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Bill of Materials

 

 

 

 

DRO-350 
QCC-100 


Bill of Materials 
Construction 
Schematics 
Software 
Modifications 
User's Guide 
Add-Ons 

 

The following table lists the bill of materical needed to complete the DRO-350.  It is divided into two sections, one for the PCB assembly and one for the enclosure.  Note that vendors constantly update their prices so the costs listed below may vary.

Download Excel spreadsheet of BOM (CSV)

PCB Assembly

Part Description Vendor Vendor Part# Quantity Price Subtotal
1N4148 Diode Mouser 78-1N4148 4 $0.03 $0.12
1N5231 Zener Diode, 5.1V Mouser 78-1N5231B 1 $0.04 $0.04
1N5234 Zener Diode, 6.2V Mouser 78-1N5234B 1 $0.04 $0.04
1N5819 Schottky Diode Mouser 625-1N5819 1 $0.14 $0.14
2N3904 NPN General Purpose Amplifier Mouser 625-2N3904 1 $0.05 $0.05
MAN6940 Seven Segment LED Display, CC Mouser 512-MAN6940 9 $1.84 $16.56
Capacitor Ceramic Capacitor, 0.1uF 50V Mouser 21RZ310 12 $0.08 $0.96
Capacitor Electrolytic Capacitor, 100uF 16V Mouser 140-XRL16V100 1 $0.06 $0.06
Capacitor Tantalum Capacitor, 10uF 16V Mouser 80-T350E106K016 4 $0.48 $1.92
ECS-ZTT 20MHz Ceramic Resonator, with Caps Mouser 520-ZTT2000MX 1 $0.40 $0.40
L78M05CP Positive 5.0V Voltage Regulator Mouser 512-LM78M05CT 1 $0.36 $0.36
LED Red LED, 3mm (T1) Mouser 606-4303F1 6 $0.21 $1.26
LM317T 1.2V to 37V Voltage Regulator Mouser 512-LM317T 1 $0.51 $0.51
LM393AN Low-Power Dual Voltage Comparator Mouser 512-LM393AN 3 $0.33 $0.99
M74HC238B1R 3-to-8 Line Decoder Mouser 511-M74HC238 1 $0.50 $0.50
M74HC4316B1R Quad Bilateral Switch Mouser 512-MM74HC4316N 2 $0.50 $1.00
M74HC573B1R Octal Latch w/ 3-State Non-Inverting Mouser 512-MM74HC573N 3 $0.54 $1.62
PIC16F876A Flash 8-Bit CMOS Microcontroller Mouser 579-PIC16F876A-I/SP 1 $4.53 $4.53
Resistor 1/4W 5% Resistor, 1K Ohm Mouser 660-CF1/4L102J 6 $0.05 $0.30
Resistor 1/4W 5% Resistor, 10K Ohm Mouser 660-CF1/4L103J 24 $0.05 $1.20
Resistor 1/4W 5% Resistor, 100K Ohm Mouser 660-CF1/4L104J 2 $0.05 $0.10
Resistor 1/4W 5% Resistor, 1.5K Ohm Mouser 660-CF1/4L152J 1 $0.05 $0.05
Resistor 1/4W 5% Resistor, 220 Ohm Mouser 660-CF1/4L221J 1 $0.05 $0.05
Resistor 1/4W 5% Resistor, 56 Ohm Mouser 660-CF1/4L560J 1 $0.05 $0.05
Res Iso DIP16 Resistor Array, 150 Ohm Mouser 652-4116R-1-150 3 $0.49 $1.47
Switch Mountain Tact Switch Mouser 101-0621 23 $0.30 $6.90
UDN2983A 8 Channel Darlington Source Driver Digikey TD62783AP-ND 3 $1.23 $3.69
ULN2803A 8 Channel Darlington Sink Driver Mouser 511-ULN2803A 3 $0.44 $1.32
PCB DRO-350 Bare PCB ShumaTech #1 1 $17.95 $17.95
Total           $64.14

 

 

 

 

 

 

 

