High Frequency
Surface Mount Attenuators
IRC Advanced Film Division
PAT Series
• Frequency operation to 10 GHz
• Industry standard 0805, 1206, 1612 chip sizes
• Low parasitic capacitance and inductance
• Thin film stability over time and temperature
The PAT chip attenuator series are available in a wide range of power
ratings from 100mW to 250mW. The surface mount package is ideal for
applications where parasitic capacitance and inductance are concerns. Typical applications include wireless
communication receivers and transmitters.
Electrical Data
PAT1220
50W
PAT1632
50W
PAT3042SC
50W
PAT3042SD
75W
Impedance
Frequency Range
VSWR
DC to 10 GHz
1.3
DC to 3GHz
1.3
DC to 3GHz
1.2
DC to 2GHz
1.3
0, 1, 2, 3, 4, 5, 6,
7, 8, 9, 10dB
0, 1, 2, 3, 4, 5,
6, 7, 8, 9, 10, 16dB
0, 1, 2, 3, 4, 5,
6, 7, 8, 9, 10, 16, 20dB
Attenuation
0 to 10dB: 0.3dB
16dB: 0.5dB
0 to 10dB: 0.3dB
16, 20dB: 0.5dB
Attenuation Tolerance
0.3dB
TCR
50ppmꢀ/C
100mW
50ppmꢀ/C
125mW
25ppmꢀ/C
250mW
Power Rating
Operating Temperature Range
-55/C to +125/C
Environmental Data
Tolerance
∆ Impedance
0.2ꢁ
Test Condition
Attenuation
Short Time Overload
Load Life
2.5 x rated voltage, 5 sec
1000 Hours, 70/C
0.02dB
0.04dB
0.04dB
0.02dB
0.02dB
0.5ꢁ
0.5ꢁ
0.2ꢁ
0.2ꢁ
Moisture Resistance
Temperature Cycle
Resistance to Solder Heat
1000 Hours, 60/C, 95ꢁ
5 Cycles, 125/C High, -55 Low
260/C, 10 sec.
Fulcrum dist: 90mm, Bending width: 3mm
Substrate: Glass epoxy t=1.6mm
Terminal Strength
0.02dB
0.2ꢁ
Solderability
235/C, 3 sec.
>95ꢁ coverage
Insulation Resistance
500V, 1 minute
>1000MW
37
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
© 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
PAT Series Issue October 2006 Sheet 1 of 3