Näytä kaikki

Katso englanninkielisestä versiosta virallisena versiona.Palata

France(Français) Germany(Deutsch) Italy(Italia) Russian(русский) Poland(polski) Czech(Čeština) Luxembourg(Lëtzebuergesch) Netherlands(Nederland) Iceland(íslenska) Hungarian(Magyarország) Spain(español) Portugal(Português) Turkey(Türk dili) Bulgaria(Български език) Ukraine(Україна) Greece(Ελλάδα) Israel(עִבְרִית) Sweden(Svenska) Finland(Svenska) Finland(Suomi) Romania(românesc) Moldova(românesc) Slovakia(Slovenská) Denmark(Dansk) Slovenia(Slovenija) Slovenia(Hrvatska) Croatia(Hrvatska) Serbia(Hrvatska) Montenegro(Hrvatska) Bosnia and Herzegovina(Hrvatska) Lithuania(lietuvių) Spain(Português) Switzerland(Deutsch) United Kingdom(English) Japan(日本語) Korea(한국의) Thailand(ภาษาไทย) Malaysia(Melayu) Singapore(Melayu) Vietnam(Tiếng Việt) Philippines(Pilipino) United Arab Emirates(العربية) Iran(فارسی) Tajikistan(فارسی) India(हिंदी) Madagascar(malaɡasʲ) New Zealand(Maori) Brazil(Português) Angola(Português) Mozambique(Português) United States(English) Canada(English) Haiti(Ayiti) Mexico(español)
KotiTuotteetEristeetOptoisolaattorit - transistori, aurinkosähkölähtö

Optoisolaattorit - transistori, aurinkosähkölähtö

Löydetty 3,374 -tuotteet

Tuotelista

1234567...68
Vertailla Kuva Osa # Valmistaja Kuvaus inventaario ECAD -malli RoHS Vce Saturation (Max) Jännite - Isolation Rise / Fall Time (tyyppinen) Voltage - lähtö (Max) Jännite - eteenpäin (Vf) (tyyppi) Nykyinen - DC eteenpäin (jos) (maksimi) Nykyinen Transfer Ratio (Min) Nykyinen Transfer Ratio (Max) Kytke päälle / pois päältä (Typ) Perustuotteenumero Paketti Sarja Syötetyyppi Käyttölämpötila Asennustyyppi lähtö Tyyppi Kanavien lukumäärä Pakkaus / Case Toimittaja Device Package Nykyinen - Tuotos / kanava Määrä
HCPL-J454-600E HCPL-J454-600E Broadcom Limited OPTOISO 3.75KV TRANSISTOR 8SMD Varastossa32923 pcs - 3750Vrms - 20V 1.59V 25 mA 19% @ 16mA 60% @ 16mA 500ns, 800ns HCPL-J454 Tape & Reel (TR) - DC -55°C ~ 100°C Surface Mount Transistor 1 8-SMD, Gull Wing 8-SMD 8mA
PS2861-1-F3 PS2861-1-F3 CEL OPTOISOLATOR 2.5KV TRANS 4SOIC Varastossa4060 pcs 300mV 2500Vrms 4µs, 5µs 40V 1.1V 50 mA 50% @ 5mA 400% @ 5mA - - Tape & Reel (TR) NEPOC DC -55°C ~ 100°C Surface Mount Transistor 1 4-SOIC (0.173", 4.40mm Width) 4-SOP 40mA
H11AA1-X007T H11AA1-X007T Vishay Semiconductor Opto Division OPTOISO 5.3KV TRANS W/BASE 6SMD Varastossa56600 pcs 400mV 5300Vrms - 30V 1.2V 60 mA 20% @ 10mA - - H11 Tape & Reel (TR) - AC, DC -55°C ~ 100°C Surface Mount Transistor with Base 1 6-SMD, Gull Wing 6-SMD -
