Semiconductor Components Labeling
Any semiconductor components have a label.
However, what does the label on the component mean with
regard to its function...
Pro Electron
The Pro-Electron standard
is used by European manufacturers .
It consists of two letters and number.
The first letter indicates the
material used...
| 1. Letter |
Material |
| A |
Germanium |
| B |
Silicon |
| C |
Gallium-Arsenide, Selenium |
|
The second letter indicates the application area...
| 2. Letter |
Application |
Example |
| A |
Small Signal Diode |
BA121 |
| C |
Small Signal Transistor |
BC 547, BC557 |
| D |
Low Frequency Power Transistor |
|
| E |
Tunnel Diode |
|
| F |
High Frequency Small Signal Transistor (FET) |
BF 256 |
| P |
Detector (Photodiode, Phototransistor) |
BPW 40 |
| R |
Small Signal-DIAC, -TRIAC, -Thyristor |
BR 101 |
| S |
Small Signal Transistor bipolar or MOSFET |
BS 250 |
| T |
Power-DIAC, -TRIAC, -Thyristor |
BT 136 |
| Z |
Zener Diode |
BZY 91 |
|
The label is followed by a number and/or letters.
These are freely assigned by the manufacturer.
JEDEC
The JEDEC standard is used by
American manufacturer.
A JEDEC component starts with a prefix,
followed by a number,
which is freely assigned by the manufacturer...
| Prefix |
Type |
Example |
| 1N |
2-Terminal Device (Diode) |
1N4001 |
| 2N |
3-Terminal Device (Transistor) |
2N2222 |
|
JIS
The JIS standard is used by Japanese manufacturer.
A JIS component starts with a prefix 2S.
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