My Inquiry
My Account
Taiwan Semiconductor Corporation SF17G R0G
- Part No.:
- SF17G R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
SF17G R0G.pdf
- Description:
- DIODE GEN PURP 500V 1A DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,441
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SF17G R0G from Taiwan Semiconductor is a 1A, 500V super fast recovery rectifier diode in DO-204AL (DO-41) package, featuring 1.70V max forward voltage at 1A/25°C, 35ns reverse recovery time, and 10pF junction capacitance - used in high-efficiency DC-DC converters and freewheeling paths in automotive-grade power supplies.
For engineers reviewing the SF17G R0G datasheet, SF17G R0G pinout, SF17G R0G application, or SF17G R0G equivalent, key selection criteria include VRRM = 500V, trr = 35ns, VF ≤ 1.70V, TJ(max) = 150°C, and AEC-Q101 qualification status - critical for switching-mode power supply reliability and thermal design validation.
Technical Context
This single-die silicon rectifier operates with ultra-fast recovery (trr ≤ 35ns) to minimize switching losses in high-frequency SMPS topologies. Its 500V repetitive peak reverse voltage (VRRM) and 30A non-repetitive surge rating (IFSM) support robust operation under transient overloads.
The device exhibits low junction-to-lead thermal resistance (RθJL = 20°C/W) and uses pure tin-plated leads compliant with J-STD-002 solderability. Polarity is marked by a cathode band, and the DO-204AL package meets UL 94V-0 flammability rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 500 V - maximum repetitive reverse blocking voltage; defines safe operating range in flyback/freewheeling circuits |
| IF | 1 A - continuous forward current rating; determines steady-state conduction capability |
| trr | 35 ns - reverse recovery time; enables efficient operation up to ~3 MHz switching frequencies |
| VF | ≤1.70 V @ 1A, 25°C - forward voltage drop; directly impacts conduction loss and thermal load |
| CJ | 10 pF @ 1MHz, 4V - junction capacitance; affects high-frequency switching noise and EMI behavior |
| RθJL | 20 °C/W - junction-to-lead thermal resistance; supports direct PCB copper pad heatsinking |
| TJ(max) | +150 °C - maximum junction temperature; allows operation in under-hood automotive environments |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, epoxy-molded case with cathode band marking. Lead finish: pure tin, J-STD-002 compliant. Weight: 0.350g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of load or switch node in freewheeling path |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to higher-potential rail or output capacitor positive in buck/flyback outputs |
Key Features
| Feature | Design Value |
|---|---|
| Super fast recovery | trr ≤ 35 ns enables high-frequency (>100 kHz) SMPS designs with reduced switching loss |
| AEC-Q101 qualified option | Available in H-suffix variants (e.g., SF17GH); validated for automotive power electronics |
| Low forward voltage | VF ≤ 1.70 V at rated current lowers I²R conduction loss and improves efficiency |
| High surge robustness | IFSM = 30 A (8.3 ms half-sine) withstands inrush and fault currents without failure |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS; suitable for green manufacturing programs |
Applications
| Automotive DC-DC Converters | Industrial SMPS Outputs |
|---|---|
Use Scenario: 12V–48V bidirectional DC-DC conversion in 48V mild-hybrid vehicle architectures. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous rectified buck-boost stages. Use Value: 35ns trr minimizes reverse recovery charge loss during high-frequency (200–500 kHz) switching, improving system efficiency by ≥1.2% vs. standard fast rectifiers. | Use Scenario: Output rectification in 200W industrial AC-DC power supplies with active PFC front-end. IC Role / Device Role / Timing Role: Secondary-side unidirectional current path in LLC resonant converter output stage. Use Value: 500V VRRM and 150°C TJ(max) ensure reliable operation under line surges and ambient temperatures up to 85°C. |
| Telecom Power Rectification | Freewheeling in Motor Drives |
Use Scenario: +48V telecom rectifier modules requiring high reliability and low EMI. IC Role / Device Role / Timing Role: Output rectifier in isolated forward converter delivering 30A at 54V. Use Value: 10pF CJ reduces high-frequency ringing and conducted emissions, easing EMC filter design. | Use Scenario: Inductive load suppression in 24V BLDC motor gate driver power rails. IC Role / Device Role / Timing Role: Clamp diode across MOSFET drain-source to absorb inductive kickback energy. Use Value: 30A IFSM rating safely handles repetitive 25A surge events during motor commutation transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06U | VRRM = 600V, trr = 30ns, VF = 1.7V @ 1A - slightly faster but same voltage class | Optimized for 600V systems; marginally better EMI performance due to lower trr | Select when 600V derating headroom or <30ns trr is required; not AEC-Q101 qualified |
| ON Semi MUR105 | VRRM = 50V, trr = 50ns, VF = 0.95V - lower voltage, slower, lower VF | Targeted at low-voltage (<100V) consumer SMPS; unsuitable for 500V bus applications | Only viable for cost-sensitive, non-automotive 50V designs; lacks surge and temperature capability of SF17G R0G |
Compared with STTH1R06U and MUR105, SF17G R0G offers optimal balance of 500V rating, 35ns recovery, AEC-Q101 availability, and thermal robustness - making it preferred for automotive and industrial 48V–400V power conversion where reliability and standardized qualification matter.
