- Manufacturer
- Moisture Sensitivity Level (MSL)
- Number of Terminations
- Packaging
- Part Status
- RoHS Status
- Terminal Position
- Package / Case
- Analog IC - Other Type
- Internal Switch(s)
- Mounting Type
- Topology
- Number of Pins
Attribute column
Categories
PMIC - AC DC Converters, Offline Switchers
Product | Inventory | Pricing(USD) | Quantity | Datasheet | RoHS | Factory Lead Time | Lifecycle Status | Mount | Mounting Type | Package / Case | Surface Mount | Number of Pins | Supplier Device Package | Weight | Frequency(Max) | Operating Temperature | Packaging | Published | Series | JESD-609 Code | Pbfree Code | Part Status | Moisture Sensitivity Level (MSL) | Number of Terminations | Termination | ECCN Code | Resistance | Terminal Finish | Max Operating Temperature | Min Operating Temperature | Power (Watts) | Additional Feature | HTS Code | Power Rating | Max Power Dissipation | Terminal Position | Terminal Form | Peak Reflow Temperature (Cel) | Number of Functions | Supply Voltage | Terminal Pitch | Frequency | Time@Peak Reflow Temperature-Max (s) | Base Part Number | Pin Count | JESD-30 Code | Number of Outputs | Qualification Status | Output Voltage | Max Output Current | Operating Supply Voltage | Input Voltage-Nom | Supply Voltage-Max (Vsup) | Temperature Grade | Supply Voltage-Min (Vsup) | Interface | Max Supply Voltage | Analog IC - Other Type | Operating Supply Current | Nominal Supply Current | Power Dissipation | Output Current | Voltage - Supply (Vcc/Vdd) | Max Supply Current | Current - Output | Quiescent Current | Control Features | Max Output Voltage | Voltage - Output | Input Voltage (Min) | Topology | Min Input Voltage | Control Mode | Output Current-Max | Frequency - Switching | Input Voltage (Max) | Max Input Voltage | Control Technique | Rise Time | Fall Time (Typ) | Nominal Input Voltage | Switcher Configuration | Max Frequency | Internal Switch(s) | Fault Protection | Max Duty Cycle | Duty Cycle (Max) | Max Supply Voltage (AC) | Duty Cycle | Output Isolation | Voltage - Breakdown | Voltage - Start Up | Min Input Voltage (AC) | Max Input Voltage (AC) | Min Supply Voltage (AC) | Min Breakdown Voltage | Height | Height Seated (Max) | Length | Width | Thickness | Radiation Hardening | REACH SVHC | RoHS Status | Lead Free |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 MIC3808YMM-TR Microchip Technology | 11 |
| Datasheet | 7 Weeks | - | Surface Mount | Surface Mount | 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) | - | 8 | 8-MSOP | - | - | -40°C~85°C TA | Tape & Reel (TR) | 2005 | - | - | - | Active | 1 (Unlimited) | - | - | - | - | - | 85°C | -40°C | - | - | - | - | - | - | - | - | - | - | - | - | - | MIC3808 | - | - | 1 | - | - | - | - | - | - | - | - | - | 15V | - | - | - | - | 1kA | 8.3V~15V | - | - | - | Frequency Control | - | - | - | Push-Pull | - | - | - | Up to 1MHz | - | - | - | 60ns | 60 ns | - | - | 1MHz | No | Current Limiting | - | - | - | 49% | Isolated | - | 12.5V | - | - | - | - | - | - | - | - | - | - | - | ROHS3 Compliant | Lead Free | ||
