Bird - The RF Experts
25-A Series

25 Watt, Bi-Directional RF Attenuators


25-A Series, 25 Watt RF Power Attenuators are a valuable and reliable accessory for reducing power levels, for isolating components under test, for harmonic signal analysis, and as comparison standards. They are world renowned for their high-quality, robust construction and conservative power ratings.

Features
  • Self cooling design, needs no cooling plate.
  • Frequencies up to 4 GHz.
  • Fully shielded against production of extraneous radiation.
  • Attenuator require no AC power.
  • Rugged construction.
  • Broadband operation.
  • Other attenuation values may be available upon request.
  • Models to cover all LTE frequencies.

Model Nomenclature
 

-
-
-
-
Power Ratings
 
Product Type
 
Connector Gender
 
Connectors**
 
Attentuation Value
25 Watt
 
A
 
M/F - Male/Female
F/F - Female/Female
 
A - SMA
B - BNC
N - N
T - TNC
E - 7/16 DIN
 
03 - 3 dB
06 - 6 dB
10 - 10 dB
20 - 20 dB
30 - 30 dB

 

Example: 25-A-MFN-03 (25 Watt, A Series, Male/Female N Connector, 03 dB)
**Call or Request Information below for custom connector options not shown

product specifications:
Item No
25-A Series
Item Name
25 Watt, Bi-Directional Attenuators
Power Rating
25 W
Connector
SMA, BNC, 7/16 DIN, N
VSWR and Frequency Range
1.10:1 from DC to 1 GHz
1.25:1 from 1 to 4 GHz
Coolant Method
Dry, Convection Cooled
Impedance Ω
50 Ohm
Operating Position
Any
Temperature
-40 to 40 °C (-40 to 104 °F)
PIM
-110 dBc Min.
AC Power
None
Humidity
95% non-condensing
Standard Attenuation Values
3, 6, 10, 20, 30 dB
Dimensions-- L x W x H
5.3” x 2.3” Dia.
135 x 59 Dia. mm
Weight
9.0 oz.
256 g
Finish
Black Anodized Aluminum