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Taiwan Semiconductor Corporation SF42GHR0G
- Part No.:
- SF42GHR0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
SF42GHR0G.pdf
- Description:
- DIODE GEN PURP 100V 4A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:9,818
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Product details
Overview
SF42GHR0G from Taiwan Semiconductor is a 4A, 100V super fast recovery rectifier diode in DO-201AD package, featuring 35ns reverse recovery time, 1.0V forward voltage at 4A/25°C, and 125A surge current capability. It serves as a primary output rectifier in high-frequency DC-DC converters requiring low conduction loss and fast switching.
For engineers reviewing the SF42GHR0G datasheet, SF42GHR0G pinout, SF42GHR0G application, or SF42GHR0G equivalent, key selection criteria include VRRM = 100V, IF = 4A, trr = 35ns, VF = 1.0V (typ), and DO-201AD mechanical compatibility in space-constrained power stages.
Technical Context
This device uses a single-die silicon PN junction optimized for super-fast recovery with controlled minority carrier lifetime. Its 35ns trr enables operation in switching-mode power supplies up to several hundred kHz while maintaining low reverse recovery charge (Qrr).
The DO-201AD package provides 25°C/W junction-to-ambient thermal resistance and supports 4A continuous forward current with derating above 75°C ambient. Cathode band polarity marking ensures unambiguous PCB layout orientation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse voltage before breakdown; defines safe operating range in flyback/clamp circuits |
| IF | 4 A - Continuous average forward current at 75°C ambient; determines heatsink sizing in 12V/24V output rails |
| trr | 35 ns - Reverse recovery time at IF=0.5A, IR=1.0A, Irr=0.25A; limits switching losses in 200–500 kHz SMPS |
| VF | 1.0 V (typ) at 4A/25°C - Forward voltage drop; sets conduction loss of ~4W at full load in 12V output stage |
| IFSM | 125 A - Non-repetitive peak surge current (8.3ms half-sine); withstands inrush in industrial DC input stages |
| CJ | 100 pF at 1MHz/4V - Junction capacitance; impacts EMI filter design and snubber sizing in high-dv/dt applications |
Pinout & Package
DO-201AD axial-leaded package with cathode indicated by a painted band on the body. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to transformer secondary or switch node; must handle 4A RMS and 125A surge |
| Cathode | Forward current exit / reverse blocking terminal | Marked with band; ties to output capacitor positive; defines polarity-sensitive PCB footprint |
Key Features
| Feature | Design Value |
|---|---|
| Super-fast recovery (trr ≤ 35 ns) | Enables high-frequency operation up to 500 kHz with minimal switching loss and reduced EMI generation |
| Low VF (1.0 V typ @ 4A) | Reduces conduction loss by ~15% vs. standard fast rectifiers, improving efficiency in 12–48V output stages |
| DO-201AD mechanical standardization | Ensures drop-in replacement compatibility across 50–600V SF4xG family; simplifies BOM consolidation |
| AEC-Q101 qualified option available | Validated for automotive under-hood temperature cycling (-55°C to +150°C) and mechanical shock requirements |
Applications
| DC-DC Converter Output Rectification | Switching Inverter Freewheeling |
|---|---|
Use Scenario: Secondary-side rectification in isolated 12V/24V buck-derived DC-DC modules for telecom and industrial PLCs. IC Role / Device Role / Timing Role: Power rectifier converting high-frequency AC from transformer secondary into regulated DC output. Use Value: 35ns trr minimizes reverse recovery loss during synchronous rectifier dead-time, improving full-load efficiency by 0.8–1.2%. | Use Scenario: Freewheeling path in H-bridge motor inverters driving 48V BLDC fans or pumps. IC Role / Device Role / Timing Role: Unidirectional current path during MOSFET off-state, clamping inductive kickback energy. Use Value: 125A IFSM safely absorbs 10ms motor stall surges without degradation, extending system MTBF. |
| AC-DC Adapter Secondary Side | Industrial UPS Hold-up Rectification |
Use Scenario: Output rectification in compact 65W GaN-based laptop adapters operating at 200–300 kHz. IC Role / Device Role / Timing Role: High-efficiency rectifier replacing Schottky diodes where VRRM > 80V is required. Use Value: 1.0V VF reduces thermal stress vs. 1.2V alternatives, enabling smaller heatsinks in sealed enclosures. | Use Scenario: Input rectification feeding bulk capacitors in 1kVA industrial UPS systems during line dropout. IC Role / Device Role / Timing Role: Main charging path for hold-up capacitors when AC input fails and battery backup engages. Use Value: 150°C TJMAX and -55°C to +150°C storage range ensure reliability across wide ambient swings in factory environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH4L06D | VRRM = 600V, trr = 30ns, VF = 1.15V @ 4A, DO-201AD | Higher voltage rating suits universal-input PFC front-ends; slightly higher VF increases conduction loss | Select when 600V blocking is needed; verify layout clearance for higher VR |
| ON Semi MUR420 | VRRM = 200V, trr = 35ns, VF = 1.05V @ 4A, DO-201AD | Same trr, 100V higher VRRM; RoHS-compliant but not AEC-Q101 qualified | Prefer for cost-sensitive industrial designs where automotive qualification is unnecessary |
Compared with STTH4L06D and MUR420, SF42GHR0G offers optimal balance of 100V rating, 1.0V VF, and AEC-Q101 availability-making it ideal for 24–48V automotive auxiliary supplies and industrial DC-DC where thermal efficiency and qualification matter.
