A transistor is a semiconductor electronic device that is used to amplify or switch electronic signals and electrical power. It is composed of semiconductor material with at least three terminals, for connection to an external circuit.
Tomark is an authorised distributor for many transistor manufacturers including Motorola, Zetex, Philips, ON Semi, IR, Rohm, NPN, PNP and much more. You can buy many types of transistors at Tomark online. Browse our large selection of transistors below.
Showing all 56 results
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Sale!
BSS123 MOSFET Transistor, N Channel, 170 mA, 100 V, 1.2 ohm, 10 V, 1.7 V
Category: TRANSISTORAvailability: 36277 in stock
Original price was: $ 0.03.$ 0.01Current price is: $ 0.01. -
2SC559B
Category: TRANSISTORAvailability: 200 in stock
$ 0.05 -
BUP307
Category: TRANSISTORAvailability: 1258 in stock
$ 9.44 -
SFH610A-4 Transistor Output Optocoupler
Category: TRANSISTORAvailability: 364 in stock
$ 0.20 -
BC846BPN Bipolar Transistors – BJT – Nexperia
Category: TRANSISTORAvailability: 72000 in stock
$ 0.05 -
4N35-500E – Transistor Output Optocouplers 3550 Vrms 60mA
Category: TRANSISTORAvailability: 5000 in stock
$ 0.11 -
TLP290-BL-TP.SE – Optocoupler AC/DC-IN 1-CH Transistor DC-OUT 4-Pin SO T/R
Category: TRANSISTORAvailability: 784 in stock
$ 0.09 -
BC857A-7-F – Bipolar Transistors – BJT PNP BIPOLAR
Category: TRANSISTOR Uncategorized,Availability: 1180 in stock
$ 0.09 -
BC847B – Bipolar Transistors – BJT BJT, SOT-23, 45V, 100mA, NPN
Category: TRANSISTORAvailability: 1280 in stock
$ 0.05 -
MOC206M – Transistor Output Optocouplers SO-8 PHOTO TRANS
Category: TRANSISTORAvailability: 88 in stock
$ 0.57 -
PBSS4140V – Trans GP BJT NPN 40V 1A 6-Pin SOT-666 T/R
Category: TRANSISTORAvailability: 3000 in stock
$ 0.03 -
4N35 – Transistor Output Optocouplers Phototransistor Out Single CTR>100%
Category: TRANSISTORAvailability: 250 in stock
$ 0.57 -
AUIRGS30B60K – IGBT Transistors 600V AUTO ULTRAFAST 10-30 KHZ IGBT
Category: TRANSISTORAvailability: 1050 in stock
$ 47.18 -
AIKQ120N60CTXKSA1- IGBT Transistors DISCRETES
Category: TRANSISTORAvailability: 960 in stock
$ 9.25 -
MPSA06 – Bipolar Transistors – BJT NPN Transistor Medium Power
Category: TRANSISTORAvailability: 14070 in stock
$ 0.06 -
BC869 – Bipolar (BJT) Single Transistor, PNP, 20 V, 1 A, 1.35 W, SOT-89, Surface Mount
Category: TRANSISTORAvailability: 936 in stock
$ 0.09 -
JANTXV2N5153U3 – Bipolar Transistors – BJT Power BJT
Category: TRANSISTORAvailability: 10 in stock
$ 94.36 -
Sale!
FHX14LPT/101
Category: TRANSISTORAvailability: 1212 in stock
Original price was: $ 6.42.$ 3.77Current price is: $ 3.77. -
SI4425DY Transistor MOSFET P-Channel 30V 11A 8-Pin SOIC
Category: TRANSISTORAvailability: 10 in stock
$ 1.50 -
IRFL014 Trans MOSFET N-CH 60V 2.7A 4-Pin(3+Tab) SOT-223
Category: TRANSISTORAvailability: 80 in stock
$ 0.71 -
SI9953DY MOSFET 20V 2.3A 2W
Category: TRANSISTORAvailability: 92 in stock
$ 0.47 -
BCY87 Transistor Dual SI-N 40V 30mA 150mW TO-71
Category: TRANSISTORAvailability: 105 in stock
$ 3.68 -
SI9948AEY MOSFET 60V 2.6A 2.4W
Category: TRANSISTORAvailability: 50 in stock
$ 0.38 -
IRFR9120 Power MOSFET, P Channel, 100 V, 6.6 A, 0.48 ohm
Category: TRANSISTORAvailability: 22 in stock
$ 1.42 -
