BC557 NPN Transistors
The BC557C are a good general purpose NPN transistor, for low to moderate power amplification and switching.
$0.30
Out of stock
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Description
BC557 NPN Transistors
- Collector-Emitter Voltage: 45V
- Emitter-Base Voltage: 5V
- Collector Current: 100mA
- Power dissipation: 500 mW
- Collector-Base Voltage: 50V
- Operating and Storage Junction Temperature Range -55 to +150 °C
- Package –Â TO-92
Is a PNP transistor hence the collector and emitter will be closed (Forward biased) when the base pin is held at the ground and will be opened (Reverse biased) when a signal is provided to base pin.
What are PNP and NPN transistors?
NPN and PNP refer to the arrangement of the pieces that make up the transistor. The practical result is the direction of the current flow. … An NPN transistor has a piece of P-type silicon (the base) sandwiched between two pieces of N-type (the collector and emitter). In a PNP transistor, the type of the layers are reversed.
Which is better PNP or NPN?
An NPN transistor has electrons as majority charge carriers whereas the PNP transistor has holes as the majority charge carrier. The mobility of electrons is better than the mobility of holes. … mobility of electrons is more than the hole, so as a result, the NPN transistor is faster than pnp that’s why they are preferred.
What does an NPN transistor do?
The NPN transistor is designed to pass electrons from the emitter to the collector (so conventional current flows from collector to emitter). The emitter “emits” electrons into the base, which controls the number of electrons the emitter emits
What are the basic types of transistor?
There are two types of standard (bipolar junction) transistors, NPN and PNP, with different circuit symbols as shown. …
The leads are labelled base (B), collector (C) and emitter (E). …
In addition to bipolar junction transistors, there are field-effect transistors which are usually referred to as FETs.
Development Resources: demo codes, schematics, datasheets, etc
Reference for Arduino and reference to all matters
Notes:
1. There may be slight size deviations due to manual measurement, different measuring methods and tools.
2. The picture may not reflect the actual colour of the item because of different photographing light, angle and display monitor.
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| Weight | 0.001 kg |
|---|---|
| Dimensions | 1 × 0.5 × 0.5 cm |
Product Applications
NPN transistors are mainly used in switching applications. Used in amplifying circuit applications.
Current Product Support
| SKU | Product | Type | Download/View |
|---|---|---|---|
| TS-C085-1 | BC557 NPN Transistors - BC557 | Datasheet | Download |
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