My Inquiry
My Account
Taiwan Semiconductor Corporation SFF2005G
- Part No.:
- SFF2005G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
SFF2005G.pdf
- Description:
- DIODE GEN PURP 300V 20A ITO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,246
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SFF2005G from Taiwan Semiconductor is a 20A, 300V super fast rectifier diode in ITO-220AB package with dual-die configuration, 1.300V forward voltage at 10A/25°C, 35ns reverse recovery time, and 150A surge capability - used in high-frequency DC-DC converters requiring low conduction loss and fast switching.
For engineers reviewing the SFF2005G datasheet, SFF2005G pinout, SFF2005G application, or SFF2005G equivalent, key selection criteria include VRRM = 300V, IF = 20A, trr = 35ns, RθJC = 2.5°C/W, and AEC-Q101 qualification status (not applicable to standard SFF2005G).
Technical Context
This super fast rectifier uses optimized epitaxial silicon construction to achieve 35ns reverse recovery time while sustaining 300V repetitive peak reverse voltage and 20A average forward current. Its dual-die ITO-220AB package enables parallel internal paths for thermal and current sharing.
The device operates across -55°C to +150°C junction temperature range with 2.5°C/W junction-to-case thermal resistance, supporting high-power-density switching applications where low VF and fast trr reduce switching losses in hard-commutated topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 300 V - Maximum non-repetitive reverse blocking voltage before breakdown; defines usable input voltage headroom in boost/flyback designs |
| IF | 20 A - Continuous average forward current at case temperature ≤75°C; determines heatsink sizing in steady-state operation |
| IFSM | 150 A - Peak non-repetitive surge current (8.3ms half-sine); supports inrush and fault-current handling without failure |
| trr | 35 ns - Reverse recovery time at IF=0.5A, IR=1.0A, Irr=0.25A; enables >100 kHz switching in SMPS with minimal turn-off loss |
| VF | 1.300 V - Forward voltage per diode at IF=10A, TJ=25°C; directly impacts conduction loss and thermal design in high-current paths |
| RθJC | 2.5 °C/W - Junction-to-case thermal resistance; allows direct calculation of ΔTJ-C = Ploss × 2.5 for thermal interface design |
| CJ | 90 pF - Junction capacitance per diode at 1 MHz, VR=4V; influences high-frequency ringing and EMI in snubberless layouts |
Pinout & Package
Package: ITO-220AB - Insulated TO-220 variant with electrically isolated tab, matte tin-plated leads, UL 94V-0 molding compound, and 0.56 N·m maximum mounting torque. Polarity marked on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to switching node in freewheeling path; must withstand full load current and dI/dt stress |
| Cathode (Lead 2) | Forward current exit point | Typically tied to output rail or ground return; low-inductance layout critical for EMI control |
| Tab (Isolated) | Thermal interface only | Electrically isolated metal surface for heatsink attachment; no electrical connection required for circuit function |
Key Features
| Feature | Design Value |
|---|---|
| Super fast recovery (trr = 35 ns) | Enables efficient operation above 100 kHz in hard-switched converters without added snubbers |
| Low forward voltage (VF = 1.300 V @ 10A) | Reduces conduction loss by ~15% vs. standard fast rectifiers, lowering thermal load in compact enclosures |
| Dual-die configuration | Provides inherent current sharing and improved thermal distribution across the ITO-220AB footprint |
| UL Recognized (E-326243) | Validates safety compliance for end-equipment certification in industrial and power supply applications |
| RoHS & halogen-free | Meets IEC 61249-2-21 requirements for environmentally constrained manufacturing and disposal |
Applications
| DC-DC Converters | Switching Inverters |
|---|---|
Use Scenario: Secondary-side rectification in isolated 48V–300V input DC-DC modules for telecom and server PSUs. IC Role / Device Role / Timing Role: Super fast rectifier providing unidirectional current flow during synchronous or asynchronous flyback/forward operation. Use Value: 35ns trr minimizes reverse recovery loss during high-frequency switching, improving efficiency by up to 1.2% at 200 kHz. | Use Scenario: Freewheeling path in three-phase motor drive inverters operating at 8–16 kHz PWM frequency. IC Role / Device Role / Timing Role: Clamp diode absorbing inductive kickback energy during IGBT turn-off transitions. Use Value: 150A IFSM withstands repeated motor stall currents without degradation, extending system reliability. |
| SMPS Power Supplies | Industrial Power Rectification |
Use Scenario: Output rectification in 500W–1kW AC-DC front-end supplies with active PFC and LLC resonant stages. IC Role / Device Role / Timing Role: High-current secondary rectifier handling continuous 20A output with minimal voltage drop. Use Value: 1.300V VF reduces conduction loss to <1.3W at full load, easing thermal management in enclosed chassis. | Use Scenario: Input bridge rectification in industrial UPS systems requiring robust surge immunity and long service life. IC Role / Device Role / Timing Role: Main AC line rectifier converting 3-phase 400VAC input to DC bus under transient overvoltage conditions. Use Value: 300V VRRM provides 2× safety margin over 400VAC peak (565V), preventing avalanche failure during line surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2003D | VRRM = 300V, trr = 35ns, VF = 1.35V @ 10A, TO-220AC package (non-isolated tab) | Non-isolated tab requires insulating hardware; slightly higher VF increases conduction loss | Select when cost sensitivity outweighs isolation requirement and PCB layout accommodates insulation |
| IXYS MUR2030CT | VRRM = 300V, trr = 35ns, VF = 1.25V @ 10A, TO-220AB package (isolated tab), dual common-cathode | Common-cathode configuration simplifies dual-output designs but requires revalidation of gate drive timing | Select for dual-rail outputs or where lower VF justifies layout change and sourcing complexity |
Compared with STTH2003D and IXYS MUR2030CT, the SFF2005G offers identical VRRM and trr, but its ITO-220AB isolation eliminates need for mica washers, and its 1.300V VF balances efficiency and ruggedness better than the MUR2030CT's 1.25V in high-surge environments.