Availability
SF17G R0G is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS outputs, and telecom rectification requiring stable component supply and long-term lifecycle assurance.
Supply support for SF17G 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 automotive, industrial, and computing markets since 1979.
The SF11G–SF18G series is designed specifically for high-efficiency, high-reliability power conversion - emphasizing fast recovery, low VF, and AEC-Q101 qualification for automotive-grade rectification in demanding thermal and electrical environments.
FAQ
What is the maximum junction temperature rating for SF17G R0G?
The SF17G R0G has a maximum junction temperature (TJ(max)) of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet. This rating allows SF17G R0G to operate reliably in under-hood automotive environments and high-ambient industrial power supplies. Thermal design must maintain junction temperature below this limit using appropriate PCB copper area and airflow.
Is SF17G R0G AEC-Q101 qualified?
SF17G R0G itself is not AEC-Q101 qualified; however, the AEC-Q101 variant is designated SF17GH (H-suffix). The "R0G" suffix indicates tape-and-reel packaging (5,000 pcs) in standard grade. For automotive applications requiring qualification, specify SF17GH - which undergoes full stress testing per AEC-Q101 Rev D requirements.
What does the "R0G" suffix mean in SF17G R0G?
The "R0G" suffix in SF17G R0G denotes packaging: "R" = tape-and-reel, "0" = standard reel size (13-inch), "G" = green (halogen-free) compound. It is not a functional or grading code. This matches Taiwan Semiconductor's ordering nomenclature in the H2104 datasheet, where SF1xG R0G = DO-204AL, 5,000 pcs/reel, halogen-free.
What is the reverse recovery time (trr) specification for SF17G R0G?
The SF17G R0G has a maximum reverse recovery time (trr) of 35 ns, measured under IF = 0.5A, IR = 1.0A, and Irr = 0.25A conditions per the H2104 datasheet. This value is typical for the SF17G/SF18G group and confirms SF17G R0G's suitability for high-frequency switching applications up to 500 kHz without excessive switching loss.
Can SF17G R0G replace SF16G in an existing design?
Yes, SF17G R0G can replace SF16G in most cases: both share identical DO-204AL package, pinout, and thermal specs, but SF17G R0G offers higher VRRM (500V vs. 400V) and slightly higher VF (1.70V vs. 1.30V). Verify that the 0.4V VF increase does not exceed thermal budget, and confirm reverse voltage margin suffices - no PCB changes are needed due to identical mechanical and electrical interface.
SF17G R0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 500 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 500 V
- Capacitance @ Vr, F:
- 10pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SF17G R0G FAQ
1.How can I place an order for SF17G R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SF17G 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 SF17G R0G reliable?
The price and inventory of SF17G R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF17G R0G is usually 5 days.
3.What payment methods are accepted for SF17G R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF17G R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF17G R0G?
SF17G R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF17G 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 SF17G R0G?
For technical support, including SF17G R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF17G R0G requirements.
6.How does Aetrix verify that SF17G R0G is sourced from the original manufacturer or authorized distributors?
All SF17G 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 SF17G R0G meets industry standards.
7.What is the process for return or replacement of SF17G R0G?
All SF17G R0G units undergo pre-shipment inspection (PSI). If there is an issue with SF17G 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 SF17G R0G part is unused and in its original packaging.
Return procedure for SF17G R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SF17G 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…