 MC44605P ON Semiconductor | In Stock | - | Datasheet | - | - | Through Hole | Through Hole | 16-DIP (0.300, 7.62mm) | - | 16 | - | - | - | -25°C~150°C TJ | Tube | 2006 | GreenLine™ | e0 | - | Obsolete | 1 (Unlimited) | 16 | - | EAR99 | - | Tin/Lead (Sn/Pb) | - | - | - | - | - | - | - | DUAL | - | - | 1 | - | 2.54mm | 250kHz | - | MC44605 | 16 | - | 1 | - | 2.6V | - | 18V | 12V | - | - | - | - | - | SWITCHING CONTROLLER | - | - | - | - | 7.5V~18V | - | - | 5mA | Frequency Control, Soft Start, Sync | - | - | 9.6V | Flyback | - | CURRENT-MODE | 0.75A | Up to 250kHz | - | - | PULSE WIDTH MODULATION | - | - | - | SINGLE | - | No | Current Limiting, Over Voltage, Short Circuit | - | - | - | 80 % | Isolated | - | 14.5V | - | - | - | - | - | 4.44mm | - | 7.62mm | - | - | - | Non-RoHS Compliant | Contains Lead | ||
 FSDL321 ON Semiconductor | In Stock | - | Datasheet | - | - | Through Hole | Through Hole | 8-DIP (0.300, 7.62mm) | - | 8 | - | - | - | -25°C~85°C TA | Tube | - | FPS™ | e3 | - | Discontinued | 1 (Unlimited) | 8 | - | EAR99 | 14Ohm | Tin (Sn) | - | - | 17W | - | - | - | 1.4W | DUAL | - | - | 1 | - | 2.54mm | - | - | FSDL321 | - | - | 1 | - | - | - | - | 14V | - | - | - | - | - | SWITCHING REGULATOR | - | 3mA | 1.4W | 2A | 8V~20V | 3mA | - | 3mA | - | - | - | - | Flyback | - | CURRENT-MODE | - | 50kHz | - | 20V | PULSE WIDTH MODULATION | - | - | - | SINGLE | - | Yes | Current Limiting, Over Load, Over Temperature, Over Voltage | - | - | - | 77% | Isolated | 650V | 12V | - | - | - | - | - | - | - | 7.62mm | - | No | - | ROHS3 Compliant | Lead Free | ||
 UCC35706DG4 Texas Instruments | In Stock | - | - | - | - | - | - | SOIC | YES | 8 | - | 72.603129mg | 4MHz | - | - | - | - | e4 | - | - | 2 (1 Year) | 8 | - | EAR99 | - | Nickel/Palladium/Gold (Ni/Pd/Au) | 70°C | 0°C | - | - | - | - | - | DUAL | GULL WING | 260 | 1 | - | - | 4MHz | - | - | 8 | - | 1 | - | - | - | - | 11V | - | COMMERCIAL | - | - | 15V | SWITCHING CONTROLLER | - | - | - | - | - | - | 5mA | - | - | - | 300mV | - | Flyback, Boost | - | VOLTAGE-MODE | - | 4MHz | - | - | PULSE WIDTH MODULATION | 10ns | 10 ns | 30V | SINGLE | - | - | - | 93 % | 93 % | - | - | - | - | - | - | - | - | - | 1.58mm | - | 4.9mm | 3.91mm | - | No | - | RoHS Compliant | Lead Free | ||
 UCC2807DTR-2 Texas Instruments | 160 |
| - | 6 Weeks | ACTIVE (Last Updated: 1 day ago) | Surface Mount | Surface Mount | 8-SOIC (0.154, 3.90mm Width) | - | 8 | - | 72.603129mg | - | -55°C~150°C TJ | Tape & Reel (TR) | - | - | e4 | yes | Active | 2 (1 Year) | 8 | - | EAR99 | - | Nickel/Palladium/Gold (Ni/Pd/Au) | - | - | - | - | - | - | - | DUAL | GULL WING | 260 | 1 | 10V | - | 1MHz | - | UCC2807 | - | - | 1 | - | 400mV | - | - | 10V | - | - | - | - | - | SWITCHING CONTROLLER | - | - | - | 100mA | 8.3V~13.5V | - | - | - | - | - | - | 9V | Boost, Flyback, Forward | - | CURRENT-MODE | - | - | - | - | PULSE WIDTH MODULATION | 20ns | 20 ns | - | - | - | No | Current Limiting | 78 % | - | - | 78% | Isolated | - | 12.5V | - | - | - | - | 1.75mm | - | 4.9mm | 3.91mm | 1.58mm | - | - | ROHS3 Compliant | Lead Free | ||