LTV-358T-A LTV-358T-A Lite-On Inc. OPTOISOLATOR 3.75KV TRANS 4SOP Varastossa4480 pcs 200mV 3750Vrms 4µs, 3µs 120V 1.2V 50 mA 80% @ 5mA 160% @ 5mA - LTV-358 Tape & Reel (TR) LTV-358T DC -55°C ~ 110°C Surface Mount Transistor 1 4-SMD, Gull Wing 4-SOP 50mA
ACPL-W454-560E ACPL-W454-560E Broadcom Limited OPTOISOLATOR 5KV TRANS 6SOIC Varastossa23537 pcs - 5000Vrms - 20V 1.5V 25 mA 25% @ 16mA 60% @ 16mA 200ns, 300ns ACPL-W454 Tape & Reel (TR) - DC -55°C ~ 100°C Surface Mount Transistor 1 6-SOIC (0.268', 6.80mm Width) 6-SO Stretched 8mA
MOC207R1M MOC207R1M Fairchild Semiconductor TRANSISTOR OUTPUT OPTOCOUPLER Varastossa3970 pcs 400mV 2500Vrms 3.2µs, 4.7µs 30V 1.15V 60 mA 100% @ 10mA 200% @ 10mA 7.5µs, 5.7µs - Bulk - DC -40°C ~ 100°C Surface Mount Transistor with Base 1 8-SOIC (0.154", 3.90mm Width) 8-SOIC 150mA
FODM121AR2 FODM121AR2 onsemi OPTOISO 3.75KV TRANSISTOR 4SMD Varastossa206040 pcs 400mV 3750Vrms 3µs, 3µs 80V 1.3V (Max) 50 mA 100% @ 5mA 300% @ 5mA - FODM121 Tape & Reel (TR) - DC -40°C ~ 110°C Surface Mount Transistor 1 4-SMD, Gull Wing 4-SMD 80mA
HMHA281R1 HMHA281R1 onsemi OPTOISO 3.75KV TRANSISTOR 4SMD Varastossa3670 pcs 400mV 3750Vrms 3µs, 3µs 80V 1.3V (Max) 50 mA 50% @ 5mA 600% @ 5mA - HMHA28 Tape & Reel (TR) - DC -55°C ~ 100°C Surface Mount Transistor 1 4-SOIC (0.173', 4.40mm Width) 4-Mini-Flat 50mA
VOMA617A-3X001T VOMA617A-3X001T Vishay Semiconductor Opto Division SINGLE CHANNEL, 80V, SOP-4 PHOTO Varastossa37510 pcs 400mV 3750Vrms 2.3µs, 3.2µs 80V 1.33V 20 mA 100% @ 5mA 200% @ 5mA 4.9µs, 3.3µs VOMA617 Tape & Reel (TR) VOMA617A DC -40°C ~ 110°C Surface Mount Transistor 1 4-SMD, Gull Wing 4-SOP 50mA
H11A1S H11A1S Lite-On Inc. OPTOISO 5KV TRANS W/BASE 6SMD Varastossa4080 pcs 400mV 5000Vrms 2.8µs, 4.5µs 30V 1.2V 60 mA 50% @ 10mA - - H11A Tube H11AX DC -55°C ~ 100°C Surface Mount Transistor with Base 1 6-SMD, Gull Wing 6-SMD 150mA
HMHA2801CR1 HMHA2801CR1 onsemi OPTOISO 3.75KV TRANSISTOR 4SMD Varastossa4160 pcs 300mV 3750Vrms 3µs, 3µs 80V 1.3V (Max) 50 mA 200% @ 5mA 400% @ 5mA - HMHA28 Tape & Reel (TR) - DC -55°C ~ 100°C Surface Mount Transistor 1 4-SOIC (0.173", 4.40mm Width) 4-Mini-Flat 50mA
ILQ32-X009 ILQ32-X009 Vishay Semiconductor Opto Division OPTOISO 5.3KV 4CH DARL 16SMD Varastossa21763 pcs 1V 5300Vrms - 30V 1.25V 60 mA 500% @ 10mA - 15µs, 30µs ILQ32 Tube - DC -55°C ~ 100°C Surface Mount Darlington 4 16-SMD, Gull Wing 16-SMD 125mA
