User manual

tams elektronik
English FCS modules
which limits the current and prevents failure. With circuits designed for
the connection of LEDs the series resistors are often integrated on the
circuit board.
Transistors
Transistors are current amplifiers which convert low signals into
stronger ones. There are several types in different package forms
available. The type designation is printed on the component.
Transistors for a low power rating (e.g. BC types) have a
package in form of a half zylinder (SOT-package). The three
pins of bipolar transistors (e.g. BC types) are called basis,
emitter and collector (abbreviated with the letters B, E, C in
the circuit diagram).
Reed contacts (SRK)
Depending on their version reed contacts fulfill the task of a
closer or a change-over switch. They respond to a magnetic
field, thus making possible contactless switching operations.
They consist of a glass bulb filled with a predective gas.
Sealed in the glass bulb are two or three reeds made of a
magnetic material.
When bending the legs of the glass bulb they can be easily damaged
through mechanical strain.
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