General Note
IRC reserves the right to make changes in product specifi cation 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
• 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
• Ratio tolerances to ±0.05%
• Absolute tolerances to ±0.1%
• RoHS compliant terminations available
• Superior TaNFilm® resistors on ceramic substrate
• Same footprint as the industry standard SOIC-N package
CHC-Precision Series
Precision Ceramic
Ball Grid Arrays
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
confi gurations.
Precise state-of-the-art laser trimming provides close tolerances and tight ratios. The TaNFilm® process
enables IRC to manufacture custom circuit confi gurations and multiple resistance values without sacrifi cing 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 confi gurations, specify the IRC Precision Ceramic Ball Grid Arrays.
Electrical Data
Manufacturing Capabilities
Resistance
Range
Available
Absolute Tolerances
Available Ratio Tolerances
(Ratio to R1)
Best
Absolute TCR
Tracking TCR
(Track to R1)
10Ω - 25ΩJ G F D C G F D ±100ppm/°C ±20ppm/°C
25.1Ω - 50ΩJ G F D C G F D C ±50ppm/°C ±10ppm/°C
50.1Ω - 200ΩJ G F D C B G F D C B ±25ppm/°C ±5ppm/°C
201Ω - 100KΩJ G F D C B G F D C B A ±25ppm/°C ±5ppm/°C
Package Power Rating at 70°C Temperature Range Maximum Voltage Noise Substrate Termination
Element Network
8-Pad 100mW 400mW
-55°C to +150°C 50V
(not to exceed PxR) < -25dB 99.5%
Alumina
Solder
plated over
nickel barrier
16-Pad 100mW 800mW
√
CHC-Precision Series Issue May 2009 Sheet 1 of 3
• 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
Schematic CH4A
(View from top)
Schematic CH8A
(View from top)
L
0.250″
±0.003
A1
0.025″
±0.003
0.058″
±0.005
99.6%
Alumina
Substrate
0.030″ ±0.002
10/90 Sn/Pb solder balls
0.025″
±0.010
0.050″
±0.010
0.200″
±0.010
E*
A
12 N
(View from top) (View from bottom)
Physical and Schematic Data
Number of Columns N Length L
4 0.200″ ±0.003
8 0.400″ ±0.003
*Rows B, C and D not populated
Precision Ceramic
Ball Grid Arrays
CHC-Precision Series Issue May 2009 Sheet 2 of 3
• 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
Environmental Data Power Derating Curve
Environmental Test Per
MIL-PRF-83401
Maximum
ΔR
Typical
ΔR
Thermal Shock And
Power Conditioning ±0.1% ±0.02%
Low Temperature
Operation ±0.05% ±0.02%
Short-time Overload ±0.05% ±0.02%
Moisture Resistance ±0.1% ±0.03%
Shock ±0.1% ±0.03%
Vibration ±0.1% ±0.03%
Life ±0.1% ±0.03%
High Temperature
Exposure ±0.1% ±0.03%
Low Temperature
Storage ±0.05% ±0.01%
25° 70° 150°
100
50
10
% Of Rated P ower
Temperature in °C
Precision Ceramic
Ball Grid Arrays
Prefi x CHC - CH8A - 03 - 1002 - B B
Model
CH4A = 8-pad with 10/90 Sn/Pb terminations
CH4ALF = 8-pad with RoHS compliant
SnAgCu terminations
CH8A = 16-pad with 10/90 Sn/Pb terminations
CH8ALF = 16-pad with RoHS compliant
SnAgCu terminations
TCR Code
01 = ±100 ppm/°C Commercial Grade
02 = ±50 ppm/°C Commercial Grade
03 = ±25 ppm/°C Commercial Grade
Resistor Code
4-digit resistance code
Example: 1002 = 10KΩ; 49R9 = 49.9Ω
Absolute Tolerance Code
J = ±5%; G = ±2%; F = ±1%; D = ±0.5%; C = ±0.25%; B = ±0.1%
Optional R1 Ratio Tolerance Code
F = ±1%; D = ±0.5%; B = ±0.1%; A = ±0.05%
For additional information or to discuss your specifi c requirements.
please contact our Applications Team using the contact details below.
Ordering Data
CHC-Precision Series Issue May 2009 Sheet 3 of 3
