My Inquiry
My Account
Taiwan Semiconductor Corporation SFAF1603G
- Part No.:
- SFAF1603G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
SFAF1603G.pdf
- Description:
- 35NS, 16A, 150V, SUPER FAST RECO
- Quantity:
- Payment:
- Shipping:
Inventory:4,670
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SFAF1603G from Taiwan Semiconductor is a 16A, 150V repetitive peak reverse voltage (VRRM) super fast rectifier diode in ITO-220AC package, featuring 35ns reverse recovery time (trr), 0.975V forward voltage at 16A/25°C, and 1.3°C/W junction-to-case thermal resistance-used in DC-DC converters and switching-mode inverters.
For engineers reviewing the SFAF1603G datasheet, SFAF1603G pinout, SFAF1603G application, or SFAF1603G equivalent, key selection criteria include VRRM=150V, IF=16A, trr=35ns, VF=0.975V, and ITO-220AC mechanical compatibility with heatsink mounting.
Technical Context
This single-die super fast rectifier uses glass-passivated junction technology to achieve low forward voltage and high surge current capability (IFSM=200A). Its 35ns reverse recovery time enables high-frequency switching operation in SMPS topologies without excessive switching loss.
The device operates across -55°C to +150°C junction temperature range and delivers stable performance under repetitive 8.3ms half-sine surge conditions. Thermal resistance of 1.3°C/W supports efficient heat transfer to external heatsinks via the ITO-220AC case.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 150 V - Maximum non-repetitive reverse voltage the diode blocks reliably in circuit |
| IF | 16 A - Continuous average forward current rating at case temperature ≤75°C |
| IFSM | 200 A - Peak non-repetitive surge current survivable for one 8.3ms half-sine cycle |
| trr | 35 ns - Reverse recovery time determining minimum dead-time and switching frequency limit |
| VF @ 16A, 25°C | 0.975 V - Forward voltage drop defining conduction loss and thermal load at rated current |
| RθJC | 1.3 °C/W - Junction-to-case thermal resistance enabling heatsink-based thermal management |
| CJ @ 4V, 1MHz | 130 pF - Junction capacitance affecting high-frequency noise coupling and snubber design |
Pinout & Package
Package: ITO-220AC - Insulated TO-220 variant with isolated metal tab, UL 94V-0 molding compound, matte tin-plated leads, and 0.56 N·m maximum mounting torque. Polarity marked on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to input/high-side node in freewheeling or output rectification paths |
| Cathode | Forward current exit point | Connected to ground/common return or low-side switch node |
| Case (Tab) | Electrically isolated thermal path | Provides mechanical mounting and thermal conduction to heatsink; electrically isolated per ITO-220AC construction |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable long-term reliability and moisture resistance without hermetic sealing |
| Super fast recovery (trr = 35 ns) | Reduces switching losses in 100–500 kHz SMPS designs versus standard fast rectifiers |
| Low VF (0.975 V @ 16A) | Lowers conduction loss by ~15% vs. comparable 150V rectifiers with VF > 1.1V |
| High IFSM (200 A) | Withstands inrush and transient overloads in motor drives and UPS systems |
| UL Recognized (E-326243) | Meets safety requirements for end-equipment certification in industrial and automotive power supplies |
Applications
| DC-DC Converter Output Rectification | Switching Mode Inverter Freewheeling |
|---|---|
Use Scenario: Secondary-side rectification in isolated 48V-to-12V buck-derived DC-DC converters for telecom and server PSUs. IC Role / Device Role / Timing Role: Power rectifier converting high-frequency transformer output to regulated DC bus. Use Value: 35ns trr minimizes reverse recovery loss during synchronous rectifier dead-time, improving efficiency above 200 kHz. | Use Scenario: Freewheeling path across IGBTs in 3-phase motor inverters for HVAC and industrial drives. IC Role / Device Role / Timing Role: Clamp diode providing low-loss current recirculation during IGBT turn-off. Use Value: 16A continuous rating and 200A surge capability handle motor back-EMF transients without derating. |
| Automotive On-Board Charger (OBC) PFC Stage | Industrial AC-DC Front-End Rectification |
Use Scenario: Boost diode in active PFC circuits of EV on-board chargers operating up to 150kHz. IC Role / Device Role / Timing Role: High-voltage, high-speed boost rectifier in continuous conduction mode (CCM) PFC. Use Value: 150V VRRM and 0.975V VF reduce conduction loss while maintaining margin over 120VAC peak (170V). | Use Scenario: Input bridge or output rectifier in industrial 3-phase 400VAC rectification modules. IC Role / Device Role / Timing Role: Primary power conversion element handling full line current in unregulated DC bus generation. Use Value: ITO-220AC package allows direct bolt-down heatsinking for sustained 16A operation in ambient ≤70°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1602CW | VRRM=200V, VF=0.95V @ 16A, trr=30ns, TO-247AC package | Higher voltage rating and faster recovery but larger footprint and higher cost | Select when 200V blocking margin or sub-30ns trr is required; requires PCB layout change |
| ON Semi MUR1620CT | VRRM=200V, dual common-cathode configuration, VF=0.93V @ 8A per die, trr=35ns, TO-220AB | Dual-diode topology suits center-tapped or synchronous rectifier designs; non-isolated tab | Choose for dual-channel needs or cost-sensitive TO-220AB compatibility; no electrical isolation at tab |
Compared with STTH1602CW and MUR1620CT, the SFAF1603G offers optimized 150V/16A balance in an electrically isolated ITO-220AC package-ideal for space-constrained, heatsink-mounted freewheeling and DC-DC rectification where 200V+ rating is unnecessary.
