My Inquiry
My Account
Taiwan Semiconductor Corporation SFAF1605G
- Part No.:
- SFAF1605G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
SFAF1605G.pdf
- Description:
- 35NS, 16A, 300V, SUPER FAST RECO
- Quantity:
- Payment:
- Shipping:
Inventory:4,816
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SFAF1605G from Taiwan Semiconductor is a 16A, 500V repetitive peak reverse voltage super fast rectifier diode in ITO-220AC package, featuring 1.300V max forward voltage at 16A/25°C, 35ns reverse recovery time, and 100pF junction capacitance - deployed in high-frequency switching mode power supplies for freewheeling and output rectification.
For engineers reviewing the SFAF1605G datasheet, SFAF1605G pinout, SFAF1605G application, or SFAF1605G equivalent, key selection criteria include VRRM = 500V, IFSM = 200A, TJ(max) = 150°C, RθJC = 1.3°C/W, and AEC-Q101 qualification availability (SFAF1605GH variant), critical for automotive-grade DC-DC and inverter designs requiring robust surge handling and thermal performance.
Technical Context
This super fast rectifier uses a glass-passivated silicon die optimized for low conduction loss and rapid carrier recombination. Its 35ns trr and 100pF CJ enable operation in 100–500 kHz switching converters without excessive switching loss or EMI generation.
The ITO-220AC package provides direct case-to-heatsink thermal path with 1.3°C/W junction-to-case resistance, supporting continuous 16A conduction at ≤85°C case temperature. Polarity is marked on the device body, and terminals are matte tin-plated per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 500 V - Maximum non-repetitive reverse blocking voltage; defines usable input/output voltage range in DC-DC and inverter stages |
| IF | 16 A - Continuous average forward current rating; sets minimum heatsink sizing for sustained load conditions |
| IFSM | 200 A - Peak non-repetitive surge current (8.3ms half-sine); determines survivability during line transients or startup inrush |
| VF (max) | 1.300 V @ 16A, 25°C - Forward voltage drop directly impacts conduction loss (Pcond ≈ IF × VF) and thermal design margin |
| trr | 35 ns - Reverse recovery time; limits maximum practical switching frequency and reduces turn-off switching loss |
| CJ | 100 pF @ 1MHz, 4V - Junction capacitance affects high-frequency noise coupling and snubber design in hard-switched topologies |
| RθJC | 1.3 °C/W - Thermal resistance from junction to case; enables accurate junction temperature estimation using measured case temperature |
Pinout & Package
ITO-220AC package: single-ended, 3-terminal outline with isolated tab (cathode-connected), matte tin-plated leads, UL 94V-0 molding compound, 1.70g mass, and 0.56 N·m max mounting torque.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to lower-potential side of circuit (e.g., switch node in buck converter); requires PCB trace width sufficient for 16A RMS |
| Cathode (Tab + Lead 2) | Forward current exit / heat transfer surface | Electrically and thermally connected to heatsink; must be insulated if heatsink is grounded; polarity marked on device body |
| NC / Isolation | No internal connection | Lead 3 is mechanically present but not bonded; serves structural support only - no electrical function |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable long-term reliability under humidity and thermal cycling; eliminates need for conformal coating in industrial environments |
| UL Recognized (E-326243) | Validates flammability (UL 94V-0), creepage, and construction compliance for end-equipment safety certification |
| AEC-Q101 qualified option (SFAF1605GH) | Supports automotive under-hood applications requiring stress-tested components with defined failure modes and lifetime validation |
| Low VF & high IFSM synergy | Combines low conduction loss (1.3V @ 16A) with 200A surge capability - reduces need for parallel devices in high-peak-current SMPS |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth on matte tin leads, eliminating latent short-circuit risk in high-reliability or long-life deployments |
Applications
| DC-DC Converter Output Rectification | Switching Inverter Freewheeling |
|---|---|
Use Scenario: Secondary-side synchronous or diode rectification in isolated 48V–400V output DC-DC converters operating at 200–500 kHz. IC Role / Device Role / Timing Role: Unidirectional current conduction path with minimal reverse recovery loss during high-frequency switching transitions. Use Value: 35ns trr and 100pF CJ reduce switching node ringing and EMI, while 1.300V VF maintains >94% efficiency at full 16A load. | Use Scenario: Freewheeling path across inductive loads (e.g., motor windings, solenoids) in half-bridge or full-bridge inverters. IC Role / Device Role / Timing Role: Provides low-loss return path during switch off-time; handles bidirectional current surges during PWM dead-time. Use Value: 200A IFSM withstands repetitive inductive kickback events; 150°C TJ(max) supports operation in sealed enclosures up to 85°C ambient. |
| Automotive On-Board Charger (OBC) | Industrial AC-DC Front-End |
