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

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

9

C10-C18

.1uF X7R

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

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

0.06

1

R19

267 ohm 1% resistor

Yageo

MFR-25FBF52-267R

0.10

0.10

Alt

KOA Speer

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

2

XRN1, XRN2

8 pin SIP socket.

Aries

08-0513-10T

0.91

1.82

Alt

Aries

08-0518-10

1.48

1

U1

BEAGLEBONE BLACK

CircuitCo

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

107.71

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