| Electronic component: | Description: | Manuf. | Package | Pins | T°min | T°max | Datasheet |
|---|
| LM139AF-MCP | Low Power Low Offset Voltage Quad Comparator | distributor | - | - | -40°C | 125°C | 400 K |
| LM339AF | Quad voltage comparator | Philips-Semiconductors | SOT73 | - | - | - | 75 K |
| MC74HC139AF | Dual 1-of-4 Decoder/Demultiplexer | ON-Semiconductor | - | - | - | - | 138 K |
| MC74HC139AFEL | Dual 1-of-4 Decoder/Demultiplexer | ON-Semiconductor | - | - | - | - | 138 K |
| MC74HC139AFL1 | Dual 1-of-4 Decoder/Demultiplexer | ON-Semiconductor | - | - | - | - | 138 K |
| MC74HC139AFL2 | Dual 1-of-4 Decoder/Demultiplexer | ON-Semiconductor | - | - | - | - | 138 K |
| MC74HC139AFR1 | Dual 1-of-4 Decoder/Demultiplexer | ON-Semiconductor | - | - | - | - | 138 K |
| MC74HC139AFR2 | Dual 1-of-4 Decoder/Demultiplexer | ON-Semiconductor | - | - | - | - | 138 K |
| R1221N39AF-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 3.9V. Detector threshold (-Vdet) 3.0V. Oscillator frequency 500kHz | distributor | - | 6 | -40°C | 85°C | 218 K |
| SNJ54LS139AFK | DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS | Texas-Instruments | FK | 20 | -55°C | 125°C | 239 K |
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