My Inquiry
My Account
Taiwan Semiconductor Corporation SF27G R0G
- Part No.:
- SF27G R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SF27G R0G.pdf
- Description:
- DIODE GEN PURP 500V 2A DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,352
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SF27G R0G from Taiwan Semiconductor is a 500 V, 2 A super fast recovery rectifier diode in DO-204AC (DO-15) package, featuring 35 ns reverse recovery time, 1.70 V forward voltage at 2 A and 25°C, and 5 µA reverse leakage at rated VR and 25°C. It serves as a freewheeling or output rectifier in high-frequency switching power supplies.
For engineers reviewing the SF27G R0G datasheet, SF27G R0G pinout, SF27G R0G application, or SF27G R0G equivalent, key selection criteria include repetitive peak reverse voltage (500 V), surge current rating (50 A), thermal resistance (65°C/W junction-to-ambient), and AEC-Q101 qualification status for automotive-grade reliability validation.
Technical Context
The SF27G R0G employs a glass-passivated single-die silicon junction optimized for high-efficiency DC/DC conversion. Its 35 ns trr and low VF enable reduced switching losses in 100–500 kHz SMPS topologies, while the 500 V VRRM supports 380 V AC input bridge configurations with margin.
Thermal performance is defined by RθJA = 65°C/W and RθJC = 16°C/W, enabling 2 A continuous conduction in standard PCB layouts without forced airflow. The device operates across –55°C to +150°C junction temperature range and meets JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 500 V - Supports 380 V AC input rectification with 31% safety margin |
| IF | 2 A - Continuous forward current rating at TA = 75°C on FR-4 PCB |
| IFSM | 50 A - Withstands 8.3 ms half-sine surge per IEC 61000-4-5 level 4 |
| VF @ 2 A, 25°C | 1.70 V - Directly determines conduction loss: 3.4 W dissipation at full load |
| trr | 35 ns - Enables operation up to 500 kHz with minimal switching loss penalty |
| CJ @ 4 V | 20 pF - Limits capacitive coupling noise in high dv/dt gate-drive isolation paths |
| RθJA | 65°C/W - Requires ≤ 5.2 cm² copper pour for 2 A operation at 75°C ambient |
Pinout & Package
DO-204AC (DO-15) molded plastic package with axial leads; cathode indicated by band; pure tin-plated leads compliant with J-STD-002 solderability; weight ≈ 0.400 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for forward conduction path | Connected to switch node or transformer secondary in flyback/forward converters |
| Cathode | Output terminal for forward conduction path | Connected to output capacitor or LC filter input; polarity band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable long-term reliability under humidity and thermal cycling stress |
| AEC-Q101 qualified option available | Validated for automotive under-hood applications requiring extended temperature and vibration robustness |
| RoHS & halogen-free compliance | Meets IEC 61249-2-21 and EU Directive 2011/65/EU for green manufacturing |
| UL 94V-0 molding compound | Prevents flame propagation in enclosed power modules during fault conditions |
| JESD201 Class 2 whisker resistance | Eliminates tin whisker growth risk in high-reliability industrial control systems |
Applications
| DC/DC Converter Output Rectification | Automotive On-Board Charger (OBC) Auxiliary Supply |
|---|---|
Use Scenario: Secondary-side rectification in 300–500 kHz isolated flyback converter delivering 12 V/2 A to control logic. IC Role / Device Role / Timing Role: Freewheeling diode conducting during MOSFET off-time; defines output voltage ripple and efficiency. Use Value: 35 ns trr minimizes reverse recovery charge loss; 1.70 V VF limits conduction loss to 3.4 W at full load. | Use Scenario: Auxiliary 12 V supply generation from 400 V battery bus in EV OBC using unregulated flyback stage. IC Role / Device Role / Timing Role: High-voltage output rectifier handling 500 V reverse stress and transient surges during battery disconnect events. Use Value: 500 V VRRM provides 20% margin over 400 V nominal bus; AEC-Q101-qualified variants support ASIL-B functional safety requirements. |
| Industrial Motor Drive Snubber Network | LED Driver Secondary-Side Rectification |
Use Scenario: Clamp diode in IGBT snubber circuit absorbing turn-off energy in 20 kHz variable frequency drives. IC Role / Device Role / Timing Role: Fast recovery path for stored inductive energy; must block 600 V transients and recover before next switching cycle. Use Value: 35 ns trr ensures full recovery within 50 ns window at 20 kHz; 50 A IFSM withstands repeated 100 A surge events. | Use Scenario: Output rectifier in 100 kHz quasi-resonant LED driver powering 24 V/1.5 A streetlight module. IC Role / Device Role / Timing Role: Primary power conversion element defining system efficiency and thermal rise in sealed luminaire housing. Use Value: 65°C/W RθJA allows 2 A operation with <15°C rise on 4 cm² copper; 20 pF CJ reduces EMI filter component count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R06 | 600 V VRRM, 1.85 V VF @ 2 A, 50 ns trr, TO-220AC package | Higher voltage margin but slower recovery; requires heatsink above 1.2 A | Select when >550 V blocking is required and board space permits TO-220 footprint |
| ON Semi MUR260 | 600 V VRRM, 1.75 V VF @ 2 A, 35 ns trr, DO-204AC package | Same package and trr; 0.05 V higher VF increases conduction loss by 0.1 W at 2 A | Drop-in replacement where 500 V rating is sufficient and cost sensitivity favors ON Semi sourcing |
Compared with STTH2R06 and MUR260, the SF27G R0G delivers optimal balance of 500 V rating, 35 ns recovery, and DO-204AC form factor-enabling compact, thermally efficient designs without heatsink dependency below 2 A.
