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
• Corpus Christi Texas 78411 USA
© IRC Advanced Film Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
Surface Mount QSOP
Resistor Networks
• Reliable, no internal cavity
• High resistor density - .025" lead spacing
• Standard JEDEC 16, 20, and 24 pin packages
• Ultra-stable TaNSil® resistors on silicon substrate
• RoHS compliant and Sn/Pb terminations available
QSOP Series
IRC’s TaNSil® QSOP resistor networks are the perfect solution for high volume applications that demand a
small wiring board footprint. The 0.025" lead spacing provides higher lead density, increased component
count, lower resistor cost, and high reliability.
The tantalum nitride film system on silicon provides precision tolerance, exceptional TCR tracking, low cost
and miniature package. Excellent performance in harsh, humid environments is a trademark of IRC’s
self-passivating TaNSil® resistor film.
The QSOP series is ideally suited for the latest surface mount assembly techniques and each lead can be
100% visually inspected. The compliant gull wing leads relieve thermal expansion and contraction stresses
created by soldering and temperature excursions.
For applications requiring high performance resistor networks in a low cost, surface mount package, specify
IRC QSOP resistor networks.
Electrical Data Environmental Data
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%
Life ±0.05% ±2.0%
Resistance Range 10 to 250KΩ
Absolute Tolerance To ±0.1%
Ratio Tolerance to R1 To ±0.05%
Absolute TCR To ±25ppm/°C
Tracking TCR To ±5ppm/°C
Element Power Rating @ 70°C
Isolated Schematic
Bussed Schematic
100mW
50mW
Package Power Rating @ 70°C
16-Pin 750mW
20-Pin 1.0W
24-Pin 1.0W
Rated Operating Voltage
(not to exceed P x R) 100 Volts
Operating Temperature -55°C to +125°C
Noise <-30dB
√
______
QSOP Series Issue January 2009 Sheet 1 of 4
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
© IRC Advanced Film Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
Manufacturing Capability Data
Surface Mount QSOP
Resistor Networks
Absolute
TCR
(ppm/°C)
ISOLATED SCHEMATIC A BUSSED SCHEMATIC B
Ohmic
Range
(Ω)
Available
Tolerances
Available
Ratio
Tolerances
Best
Tracking
(±ppm/°C)
Ohmic
Range
(Ω)
Available
Tolerances
Available
Ratio
Tolerances
Best
Tracking
(±ppm/°C)
250
10-25 F G J F G 100 10-25 F G J F G 200
26-50 D F G J C D F G 50 26-50 F G J D F G 100
51-200 C D F G J C D F G 10 51-100 D F G J C D F G 50
201-250K B C D F G J A B C D F G 5 101-200 D F G J B C D F G 25
201-500 B C D F G J B C D F G 20
501-100K B C D F G J A B C D F G 5
100
26-50 D F G J C D F G 50 26-50 F G J D F G 100
51-200 C D F G J C D F G 5 51-100 D F G J C D F G 50
201-250K B C D F G J A B F G 5 101-200 D F G J B C D F G 25
201-500 B C D F G J B C D F G 20
501-100K B C D F G J A B C D F G 5
50
26-50 D F G J C D F G 50 51-100 D F G J C D F G 50
51-200 C D F G J C D F G 10 101-200 D F G J B C D F G 25
201-250K B C D F G J A B F G 5 201-500 B C D F G J B C D F G 20
501-100K B C D F G J A B C D F G 5
25
51-200 C D F G J C D F G 10 201-500 B C D F G J B C D F G 20
201-250K B C D F G J A B F G 5 501-100K B C D F G J A B C D F G 5
QSOP Series Issue January 2009 Sheet 2 of 4
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
© IRC Advanced Film Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com QSOP Series Issue January 2009 Sheet 3 of 4
Surface Mount QSOP
Resistor Networks
Power Derating Curve
25° 70° 125°
100
50
10
% Of Rated Power
Temperature in °C
Physical Data
N
N
Schematic A
Isolated
Schematic B
Bussed
Note: N = number of pins (16, 20, 24)
R1
1 2 3
R1
1 2 3
Note: All dimesions exclude mold flash and
end flash which shall not exceed 0.006" per side.
Drawing proportions not to scale.
Note: N = number of pins (16, 20, 24)
Note: Lead Coplanarity 0.004" Max.
Schematic Data
# OF PINS DIMENSION "D" ZD REF
16 0.193″ ±0.004 0.009″
20 0.341″ ±0.004 0.058″
24 0.341″ ±0.004 0.033″
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
© IRC Advanced Film Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com QSOP Series Issue January 2009 Sheet 4 of 4
Prefix GUS - QS8A - 01 - 1002 - F B
Style, Schematic and Termination
QS8A = 16-pin, 8 Isolated Resistors, with standard Sn/Pb terminations
QS8ALF = 16-pin, 8 Isolated Resistors, with 100% matte tin, Pb-free terminations
QS8B = 16-pin, 15 Bussed Resistors, with standard Sn/Pb terminations
QS8BLF = 16-pin, 15 Bussed Resistors, with 100% matte tin, Pb-free terminations
QS0A = 20-pin, 10 Isolated Resistors, with standard Sn/Pb terminations
QS0ALF = 20-pin, 10 Isolated Resistors, with 100% matte tin, Pb-free terminations
QS0B = 20-pin, 19 Bussed Resistors, with standard Sn/Pb terminations
QS0BLF = 20-pin, 19 Bussed Resistors, with 100% matte tin, Pb-free terminations
QSCA = 24-pin, 12 Isolated Resistors, with standard Sn/Pb terminations
QSCALF = 24-pin, 12 Isolated Resistors, with 100% matte tin, Pb-free terminations
QSCB = 24-pin, 23 Bussed Resistors, with standard Sn/Pb terminations
QSCBLF = 24-pin, 23 Bussed Resistors, with 100% matte tin, Pb-free terminations
Absolute TCR Code
00 = ±250 ppm/°C; 01 = ±100 ppm/°C; 02 = ±50 ppm/°C; 03 = ±25 ppm/°C
Resistance Code
4-Digit Resistance Code
Ex: 1002 = 10KΩ, 50R1 = 50.1Ω
Absolute Tolerance Code
J = ±5%; G = ±2%; F = ±1%; D = ±0.5%; C = ±0.25%; B = ±0.1%
Ratio Tolerance Code (optional)
G = ±2%; F = ±1%; D = ±0.5%; C = ±0.25%; B = ±0.1%; A = ±0.05%
Packaging
Specify tubes or tape & reel.
For additional information or to discuss your specific requirements,
please contact our Applications Team using the contact details below.
Surface Mount QSOP
Resistor Networks
Ordering Data
