Parts (Electronics): Difference between revisions
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| LM741 | | LM741 | ||
| Op Amp | | [https://en.wikipedia.org/wiki/Operational_amplifier Op Amp] | ||
| $1.20 / 10 | | $1.20 / 10 | ||
|- | |||
| [https://en.wikipedia.org/wiki/LM317 LM317] | |||
| Linear reg. | |||
| $1.30 / 10 | |||
|- | |||
| [https://en.wikipedia.org/wiki/78xx LM78xx] | |||
| Linear reg. | |||
| $1.30 / 10 | |||
| The xx is the voltage; 05,06,08,10,12,15,18,24 | |||
|} | |} | ||
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| TO-3 | | TO-3 | ||
| metal can, good for heat dissipation, cheap heat-sinks, shaped like a rounded diamond about 1"x1.5", leads are .43" apart | | metal can, good for heat dissipation, cheap heat-sinks, shaped like a rounded diamond about 1"x1.5", leads are .43" apart | ||
|- | |||
| TO-220 | |||
| metal tab heatsink | |||
|} | |} | ||
TO stands for transistor-outline. | TO stands for transistor-outline. | ||
Revision as of 18:06, 10 November 2015
IC
| Part | Name | Cost | Notes |
|---|---|---|---|
| 555/556 | Timer | $2.15 / 50 | |
| LM741 | Op Amp | $1.20 / 10 | |
| LM317 | Linear reg. | $1.30 / 10 | |
| LM78xx | Linear reg. | $1.30 / 10 | The xx is the voltage; 05,06,08,10,12,15,18,24 |
Microcontrollers
| Name | Cost | I/O | Flash | Speed | Peripherals | Notes |
|---|---|---|---|---|---|---|
| ATTINY85 | 60¢ | 6 | 8K | 2pwm, 2-8 timer, 1adc | 20MHz | Small dev boards are available for around $1.75 |
| ATMEGA8 | 90¢ | 23 | 8K | 16MHz | 3pwm, 2adc, 2-8/1-16 timer | Small dev boards are available for around $1.75 |
Modules
| Name | Cost | Description |
|---|---|---|
| Voltage Meter | $2.00 | 3x7seg LED, generally wide ranges of voltages |
| Buck Module | $2.50 | (4-40v) → (1.3-37v) @ 2A; includes led panel. Found a 9A version for $5, no display. |
Semiconductors
| Part | Cost | Limit | Part |
|---|---|---|---|
| PNP BJT (TO-92) | $1.43 / 100 | 40v 200mA | 2N3906 |
| NPN BJT (TO-92) | $1.20 / 100 | 60v 200mA | |
| NPN BJT (TO-92) | $1.20 / 100 | 60v 200mA |
Packages
| Name | Description |
|---|---|
| TO-92 | Small black, semi circle, 3 leads from the bottom |
| DIP | dual in-line pin, pins are 1/10" apart, 1/4" wide |
| TO-3 | metal can, good for heat dissipation, cheap heat-sinks, shaped like a rounded diamond about 1"x1.5", leads are .43" apart |
| TO-220 | metal tab heatsink |
TO stands for transistor-outline.