Availability
SF27G R0G is available at Aetrix Electronics and suitable for DC/DC converters, automotive auxiliary power supplies, industrial motor drive snubbers, and LED driver secondary-side rectification requiring stable component supply and AEC-Q101-qualified traceability.
Supply support for SF27G 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 global industrial, automotive, and consumer markets since 1979.
The SF27G R0G belongs to TSC's SF2xG super fast rectifier family, engineered specifically for high-frequency switching power conversion where low trr, controlled VF, and robust thermal performance are critical to system efficiency and reliability.
FAQ
What is the maximum junction temperature rating for SF27G R0G?
The SF27G R0G has a maximum junction temperature (TJ MAX) of +150°C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet Version H2105. This rating applies under continuous operation with proper PCB thermal design and allows reliable use in under-hood automotive environments and enclosed industrial enclosures where ambient temperatures reach 85°C.
Is SF27G R0G RoHS and halogen-free compliant?
Yes, SF27G R0G is RoHS compliant and halogen-free in accordance with IEC 61249-2-21. The device uses molding compound and lead finish that meet both regulatory standards, as confirmed in the "Features" and "Mechanical Data" sections of the Taiwan Semiconductor SF21G–SF28G datasheet (Version H2105).
Does SF27G R0G have AEC-Q101 qualification?
The base SF27G R0G part is not AEC-Q101 qualified; however, the AEC-Q101 variant is designated SF27GH (with "H" suffix). Per Taiwan Semiconductor's ordering information table, only SF27GH and SF27GHA0G carry AEC-Q101 certification-SF27G R0G refers to the standard industrial-grade version.
What is the reverse recovery time (trr) specification for SF27G R0G?
The SF27G R0G has a maximum reverse recovery time (trr) of 35 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A conditions per the Electrical Specifications table in the Taiwan Semiconductor datasheet. This value is shared across SF27G and SF28G variants and enables efficient operation in 200–500 kHz switching applications.
What package type does SF27G R0G use, and what are its key mechanical attributes?
SF27G R0G uses the DO-204AC (DO-15) axial-leaded package. Key mechanical attributes include UL 94V-0 flammability-rated molding compound, pure tin-plated leads compliant with J-STD-002, cathode polarity indicated by band, and approximate weight of 0.400 g-fully documented in the "Mechanical Data" section of the Taiwan Semiconductor SF21G–SF28G datasheet.
SF27G R0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AC, DO-15, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 500 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 500 V
- Capacitance @ Vr, F:
- 20pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SF27G R0G FAQ
1.How can I place an order for SF27G R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SF27G 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 SF27G R0G reliable?
The price and inventory of SF27G R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF27G R0G is usually 5 days.
3.What payment methods are accepted for SF27G R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF27G R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF27G R0G?
SF27G R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF27G 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 SF27G R0G?
For technical support, including SF27G R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF27G R0G requirements.
6.How does Aetrix verify that SF27G R0G is sourced from the original manufacturer or authorized distributors?
All SF27G 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 SF27G R0G meets industry standards.
7.What is the process for return or replacement of SF27G R0G?
All SF27G R0G units undergo pre-shipment inspection (PSI). If there is an issue with SF27G 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 SF27G R0G part is unused and in its original packaging.
Return procedure for SF27G R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SF27G R0G Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
