ATC
Style FA1
HIGH
POWER
RESISTIVE
PRODUCTS
High Power Flange Mount Attenuators
General Specifications
•
Frequency Range:
DC to 3 GHz
•
Input Power*:
150 Watts
•
Operating Temp Range:
-55 to +150˚C
•
Attenuation Stability**:
0.0001 dB/dB/°C, Max.
•
Mounting Flange:
Copper, Pd over Ni;
other platings available
•
Resistive Elements:
Tantalum Nitride
•
Substrate Material:
Aluminum Nitride
•
Tabs:
99.99% Pure Silver, .004 inches thick,
Cover: Alumina
•
RoHS Compliant
•
Reliability:
MIL-PRF-55342
.975 (24.77 mm)
.725 MIN. (18.4 mm)
.400 (10.16 mm)
.125
(3.18 mm)
xx denotes attenuatiion
.225 MAX.
(5.76 mm)
.125
(3.18 mm)
Mechanical Tolerance:
±.010 inch
unless otherwise specified
.188
(4.76 mm)
.375
(9.53 mm)
.125 THRU
(3.18 mm)
.170
(4.32 mm)
.040 TYP.
(1.02 mm)
.290 TYP.
(7.36 mm)
.250 TYP.
(6.35 mm)
.004
(.101 mm)
.305 ± .005
(7.75 mm ±.127 mm)
.670 (17.02 mm)
ATC
Part Number
Nominal
Attenuation (dB)
Frequency
Sensitivity (dB, max.)
Maximum Deviation
from Nominal (dB)
VSWR
(max.)
1.55:1
1.50:1
1.50:1
1.40:1
1.30:1
1.40:1
1.30:1
1.30:1
1.25:1
FA10975P01DBFBK
1
± 0.25
+0.45 / -0.15
FA10975P02DBFBK
2
±0.30
+0.50 / -0.30
FA10975P03DBFBK
3
± 0.30
+0.60 / -0.30
FA10975P06DBFBK
6
± 0.45
+0.80 / -0.20
FA10975P09DBFBK
9
± 0.35
+0.70 / -0.20
FA10975P10DBFBK
10
± 0.20
+0.40 / -0.30
FA10975P17DBFBK
17
± 1.00
+1.00 / -1.20
20
± 1.00
+1.00 / -1.20
FA10975P20DBFBK
30
± 1.05
+1.75 / -1.20
FA10975P30DBFBK
For Attenuator Power Handling vs. Mounting Surface Temperature, see following page.
ATC Flange Mount Attenuators
Part Number Code
FA1 0975 P 01DB F BK
Case Style
Case Size
Termination
Packaging
BK - Plastic Carrier
Tolerance
F ±1%
Value
A M E R I C A N
ATC North America
sales@atceramics.com
T E C H N I C A L
ATC Europe
saleseur@atceramics.com
C E R A M I C S
ATC Asia
sales@atceramics-asia.com
w ww.at c e r a mic s .c om
ATC
HIGH
POWER
RESISTIVE
PRODUCTS
Attenuator Power Handling vs. Mounting Surface Temperature
350
300
250
Power Handling (Watts)
Notes:
1. Plot refers to incident continuous power of “P” Watts
2. Mounting surface is assumed an isotherm at T
M
°C
3. Actual testing done at P = 100 Watts, T
M
= 100 °C
4. Plot based on 1-dimensional heat transfer formula: T = T
M
+ PR, where
T = area-average resistive film temperature, held to 150 °C, max.
R = thermal resistance, mounting surface to resistive film
≈
0.5 °C/W
for 30- and 20- dB devices (other values will run cooler and therefore
handle more power – consult factory)
200
150
100
50
0
0
25
50
75
100
125
150
Mounting Surface Temperature (°C)
* Test Condition: With mounting surface temperature = 75 °C, max. (see plot above). Actual test conditions are as follows:
Flange attached to a large copper carrier whose surface, directly under the flange center, is held at 100 °C; power
applied = 100 Watts. Specification: The attenuation shall change no more that 0.2 dB during and after a 100-hr.
Burn-in per MIL-PRF-55342.
** Attenuation vs. frequency as a function of temperature, -55°C to +125°C
Sales of ATC products are subject to the terms and conditions contained in American Technical Ceramics Corp. Terms and Conditions of Sale (ATC document #001-992 Rev. B 12/05).
Copies of these terms and conditions will be provided upon request. They may also be viewed on ATC's website at www.atceramics.com/productfinder/default.asp. Click on the link
for Terms and Conditions of Sale.
ATC has made every effort to have this information as accurate as possible. However, no responsibility is assumed by ATC for its use, nor for any infringements of rights of third
parties which may result from its use. ATC reserves the right to revise the content or modify its product without prior notice.
© 2012 American Technical Ceramics Corp. All Rights Reserved.
Excerpt from ATC # 001-944; Rev. S, 1/14
A M E R I C A N
ATC North America
sales@atceramics.com
T E C H N I C A L
ATC Europe
saleseur@atceramics.com
C E R A M I C S
ATC Asia
sales@atceramics-asia.com
w ww.at c e r a mic s .c om
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