ISP815X ISP815X Isocom Components 2004 LTD OPTOISO 5.3KV DARL 4DIP Varastossa222370 pcs 1V 5300Vrms 60µs, 53µs 35V 1.2V 50 mA 60% @ 1mA 7500% @ 1mA - ISP815 Tube - DC -30°C ~ 100°C Through Hole Darlington 1 4-DIP (0.300', 7.62mm) - 80mA
FODM8801A FODM8801A onsemi OPTOISO 3.75KV TRANS 4-MINI-FLAT Varastossa51970 pcs 400mV 3750Vrms 5µs, 5.5µs 75V 1.35V 20 mA 80% @ 1mA 160% @ 1mA 6µs, 6µs FODM8801 Tube OptoHit™ DC -40°C ~ 125°C Surface Mount Transistor 1 4-SOIC (0.173", 4.40mm Width) 4-Mini-Flat 30mA
FOD814AS FOD814AS onsemi OPTOISOLATOR 5KV TRANSISTOR 4SMD Varastossa171250 pcs 200mV 5000Vrms 4µs, 3µs 70V 1.2V 50 mA 50% @ 1mA 150% @ 1mA - FOD814 Tube - AC, DC -55°C ~ 105°C Surface Mount Transistor 1 4-SMD, Gull Wing 4-SMD 50mA
TCLT1106 TCLT1106 Vishay Semiconductor Opto Division OPTOISO 5KV TRANS W/BASE 6SOP Varastossa153850 pcs 300mV 5000Vrms 3µs, 4.7µs 80V 1.25V 60 mA 100% @ 5mA 300% @ 5mA 6µs, 5µs TCLT1106 Tape & Reel (TR) - DC -55°C ~ 100°C Surface Mount Transistor with Base 1 6-SOIC (0.295", 7.50mm Width), 5 Leads 6-SOP, 5 Pin 50mA
PS2565L1-1-V-A PS2565L1-1-V-A Renesas Electronics America Inc OPTOISOLATOR 5KV TRANS 4DIP Varastossa69930 pcs 300mV 5000Vrms 3µs, 5µs 80V 1.17V 80 mA 80% @ 5mA 400% @ 5mA - PS2565 Tube NEPOC AC, DC -55°C ~ 100°C Through Hole Transistor 1 4-DIP (0.400", 10.16mm) 4-DIP 50mA
TIL113SM TIL113SM onsemi OPTOISO 4.17KV DARL W/BASE 6SMD Varastossa141720 pcs 1.25V 4170Vrms - 30V 1.2V 80 mA 300% @ 10mA - 5µs, 100µs (Max) TIL113 Bulk - DC -40°C ~ 100°C Surface Mount Darlington with Base 1 6-SMD, Gull Wing 6-SMD 150mA
PS2506-4-A PS2506-4-A CEL OPTOISO 5KV 4CH DARLINGTON 16DIP Varastossa5230 pcs 1V 5000Vrms 100µs, 100µs 40V 1.17V 80 mA 200% @ 1mA - - - Tube NEPOC AC, DC -55°C ~ 100°C Through Hole Darlington 4 16-DIP (0.300", 7.62mm) 16-DIP 160mA
PS2811-1-F3-A PS2811-1-F3-A CEL OPTOISOLATOR 2.5KV TRANS 4SOIC Varastossa4510 pcs 300mV 2500Vrms 4µs, 5µs 40V 1.15V 50 mA 100% @ 1mA 400% @ 1mA - - Tape & Reel (TR) NEPOC DC -55°C ~ 100°C Surface Mount Transistor 1 4-SOIC (0.173", 4.40mm Width) 4-SSOP 40mA
MOC8111SD MOC8111SD onsemi OPTOISOLATOR 5.3KV TRANS 6-SMD Varastossa5110 pcs 400mV 5300Vrms 2µs, 11µs 70V 1.15V 90 mA 20% @ 10mA - 3µs, 18µs MOC811 Tape & Reel (TR) - DC -55°C ~ 100°C Surface Mount Transistor 1 6-SMD, Gull Wing 6-SMD -
H11AA4SR2VM H11AA4SR2VM onsemi OPTOISO 4.17KV TRANS W/BASE 6SMD Varastossa92650 pcs 400mV 4170Vrms - 30V 1.17V 60 mA 100% @ 10mA - - H11AA Tape & Reel (TR) - AC, DC -40°C ~ 100°C Surface Mount Transistor with Base 1 6-SMD, Gull Wing 6-SMD 50mA
