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**
 
Attenuation Value
25 Watt
 
A
 
M/F = Male/Female
F/F = Female/Female
 
A = SMA
B = BNC
N = N
T = TNC
 
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, N
Frequency Range and VSWR
DC to 1 GHz @ 1.10:1
1 to 4 GHz @ 1.25:1
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 in x 2.3 in dia (135 mm x 59 mm dia)
Weight
9.0 oz (256 g)
Finish
Black Anodized Aluminum