Req'd | ID | Industry Part | Description | Package | Digi-key Part * |
---|---|---|---|---|---|
1 | U1 | KMZ51 | Magneto-resistive bridge sensor | SOIC-8 | 568-2425-1 $6.46 |
1 | U2 | LM358 | Dual Op-amp | DIP-8 | 296-1395-5 $0.45 |
1 | U3 | LM78L05 | Voltage regulator, 5V | TO-92 | MC78L05BP-APMSCT $0.20 |
1-opt | U4 | CD4011 | Quad NAND (latches, logic) | DIP-14 | CD4011BCN $0.50 |
1-opt | C1 | .1 µF | Capacitor (latch startup) | Radial | P4924 $0.15 |
1 | C2 | 1 µF | Capacitor, tantalum (reset) | Radial | 478-1833 $0.46 |
1-opt | C3 | .47 µF | Cap, tant. (G-switch debounce) | Radial | 478-1900 $0.46 |
1 | C4 | .33 µF | Cap, tant. (regulator filter) | Radial | 478-1883 $0.46 |
1 | C5 | .01 µF | Cap (regulator filter) | Radial | P4922 $0.13 |
1-opt | C6 | 1000 µF 10V or 16V | Cap, electrolytic, .2" pitch, .4" diam | Radial | 565-1041 (16V) $0.39 |
1 | R1 | 1 kΩ | Resistor | 1/8 Watt | |
1 | R2 | ~2 MΩ | Calibration resistor | 1/8 Watt | |
1 | R3 | 470 Ω | Resistor | 1/8 Watt | |
1-opt | R4 | 100 kΩ | Resistor | 1/8 Watt | |
1-opt | R5 | 1 MΩ | Resistor | 1/8 Watt | |
1-opt | R6 | 10 MΩ | Resistor | 1/8 Watt | |
1 | R7 | 1 MΩ | Resistor | 1/8 Watt | |
1 | D1 | LED | High-efficiency light emitting diode | T1 | 516-1302 $0.42 |
1 | SW1 | SPST-NO | Momentary switch (reset) | 4.5 x 6.5mm 4-pin | SW405 $0.23 |
1 | J1 | - | Terminal block, 4 pos | .1" pitch | 277-1275 $2.30 |
Terminal block, 6 pos | 277-1277 $3.44 | ||||
1 | Q1 | IRFD110 | FET power transistor | DIP-4 | IRFD110PBF $1.60 |
ZVN3306A | FET power transistor | TO-92 | ZVN3306A $0.84 |