| Electronic component: | Description: | Manuf. | Package | Pins | T°min | T°max | Datasheet |
|---|
| 1N5257B | 500 milliwatts glass silicon zener diode, zener voltage 33V | Motorola | - | 2 | -65°C | 200°C | 424 K |
| LM2578AN | Switching regulator | distributor | DIP | 8 | -40°C | 85°C | 336 K |
| LM2578AN | Switching regulator | distributor | DIP | 8 | -40°C | 85°C | 336 K |
| SL74HC257D | Quad 2-input data selector/multiplexer with 3-state outputs. High-performance silicon-gate CMOS. | distributor | SOIC | 16 | -55°C | 125°C | 47 K |
| SL74HC257N | Quad 2-input data selector/multiplexer with 3-state outputs. High-performance silicon-gate CMOS. | distributor | DIP | 16 | -55°C | 125°C | 47 K |
| UVP-1257AA | 4 x 7 DOT matrix LED display | distributor | - | 20 | -35°C | 85°C | 129 K |
| UVP-3257AA | 5 x 7 DOT matrix LED display | distributor | - | 28 | -35°C | 85°C | 93 K |
| UVP-4257AA | 5 x 7 DOT matrix LED display | distributor | - | 28 | -35°C | 85°C | 98 K |
| UVP-4257AE | 5 x 7 DOT matrix LED display | distributor | - | 28 | -35°C | 85°C | 98 K |
| UVP-4257AG | 5 x 7 DOT matrix LED display | distributor | - | 28 | -35°C | 85°C | 98 K |
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