My Inquiry
My Account
Taiwan Semiconductor Corporation SFAF506G C0G
- Part No.:
- SFAF506G C0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
SFAF506G C0G.pdf
- Description:
- DIODE GEN PURP 400V 5A ITO220AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,481
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SFAF506G from Taiwan Semiconductor is a 5 A, 400 V repetitive peak reverse voltage (VRRM) super fast rectifier diode in ITO-220AC package, featuring 125 A surge capability, 35 ns reverse recovery time (trr), and 1.300 V forward voltage at 5 A/25°C - used for freewheeling and switching-mode DC-DC converter output stages.
For engineers reviewing the SFAF506G datasheet, SFAF506G pinout, SFAF506G application, or SFAF506G equivalent, key selection criteria include VRRM = 400 V, trr ≤ 35 ns, VF ≤ 1.300 V @ 5 A, RθJC = 5 °C/W, and AEC-Q101 qualification availability (SFAF506GH variant).
Technical Context
This super fast rectifier employs a glass-passivated PN junction optimized for high-efficiency switching power supplies. Its 35 ns reverse recovery time and low 1.300 V forward voltage at rated current enable reduced conduction and switching losses in high-frequency SMPS topologies.
The device operates across -55°C to +150°C junction temperature range with 5 °C/W junction-to-case thermal resistance, supporting robust thermal management in compact ITO-220AC-mounted designs where heatsinking is critical for sustained 5 A average forward current handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - maximum non-repetitive reverse blocking voltage; defines safe operating limit in flyback/freewheeling clamp circuits |
| IF | 5 A - continuous average forward current at TC = 110°C; determines steady-state power stage current rating |
| IFSM | 125 A - single half-sine surge rating (8.3 ms); supports inrush and transient overload tolerance |
| trr | 35 ns - measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; enables operation up to ~3–5 MHz switching frequencies |
| VF | 1.300 V max @ 5 A, 25°C - directly impacts conduction loss (Pcond ≈ IF × VF) in high-current paths |
| RθJC | 5 °C/W - thermal resistance from junction to case; enables precise heatsink sizing for thermal derating below 110°C case temp |
| Junction Temp | -55°C to +150°C - wide operating range suitable for under-hood automotive and industrial ambient conditions |
Pinout & Package
Package: ITO-220AC - isolated tab, single-diode configuration, matte tin-plated leads compliant with J-STD-002, UL 94V-0 molding compound, 1.70 g typical weight, polarity marked on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to switch node or inductor output in freewheeling path; must withstand full system dV/dt |
| Cathode (Lead 2) | Forward current exit / reverse blocking terminal | Typically tied to output rail or ground return; carries full load current and absorbs reverse recovery charge |
| Case / Tab | Electrically isolated thermal path | Mounts to heatsink for thermal dissipation; electrically floating - no internal connection to anode or cathode |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enhances long-term reliability and moisture resistance vs. epoxy-passivated alternatives in humid environments |
| UL Recognized (E-326243) | Validates safety compliance for end-equipment certification in AC/DC and industrial power systems |
| AEC-Q101 qualification option | SFAF506GH variant meets stress-test requirements for automotive under-hood applications |
| RoHS & halogen-free | Complies with IEC 61249-2-21; supports environmentally regulated manufacturing and disposal |
| Low CJ (70 pF) | Minimizes capacitive coupling noise and EMI generation during high-dV/dt switching transitions |
Applications
| DC-DC Converter Output Rectification | Switching Mode Inverter Freewheeling |
|---|---|
Use Scenario: Secondary-side rectification in isolated 48 V–12 V buck-derived DC-DC converters delivering up to 60 W. IC Role / Device Role / Timing Role: Super fast rectifier conducting during synchronous or diode-based flyback/flyforward conduction phase. Use Value: 35 ns trr and 1.300 V VF reduce switching loss and improve efficiency >92% at 500 kHz operation. | Use Scenario: Freewheeling path in 3-phase motor drive inverters with IGBT switching at 8–20 kHz. IC Role / Device Role / Timing Role: Clamp diode providing low-loss current recirculation during IGBT turn-off. Use Value: 125 A IFSM withstands motor inductive kickback; 400 V VRRM covers bus voltage + margin in 300 V DC-link systems. |
| Automotive On-Board Charger (OBC) Auxiliary Supply | Industrial PLC Power Module Input Stage |
Use Scenario: Auxiliary 12 V supply rectification in AEC-Q101-compliant OBC modules operating at -40°C to +125°C ambient. IC Role / Device Role / Timing Role: Primary rectifier in offline flyback auxiliary converter feeding control logic and gate drivers. Use Value: SFAF506GH variant qualified per AEC-Q101 ensures reliability over 15-year vehicle lifetime under thermal cycling stress. | Use Scenario: Input rectification for 24 V industrial PLC power modules requiring continuous 5 A output with surge immunity. IC Role / Device Role / Timing Role: Bulk rectifier converting 36 VAC input to unregulated DC bus prior to regulation. Use Value: 5 °C/W RθJC allows direct mounting to metal chassis for passive cooling without forced air. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH5L06 | VRRM = 600 V, trr = 35 ns, VF = 1.7 V @ 5 A - higher blocking but higher VF | Better suited for 400–600 V bus systems; less efficient at lower voltages due to higher conduction loss | Select when system VRRM margin requires >400 V or legacy design uses STTH series footprint |
| VS-5EYH04-M3 | VRRM = 400 V, trr = 30 ns, VF = 1.25 V @ 5 A - slightly faster and lower VF | Optimized for highest-efficiency 400 V SMPS; tighter trr spec improves EMI performance | Prefer when minimizing conduction + switching loss is critical and layout accommodates Vishay's TO-220AC variant |
Compared with STTH5L06 and VS-5EYH04-M3, the SFAF506G delivers balanced performance at 400 V with proven AEC-Q101 availability (as SFAF506GH), making it optimal for cost-sensitive automotive and industrial power supplies where 1.300 V VF and 35 ns trr meet target efficiency specs.