Enclosure

Part Description Vendor Vendor Part# Quantity Price Subtotal
Switch Cap Black Round Switch Cap, 12mm Mouser 101-0210 23 $0.12 $2.76
Enclosure Black Enclosure 1599HBK Mouser 546-1599H-BK 1 $10.27 $10.27
DIN4 Connector Panel Mount 4 pin Mini-DIN Connector Mouser 161-2104 3 $1.65 $4.95
DC Power Jack Snap-in DC Power Jack, 2.1mm Mouser 163-1060 1 $0.88 $0.88
Stereo Jack Stereo 3.5mm Jack Mouser 161-7300 1 $0.87 $0.87
Standoffs 0.875" 6-32 M/F Alum Hex Standoff Mouser 534-8417 6 $0.68 $4.08
D-Sub 9 pin D-Sub Receptacle Mouser 156-1309 1 $0.66 $0.66
Screws 4-40 x 1/2" Black Machine Screws 4-40-500 8 $0.02 $0.16
Screws 6-32 x 3/8" Machine Screw 6-32-375 6 $0.02 $0.11
Nuts 4-40 Zinc Nuts 4-40-N 2 $0.02 $0.04
Wall Wart 9V 1A DC Wall Transformer 2.1mm Mouser 412-109124 1 $9.31 $9.31
Overlay Silk-Screened Lexan Overlay ShumaTech #2/3 1 $12.95 $12.95
Total           $47.04
Total Cost           $111.18

The following list of components are optional:.

Download Excel spreadsheet of optional parts (CSV)

Optional

Part Description Vendor Vendor Part# Quantity Price Subtotal
MTA100-2-R MTA-100 2 pin receptacle Mouser 571-6404422 1 $0.12 $0.12
MTA100-3-R MTA-100 3 pin receptacle Mouser 571-6404423 1 $0.12 $0.12
MTA100-4-R MTA-100 4 pin receptacle Mouser 571-6404424 3 $0.20 $0.60
MTA100-5-R MTA-100 5 pin receptacle Mouser 571-6404425 1 $0.26 $0.26
MTA100-2-H MTA-100 2 pin header Mouser 571-6404562 1 $0.08 $0.08
MTA100-3-H MTA-100 3 pin header Mouser 571-6404563 1 $0.11 $0.11
MTA100-4-H MTA-100 4 pin header Mouser 571-6404564 3 $0.15 $0.45
MTA100-5-H MTA-100 5 pin header Mouser 571-6404565 1 $0.18 $0.18
LENS-T1 Low Profile T1 Lens - Clear Mouser 593-2000C 1 $0.25 $0.25
PIPE-T1 T1 Light Pipe - Clear, 0.80" Mouser 593-LSV080C 1 $0.26 $0.26

Total

 

 

 

 

 

$2.43

Order Tool

The order tool allows you to automatically submit the components in the BOM to Mouser and Digi-Key. Two vendors are used since all of the components in the BOM are not available from a single vendor. The vendor listed in the BOM for each component is the cheaper of the two when ordering for a single DRO-350. Ordering components for multiple DRO-350's may cause some components to be cheaper from the other vendor due to quantity discounts. The order tool does not take this into account so you are on your own if you want to order components for multiple DRO-350's at the cheapest possible price.

To use the order tool, enter the number of DRO-350's you would like to order components for and select the checkbox if you want to order the optional components listed above. Click on each submit button to order from the indicated vendor and follow the instructions given at their web site. Please be patient after clicking on the submit buttons since it sometimes takes a few minutes for the vendor's web site to accept all of the components in the BOM.

Number of DRO-350's:

Include optional components

Parts List

The following parts lists shows each part listed by its designator on the PCB.  This list is useful when constructing the DRO-350 so that parts can be easily looked up.  Again, the list is correct to the best of my knowledge but it may contain errors or omissions.

Download Excel spreadsheet of parts list (CSV)