FOD817B300 FOD817B300 onsemi OPTOISOLATOR 5KV TRANSISTOR 4DIP Varastossa458400 pcs 200mV 5000Vrms 4µs, 3µs 70V 1.2V 50 mA 130% @ 5mA 260% @ 5mA - FOD817 Tube - DC -55°C ~ 110°C Through Hole Transistor 1 4-DIP (0.300', 7.62mm) 4-DIP 50mA
H11G2VM H11G2VM Fairchild Semiconductor DARLINGTON OUTPUT OPTOCOUPLER, 7 Varastossa5000 pcs 1V 4170Vrms - 80V 1.3V 60 mA 1000% @ 10mA - 5µs, 100µs - Bulk - DC -40°C ~ 100°C Through Hole Darlington with Base 1 6-DIP (0.300", 7.62mm) 6-DIP -
HCPL-070A-500E HCPL-070A-500E Broadcom Limited OPTOISO 3.75KV DARLINGTON 8-SO Varastossa18227 pcs - 3750Vrms - 18V 1.25V 5 mA 600% @ 500µA 8000% @ 500µA 3µs, 34µs HCPL-070 Tape & Reel (TR) - DC 0°C ~ 70°C Surface Mount Darlington with Base 1 8-SOIC (0.154', 3.90mm Width) 8-SO 60mA
H11AA4S H11AA4S onsemi OPTOISO 5.3KV TRANS W/BASE 6SMD Varastossa3650 pcs 400mV 5300Vrms - 30V 1.2V 100 mA 100% @ 10mA - - H11A Tube - AC, DC -55°C ~ 100°C Surface Mount Transistor with Base 1 6-SMD, Gull Wing 6-SMD -
PC817X1NSZ0F PC817X1NSZ0F SHARP/Socle Technology OPTOISOLATOR 5KV TRANS 4DIP Varastossa4610 pcs 200mV 5000Vrms 4µs, 3µs 80V 1.2V 50 mA 80% @ 5mA 160% @ 5mA - - Tube - DC -30°C ~ 100°C Through Hole Transistor 1 4-DIP (0.300", 7.62mm) 4-DIP 50mA
PVI5013RSPBF PVI5013RSPBF Infineon Technologies OPTOISO 3.75KV 2CH PHVOLT 8-SMT Varastossa3930 pcs - 3750Vrms - 8V - - - - 5ms, 250µs (Max) PVI5013 Tube PVI DC -40°C ~ 85°C Surface Mount Photovoltaic 2 8-SMD, Gull Wing 8-SMD 1µA
H11A2SM H11A2SM onsemi OPTOISO 7.5KV TRANS W/BASE 6SMD Varastossa4340 pcs 400mV 7500Vpk - 30V 1.18V 60 mA 20% @ 10mA - 2µs, 2µs H11A Bulk - DC -40°C ~ 100°C Surface Mount Transistor with Base 1 6-SMD, Gull Wing 6-SMD -
4N33SM 4N33SM onsemi OPTOISO 4.17KV DARL W/BASE 6SMD Varastossa149500 pcs 1V 4170Vrms - 30V 1.2V 80 mA 500% @ 10mA - 5µs, 100µs (Max) 4N33 Tube - DC -40°C ~ 100°C Surface Mount Darlington with Base 1 6-SMD, Gull Wing 6-SMD 150mA
H11G2SD H11G2SD onsemi OPTOISO 5.3KV DARL W/BASE 6SMD Varastossa4740 pcs 1V 5300Vrms - 80V 1.3V 60 mA 1000% @ 10mA - 5µs, 100µs H11G Tape & Reel (TR) - DC -55°C ~ 100°C Surface Mount Darlington with Base 1 6-SMD, Gull Wing 6-SMD -
TCET4100 TCET4100 Vishay Semiconductor Opto Division OPTOISOLTR 5KV 4CH TRANS 16-DIP Varastossa48200 pcs 300mV 5000Vrms 3µs, 4.7µs 70V 1.25V 60 mA 50% @ 5mA 600% @ 5mA 6µs, 5µs TCET4100 Tube - DC -55°C ~ 100°C Through Hole Transistor 4 16-DIP (0.300', 7.62mm) 16-DIP 50mA
