High Power Resistive Products
Attenuators
AVX introduces its line of High Power Attenuator Products.
All products are designed and manufactured at our ISO 9001
Facilities. All products are tested in accordance with MIL-
PRF-55342.
ELECTRICAL SPECIFICATIONS
Attenuation:
1 dB through 30 dB
Frequency Range:
DC to 3 GHz
Input Power:
up to 150 Watts
Operating Temperature Range:
-55ºC through +150ºC
MECHANICAL SPECIFICATIONS
Package:
Leaded and Flange Mounted
Substrate Material:
Aluminum Nitride
Process:
100% Thin Film Processed
Resistive Material:
Tantalum Nitride
Terminals:
100% Ag
Cover:
Alumina
Mounting Flange:
100% Cu, Ni or Ag Plated
RoHS Compliant
HOW TO ORDER
RP2 3740
A
AVX
Series
RP1
RP2
Case Size
3740
0975
Type
A = Attenuator
01DB
F
P
BK
Nominal
Attenuation
(dB)
See chart
Tolerance
F = 1%
Plating
P = Palladium
Packaging
BK = Bulk
Contact factory for custom ratings and sizes.
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
2