| Electronic component: | Description: | Manuf. | Package | Pins | T°min | T°max | Datasheet |
|---|
| 1N4990 | Zener Voltage Regulator Diode | Microsemi-Corporation | E | - | - | - | 83 K |
| 1N4990US | Zener Voltage Regulator Diode | Microsemi-Corporation | - | - | - | - | 83 K |
| 2N4990 | Silicon unilateral switch, 30V, 175mA | distributor | - | 3 | - | - | 10 M |
| L4990 | PRIMARY CONTROLLER | SGS-Thomson-Microelectronics | - | - | - | - | 322 K |
| L4990A | PRIMARY CONTROLLER | SGS-Thomson-Microelectronics | - | - | - | - | 322 K |
| L4990D | PRIMARY CONTROLLER | SGS-Thomson-Microelectronics | - | - | - | - | 322 K |
| SAA4990H/V0 | Progressive scan-Zoom and Noise reduction IC (PROZONIC) | Philips-Semiconductors | SOT318 | - | - | - | 193 K |
| SAA4990H/V1 | Progressive scan-Zoom and Noise reduction IC (PROZONIC) | Philips-Semiconductors | SOT318 | - | - | - | 193 K |
| SAA4990H/V2 | Progressive scan-Zoom and Noise reduction IC (PROZONIC) | Philips-Semiconductors | SOT318 | - | - | - | 193 K |
| UPD4990AG | Calendar watch | NEC-Electronics-Inc- | - | - | - | - | 129 K |
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