CNY17F-3X007T CNY17F-3X007T Vishay Semiconductor Opto Division OPTOISOLTR 5KV TRANSISTOR 6-SMD Varastossa84350 pcs 400mV 5000Vrms 2µs, 2µs 70V 1.39V 60 mA 100% @ 10mA 200% @ 10mA 3µs, 2.3µs CNY17 Tape & Reel (TR) - DC -55°C ~ 110°C Surface Mount Transistor 1 6-SMD, Gull Wing 6-SMD 50mA
HCPL-0534-500E HCPL-0534-500E Broadcom Limited OPTOISO 3.75KV 2CH TRANS 8SOIC Varastossa8574 pcs - 3750Vrms - 20V 1.5V 25 mA 15% @ 16mA 50% @ 16mA 200ns, 600ns HCPL-0534 Tape & Reel (TR) - DC -55°C ~ 100°C Surface Mount Transistor 2 8-SOIC (0.154', 3.90mm Width) 8-SO 8mA
HCPL-0452 HCPL-0452 Broadcom Limited OPTOISOLATOR 3.75KV TRANS 8-SO Varastossa25775 pcs - 3750Vrms - 20V 1.5V 25 mA 15% @ 16mA - 1µs, 1µs (Max) HCPL-0452 Tube - DC -55°C ~ 100°C Surface Mount Transistor 1 8-SOIC (0.154", 3.90mm Width) 8-SO 8mA
PS2561DL1-1Y-V-A PS2561DL1-1Y-V-A CEL OPTOISOLATOR 5KV TRANS 4DIP Varastossa4340 pcs 300mV 5000Vrms 3µs, 5µs 80V 1.2V 40 mA 50% @ 5mA 400% @ 5mA - - Bulk NEPOC DC -55°C ~ 110°C Through Hole Transistor 1 4-DIP (0.400', 10.16mm) 4-DIP 50mA
VOM617AT VOM617AT Vishay Semiconductor Opto Division OPTOISOLATOR 3.75KV TRANS 4-SOP Varastossa184280 pcs 400mV 3750Vrms 3µs, 3µs 80V 1.1V 60 mA 50% @ 5mA 600% @ 5mA 6µs, 4µs VOM617 Tape & Reel (TR) - DC -55°C ~ 110°C Surface Mount Transistor 1 4-SMD, Gull Wing 4-SOP 50mA
PS2561-2-V PS2561-2-V CEL OPTOISOLATOR 5KV 2CH TRANS 8DIP Varastossa3960 pcs 300mV 5000Vrms 3µs, 5µs 80V 1.17V 80 mA 80% @ 5mA 400% @ 5mA - - Tube NEPOC DC -55°C ~ 100°C Through Hole Transistor 2 8-DIP (0.300", 7.62mm) 8-DIP 50mA
ILD2-X007T ILD2-X007T Vishay Semiconductor Opto Division OPTOISO 5.3KV 2CH TRANS 8SMD Varastossa43060 pcs 400mV 5300Vrms 2.6µs, 2.2µs 70V 1.25V 60 mA 50% @ 10mA 400% @ 10mA 1.1µs, 2.5µs ILD2 Tape & Reel (TR) - DC -40°C ~ 100°C Surface Mount Transistor 2 8-SMD, Gull Wing 8-SMD 50mA
H11AA1SM H11AA1SM onsemi OPTOISO 4.17KV TRANS W/BASE 6SMD Varastossa99300 pcs 400mV 4170Vrms - 30V 1.17V 60 mA 20% @ 10mA - - H11AA Tube - AC, DC -40°C ~ 100°C Surface Mount Transistor with Base 1 6-SMD, Gull Wing 6-SMD 50mA
HCPL0534R2 HCPL0534R2 Fairchild Semiconductor 1MBIT/S HIGH SPEED DUAL CHANNEL Varastossa47400 pcs - 2500Vrms - 20V 1.45V 25 mA 19% @ 16mA 50% @ 16mA 450ns, 300ns - Bulk - DC -40°C ~ 85°C Surface Mount Transistor 2 8-SOIC (0.154", 3.90mm Width) 8-SOIC 8mA
PC123AJ0000F PC123AJ0000F Sharp Microelectronics OPTOISOLATR 5KV TRANSISTOR 4-DIP Varastossa4470 pcs 200mV 5000Vrms 4µs, 3µs 70V 1.2V 50 mA 50% @ 5mA 150% @ 5mA - - Tube - DC -30°C ~ 100°C Through Hole Transistor 1 4-DIP (0.300", 7.62mm) 4-DIP 50mA