 ICE2QR4780GXUMA2 Infineon Technologies | 2558 |
| Datasheet | 20 Weeks | - | - | Surface Mount | 12-BSOP (0.295, 7.50mm Width) | YES | - | - | - | - | -40°C~150°C TJ | Tape & Reel (TR) | 2016 | CoolMOS™, CoolSET™-Q1 | e3 | yes | Active | 3 (168 Hours) | 12 | - | EAR99 | - | Tin (Sn) | - | - | 37W | ALSO HAS A CONTROL TECHNIQUE OF PWM | 8542.39.00.01 | 22W | - | DUAL | GULL WING | NOT SPECIFIED | 1 | - | - | - | NOT SPECIFIED | - | - | R-PDSO-G12 | - | - | - | - | - | 17V | - | - | - | - | - | SWITCHING CONTROLLER | - | - | - | - | 10.5V~25V | - | - | - | - | - | - | 11.2V | Flyback | - | CURRENT-MODE | - | 52kHz | 26V | - | RESONANT CONTROL | - | - | - | SINGLE | - | Yes | Current Limiting, Over Load, Over Temperature, Over Voltage | - | - | - | 50% | Isolated | 800V | 18V | - | - | - | - | - | 1.75mm | 9.9mm | 3.9mm | - | - | - | ROHS3 Compliant | - | ||
 TOP233GN Power Integrations | 23264 |
| Datasheet | - | - | Surface Mount | Surface Mount | 8-SMD (7 Leads), Gull Wing | - | - | - | - | - | -40°C~150°C TJ | Tube | 2001 | TOPSwitch®-FX | e3 | - | Not For New Designs | 4 (72 Hours) | 8 | - | EAR99 | - | PURE MATTE TIN | - | - | 25W | - | - | - | 25W | DUAL | - | 250 | 1 | - | 2.54mm | - | 40 | - | 8 | R-PDSO-G8 | 1 | Not Qualified | 12V | - | - | - | - | - | - | Parallel, Serial | - | SWITCHING REGULATOR | 1.5mA | 1.5mA | - | - | - | - | - | - | Frequency Control | - | - | - | Flyback | - | VOLTAGE-MODE | - | 66kHz~132kHz | - | - | PULSE WIDTH MODULATION | - | - | - | SINGLE | - | Yes | Current Limiting, Over Temperature, Over Voltage | 78 % | - | 265V | - | Isolated | 700V | - | - | - | 85V | - | - | 3.65mm | 9.655mm | 6.35mm | - | - | - | RoHS Compliant | Lead Free | ||
 UC3861DWG4 Texas Instruments | 11 |
| Datasheet | 6 Weeks | ACTIVE (Last Updated: 5 days ago) | - | Surface Mount | 16-SOIC (0.295, 7.50mm Width) | YES | 16 | - | 473.692182mg | - | 0°C~70°C TA | Tube | - | - | e4 | yes | Active | 2 (1 Year) | 16 | - | EAR99 | - | Nickel/Palladium/Gold (Ni/Pd/Au) | - | - | - | - | - | - | - | DUAL | GULL WING | 260 | 1 | 12V | - | 450kHz | - | UC3861 | 16 | - | 2 | - | 1.7V | - | - | 12V | - | - | - | - | - | SWITCHING CONTROLLER | - | - | - | 200mA | 10.5V~22V | - | - | - | Soft Start | - | - | 11.5V | Full-Bridge, Half-Bridge, Push-Pull | - | VOLTAGE-MODE | - | 10kHz~1MHz | - | - | RESONANT CONTROL | 25ns | 25 ns | - | - | - | Yes | - | 50 % | - | - | 100 % | Non-Isolated | - | 16.5V | - | - | - | - | 2.65mm | - | 10.3mm | 7.5mm | 2.35mm | No | - | ROHS3 Compliant | Lead Free | ||
ICE5QR1680AGXUMA1 Infineon Technologies | 10 |