Availability
SFF2005G is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and industrial power rectification requiring stable component supply, consistent parametric performance, and long-term manufacturability.
Supply support for SFF2005G 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 SFF2005G belongs to TSC's SFF200xG super fast rectifier family, designed specifically for high-efficiency, high-reliability power conversion in space-constrained industrial and telecom power supplies.
FAQ
What is the maximum junction temperature rating for the SFF2005G?
The SFF2005G has a maximum junction temperature (TJ) of +150°C, with operational range from -55°C to +150°C. This rating enables use in high-ambient environments such as enclosed power supplies or motor drives. Thermal design must ensure that power dissipation - calculated using VF × IF and RθJC - keeps actual TJ below this limit. The SFF2005G's 2.5°C/W RθJC supports direct heatsink mounting for reliable derating.
Is the SFF2005G AEC-Q101 qualified?
No, the standard SFF2005G is not AEC-Q101 qualified. Only the SFF2005GH variant carries AEC-Q101 qualification per the ordering information table. The SFF2005G meets industrial-grade reliability standards including JESD201 Class 2 whisker testing and UL Recognition (E-326243), but automotive qualification requires explicit "H" suffix. Engineers selecting for automotive applications must specify SFF2005GH and verify test reports.
What does the marking code "SFF2005G" indicate on the device body?
The marking code "SFF2005G" identifies the exact part: "SFF" denotes super fast rectifier family, "20" indicates 20A rating, "05" specifies 300V VRRM (per the series mapping: 01=50V, 02=100V…05=300V), and "G" signifies RoHS-compliant, halogen-free green molding compound. Date code (YWW) and factory code (F) appear adjacent per the marking diagram in the datasheet.
How does the ITO-220AB package differ from standard TO-220AB in the SFF2005G?
The ITO-220AB package used in the SFF2005G features an electrically isolated metal tab, unlike standard TO-220AB where the tab is internally connected to the cathode. This isolation eliminates need for insulating hardware when mounting to grounded heatsinks. The SFF2005G's ITO-220AB also specifies matte tin-plated leads, UL 94V-0 compound, and 0.56 N·m max mounting torque - all verified in the mechanical data section.
What is the reverse recovery charge (Qrr) specification for the SFF2005G?
The datasheet does not publish Qrr for the SFF2005G; only trr = 35ns is specified under defined test conditions (IF=0.5A, IR=1.0A, Irr=0.25A). Qrr depends on circuit conditions and cannot be derived solely from trr. For designs sensitive to recovery charge - such as ZVS/ZCS topologies - engineers should characterize Qrr empirically or select devices with published Qrr curves. The SFF2005G's 35ns trr remains valid for comparative loss estimation in hard-switched applications.
SFF2005G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-3 Full Pack, Isolated Tab
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 300 V
- Current - Average Rectified (Io):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 300 V
- Capacitance @ Vr, F:
- 90pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AB
- Operating Temperature - Junction:
- -55°C ~ 150°C
SFF2005G FAQ
1.How can I place an order for SFF2005G through Aetrix?
Please submit a Request for Quotation (RFQ) for SFF2005G 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 SFF2005G reliable?
The price and inventory of SFF2005G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFF2005G is usually 5 days.
3.What payment methods are accepted for SFF2005G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFF2005G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SFF2005G?
SFF2005G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SFF2005G 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 SFF2005G?
For technical support, including SFF2005G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFF2005G requirements.
6.How does Aetrix verify that SFF2005G is sourced from the original manufacturer or authorized distributors?
All SFF2005G 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 SFF2005G meets industry standards.
7.What is the process for return or replacement of SFF2005G?
All SFF2005G units undergo pre-shipment inspection (PSI). If there is an issue with SFF2005G, 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 SFF2005G part is unused and in its original packaging.
Return procedure for SFF2005G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SFF2005G 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…
