High Frequency
Surface Mount Attenuators
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
IRC Advanced Film Division
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
Impedance
Frequency Range
VSWR
Attenuation
Attenuation Tolerance
TCR
Power Rating
Operating Temperature Range
50W
DC to 10 GHz
1.3
0, 1, 2, 3, 4, 5, 6,
7, 8, 9, 10dB
±0.3dB
±50ppm/°C
100mW
PAT1632
50W
DC to 3GHz
1.3
0, 1, 2, 3, 4, 5,
6, 7, 8, 9, 10, 16dB
0 to 10dB: ±0.3dB
16dB: ±0.5dB
±50ppm/°C
125mW
-55°C to +125°C
PAT3042SC
50W
DC to 3GHz
1.2
PAT3042SD
75W
DC to 2GHz
1.3
0, 1, 2, 3, 4, 5,
6, 7, 8, 9, 10, 16, 20dB
0 to 10dB: ±0.3dB
16, 20dB: ±0.5dB
±25ppm/°C
250mW
Environmental Data
Test Condition
Short Time Overload
Load Life
Moisture Resistance
Temperature Cycle
Resistance to Solder Heat
Terminal Strength
Solderability
Insulation Resistance
2.5 x rated voltage, 5 sec
1000 Hours, 70°C
1000 Hours, 60°C, 95%
5 Cycles, 125°C High, -55 Low
260°C, 10 sec.
Fulcrum dist: 90mm, Bending width: 3mm
Substrate: Glass epoxy t=1.6mm
235°C, 3 sec.
500V, 1 minute
37
A subsidiary of
TT electronics plc
PAT Series Issue October 2006 Sheet 1 of 3
Tolerance
Attenuation
±0.02dB
±0.04dB
±0.04dB
±0.02dB
±0.02dB
±0.02dB
∆
Impedance
±0.2%
±0.5%
±0.5%
±0.2%
±0.2%
±0.2%
>95% coverage
>1000MW
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.
© 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
High Frequency
Surface Mount Attenuators
Physical Data
L
a
W1
a
IRC Advanced Film Division
Dimensions (mm)
t
a1
4
b1
a1
L
W
t
b3
3
a
b
W1
2
b
W3
5
b
b2
W2
W3
b1
2.00 ±0.10
1.25 ±0.10
0.40 ±0.10
0.50 ±0.20
0.60 ±0.20
0.40 ±0.20
0.40 ±0.20
0.35 ±0.20
0.70 ±0.10
0.50 ±0.10
0.70 ±0.10
0.80 ±0.10
2.30 ±0.10
1
PAT1220
W2
1
0
W
K
b3
b2
b3
W3
a2
a1
a2
1: Electrode (surface soldering and lead-free possible) 2: Covering resin 3: Alumina substrate 4: Thin film resistor 5: Mark (shows impedance, attenuations and date)
L
a
W1
a
t
Dimensions (mm)
a1
b1
a1
L
W
b3
3.20 ±0.20
1.60 ±0.20
0.40 ±0.10
1.00 ±0.25
1.00 ±0.20
0.55 ±0.25
0.40 ±0.25
0.40 ±0.20
1.00 ±0.20
0.65 ±0.20
0.80 ±0.10
1.20 ±0.20
3.40 ±0.20
C01
W2
W
4
3
b2
t
a
b
W1
W2
PAT1632
2
b
W3
5
b
b3
W3
b1
a2
W3
b2
b3
a1
a2
1: Electrode (surface soldering and lead-free possible) 2: Covering resin 3: Alumina substrate 4: Thin film resistor 5: Mark (shows impedance, attenuations and date)
L
t
a1
b1
a1
Dimensions (mm)
C (50W)
b3
D (75W)
4.20 ±0.20
3.00 ±0.20
0.80 ±0.15
0.80 ±0.20
0.50 ±0.20
3.10 ±0.20
1.05 ±0.20
0.95 ±0.20
0.95 ±0.20
0.80 ±0.20
0.95 ±0.20
0.90 ±0.20
0.95 ±0.20
0.30 ±0.20
3.50 ±0.20
1.55 ±0.20
1.55 ±0.20
0.55 ±0.20
0.60 ±0.20
0.55 ±0.20
0.60 ±0.20
1.55 ±0.20
W1
Wa
C07
2
5
a
L
W
W
4
3
b2
t
a
b3
b
Lb
a2
C (50W)
b1
b2
2.90 ±0.20
0.90 ±0.20
1.10 ±0.20
1.20 ±0.20
5.30 ±0.20
D (75W)
3.30 ±0.20
1.10 ±0.20
1.00 ±0.20
1.00 ±0.20
5.30 ±0.20
Wa
Wb
W1
W2
W3
W4
Wb
PAT3042S
W2
W3
Wb
K
a
b
Lb
b
W4
b3
a1
a2
1: Electrode (surface soldering and lead-free possible) 2: Covering resin 3: Alumina substrate 4: Thin film resistor 5: Mark (shows impedance, attenuations and date)
© 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
38
PAT Series Issue October 2006 Sheet 2 of 3
High Frequency
Surface Mount Attenuators
Power Derating Curve
% of Rated Power
100
IRC Advanced Film Division
Schematic Diagram Data
1
2
60
0
25°
Ambient Temperature (°C)
Temperature in °C
70°
125°
3
3
3
1
2
Ordering Data
Prefix
Model
PAT1220; PAT1632; PAT3042SD (75W);
PAT3042SC(50W)
HFR - PAT1220 - C - 3dB - T(5)
3
3
Attenuation
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 16, 20dB
Impedence
C = 50W; D = 75W
Package
T=Tape, B=Bulk, Taping Quantity Unit:5 (5000), 1 (1000)
© 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
39
PAT Series Issue October 2006 Sheet 3 of 3
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