| KA2803B_NL Manufacturer | Fairchild Semiconductor |
| KA2803B_NL Description | Earth Leakage Detector |
| KA2803B_NL Categories | |
| KA2803B_NL Datasheet (PDF) | |
| KA2803B_NL Features | - Low power consumption PD =5mW, 100V/200V
- Built-in voltage regulator
- High gain differential amplifier
- 0.4mA output current pulse to trigger SCR's
- Low external part count
- DIP package (8-DIP), high packing density
- High noise immunity, large surge margin
- Super temperature characteristic of input sensitivity
- Wide operating temperature range (TA = - 25°C ~ +80°C)
- Operation from 12 to 20V Input
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| KA2803B_NL Description | The KA2803B is designed for use in earth leakage circuit interrupters, for stable operation of the AC line in breakers. The input of the differential amplifier is connected to the secondary coil of ZCT (Zero Current Transformer). The amplified output of differential amplifier is integrated at external capacitor to gain adequate time delay that is specified in KSC4613. The level comparator generates high level when earth leakage current is greater than the fixed level. |
| KA2803B_NL Parameters | | Product status | Full production | | Package type | DIP | | Leads | 8 | | Packing method | RAIL | | Pricing* | $0.449 |
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| Related or Similar Components | KA2803B KA2803BD KA2803BDTF KA2807 KA2807D KA2807DTF |