88

High Power Fixed Attenuators (Heat sink Mounting Type)

AT-1200 and AT-1300 Series

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

AT-1320-H • J

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

-10ç to +65ç

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 µs or more

No damage, cracks, or parts dislocation

No damage, cracks, or parts dislocation

Frequency of 10 to 2000 Hz, overall amplitude of 1.52 mm,

3 cycles in each of the 3 axis

Temperature: -55ç ¡ +5ç to +35ç ¡ +85ç ¡ +5ç to +35ç

Time: 30 ¡ 15 max. ¡ 30 ¡ 15 max. (Minutes)

200 cycles

qThe test method conforms to MIL-STD-202.

Part

Connector Body

Stainless steel

Passivated

Conductive white alumite

Gold plating

Body

Female contacts

Insulation

Attenuation element

Aluminum

Beryllium copper

PTFE

Metal film

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Material

Finish

1

2

3

AT - 12 10 - H

•• J

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

H • J : SMA type jack - jack

N • H :

N type jack - SMA type jack

3

4

4