecom power supply operating at 300 kHz. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous rectifier-assisted topology. Use Value: Low 40 pF capacitance prevents shoot-through risk during gate drive transitions. |
| LED Driver Power Stages | Consumer AC-DC Adapters |
Use Scenario: Constant-current LED driver with active PFC front-end and quasi-resonant flyback stage. IC Role / Device Role / Timing Role: Primary output rectifier delivering 1.5 A to LED string. Use Value: AEC-Q101 qualification ensures robustness against line surges and thermal stress in outdoor lighting. | Use Scenario: 19 V, 3 A laptop adapter using discrete secondary-side rectification. IC Role / Device Role / Timing Role: Fast-recovery rectifier replacing slower 1N5822 in cost-optimized design. Use Value: 200 V VRRM provides 2× safety margin over 100 V reflected output voltage, improving field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R02 | Same 2 A / 200 V rating; trr = 30 ns (slightly faster); VF = 0.92 V; TO-220AC package | Requires PCB footprint change and heatsinking due to larger package; higher thermal mass | Preferred where board space allows and lower VF/trr justifies layout revision |
| ES2D | 2 A / 200 V; trr = 35 ns; VF = 0.93 V; same DO-15 package; no AEC-Q101 qualification | Lacks automotive qualification; not recommended for under-hood or safety-critical systems | Select when AEC-Q101 is not required and cost sensitivity outweighs qualification needs |
Compared with STTH2R02 and ES2D, SF24GH uniquely combines AEC-Q101 qualification, DO-15 footprint compatibility, and verified 35 ns trr performance-making it optimal for space-constrained automotive and industrial power supplies requiring zero-layout-change upgrades.
Availability
SF24GH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switch-mode power supplies, and LED driver power stages requiring stable component supply and long-term lifecycle support.
Supply support for SF24GH 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 SF2xG series was developed specifically for high-reliability, high-frequency rectification in automotive power modules and industrial SMPS, emphasizing AEC-Q101 compliance, thermal robustness, and consistent fast-recovery performance across voltage grades.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) rating for SF24GH?
The SF24GH has a VRRM rating of 200 V, meaning it can reliably block up to 200 V of reverse voltage in repetitive operation without breakdown. This value is confirmed in the Absolute Maximum Ratings table of the official TSC datasheet (Version H2105) and is fixed per the "24" in the part number, indicating the 200 V grade within the SF2xG family.
Is SF24GH qualified for automotive applications?
Yes, SF24GH is explicitly AEC-Q101 qualified, as indicated by the "H" suffix in the ordering code. This qualification covers stress testing for temperature cycling, humidity bias, mechanical shock, and other automotive-grade reliability requirements-making SF24GH suitable for use in engine control units, body electronics, and ADAS power supplies.
What is the forward voltage drop (VF) of SF24GH at rated current?
The SF24GH exhibits a typical forward voltage drop of 0.95 V at 2 A and 25°C junction temperature, as specified in the Electrical Specifications table. This low VF contributes directly to reduced conduction losses and improved thermal performance in high-duty-cycle applications such as DC-DC output rectification.
Does SF24GH have the same package and pinout as SF23F or SF25G?
Yes, SF24GH uses the DO-204AC (DO-15) package with axial leads and cathode-band polarity marking-identical to all SF2xG variants including SF23F and SF25G. The pinout is strictly two-terminal (anode/cathode), with no functional difference in terminal assignment across the family.
What is the reverse recovery time (trr) specification for SF24GH?
The SF24GH has a maximum reverse recovery time of 35 ns under test conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value is documented in the Electrical Specifications section and applies specifically to SF21G–SF24G devices, distinguishing them from higher-voltage variants which share the same trr limit.
SF24GH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AC, DO-15, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- 40pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SF24GH FAQ
1.How can I place an order for SF24GH through Aetrix?
Please submit a Request for Quotation (RFQ) for SF24GH 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 SF24GH reliable?
The price and inventory of SF24GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF24GH is usually 5 days.
3.What payment methods are accepted for SF24GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF24GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF24GH?
SF24GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF24GH 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 SF24GH?
For technical support, including SF24GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF24GH requirements.
6.How does Aetrix verify that SF24GH is sourced from the original manufacturer or authorized distributors?
All SF24GH 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 SF24GH meets industry standards.
7.What is the process for return or replacement of SF24GH?
All SF24GH units undergo pre-shipment inspection (PSI). If there is an issue with SF24GH, 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 SF24GH part is unused and in its original packaging.
Return procedure for SF24GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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