IRC Advanced Film Division
General Note
IRC reserves the right to make changes in product specification without notice or liability.
All information is subject to IRC’s own data and is considered accurate at time of going to print. A subsidiary of
TT electronics plc
SOT143 Series Issue March 2007
© IRC Advanced Film Division Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Email: afdsales@irctt.com • Website: www.irctt.com
Test Per
MIL-PRF-83401 Typical Delta R Max Delta R
Thermal Shock ±0.02% ±0.1%
Power
Conditioning ±0.03% ±0.1%
High Temperature
Exposure ±0.03% ±0.05%
Short-time
Overload ±0.02% ±0.05%
Low Temperature
Storage ±0.03% ±0.05%
SOT143
4-PIN SMT Package
• Ratio tolerances to ±0.05%
• Small, industry standard package
• Standard and custom circuits available
• Standard Sn/Pb and Pb-free terminations available
SOT143 Series
Specifications Environmental Data
Characteristic Value
Absolute Tolerance To ±0.1%
Ratio Tolerance To ±0.05%
Absolute TCR To ±25ppm/°C
Tracking TCR To ±2ppm/°C
Package Power Rating (70°C) 250mW
Element Power Rating (70°C) 100mW
Rated Operating Voltage
(not to exceed Power x Resistance) 100V
Operating Temperating Range -55°C to +125°C
Noise <-30dB
Substrate Material Silicon
√
________________ Power Derating Curve
25° 70° 125°
100
50
10
% Of Rated Power
Temperature in °C
SOT143 Series Issue March 2007
IRC Advanced Film Division
© IRC Advanced Film Division Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Email: afdsales@irctt.com • Website: www.irctt.com
SOT143
4-PIN SMT Package
Schematic / Circuit Detail
Schematics
1 2
34
R1
Schematic D (bussed)
R2
R3
R2
1 2
4 3
Schematic C (isolated)
R3
1 2
4 3
Schematic B (series)
R2 R3
R1
1 2
4 3
Schematic A (series)
R2 R3
R1
Circuit Details for Schematic A
Schematic/Circuit Code R1 (W) R2 (W) R3 (W)
A001 500.0 50.0K 50.0K
A002 10.0K 10.0K 10.0K
A003 900.0 100.0 9.0K
A004 500.0 48.0K 48.0K
A005 200.0 40.0K 40.0K
Circuit Details for Schematic C
Schematic/Circuit Code R1 (W) R2 (W) R3 (W)
C001 N/A 10.0K 10.0K
C002 N/A 1.0K 1.0K
C003 N/A 9.0K 1.0K
C004 N/A 750.0 750.0
C005 N/A 100K 100K
C006 N/A 33.0K 330.0
C007 N/A 2.0K 2.0K
C008 N/A 10.0K 2.0K
C009 N/A 10.0K 200.0
C010 N/A 2.1K 10.0K
C011 N/A 2.15K 10.0K
C012 N/A 10.0K 100K
Circuit Details for Schematic B
Schematic/Circuit Code R1 (W) R2 (W) R3 (W)
B001 10.0K 10.0K 10.0K
B002 900.0 100.0 9.0K
B003 1.0K 10.0K 10.0K
Circuit Details for Schematic D
Schematic/Circuit Code R1 (W) R2 (W) R3 (W)
D001 121.0 1.33K 1.0K
D002 2.0K 1.0K 2.0K
D003 50.0K 5.0K 5.0K
D004 5.4K 5.4K 27.5K
D005 40.0K 40.0K 40.0K
D006 10.0K 10.0K 20.0K
D007 20.0K 20.0K 20.0K
Prefix SOT - SOT143 - 01 - A 002 - F B
Style
SOT143 = SOT143 with standard Sn/Pb termination
SOT143LF = SOT143 with Pb-free terminations
Absolute TCR Code
00 = ±250ppm/°C; 01 = ±100ppm/°C
02 = ±50ppm/°C; 03 = ±25ppm/°C
Schematic Code
A, B, C, D
Circuit Number
See Schematic/Circuit Detail Tables
Absolute Tolerance Code
K = ±10%; J = ±5%; G = ±2%; F = ±1%
D = ±0.5%; C = ±0.25%; B = ±0.1%
Ratio Tolerance Code
G = ±2%; F = ±1%; D = ±0.5%
C = ±0.25%; B = ±0.1%; A = ±0.05%
For additional information or to discuss your specific
requirements, please contact our Applications Team
using the contact details below.
SOT143 Series Issue March 2007
IRC Advanced Film Division
© IRC Advanced Film Division Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Email: afdsales@irctt.com • Website: www.irctt.com
SOT143
4-PIN SMT Package
Ordering Procedure
Physical Data
0.115"±0.004"
0.004"
max 0.039" ±0.004"
0.017" min
0.020" max
0.022" ref.
0.003" min
0.007" max
0.022"
±0.002" 0.075" BSC
0.093"
±0.010"
0.051"
±0.004"
0.033"
±0.004"
12
34
0.0395" ref.
0.040" min
0.047" max.
0.075" ref.
0.087" ref.
0.057" ref.
0.031"
min.
0.025" ref.
12
34
RECOMMENDED PAD LAYOUT
