
DS2174 Design Kit 
2 of 12 
COMPONENT LIST 
DESIGNATION 
QTY 
DESCRIPTION 
SUPPLIER 
PART 
C1, C2, C23 
C3–C7, C13, 
C43, C45–C48 
C8–C12 
C14, C16–C20 
C15 
C21, C22 
C24–C31, C41 
C32–C40, C44 
C42 
3 
1 F 10%, 16V ceramic capacitors (1206) 
Panasonic 
ECJ-3YB1C105K 
11 
0.1 F 10%, 25V ceramic capacitors (1206) 
Panasonic 
ECJ-3VB1E104K 
5 
6 
1 
2 
9 
10 
1 
0.01 F 10%, 50V ceramic capacitors (1206) 
10 F 20%, 16V tantalum capacitors (B case) 
68 F 20%, 16V tantalum capacitor (D case) 
22pF 10%, 100V ceramic capacitors (1206) 
Do not place ceramic capacitors (1206) 
56pF 5%, 50V tall case ceramic capacitors (1206) 
0.001 F 10%, 50V ceramic capacitor (1206) 
Panasonic 
Panasonic 
Panasonic 
AVX 
— 
Phycomp 
Panasonic 
Vishay (formerly General 
Semiconductor) 
Panasonic 
Samtec 
Samtec 
Samtec 
AMP 
Amphenol 
Samtec 
ECU-V1H103KBM 
ECS-T1CX106R 
ECS-T1CD686R 
12061A220KAT2A 
— 
1206CG560J9B200 
ECU-V1H102KBM 
D1 
1 
1A, 50V general-purpose silicon diode  
1N4001 
DS1 
J1 
J2 
J5 
J6 
J7 
J8 
1 
1 
1 
1 
1 
1 
1 
LED, red, SMD 
50-pin connector, dual row 
16-pin header, dual row vertical 
3-pin header, receptacle jack, right angle  
DB9 connector, short case, right angle  
BNC 50  PC board bulkhead jack, right angle 
Socket strip, 50-pin header, dual row vertical 
LN1251C 
SSW-125-01-T-D 
HDR-TSW-18-14-T-D 
RAPC712 
788750-2 
31-5431 
SSW-125-01-T-D 
JMP1–JMP5, 
JMP7 
R1 
R2, R3, R45, 
R46 
R4, R9–R12, 
R17–R20, R40, 
R44, R47 
R5–R8,  
R13–R16, R38 
R21–R24, 
R29–R32, R37, 
R39, R42 
R25–R28, 
R33–R36, R43 
R41 
SW1 
U1 
U2 
U3, U7, U8 
U4 
U5 
U6 
U9 
Y1 
Y2 
6 
Jumpers, 2-pin headers (100 mil) 
AMP 
1 
330  1%, 1/8W resistor (1206)  
Panasonic 
ERJ-8ENF3300V 
4 
10k  1%, 1/8W resistors (1206) 
Panasonic 
ERJ-8ENF1002V 
12 
30.1  1%, 1/8W resistors (1206)  
Panasonic 
ERJ-8ENF30R1V 
9 
Do not place resistors (1206) 
— 
— 
11 
100  1%, 1/8W resistors (1206) 
Panasonic 
ERJ-8ENF1000V 
9 
0  5%, 1/8W resistors (1206) 
Panasonic 
ERJ-8GEYJ0R00V 
1 
1 
1 
1 
3 
1 
1 
1 
1 
1 
1 
10k  0.05W, 15V variable 1-turn resistor  
4-pin, single-pole, light-touch switch 
DS2174 EBERT (44-Pin TQFP, 0°C to +70°C) 
300mA, 3.3V, 5-pin SOT23 voltage regulator 
Latch octal D-type with 5V inputs, 20-pin TSSOP 
Dual RS-232 transmitter/receiver (150-mil 16-pin SO) Dallas Semiconductor 
DS87C520-ECL high-speed microcontroller 
3-to-8 line decoder (16-pin SO) 
Quad line receiver (16-pin SO) 
11.0592MHz low-profile crystal 
Half-size socket (8-pin STD DIP) 
Panasonic 
Panasonic 
Dallas Semiconductor 
Maxim 
Texas Instruments 
EVM-7JSX30B14 
EVQPAE04M 
DS2174 
MAX8887EZK33 
SN74LCX373PWR 
DS232AR 
DS87C520-ECL 
TC74HC138AFN 
MAX9126ESE 
EC1-S-11.0592M 
1108800 
Dallas Semiconductor 
Toshiba 
Maxim 
Dove Electronics 
Aries Electronics