Designator Value Description
C1 10uF Tantalum Capacitor 16V
C2 0.1uF Ceramic Capacitor, 50V
C3 10uF Tantalum Capacitor 16V
C4 0.1uF Ceramic Capacitor, 50V
C5 10uF Tantalum Capacitor 16V
C6 0.1uF Ceramic Capacitor, 50V
C7 100uF Electrolytic Capacitor, 16V
C8 0.1uF Ceramic Capacitor, 50V
C9 0.1uF Ceramic Capacitor, 50V
C10 0.1uF Ceramic Capacitor, 50V
C11 0.1uF Ceramic Capacitor, 50V
C12 0.1uF Ceramic Capacitor, 50V
C13 0.1uF Ceramic Capacitor, 50V
C14 0.1uF Ceramic Capacitor, 50V
C15 10uF Tantalum Capacitor 16V
C16 0.1uF Ceramic Capacitor, 50V
C17 0.1uF Ceramic Capacitor, 50V
D1 1N5819 Schottky Diode
D2 1N5231 Zener Diode, 5.1V
D3 1N5234 Zener Diode, 6.2V
D4 1N4148 Diode
D5 1N4148 Diode
D6 1N4148 Diode
D7 1N4148 Diode
DS1 MAN6940 Seven Segment LED Display, CC
DS2 MAN6940 Seven Segment LED Display, CC
DS3 MAN6940 Seven Segment LED Display, CC
DS4 MAN6940 Seven Segment LED Display, CC
DS5 MAN6940 Seven Segment LED Display, CC
DS6 MAN6940 Seven Segment LED Display, CC
DS7 MAN6940 Seven Segment LED Display, CC
DS8 MAN6940 Seven Segment LED Display, CC
DS9 MAN6940 Seven Segment LED Display, CC
DS10 Red LED, 3mm (T1)
DS11 Red LED, 3mm (T1)
DS12 Red LED, 3mm (T1)
DS13 Red LED, 3mm (T1)
DS14 Red LED, 3mm (T1)
DS15 Red LED, 3mm (T1)
JP1 Header, 5-Pin
JP2 Header, 3-Pin
JP3 Header, 4-Pin
JP4 Header, 4-Pin
JP5 Header, 4-Pin
JP6 Header, 2-Pin
JP7 Header, 10-Pin
JP8 Header, 2-Pin, Dual row
Q1 2N3904 NPN General Purpose Amplifier
R1 10K 1/4W 5% Resistor
R2 10K 1/4W 5% Resistor
R3 10K 1/4W 5% Resistor
R4 10K 1/4W 5% Resistor
R5 10K 1/4W 5% Resistor
R6 1K 1/4W 5% Resistor
R7 1K 1/4W 5% Resistor
R8 1K 1/4W 5% Resistor
R9 100K 1/4W 5% Resistor
R10 100K 1/4W 5% Resistor
R11 220 1/4W 5% Resistor
R12 150 Resistor Array
R13 150 Resistor Array
R14 150 Resistor Array
R15 10K 1/4W 5% Resistor
R16 10K 1/4W 5% Resistor
R17 10K 1/4W 5% Resistor
R18 10K 1/4W 5% Resistor
R19 10K 1/4W 5% Resistor
R20 10K 1/4W 5% Resistor
R21 10K 1/4W 5% Resistor
R22 10K 1/4W 5% Resistor
R23 10K 1/4W 5% Resistor
R24 10K 1/4W 5% Resistor
R25 10K 1/4W 5% Resistor
R26 10K 1/4W 5% Resistor
R27 1.5K 1/4W 5% Resistor
R28 10K 1/4W 5% Resistor
R29 10K 1/4W 5% Resistor
R30 10K 1/4W 5% Resistor
R31 10K 1/4W 5% Resistor
R32 10K 1/4W 5% Resistor
R33 10K 1/4W 5% Resistor
R34 10K 1/4W 5% Resistor
R35 56 1/4W 5% Resistor
R36 1K 1/4W 5% Resistor
R37 1K 1/4W 5% Resistor
R38 1K 1/4W 5% Resistor
S1 Mountain Tact Switch
S2 Mountain Tact Switch
S3 Mountain Tact Switch
S4 Mountain Tact Switch
S5 Mountain Tact Switch
S6 Mountain Tact Switch
S7 Mountain Tact Switch
S8 Mountain Tact Switch
S9 Mountain Tact Switch
S10 Mountain Tact Switch
S11 Mountain Tact Switch
S12 Mountain Tact Switch
S13 Mountain Tact Switch
S14 Mountain Tact Switch
S15 Mountain Tact Switch
S16 Mountain Tact Switch
S17 Mountain Tact Switch
S18 Mountain Tact Switch
S19 Mountain Tact Switch
S20 Mountain Tact Switch
S21 Mountain Tact Switch
S22 Mountain Tact Switch
S23 Mountain Tact Switch
U1 16F876A Flash 8-Bit CMOS Microcontroller
U2 74HC238 3-to-8 Line Decoder
U3 LM393 Low-Power Dual Voltage Comparator
U4 LM393 Low-Power Dual Voltage Comparator
U5 LM393 Low-Power Dual Voltage Comparator
U6 74HC4316 Quad Bilateral Switch
U7 74HC573 Octal Latch w/ 3-State Non-Inverting
U8 UDN2983A 8 Channel Darlington Source Driver
U9 ULN2803A 8 Channel Darlington Sink Driver
U10 74HC573 Octal Latch w/ 3-State Non-Inverting
U11 UDN2983A 8 Channel Darlington Source Driver
U12 ULN2803A 8 Channel Darlington Sink Driver
U13 74HC573 Octal Latch w/ 3-State Non-Inverting
U14 UDN2983A 8 Channel Darlington Source Driver
U15 ULN2803A 8 Channel Darlington Sink Driver
U16 7805 Positive 5.0V Voltage Regulator
U17 LM317 1.2V to 37V Voltage Regulator
U18 74HC4316 Quad Bilateral Switch
Y1 20.0MHz Ceramic Resonator, with Caps

 

 

 

 

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