
81
High Power Fixed Attenuators (Heat sink Mounting Type)
AT-1200 and AT-1300 Series
sFeatures
1.Small Size and Economical
Beryllia is used for the material of the resistance
element to enable the attenuation to be of small
size and low cost.
2.High Power Capacity
Mounting these attenuators to a heat sink permits the
AT-1200 Series to be used at up to 30 W and the AT-
1300 Series to be used at up to 50 W.
3.High Reliability
These attenuators show stable characteristics for
environments of varying temperature, humidity, and
gases.
AT-1210-H J(40)
AT-1320-H J(40)
sProduct Specifications
Ratings
Frequency range (Note)
Characteristic impedance
Maximum Input Power (Note)
DC to 2.0 GHz
50 ohms
30 to 50 W
Operating temperature range
Operating relative humidity
–10 to +65
95% Max.
Note: The frequency range and the maximum input power will differ depending on the products.
Item
Standard
Conditions
1.Vibration
2.Shock
3.Temperature cycle
No electrical discontinuity of 1 s or more
No damage, cracks, or parts dislocation
Frequency of 10 to 2000 Hz, overall amplitude of 1.52 mm,
acceleration of 98 m/s2 for 2 hours in each of 3 directions
Acceleration of 490 m/s2, sine half-wave waveform,
3 cycles in each of the 3 axis
Temperature: -55 +15 to +35 +85 +15 to +35
Time: 30 15 max. 30 15 max. (Minutes)
5 cycles
qThe test method conforms to MIL-STD-202.
sMaterials
Part
Connector Body
Stainless steel
Passivated
Conductive white alumite
Gold plating
Body
Female contacts
Insulation
Attenuation element
Aluminum
Beryllium copper
PTFE
Metal film
----------
Material
Finish
sOrdering Information
1
2
3
AT - 12 10 -H
J (40)
AT: Indicates a fixed attenuator
Indicates the Series Name
(Maximum Usable Power)
12: HRM type plug - jack 30W
13:
N type plug - jack 50W
1
2
Attenuation
10 : 10dB
20 : 20dB
Coupling Portion
HJ : SMA type jack - jack
NH : N type jack - SMA type jack
(40): RoHS Compliant
3
4
5
4
5
The product information in this catalog is for reference only. Please request the Engineering Drawing for the most current and accurate design information.
All non-RoHS products have been discontinued, or will be discontinued soon. Please check the products status on the Hirose website RoHS search at www.hirose-connectors.com, or contact your Hirose sales representative.
04/2009