WAYON WT2222A NPN Transistor SOT-23 | 40V 600mA Switching Transistor
The WT2222A NPN Silicon Transistor from WAYON Corporation is a high-performance transistor designed for medium power amplification and fast switching applications. Built using epitaxial planar die construction, the WT2222A offers excellent electrical performance, stable gain characteristics, and reliable operation across a wide range of electronic circuits.
With a collector current up to 600mA and collector-emitter voltage of 40V, this transistor is widely used in consumer electronics, industrial control systems, signal amplification circuits, and switching power applications.
The device comes in a compact SOT-23 surface-mount package, making it ideal for modern PCB designs where space efficiency and high reliability are essential.

Electrical Characteristics
Package Information
Package Type: SOT-23
Mounting Type: Surface Mount
Marking: Device Marking Code
Compliance: RoHS & Halogen Free
Typical Applications
The WT2222A transistor is suitable for a wide range of electronic applications:
·Signal amplification circuits
·Switching circuits
·Consumer electronics
·Industrial control systems
·Communication equipment
·Power management circuits
Its high switching speed and stable gain make it an excellent choice for designers looking for a cost-effective and reliable transistor solution.
Related models
| Part No. | Package | Type | PC(W) | IC(A) | BVCBO(V) | BVCEO(V) | BVEBO(V) | Hfe(Min.) | Hfe(Max.) | Hfe(Condition) | VCE(sat)(V) | VCE(sat)(Condition) |
| WT2222A | SOT-23 | NPN | 0.3 | 0.6 | 75 | 40 | 6 | 200 | 300 | 1mA / 5V | 0.3 | 150mA / 15mA |
| WT2712 | SOT-23 | NPN | 0.15 | 0.15 | 60 | 50 | 5 | 200 | 400 | 2mA / 6V | 0.25 | 100mA /10mA |
| WT3904 | SOT-23 | NPN | 0.235 | 0.2 | 60 | 40 | 6 | 100 | 300 | 10mA / 1V | 0.3 | 50mA / 5mA |
| WT5551 | SOT-23 | NPN | 0.3 | 0.6 | 180 | 160 | 6 | 100 | 200 | 1mA / 5V | 0.15 | 10mA / 1mA |
| WT8050 | SOT-23 | NPN | 0.3 | 0.8 | 40 | 25 | 5 | 200 | 350 | 50mA / 1V | 0.6 | 500mA / 50mA |
| WT9013 | SOT-23 | NPN | 0.3 | 0.5 | 40 | 25 | 5 | 200 | 350 | 1mA / 5V | 0.6 | 500mA / 50mA |
| WT9014 | SOT-23 | NPN | 0.2 | 0.1 | 50 | 45 | 5 | 200 | 450 | 1mA / 5V | 0.3 | 100mA / 5mA |
| WT817 | SOT-23 | NPN | 0.25 | 0.5 | 50 | 45 | 5 | 160 | 400 | 100mA / 1V | 0.7 | 500mA / 50mA |
| WT846B | SOT-23 | NPN | 0.2 | 0.1 | 80 | 65 | 6 | 200 | 450 | 2mA / 5V | 0.5 | 100mA / 5mA |
| WT847B | SOT-23 | NPN | 0.2 | 0.1 | 50 | 45 | 6 | 200 | 450 | 2mA / 5V | 0.5 | 100mA / 5mA |
| WTS8050 | SOT-23 | NPN | 0.3 | 1.5 | 40 | 25 | 5 | 200 | 350 | 100mA / 1V | 0.5 | 800mA / 80mA |
| WT4401 | SOT-23 | NPN | 0.3 | 0.6 | 40 | 60 | 6 | 100 | 300 | 150mA / 1V | 0.4 | 150mA / 15mA |
| WT2907A | SOT-23 | PNP | 0.25 | -0.6 | -60 | -60 | -5 | 100 | 300 | 1mA / 5V | -0.4 | 150mA / 15mA |
| WT3906 | SOT-23 | PNP | 0.2 | -0.2 | -40 | -40 | -5 | 100 | 300 | 1mA / 5V | -0.3 | 50mA / 5mA |
| WT5401 | SOT-23 | PNP | 0.3 | -0.6 | -160 | -150 | -5 | 100 | 300 | 1mA / 5V | -0.2 | 10mA / 1mA |
| WT8550 | SOT-23 | PNP | 0.3 | -0.8 | -40 | -25 | -5 | 160 | 320 | 50mA / 1V | -0.6 | 500mA / 50mA |
| WT9012 | SOT-23 | PNP | 0.3 | -0.5 | -40 | -25 | -5 | 200 | 350 | 1mA / 5V | -0.6 | 500mA / 50mA |
| WT807 | SOT-23 | PNP | 0.3 | -0.5 | -50 | -45 | -5 | 160 | 400 | 100mA / 1V | -0.7 | 500mA / 50mA |
