Qty |
Reference |
Value |
Manufacturer |
Part Number |
Price |
|
5 |
C1-C5 |
See capacitor notes below. 10F 2.7V .075 ohm ESR, 5mm lead spacing |
Maxwell Technologies Inc |
BCAP0010 P270 T01 |
2.71 |
13.55 |
1 |
C6 |
10uF 25V X7R 5 mm lead spacing |
TDK |
FK26X7R1E106K |
0.63 |
0.63 |
3 |
C7-C9 |
22uF 10V X7R 5 mm lead spacing |
TDK |
FK20X7R1A226M |
0.63 |
1.89 |
8 |
C10-C18 |
.1uF X7R |
Vishay |
K104K15X7RF53L2 |
0.10 |
0.80 |
2 |
D1,D3 |
1N5820 20V, 3A, .5V, Typ .25V at .5A |
Fairchild Semiconductor |
1N5820 |
0.49 |
0.98 |
1 |
D2 |
Red LED T-1 3/4 |
Kingbright |
WP7113LSRD |
0.17 |
0.17 |
1 |
F1 |
3A fuse |
Littelfuse |
0251003.MXL |
0.71 |
0.71 |
REF |
J1 |
20 pin edge connector |
|
|
|
|
REF |
J2 |
34 pin edge connector |
|
|
|
|
3 |
J3,J6,J7 |
20 pin .1” dual row .23” mating length, .095” tail length .030uin GXT plating |
FCI |
67996-220HLF |
0.70 |
2.10 |
Alt |
Recommended for J7 |
Shrouded version of above |
3M |
D2520-6002-AR |
1.89 |
|
1 |
J4 |
34 pin .1” dual row .23” mating length, .095” tail length .030uin GXT plating |
FCI |
67996-134HLF |
1.43 |
1.43 |
Alt |
|
10uin gold |
Sullins |
PBC17DAAN |
2.55 |
|
Alt |
|
Shrouded version of above |
3M |
D2534-6002-AR |
1.80 |
|
1 |
J5 |
Right angle drive power connector |
Molex |
15-24-4441 |
1.24 |
1.24 |
2 |
J8,J9 |
46 pin .1” dual row .23” mating length, .095” tail length. 50 Pin purchased since common and extra gives P1 and P4. Some distributors sell 46 pin. .030uin GXT plating |
FCI |
67996-150HLF |
1.53 |
3.06 |
Alt |
|
10uin gold |
Sullins |
PBC25DAAN |
3.41 |
|
1 |
P1 |
2 pin .1” .23” mating length, .095” tail length |
Leftover from J8,J9 |
|
|
0.00 |
REF |
P2,P3, P5, P6 |
Holes for power/ground pickup if needed |
|
|
|
|
1 |
P4 |
4 pin .1” dual row .23” mating length, .095” tail length |
Leftover from J8,J9 |
|
|
0.00 |
12 |
R1,R2,R3,R5-R7,R15,R17,R18,R20-R22 |
5.11k 1% 1/4 watt resistor. R15 only needs to be 1% |
Yageo |
MFR-25FBF52-5K11 |
0.10 |
1.20 |
Alt |
|
|
KOA Speer |
MF1/4DC5111F |
0.06 |
|
6 |
R8-R12, R14 |
1k 1% 1/4 watt resistor. Don't need to be 1% |
Yageo |
MFR-25FBF52-1K |
0.10 |
0.60 |
Alt |
|
|
KOA Speer |
MF1/4DC1001F |
0.06 |
|
1 |
R13 |
10 ohm 3W resistor. 14W peak power. Limits charging current to 1.2A, |
Vishay |
RWM041010R0JR15E1 |
0.63 |
0.63 |
1 |
R16 |
732 ohm 1% resistor |
Yageo |
MFR-25FBF52-732R |
0.10 |
0.10 |
Alt |
|
|
KOA Speer |
MF1/4DC7320F |
0.06 |
|
|
|
|
KOA Speer |
MF1/4DCT52R7320F |
0.06 |
|
1 |
R19 |
267 ohm 1% resistor |
Yageo |
MFR-25FBF52-267R |
0.10 |
0.10 |
Alt |
|
|
KOA Speer |
MF1/4DC2670F |
0.06 |
|
2 |
R4,R23 |
100 ohm 1% resistor. 5% should be ok |
Yageo |
MFR-25FBF52-100R |
0.10 |
0.20 |
3 |
RN1-RN3 |
8 pin SIP 220/330 ohm terminator. 220 to pin 8 |
Bourns |
4608X-104-221/331LF |
0.38 |
1.14 |
1 |
U1 |
BEAGLEBONE BLACK |
CircuitCo |
BB-BBLK-000 |
|
55.00 |
3 |
U2,U3,U5 |
74LVC245 3.3 to 5V translator 20 pin DIP |
Texas Instruments |
SN74LVC245AN |
0.60 |
1.80 |
2 |
U4,U13 |
MAX3076EEPD+ 3.3V RS422 transceiver |
Maxim |
MAX3076EEPD+ |
4.64 |
9.28 |
Alt |
|
|
Maxim |
MAX3076EEPD, MAX3076EAPD+, MAX3076EAPD |
|
|
5 |
U6-U10 |
TL431LP 2.5V regulator |
Fairchild Semiconductor |
KA431AZTA |
0.38 |
1.90 |
1 |
U11 |
I2C 256kb EEPROM |
ON Semiconductor |
CAT24C256LI-G |
1.20 |
1.20 |
1 |
U12 |
12V 1.5A DC/DC |
Murata |
OKR-T/1.5-W12-C |
3.97 |
3.97 |
Alt |
|
Not recommended for first rev board |
Artesyn |
LDO03C-005W05-HJ |
8.24 |
|
3 |
U14-U16 |
74ACT05 14 pin DIP |
Texas Instruments |
CD74ACT05E |
0.67 |
2.01 |
1 |
For P1 |
.1 Jumper |
3M |
969102-0000-DA |
0.10 |
0.10 |
|
|
|
|
Total price excluding pcb |
105.79 |
|
|
|
|
Power holdup price in total |
24.53 |
|
|
|
|
Beaglebone price in total |
55.00 |
|
|
|
|
|
|
|
Capacitor notes: |
|
|
|
|
|
For C1-C5 there is a trade off between how well the capacitors fit and run time. . 3F is not sufficient if any significant amount of data waiting write-back to flash. 10F is plenty but won't fit standing up in half hight drive bay. 5F should be OK but capacity loss with aging may be a concern. |
|
|
|
|
|
|
|
These are other possible 10F options |
5 |
C1-C5 |
Better ESR and tolerance |
Cooper Bussman |
HV1030-2R7106-R |
3.23 |
16.15 |
5 |
C1-C5 |
Better ESR and tolerance, Better life at high temperatures |
NessCap Co Ltd |
ESHSR-0010C0-002R7 |
3.87 |
19.35 |
|
|
|
|
|
|
|
These are possible 5F options |
5 |
C1-C5 |
|
Cooper Bussman |
HV1020-2R7505-R |
2.72 |
13.60 |
5 |
C1-C5 |
Better life at high temperatures |
NessCap Co Ltd |
ESHSR-0005C0-002R7 |
2.83 |
14.15 |
|
|
|
|
|
|
|
This is the original 3F option |
5 |
C1-C5 |
3F 2.7V .080 ESR, 2.5mm lead spacing |
Cooper Bussman |
HV0820-2R7305-R |
2.54 |
12.70 |