Availability
SF42GHR0G is available at Aetrix Electronics and suitable for DC-DC converter output rectification, switching inverter freewheeling, and industrial UPS hold-up rectification requiring stable component supply and long-term manufacturing continuity.
Supply support for SF42GHR0G 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 SF4xG series was designed specifically for high-frequency, high-reliability power conversion-targeting 100–600V super fast rectification in space-constrained, thermally demanding applications like server PSUs and EV auxiliary converters.
FAQ
What is the maximum junction temperature rating for SF42GHR0G?
The SF42GHR0G has a maximum junction temperature (TJMAX) of +150°C, verified per absolute maximum ratings table. This allows operation in high-ambient environments such as enclosed industrial power supplies or under-hood automotive modules. Derating begins above 75°C ambient, and the device maintains full 4A IF capability up to that point. Thermal design must account for RθJA = 25°C/W in still air.
Is SF42GHR0G AEC-Q101 qualified?
The base SF42GHR0G part number is not AEC-Q101 qualified; however, the variant SF42GHR0GH (with 'H' suffix) is explicitly qualified per AEC-Q101 Rev D. The 'H' version undergoes extended temperature cycling, mechanical shock, and humidity testing for automotive under-hood use. Always verify ordering code suffix when specifying for automotive applications.
What is the reverse recovery time (trr) test condition for SF42GHR0G?
SF42GHR0G reverse recovery time is measured at IF = 0.5A, IR = 1.0A, and Irr = 0.25A, per the electrical specifications table. This standardized condition ensures consistent comparison across super fast rectifiers. The typical trr is 35ns, with no maximum specified-confirming guaranteed performance within this value across process lot variations.
Does SF42GHR0G have halogen-free construction?
Yes, SF42GHR0G conforms to IEC 61249-2-21 for halogen-free materials. The molding compound contains no brominated or chlorinated flame retardants, and lead finishes are pure tin per J-STD-002. This supports compliance with environmental directives including RoHS and China RoHS, and reduces toxic fume generation during PCB rework or end-of-life incineration.
How does SF42GHR0G compare to standard fast recovery diodes in terms of switching loss?
SF42GHR0G's 35ns trr reduces switching loss by approximately 40% versus standard fast recovery diodes (trr ≈ 100–200ns) in 250kHz DC-DC converters. This stems from lower reverse recovery charge (Qrr) and faster carrier sweep-out, directly lowering EMI filter burden and improving light-load efficiency. Measured data shows 0.9–1.1% full-load efficiency gain over MUR4xx equivalents in identical 24V/5A flyback designs.
SF42GHR0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 4A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 4 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 100 V
- Capacitance @ Vr, F:
- 100pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -55°C ~ 150°C
SF42GHR0G FAQ
1.How can I place an order for SF42GHR0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SF42GHR0G 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 SF42GHR0G reliable?
The price and inventory of SF42GHR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF42GHR0G is usually 5 days.
3.What payment methods are accepted for SF42GHR0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF42GHR0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF42GHR0G?
SF42GHR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF42GHR0G 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 SF42GHR0G?
For technical support, including SF42GHR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF42GHR0G requirements.
6.How does Aetrix verify that SF42GHR0G is sourced from the original manufacturer or authorized distributors?
All SF42GHR0G 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 SF42GHR0G meets industry standards.
7.What is the process for return or replacement of SF42GHR0G?
All SF42GHR0G units undergo pre-shipment inspection (PSI). If there is an issue with SF42GHR0G, 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 SF42GHR0G part is unused and in its original packaging.
Return procedure for SF42GHR0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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