Availability
SFAF1603G is available at Aetrix Electronics and suitable for DC-DC converters, switching-mode inverters, and freewheeling applications requiring stable component supply, AEC-Q101 qualification option (SFAF1603GH), and RoHS/halogen-free compliance.
Supply support for SFAF1603G 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 SFAF1603G belongs to TSC's Super Fast Rectifier family, engineered for high-efficiency, high-reliability power conversion in switching power supplies and motor control systems where low VF, fast trr, and robust surge capability are critical.
FAQ
What is the maximum junction temperature rating for the SFAF1603G?
The SFAF1603G has a maximum junction temperature (TJ) rating of +150°C, with operational capability down to -55°C. This wide range supports use in under-hood automotive environments and high-ambient industrial enclosures. Derating curves in the datasheet define allowable average forward current versus case temperature, ensuring safe operation within this thermal envelope.
Is the SFAF1603G electrically isolated at the case terminal?
Yes, the SFAF1603G uses the ITO-220AC package, which features an electrically isolated metal tab. Unlike standard TO-220AC, the ITO variant provides galvanic isolation between the case and internal semiconductor die-critical for high-side switching configurations and floating ground designs where tab grounding would cause short circuits.
What does the 'G' suffix indicate in SFAF1603G?
The 'G' suffix in SFAF1603G denotes halogen-free packaging per IEC 61249-2-21 and RoHS compliance. It confirms the molding compound contains no brominated flame retardants or chlorine-based additives. The AEC-Q101 qualified version carries the 'H' suffix (SFAF1603GH), not 'G'-so SFAF1603G meets environmental standards but lacks automotive qualification unless explicitly ordered as GH.
How does the SFAF1603G compare to standard fast recovery diodes in switching loss?
The SFAF1603G's 35ns reverse recovery time (trr) reduces switching loss significantly compared to standard fast recovery diodes (typically 50–100ns). At 200kHz operation, this cuts reverse recovery charge (Qrr) by ~40%, lowering EMI and thermal stress in the diode and adjacent MOSFETs-making it suitable for high-frequency SMPS where efficiency and thermal headroom are constrained.
Can the SFAF1603G be used in place of a 200V-rated rectifier like SFAF1604G?
No-the SFAF1603G is rated for 150V VRRM, while SFAF1604G is rated for 200V. Substituting SFAF1603G in a 200V application risks avalanche breakdown and premature failure. Voltage selection must respect worst-case reverse transients; if system peak reverse voltage exceeds 150V, SFAF1603G is unsuitable regardless of its other parameters.
SFAF1603G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-2 Full Pack
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 150 V
- Current - Average Rectified (Io):
- 16A
- Voltage - Forward (Vf) (Max) @ If:
- 975 mV @ 16 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 150 V
- Capacitance @ Vr, F:
- 130pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
SFAF1603G FAQ
1.How can I place an order for SFAF1603G through Aetrix?
Please submit a Request for Quotation (RFQ) for SFAF1603G 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 SFAF1603G reliable?
The price and inventory of SFAF1603G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFAF1603G is usually 5 days.
3.What payment methods are accepted for SFAF1603G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFAF1603G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SFAF1603G?
SFAF1603G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SFAF1603G 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 SFAF1603G?
For technical support, including SFAF1603G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFAF1603G requirements.
6.How does Aetrix verify that SFAF1603G is sourced from the original manufacturer or authorized distributors?
All SFAF1603G 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 SFAF1603G meets industry standards.
7.What is the process for return or replacement of SFAF1603G?
All SFAF1603G units undergo pre-shipment inspection (PSI). If there is an issue with SFAF1603G, 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 SFAF1603G part is unused and in its original packaging.
Return procedure for SFAF1603G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SFAF1603G 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…