| Datasheet | 26 Weeks | - | - | Surface Mount | 12-BSOP (0.295, 7.50mm Width) | YES | - | - | - | - | -40°C~125°C TJ | Tape & Reel (TR) | 2017 | CoolMOS™, CoolSET™ | - | - | Active | 3 (168 Hours) | 12 | - | - | - | - | - | - | 50W | - | 8542.39.00.01 | 27W | - | DUAL | GULL WING | NOT SPECIFIED | 1 | 18V | 1.27mm | - | NOT SPECIFIED | - | - | R-PDSO-G12 | - | - | - | - | - | - | 27V | - | 9.5V | - | - | ANALOG CIRCUIT | - | - | - | - | 10V~27V | - | - | - | - | - | - | - | Flyback | - | - | - | - | - | - | - | - | - | - | - | - | Yes | Current Limiting, Open Loop, Over Load, Over Temperature, Over Voltage | - | - | - | - | Isolated | 800V | 16V | - | - | - | - | - | 1.75mm | 9.9mm | 3.9mm | - | - | - | ROHS3 Compliant | - | ||
 UC2879NG4 Texas Instruments | 11 |
| Datasheet | 6 Weeks | ACTIVE (Last Updated: 5 days ago) | Through Hole | Through Hole | 20-DIP (0.300, 7.62mm) | - | 20 | - | 2.259996g | - | -40°C~85°C TA | Tube | - | - | e4 | yes | Active | 1 (Unlimited) | 20 | Through Hole | EAR99 | - | Nickel/Palladium/Gold (Ni/Pd/Au) | - | - | - | ALSO HAS CONTROL MODE OF IPK, ALSO HAS CONTROL TECHNIQUE OF RESONANT | - | - | - | DUAL | - | - | 1 | - | - | 300kHz | - | UC2879 | 20 | - | 4 | - | 2.2V | 20mA | - | 12V | - | - | - | - | - | SWITCHING CONTROLLER | - | - | - | 10mA | 9.25V~20V | - | - | - | Frequency Control, Soft Start, Sync | 5V | - | - | Full-Bridge | - | VOLTAGE-MODE | - | - | - | 18V | PULSE WIDTH MODULATION | - | - | 12V | PHASE-SHIFT | - | - | Current Limiting | - | - | - | 50% | Non-Isolated | - | - | - | - | - | - | 5.08mm | - | 24.33mm | 6.35mm | 4.57mm | No | No SVHC | ROHS3 Compliant | Lead Free | ||
 MIC38HC42-1YM-TR Microchip Technology | 11 |
| Datasheet | 9 Weeks | - | Surface Mount | Surface Mount | 14-SOIC (0.154, 3.90mm Width) | - | 14 | - | - | - | -40°C~150°C TJ | Tape & Reel (TR) | 2005 | - | - | yes | Active | 1 (Unlimited) | 14 | - | - | - | - | - | - | - | - | - | - | - | DUAL | GULL WING | - | 1 | - | - | - | - | MIC38HC42 | - | - | 1 | - | 5V | - | - | 15V | - | - | - | - | - | SWITCHING CONTROLLER | - | - | - | 1kA | 9V~20V | - | - | - | Frequency Control | - | - | - | Boost, Buck, Flyback, Forward | - | CURRENT-MODE | - | - | - | - | PULSE WIDTH MODULATION | 20ns | 15 ns | - | BUCK-BOOST | 500kHz | Yes | - | - | - | - | 96% | Isolated | - | 14.5V | - | - | - | - | - | - | 8.65mm | 3.9mm | - | - | - | ROHS3 Compliant | Lead Free | ||
 ICE3AR2280JZ1XKLA1 Infineon Technologies | In Stock | - | - | - | - | Through Hole | Through Hole | 8-DIP (0.300, 7.62mm), 7 Leads | - | - | PG-DIP-7 | - | - | -25°C~125°C TJ | Tube | 2016 | CoolMOS™, CoolSET™F3R80 | - | - | Obsolete | 1 (Unlimited) | - | - | - | - | - | 125°C | -25°C | 43W | - | - | - | 43W | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 10.5V~25V | - | - | - | - | - | - | - | Flyback | - | - | - | 100kHz | - | - | - | - | - | - | - | - | Yes | Over Load, Over Temperature, Over Voltage | - | - | - | 75% | Isolated | 800V | 17V | - | - | - | - | - | - | - | - | - | - | - | RoHS Compliant | - | ||