Use Scenario: Boost PFC and isolated DC-DC stages in AEC-Q101-compliant 3.3–22 kW OBC modules. IC Role / Device Role / Timing Role: High-voltage output rectifier in LLC resonant converter secondary; operates under wide temperature (-40°C to +125°C case). Use Value: SFAF1605GH variant meets AEC-Q101 stress requirements; 500V VRRM accommodates 400V DC bus with 25% margin for ripple and transients. | Use Scenario: Primary-side clamp and secondary-side rectification in 3kW+ industrial AC-DC power supplies with active PFC and phase-shifted full-bridge topology. IC Role / Device Role / Timing Role: Handles high dv/dt and repetitive surge currents in high-power, forced-air-cooled systems. Use Value: 1.3°C/W RθJC enables direct-mount heatsinking; UL recognition simplifies IEC 62368-1 system certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1605DI (STMicroelectronics) | Same VRRM (500V), IF (16A), trr (35ns), but TO-220AC package with different lead form and RθJC = 1.5°C/W | Requires mechanical redesign for heatsink interface; slightly higher thermal resistance demands larger heatsink area | Preferred where ST ecosystem alignment or dual-sourcing is required; verify mounting hole pattern compatibility |
| IXYS MUR1650CT (Littelfuse) | 500V VRRM, 16A IF, but dual-die common-cathode configuration in TO-220AB; trr = 35ns, VF = 1.25V typ | Not pin-compatible; intended for center-tap transformer rectification, not single-diode freewheeling | Use only when dual-output or symmetrical rectification is needed; not a drop-in replacement for SFAF1605G |
Compared with STTH1605DI and MUR1650CT, the SFAF1605G offers superior thermal resistance (1.3°C/W vs. 1.5°C/W) and single-diode simplicity for unidirectional freewheeling, while maintaining identical electrical timing and voltage ratings - making it optimal for space-constrained, thermally demanding single-switch topologies.
Availability
SFAF1605G is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, automotive on-board chargers, and industrial AC-DC front-ends requiring stable component supply, AEC-Q101 qualification readiness, and consistent thermal performance across production volumes.
Supply support for SFAF1605G 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, specializing in power rectifiers, TVS diodes, MOSFETs, and LED drivers since 1979.
The SFAF160xG series was developed to deliver high-reliability, high-speed rectification for next-generation switching power supplies targeting automotive, industrial, and renewable energy applications - emphasizing low VF, fast trr, and robust surge capability in standardized packages.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for SFAF1605G?
The SFAF1605G has a VRRM rating of 500 V, confirmed in the Absolute Maximum Ratings table. This value is fixed per the part number suffix "05" (SFAF1605G = 500V). It defines the highest instantaneous reverse voltage the diode can block repeatedly without breakdown under normal operating conditions, and must be derated per temperature curves above 25°C ambient.
Is SFAF1605G AEC-Q101 qualified?
The base SFAF1605G is not AEC-Q101 qualified; however, the variant SFAF1605GH is explicitly listed as AEC-Q101 qualified in the Ordering Information section. The "H" suffix denotes qualification, and both variants share identical electrical and thermal specifications - only reliability testing and traceability differ.
What is the forward voltage (VF) specification for SFAF1605G at rated current?
The SFAF1605G has a maximum forward voltage of 1.300 V at 16 A and 25°C junction temperature, as specified in the Electrical Specifications table. This is a guaranteed max limit - typical VF is lower, but design must use 1.300 V for worst-case thermal and efficiency calculations.
Does SFAF1605G have a built-in thermal protection feature?
No, the SFAF1605G is a passive rectifier diode and does not include thermal shutdown, sensing, or protection circuitry. Safe operation depends entirely on external thermal management - including heatsink sizing, airflow, and PCB copper area - guided by its RθJC = 1.3°C/W and TJ(max) = 150°C ratings.
Can SFAF1605G replace SFAF1604G or SFAF1606G in an existing design?
SFAF1605G can replace SFAF1604G (200V) only if the circuit's reverse voltage never exceeds 500V - but doing so adds unnecessary cost and may increase VF slightly. It cannot safely replace SFAF1606G (400V) in circuits approaching 400V reverse stress, as SFAF1605G's 500V rating is higher but VF and trr are matched to the 500V group - verify layout clearance and transient margins before substitution.
SFAF1605G 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):
- 300 V
- Current - Average Rectified (Io):
- 16A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 16 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 300 V
- Capacitance @ Vr, F:
- 100pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
SFAF1605G FAQ
1.How can I place an order for SFAF1605G through Aetrix?
Please submit a Request for Quotation (RFQ) for SFAF1605G 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 SFAF1605G reliable?
The price and inventory of SFAF1605G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFAF1605G is usually 5 days.
3.What payment methods are accepted for SFAF1605G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFAF1605G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SFAF1605G?
SFAF1605G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SFAF1605G 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 SFAF1605G?
For technical support, including SFAF1605G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFAF1605G requirements.
6.How does Aetrix verify that SFAF1605G is sourced from the original manufacturer or authorized distributors?
All SFAF1605G 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 SFAF1605G meets industry standards.
7.What is the process for return or replacement of SFAF1605G?
All SFAF1605G units undergo pre-shipment inspection (PSI). If there is an issue with SFAF1605G, 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 SFAF1605G part is unused and in its original packaging.
Return procedure for SFAF1605G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SFAF1605G 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…