Availability
SFAF506G is available at Aetrix Electronics and suitable for DC-DC converters, switching mode inverters, and freewheeling applications requiring stable component supply, automotive-grade variants, and consistent thermal performance across temperature extremes.
Supply support for SFAF506G 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 power electronics markets since 1979.
The SFAF506G belongs to TSC's Super Fast Rectifier family, engineered specifically for high-frequency switching power supplies demanding low VF, fast trr, and rugged thermal performance in compact ITO-220AC packages.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for the SFAF506G?
The SFAF506G has a VRRM of 400 V, as confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version I2105). This value defines the highest reverse voltage the diode can block repeatedly without breakdown and is fixed per part number - SFAF506G is the 400 V variant within the SFAF501G–SFAF508G series.
Does the SFAF506G have AEC-Q101 qualification?
The base SFAF506G is not AEC-Q101 qualified, but the SFAF506GH variant - indicated by the "H" suffix in the ordering code - is explicitly AEC-Q101 qualified per the Ordering Information section. Engineers requiring automotive-grade reliability must specify SFAF506GH; both share identical electrical and thermal specifications except for qualification status.
What is the forward voltage (VF) of the SFAF506G at rated current?
The SFAF506G exhibits a maximum forward voltage of 1.300 V at IF = 5 A and TJ = 25°C, as specified in the Electrical Specifications table. This value increases with junction temperature and is critical for calculating conduction losses in power stage design - actual VF at 125°C may reach ~1.1 V due to negative temperature coefficient.
What package type does the SFAF506G use, and is the tab electrically isolated?
The SFAF506G uses the ITO-220AC package, which features an electrically isolated metal tab. Per the Mechanical Data section, the tab serves solely as a thermal path to the heatsink and has no internal electrical connection to either anode or cathode - enabling flexible mounting without insulation hardware unless required by system safety standards.
How does the SFAF506G compare to the SFAF505G in terms of voltage rating and forward voltage?
The SFAF505G is rated for 300 V VRRM and has a maximum VF of 1.300 V at 5 A/25°C - identical VF to the SFAF506G. The key difference is blocking voltage: SFAF506G supports 400 V, offering higher margin in 350–400 V bus applications while maintaining the same speed (35 ns trr) and thermal performance (RθJC = 5 °C/W).
SFAF506G C0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-2 Full Pack
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 400 V
- Capacitance @ Vr, F:
- 70pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
SFAF506G C0G FAQ
1.How can I place an order for SFAF506G C0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SFAF506G C0G 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 SFAF506G C0G reliable?
The price and inventory of SFAF506G C0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFAF506G C0G is usually 5 days.
3.What payment methods are accepted for SFAF506G C0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFAF506G C0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SFAF506G C0G?
SFAF506G C0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SFAF506G C0G 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 SFAF506G C0G?
For technical support, including SFAF506G C0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFAF506G C0G requirements.
6.How does Aetrix verify that SFAF506G C0G is sourced from the original manufacturer or authorized distributors?
All SFAF506G C0G 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 SFAF506G C0G meets industry standards.
7.What is the process for return or replacement of SFAF506G C0G?
All SFAF506G C0G units undergo pre-shipment inspection (PSI). If there is an issue with SFAF506G C0G, 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 SFAF506G C0G part is unused and in its original packaging.
Return procedure for SFAF506G C0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SFAF506G C0G 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…