LOC111P-G LOC111P-G IXYS Integrated Circuits Division OPTOCOUPLER TRANSISTOR 8 FLTPK Varastossa4150 pcs - 3750Vrms - - - 100 mA 0.98% @ 2mA ~ 10mA 1.07% @ 2mA ~ 10mA - - Tube - DC - Surface Mount Photovoltaic, Linearized 1 8-SMD, Gull Wing 8-Flatpack -
MOC205R1VM MOC205R1VM onsemi OPTOISO 2.5KV TRANS W/BASE 8SOIC Varastossa4900 pcs 400mV 2500Vrms 3.2µs, 4.7µs 30V 1.15V 60 mA 40% @ 10mA 80% @ 10mA 7.5µs, 5.7µs MOC205 Tape & Reel (TR) - DC -40°C ~ 100°C Surface Mount Transistor with Base 1 8-SOIC (0.154", 3.90mm Width) 8-SOIC 150mA
PS2561DL-1Y-V-F3-A PS2561DL-1Y-V-F3-A Renesas Electronics America Inc OPTOISOLATOR 5KV TRANS 4SMD Varastossa154630 pcs 300mV 5000Vrms 3µs, 5µs 80V 1.2V 40 mA 50% @ 5mA 400% @ 5mA - PS2561 Tape & Reel (TR) NEPOC DC -55°C ~ 110°C Surface Mount Transistor 1 4-SMD, Gull Wing 4-SMD 50mA
H11AA814A H11AA814A onsemi OPTOISO 5.3KV TRANSISTOR 4DIP Varastossa4970 pcs 200mV 5300Vrms 2.4µs, 2.4µs 70V 1.2V 50 mA 50% @ 1mA 150% @ 1mA - H11A Tube - AC, DC -55°C ~ 100°C Through Hole Transistor 1 4-DIP (0.300", 7.62mm) 4-DIP 50mA
PS2561L-1-F3-A PS2561L-1-F3-A CEL OPTOISOLATOR 5KV TRANS 4SMD Varastossa5150 pcs 300mV 5000Vrms 3µs, 5µs 80V 1.17V 80 mA 80% @ 5mA 400% @ 5mA - - Tape & Reel (TR) NEPOC DC -55°C ~ 100°C Surface Mount Transistor 1 4-SMD, Gull Wing 4-SMD 50mA
CNY17-4-300E CNY17-4-300E Broadcom Limited OPTOISO 5KV TRANS W/BASE 6SMD Varastossa154360 pcs 300mV 5000Vrms 5µs, 5µs 70V 1.4V 60 mA 160% @ 10mA 320% @ 10mA - CNY17 Tube - DC -55°C ~ 100°C Surface Mount Transistor with Base 1 6-SMD, Gull Wing 6-SMD 150mA
TCET1109 TCET1109 Vishay Semiconductor Opto Division OPTOISOLATR 5KV TRANSISTOR 4-DIP Varastossa190000 pcs 300mV 5000Vrms 3µs, 4.7µs 70V 1.25V 60 mA 200% @ 5mA 400% @ 5mA 6µs, 5µs TCET1109 Tube - DC -40°C ~ 100°C Through Hole Transistor 1 4-DIP (0.300", 7.62mm) 4-DIP 50mA
FOD814300 FOD814300 onsemi OPTOISOLATOR 5KV TRANSISTOR 4DIP Varastossa203850 pcs 200mV 5000Vrms 4µs, 3µs 70V 1.2V 50 mA 20% @ 1mA 300% @ 1mA - FOD814 Tube - AC, DC -55°C ~ 105°C Through Hole Transistor 1 4-DIP (0.300", 7.62mm) 4-DIP 50mA
1234567...68
0 RFQ
Ostoskärry (0 Items)
Se on tyhjä.
Vertaa luettelo (0 Items)
Se on tyhjä.
Palaute

Palauttellasi on merkitystä!Allelco: ssä arvostamme käyttökokemusta ja pyrimme parantamaan sitä jatkuvasti.
Ole hyvä ja jaa kommenttisi kanssamme palautteen kautta, ja vastaamme nopeasti.
Kiitos, että valitsit Allelco.

Kohde
Sähköposti
Kommentit
Captcha
Vedä tai napsauta Voit ladata tiedoston
Lataa tiedosto
Tyypit: .xls, .xlsx, .doc, .docx, .jpg, .png ja .pdf.
Max -tiedoston koko: 10 Mt