 LNK6406D Power Integrations | 89 |
| Datasheet | 6 Weeks | - | Surface Mount | Surface Mount | 8-SOIC (0.154, 3.90mm Width), 7 Leads | - | 8 | - | - | - | -40°C~150°C TJ | Tube | 2015 | LinkSwitch™-3 | - | yes | Discontinued | 1 (Unlimited) | - | - | EAR99 | - | - | - | - | - | - | - | - | 6.1W | - | - | NOT SPECIFIED | - | - | - | - | NOT SPECIFIED | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | SWITCHING REGULATOR | - | 550μA | - | - | - | - | - | - | - | - | - | - | Flyback | - | - | - | Up to 85kHz | - | - | - | - | - | - | - | - | Yes | Current Limiting, Open Loop, Over Temperature, Short Circuit | - | - | - | 55% | Isolated | 725V | - | - | - | - | - | - | - | - | - | - | - | - | RoHS Compliant | - | ||
 TOP256EG Power Integrations | 7680 | - | Datasheet | 4 Weeks | - | Through Hole | Through Hole | 7-SIP, 6 Leads, Exposed Pad, Formed Leads | - | 6 | - | - | - | -40°C~150°C TJ | Tube | 2009 | TOPSwitch®-HX | e3 | - | Active | 1 (Unlimited) | 6 | - | - | - | MATTE TIN | - | - | - | - | 8542.39.00.01 | 86W | 119W | ZIG-ZAG | - | - | 1 | - | 1.27mm | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | ANALOG CIRCUIT | - | - | - | - | - | - | - | - | - | - | - | - | Flyback | - | - | - | 66kHz 132kHz | - | - | - | - | - | - | - | - | Yes | Current Limiting, Over Temperature, Over Voltage | - | - | - | 78% | Isolated | 700V | - | - | - | - | - | - | - | - | 2.01mm | - | No | - | RoHS Compliant | - | ||
 NCP1079BAP100G ON Semiconductor | 266 |
| Datasheet | 6 Weeks | ACTIVE (Last Updated: 1 week ago) | - | Through Hole | 8-DIP (0.300, 7.62mm), 7 Leads | - | - | - | - | - | -40°C~125°C TJ | Tube | 2015 | - | - | yes | Active | 1 (Unlimited) | - | - | - | - | - | - | - | 41W | - | - | 30W | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 6.5V~20V | - | - | - | - | - | - | - | Flyback | - | - | - | 100kHz | - | - | - | - | - | - | - | - | Yes | Current Limiting, Over Power, Over Temperature, Over Voltage, Short Circuit | - | - | - | 68% | Isolated | 700V | 8.4V | - | - | - | - | - | - | - | - | - | - | - | ROHS3 Compliant | - | ||
 INN3164C-H101-TL Power Integrations | 100 |
| Datasheet | 8 Weeks | - | - | Surface Mount | 24-PowerSMD Module (0.425, 10.80mm Width), 17 Leads | - | - | - | - | - | -40°C~105°C TA | Tape & Reel (TR) | - | InnoSwitch™3-CE | - | - | Active | 3 (168 Hours) | - | - | EAR99 | - | - | - | - | - | - | 8542.39.00.01 | 15W | - | - | - | NOT SPECIFIED | - | - | - | - | NOT SPECIFIED | - | - | - | - | - | - | - | - | - | - | - | - | - | - | SWITCHING CONTROLLER | - | - | - | - | - | - | - | - | - | - | - | - | Flyback, Secondary Side SR | - | - | - | 100kHz | - | - | - | - | - | - | - | - | Yes | Over Temperature, Over Voltage | - | - | - | - | Isolated | 650V | - | - | - | - | - | - | - | - | - | - | - | - | RoHS Compliant | - | ||