FCP16N60N N-Channel MOSFET, 16 A, 600 V, 3-Pin TO-220
Category: TRANSISTORAvailability: 3500 in stock
$ 1.13 -
IRFP150 Power MOSFET N-channel TO-247AC 100 V 41 A
Category: TRANSISTORAvailability: 22 in stock
$ 2.36 -
BD436 Trans GP BJT PNP 32V 4A 36000mW 3-Pin(3+Tab) SOT-32 Tube
Category: TRANSISTORAvailability: 5162 in stock
$ 0.09 -
2SK2761 TR MOSFET-N 2SK2761 BOITIER TO-220ISO
Category: TRANSISTORAvailability: 200 in stock
$ 0.94 -
SY4942DY-T1-E3 MOSFET P-CH 40V 2.3A SOT23-3, P-Channel 40V 2.3A (Ta) 750mW (Ta) Surface Mount SOT-23-3 (TO-236)
Category: Semiconductor TRANSISTOR,Availability: 4953 in stock
$ 1.42 -
T4700D NOS Transistor 2 Lead NNB
Category: Semiconductor TRANSISTOR,Availability: 13 in stock
$ 14.15 -
IRFH5300TRPBF Single N-Channel 30 V 2.1 mOhm 120 nC HEXFET« Power Mosfet – PQFN 5 x 6 mm 0- SOLD
Category: TRANSISTORAvailability: in stock
$ 0.00 Order -
2SB337 PNP GERM TO3 ALLOY
Category: TRANSISTORAvailability: 18 in stock
$ 8.92 -
JANTX2N3027 SCR 30V 250MA TO18
Category: THYRISTOR TRANSISTOR,Availability: 17 in stock
$ 47.18 -
FMMT617 Bipolar (BJT) Single Transistor, NPN, 15 V, 3 A, 625 mW, SOT-23, Surface Mount
Category: TRANSISTORAvailability: 2750 in stock
$ 0.11 -
BSX63-10 NPN SILICON PLANAR EPITAXIAL TRANSISTORS
Category: TRANSISTORAvailability: 40 in stock
$ 4.34 -
Sale!
LF111H NPN Darlington Transistor
Category: TRANSISTORAvailability: 173 in stock
Original price was: $ 67.94.$ 37.74Current price is: $ 37.74. -
2N6802
Category: TRANSISTORAvailability: 650 in stock
$ 7.74 -
IRLML5103TRPBF
Category: TRANSISTORAvailability: 2900 in stock
$ 0.04 -
IRFZ44N MOSFET N-CH 55V 49A TO-220AB
Category: TRANSISTORAvailability: 21 in stock
$ 0.30 -
EL7212CS IC GATE DRVR LOW-SIDE 8SOIC
Category: TRANSISTORAvailability: 93 in stock
$ 0.57 -
HIP4082IP Gate Drivers 80V H BRDG FET DRVR
Category: TRANSISTORAvailability: 50 in stock
$ 1.65 -
F7416 Transistors
Category: TRANSISTORAvailability: 630 in stock
$ 29.03 -
TLP521G Isocom, TLP521G Optocoupler
Category: TRANSISTORAvailability: 117 in stock
$ 1.13 -
BCW33RTA Bipolar Transistors – BJT
Category: TRANSISTORAvailability: 6000 in stock
$ 0.24 -
BUZ385
Category: TRANSISTORAvailability: 150 in stock
$ 0.24 -
BSH202 MOSFET P-CH 30V 520MA SOT23
Category: TRANSISTORAvailability: 2690 in stock
$ 0.08 -
BF550 Trans GP BJT PNP 40V 0.025A 3-Pin TO-236AB T/R vpe: 3000/tr/smd
Category: TRANSISTORAvailability: 1655 in stock
$ 0.03 -
2N7002LT1 TRANSISTOR MOSFET
Category: TRANSISTORAvailability: 2360 in stock
$ 0.02 -
BC327 Trans GP BJT PNP 45V 0.8A 3-Pin TO-92 Bulk
Category: TRANSISTORAvailability: 2660 in stock
$ 0.04 -
2SD2226KT146V Trans GP BJT NPN 50V 0.15A 3-Pin SMT T/R
Category: TRANSISTORAvailability: 2820 in stock
$ 0.05 -
BC337-25
Category: TRANSISTORAvailability: 1180 in stock
$ 0.02 -
PMBT3906,215 Switching Transistor – SOT-23
Category: TRANSISTORAvailability: 36000 in stock
$ 0.01 -
BCP69-25
Category: TRANSISTORAvailability: 55 in stock
$ 0.05 -
FMMT495TA FMMT495 Series NPN 1 A 150 V SMT Silicon Medium Power Transistor – SOT-23
Category: TRANSISTORAvailability: 2673 in stock
$ 0.05 -
BC846ALT1G – TRANS NPN 65V 0.1A SOT23
Category: TRANSISTORAvailability: 81197 in stock
$ 0.01 -
2SC3928A-T112-1R Transistors(BJT) – Single
Category: TRANSISTORAvailability: 7225 in stock
$ 0.03