| WT807C | SOT-23 | PNP | 0.3 | -0.5 | -50 | -45 | -5 | 250 | 600 | 100mA / 1V | -0.7 | 500mA / 50mA |
| WT856B | SOT-23 | PNP | 0.2 | -0.1 | -80 | -65 | -5 | 220 | 475 | 2mA / 5V | -0.5 | 100mA / 5mA |
| WT857B | SOT-23 | PNP | 0.2 | -0.1 | -50 | -45 | -5 | 220 | 475 | 2mA / 5V | -0.5 | 100mA / 5mA |
| WT858B | SOT-23 | PNP | 0.2 | -0.1 | -30 | -30 | -5 | 220 | 475 | 2mA / 5V | -0.5 | 100mA / 5mA |
| WTS8550 | SOT-23 | PNP | 0.3 | -1.5 | -40 | -25 | -5 | 200 | 350 | 100mA / 1V | -0.5 | 800mA / 80mA |
| WT4403 | SOT-23 | PNP | 0.3 | -0.6 | -40 | -40 | -5 | 100 | 300 | 150mA / 2V | -0.4 | 150mA / 15mA |
| WT847BW | SOT-323 | NPN | 0.2 | 0.1 | 50 | 45 | 6 | 200 | 450 | 2mA / 5V | 0.6 | 100mA / 5mA |
| WT817G | SOT-323 | NPN | 0.25 | 0.5 | 50 | 45 | 5 | 160 | 400 | 100mA / 1V | 1.2 | 500mA / 50mA |
| WT3904DW | SOT-363 | Dual NPN | 0.2 | 0.2 | 60 | 40 | 5 | 100 | 300 | 10mA / 1V | 0.3 | 50mA / 5mA |
| WT3906DW | SOT-363 | Dual PNP | 0.2 | -0.2 | -40 | -40 | -5 | 100 | 300 | 10mA / 1V | -0.4 | 50mA / 5mA |
| WT3946DW | SOT-363 | NPN | 0.2 | 0.2 | 60 | 40 | 5 | 100 | 300 | 10mA / 1V | 0.3 | 50mA / 5mA |
| WT3946DW | SOT-363 | PNP | 0.2 | -0.2 | -40 | -40 | -5 | 100 | 300 | 10mA / 1V | -0.4 | 50mA / 5mA |
| WT3904T | SOT-523 | NPN | 0.15 | 0.2 | 60 | 40 | 6 | 100 | 300 | 10mA / 1V | 0.3 | 50mA / 5mA |
| WT2222AT | SOT-523 | NPN | 0.15 | 0.6 | 75 | 40 | 6 | 100 | 300 | 150mA / 10V | 0.3 | 150mA / 15mA |
| WT3906T | SOT-523 | PNP | 0.15 | -0.2 | -40 | -40 | -5 | 100 | 300 | 10mA / 1V | -0.4 | 50mA / 5mA |
| WT3904H | SOT-723 | NPN | 0.1 | 0.2 | 60 | 40 | 6 | 100 | 300 | 10mA / 1V | 0.3 | 50mA / 5mA |
| WT3906H | SOT-723 | PNP | 0.1 | -0.2 | -40 | -40 | -5 | 100 | 300 | 10mA / 1V | -0.3 | 50mA / 5mA |
| WT5551N | SOT-223 | NPN | 1 | 0.6 | 180 | 160 | 6 | 80 | 250 | 10mA / 5V | 0.2 | 50mA / 5mA |
| WT955 | SOT-223 | PNP | 3 | -4 | -180 | -140 | -6 | 100 | 300 | 1A / 5V | -0.15 | 1A / 100mA |
| WT772 | SOT-89 | PNP | 0.5 | -3 | -40 | -30 | -6 | 200 | 400 | 1A / 2V | -0.45 | 2A /200mA |
| WT5401J | SOT-89 | PNP | 0.5 | -0.5 | -160 | -150 | -5 | 60 | 300 | 10mA / 5V | -0.2 | 10mA / 1mA |
| WT3904F | DFN1006-3L | NPN | 0.1 | 0.2 | 60 | 40 | 6 | 100 | 300 | 10mA / 1V | 0.3 | 50mA / 5mA |
| WT3906F | DFN1006-3L | PNP | 0.1 | -0.2 | -40 | -40 | -5 | 100 | 300 | 10mA / 1V | -0.25 | 10mA / 1mA |
| WT491 | SOT-23 | NPN | 0.5 | 1 | 80 | 60 | 7 | 100 | 300 | 500mA / 5V | 0.3 | 1A / 100mA |
| WTA56 | SOT-23 | PNP | 0.31 | -0.5 | -80 | -80 | -4 | 100 | 400 | 10mA / 1V | -0.25 | 100mA / 10mA |
| WTA06 | SOT-23 | NPN | 0.31 | 0.5 | 80 | 80 | 4 | 100 | 400 | 10mA / 1V | 0.25 | 100mA / 10mA |
| WT2222AH | SOT-723 | NPN | 0.3 | 0.6 | 75 | 40 | 6 | 200 | 300 | 1mA / 5V | 0.3 | 150mA / 15mA |
| WT9110 | SOT-89 | PNP | 0.5 | -1 | -100 | -80 | -5 | 100 | 250 | 150mA / 2V | -0.5 | 500mA / 50mA |
| WT8110 | SOT-89 | NPN | 0.5 | 1 | 100 | 80 | 5 | 100 | 250 | 150mA / 2V | 0.5 | 500mA / 50mA |
| WT5551DW | SOT-363 | Dual NPN | 0.3 | 0.6 | 180 | 160 | 6 | 100 | 200 | 1mA / 5V | 0.15 | 10mA / 1mA |
| WT5401DW | SOT-363 | Dual PNP | 0.3 | -0.6 | -160 | -150 | -5 | 100 | 300 | 1mA / 5V | -0.2 | 10mA / 1mA |
| WT3904G | SOT-323 | NPN | 0.3 | 0.2 | 60 | 40 | 6 | 100 | 300 | 10mA / 1V | 0.3 | 50mA / 5mA |
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