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 2.99 14.95
5 Alt Better ESR and tolerance Eaton Bussman HV1030-2R7106-R 3.23
5 Alt Better ESR and tolerance, Better life at high temperatures NessCap Co Ltd ESHSR-0010C0-002R7 3.72
1 C6 10uF 25V X7R 5 mm lead spacing TDK FK26X7R1E106K 0.63 0.63
4 C7-C9, C19 22uF 10V X7R 5 mm lead spacing TDK FK20X7R1A226M 0.63 2.52
9 C10-C19 .1uF X7R 2.5 mm lead spacing Vishay K104K15X7RF53L2 0.10 0.90
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 Shrouded 20 pin .1” dual row .23” mating length, .095” tail length .030uin GXT plating FCI 75869-104LF 1.35 4.05
Alt
10uin gold of above 3M D2520-6002-AR 1.89
Alt Not recommended for J7 Unshrouded 20 pin .1” dual row .23” mating length, .095” tail length .030uin GXT plating FCI 67996-220HLF 0.70
1 J4 Shrouded 34 pin .1” dual row .23” mating length, .095” tail length .030uin GXT plating FCI 75869-106LF 1.95 1.95
Alt
10uin gold of above 3M D2534-6002-AR 1.80
Alt
Unshrouded 34 pin .1” dual row .23” mating length, .095” tail length .030uin GXT plating FCI 67996-134HLF 1.43
Alt
10uin gold of above Sullins PBC17DAAN 2.55
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
Alt
10uin gold, 46 pin Sullins PBC23DAAN 3.19
1 P1, P9 2 pin .1” .23” mating length, .095” tail length Leftover from J8,J9

0.00
REF P2,P3, P5, P6, P10, P11 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
2 P7, P8 8 pin .1” dual row .23” mating length, .095” tail length .030uin GXT plating FCI 67996-208HLF 0.93 1.86


10uin gold Sullins PBC04DAAN 1.17
14 R1,R2,R3,R5-R7,R15,R17,R18,R20-R22, R24, R27 5.11k 1% 1/4 watt resistor. R15 only needs to be 1% Yageo MFR-25FBF52-5K11 0.10 1.40
Alt

KOA Speer MF1/4DC5111F 0.06
Alt

Stackpole Electronics RNF14FTD5K11 0.15
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
1 R25 51.1k ohm 1% resistor. 5% should be ok Yageo MFR-25FBF52-51K1 0.10 0.10
Alt

KOA Speer
MF1/4DC5112F
0.12
1 R26 10k ohm 1% resistor. 5% should be ok Yageo MFR-25FBF52-10K 0.10 0.10
2 RN1-RN2 10 pin SIP 150 ohm terminator Bourns 4610X-101-151LF 0.40 0.80
Alt

Bourns 4310R-101-151LF 0.79
1 XRN1 10 pin SIP socket,10uin gold Aries 10-0518-10 1.79 1.87
Alt
Tin contacts Aries 10-0513-10T 1.87
Alt
Gold flash, 50 cycles max TE Connectivity 1814655-7 1.86
Alt
20u” gold TE Connectivity 1-1571994-0 4.71
1 U1 BEAGLEBONE BLACK CircuitCo BB-BBLK-000
55.00
2 U2,U5 74LVC245 3.3 to 5V translator 20 pin DIP Texas Instruments SN74LVC245AN 0.60 1.20
2 U4,U13 RS422 transceiver SOIC-14 32 Mbos Exar SP3497EEN-L 2.75 5.50
Alt
26 Mbps TI SN65HVD33DR 3.75
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
See R24, R25 resistor note below for either U12 part Artesyn LDO03C-005W05-HJ 8.24
4 U14-U17 74ACT05 14 pin DIP Texas Instruments CD74ACT05E 0.67 2.68
4 P1, P7-P9 .1 Jumper with handle TE 881545-5 0.17 0.68
Alt
.1 Jumper 3M 969102-0000-DA 0.10











Total price excluding pcb 111.05




Power holdup price in total 26.56




Beaglebone price in total 55.00







Notes:





U3 not used
R24 and R25 values are for when a LDO03H is used for U12. If OKR-T/1.5-W12-C is used don't install R24 and R25







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 possible 15F options
5 C1-C5
Eaton Bussman HV1325-2R7156-R 4.1 20.50







These are possible 5F options
5 C1-C5
Eaton Bussman HV1020-2R7505-R 2.72 13.60
5 C1-C5 Better life at high temperatures NessCap Co Ltd ESHSR-0005C0-002R7 2.72 13.60