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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 • Email: afdsales@irctt.com • Website: www.irctt.com CHC-Precision Series Issue March 2004
Precision Ceramic
Ball Grid Arrays
CHC-Precision Series
• Same footprint as the industry standard SOIC-N package
• Superior TaNFilm® resistors on ceramic substrate
• Custom array solutions also available
• Absolute tolerances to ±0.1%
• Ratio tolerances to ±0.05%
Electrical Data
IRC's TaNFilm® ceramic Precision Ball Grid Array offers precision tolerances in a ceramic BGA package.
In addition, the TaNFilm® CHC Series provides all the unique qualities of our other TaNFilm® package
configurations.
Precise state-of-the-art laser trimming provides close tolerances and tight ratios. The TaNFilm® process
enables IRC to manufacture custom circuit configurations and multiple resistance values without
sacrificing the tightest tolerance and tracking characteristics of precision networks. The Tantalum Nitride
resistor material is self-passivating for environmental protection surpassing military requirements and
guaranteeing exceptional ratio stability.
For applications requiring a high degree of reliability, stability, accuracy and low noise, plus the advantages
of new resistor configurations, specify the IRC Precision Ceramic Ball Grid Arrays.
Manufacturing Capabilities
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CHC-Precision Series Issue March 2004
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• Corpus Christi Texas 78411 USA
© IRC Advanced Film Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Email: afdsales@irctt.com • Website: www.irctt.com
Precision Ceramic
Ball Grid Arrays
Physical Data
Environmental Data
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Standard Schematics
(view from top)
1234
E*
CH4A R1
A
12345 678
E*
CH8A R1
A
0.058” 0.005
±
0.025” 0.003
±
99.6% Alumina
Substrate
* Rows B,C, & D not populated
0.030” ±0.002
10/90 Sn/Pb
Solder Balls
N
0.200” 0.010
±
0.050” 0.010
±
0.025” 0.010
±
12
A
E*
0.250” 0.003
±
A1 L
0.400” 0.003
±
0.200” 0.003
±
4
8
Length “L”
# of Columns
“N”
(view from top)
(view from bottom)
Power Derating
25° 70° 150°
100
50
10
% Of Rated Power
Temperature in °C
CHC-Precision Series Issue March 2004
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• Corpus Christi Texas 78411 USA
© IRC Advanced Film Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Email: afdsales@irctt.com • Website: www.irctt.com
Precision Ceramic
Ball Grid Arrays
Ordering Procedure
Prefix CHC - CH8A - 03 - 1002 - B B
Model
CH4A: 8-pad
CH8A:16-pad
TCR Code
01 = ±100ppm/°C Commercial Grade
02 = ±50ppm/°C Commercial Grade
03 = ±25ppm/°C Commercial Grade
For additional information or to discuss your specific requirements,
please contact our Applications Team using the contact details below.
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Optional R1 Ratio Tolerance Code
F = ±1%; D = ±0.5%; B = ±0.1%; A = ±0.05%
Absolute Tolerance Code
J = ±5%; G = ±2%; F = ±1%
D = ±0.5%; C = ±0.25%; B = ±0.1%
Resistance Code
4-Digit resistance code
Ex: 1002 = 10K
Ω
; 49R9 = 49.9
Ω
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