FSFM261N ON Semiconductor | In Stock | - | Datasheet | - | - | Through Hole | Through Hole | 8-DIP (0.300, 7.62mm) | - | 8 | - | 930mg | - | -25°C~85°C TA | Tube | - | FPS™ | - | - | Obsolete | 1 (Unlimited) | - | - | - | - | - | - | - | - | - | - | - | 35W | - | - | - | - | - | - | - | - | FSFM261 | - | - | 1 | - | - | - | - | - | - | - | - | - | - | SWITCHING CONTROLLER | - | 3mA | 1.5W | 1.32A | 8V~21V | 5mA | - | - | - | - | - | - | Flyback | - | - | - | 67kHz | - | - | - | - | - | - | - | - | Yes | Current Limiting, Over Load, Over Temperature, Over Voltage | 83 % | - | - | 77% | Isolated | - | 12V | - | - | - | 700V | - | - | - | - | - | - | - | RoHS Compliant | - | ||
 NCV1397BDR2G ON Semiconductor | 180 |
| Datasheet | 18 Weeks | ACTIVE (Last Updated: 1 day ago) | Surface Mount | Surface Mount | 16-SOIC (0.154, 3.90mm Width), 15 Leads | - | - | - | - | - | -40°C~125°C TJ | Tape & Reel (TR) | 2006 | Automotive, AEC-Q100 | e3 | yes | Active | 1 (Unlimited) | 15 | - | - | - | Tin (Sn) | - | - | - | - | - | - | - | DUAL | GULL WING | - | 1 | - | 1.27mm | - | - | - | - | R-PDSO-G15 | - | - | - | - | - | 12V | - | - | - | - | - | SWITCHING CONTROLLER | - | - | - | - | 9.5V~20V | - | - | - | Frequency Control | - | - | 11.3V | Half-Bridge | - | - | - | 60kHz~500kHz | 20V | - | RESONANT CONTROL | - | - | - | - | - | No | Current Limiting, Over Temperature, Over Voltage, Short Circuit | - | - | - | 50% | Isolated | - | 10.5V | - | - | - | - | - | 1.75mm | 9.9mm | 3.9mm | - | - | - | ROHS3 Compliant | Lead Free | ||
 LNK6779K Power Integrations | 50 |
| Datasheet | 4 Weeks | - | Surface Mount | Surface Mount | 12-BESOP (0.350, 8.89mm Width), 11 Leads, Exposed Pad | - | 11 | - | - | - | -40°C~150°C TJ | Tube | 2014 | LinkSwitch™-HP | - | - | Active | 3 (168 Hours) | 11 | - | - | - | - | - | - | - | - | 8542.39.00.01 | 56W | 77W | DUAL | GULL WING | 260 | 1 | - | 1.78mm | - | 40 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | ANALOG CIRCUIT | - | - | - | - | - | - | - | - | - | - | - | - | Flyback | 85V | - | - | 120kHz~136kHz | - | 265V | - | - | - | - | - | - | Yes | Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit | - | - | - | 64% | Isolated | 725V | - | 85V | 265V | - | - | - | 2.49mm | 10.16mm | 8.89mm | - | - | No SVHC | RoHS Compliant | - | ||
 TOP232YN Power Integrations | 61 |
| Datasheet | - | - | - | Through Hole | TO-220-7 (Formed Leads), 5 Leads | NO | - | - | - | - | -40°C~150°C TJ | Tube | 2001 | TOPSwitch®-FX | e3 | - | Not For New Designs | 1 (Unlimited) | 5 | - | EAR99 | - | PURE MATTE TIN | - | - | 25W | - | 8542.39.00.01 | - | 25W | ZIG-ZAG | - | - | 1 | - | 1.27mm | - | - | - | 3 | R-PZFM-T5 | - | - | 12V | - | - | - | - | - | - | - | - | SWITCHING REGULATOR | - | 1.5mA | - | - | - | - | - | - | Frequency Control | - | - | - | Flyback | - | VOLTAGE-MODE | 0.8A | 66kHz~132kHz | - | - | PULSE WIDTH MODULATION | - | - | - | SINGLE | - | Yes | Current Limiting, Over Temperature, Over Voltage | 78 % | - | 265V | - | Isolated | 700V | - | - | - | 85V | - | - | - | - | - | - | No | - | RoHS Compliant | Lead Free |