| TYPE | DESCRIPTION |
|---|
| Mounting Style | Through Hole |
| Number of Pins | 8 Pin |
| Voltage Rating (DC) | 30.0 V |
| Capacitance | 3.00 pF |
| Case/Package | DIP |
| Number of Channels | 6 Channel |
| TYPE | DESCRIPTION |
|---|
| Packaging | Tube, Bulk |
| Size-Length | 10.2 mm |
| Size-Width | 8.25 mm |
| Size-Height | 4.95 mm |
The SP721 is an array of SCR/Diode bipolar structures for ESD and over-voltage protection to sensitive input circuits. The SP721 has 2 protection SCR/Diode structures per input. There are a total of 6 available inputs that can be used to protect up to 6 external signal or bus lines. Over voltage protection is from the IN (Pins 1-3 and Pins 5-7) to V+ or V-.
●The SCR structures are designed for fast triggering at a threshold of one +VBE diode threshold above V+ (Pin 8) or a –VBE diode threshold below V- (Pin 4). From an IN input, a clamp to V+ is activated if a transient pulse causes the input to be increased to a voltage level greater than one VBE above V+. A similar clamp to V- is activated if a negative pulse, one VBE less than V-, is applied to an IN input.
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