Below is the Bill of Materials for the Fuel Gauge 1.0 board:
Ref(s) Value RS Components P/N
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C1,C2 1nF 100Vdc Multi-layer Ceramic 10% 699-5109
C3 1uF 100Vdc Polyester 10% 126-2282
C4 22uF Aluminium Electrolytic 35Vdc 715-2729
C5 47uF 6.3V Radial Tantalum 868-5690
C6 100nF 50Vdc Multi-layer Ceramic 10% 538-1310
D1,D2,D4,D6 1N4001 628-8931
D3 5V1 1W Zener Diode 166-2747
D5 12V 1W Zener Diode 687-5459
D7 22V 1.3W Zener Diode 813-3915
J1 Molex KK 254 7395, 2.54mm Pitch, 10 Way 173-2994
1 Row, Right Angle PCB Header
J2 6 Way 1 Row 2.54mm Pitch header
Q1 BC547 NPN Transistor TO-92 671-1113
Q2 PHB55N03LT N-MOSFET transistor TO-263
R1 120R 1/4W 1% thin-film resistor
R2 2K2 1/4W 1% thin-film resistor
R3 1K 1/4W 1% thin-film resistor
R4 10R 1/4W 1% thin-film resistor
R5 4K7 1/4W 1% thin-film resistor
R6 10K 1/4W 1% thin-film resistor
RV1 Panasonic ERZV05D220 22V MOV 226-7817
U1 LM317L 100mA Linear regulator TO92 661-6796
U2 LM7805 700mA Linear Regulator TO220 785-6762
U3 Microchip PIC12F1840-I/P DIP-8 743-2697
Notes:
- Q2 may be hard to find. Any power N-channel MOSFET in TO-263 package should suffice. I used a device recovered from a PC motherboard as that what I had available.