5305 Spectrum Drive, Frederick, MD 21703-7362

s TEL: 301-846-9222, 800-638-2048 s Fax:

301-846-9116 web: www.weinschel

.apitech.com s email: weinschel-sales@apitech.com

138

Revision Date:

08/03/2016

Variable Attenuators

Model 3056

dc to 3.0 GHz

RF Manual Step Attenuator

1 Watt

SMA Connectors

Features

o Rotational Stops Included

o Cost Effective OEM Design - Optimized for Wireless

Communication System Applications.

o Custom Designs Available

Specifications

NOMINAL IMPEDANCE:

50

Ω

FREQUENCY RANGE:

dc to 3.0 GHz

ATTENUATION RANGE/STEPS: 0-10 dB in 1.0 dB steps

TEMPERATURE RANGE: -20 °C to +85 °C

POWER RATING: 1 watt average @ 25°C ambient

temperature, derated linearly to 0.25 watt @ 85°C. 100

watts peak (5

μsec pulse width; 0.5 % duty cycle).

CONNECTOR: SMA female connector per MIL-STD-348

interface dimensions - mate nondestructively with MIL-C-

39012 connector.

SHAFT ROTATION: Clockwise for increasing attenuation

STEP ANGLE: 30.0°

CONSTRUCTION: Machined aluminum body.

Knob is

included with each unit.

WEIGHT:

Net 110 g (4 oz)

NOTE: Minimum quantities apply. Contact factory or local

sales representative for more information.

ATTENUATION ACCURACY (dB):

Frequency (GHz)

Accuracy

dc - 3.0

+ 0.30 dB

MAXIMUM SWR & INSERTION LOSS:

Frequency (GHz)

SWR

Loss (dB)

dc-1.0

1.15

0.15

1.0-2.0

1.20

0.20

2.0-3.0

1.35

0.25

31.8 [1.25]

n

REF.

5.8 [.23]

7.7 [.31]

n

6.3 [.25]

SHAFT

14.0 [.55]

27.9 [1.10]

2X 6-32 UNC-2B

X 6.35[.250] DP

KNOB IS NOT SHOWN

THIS VIEW ONLY

16.8 [.66]

REF.

46.3 [1.82]

9.6 [.38]

13.2 [.52]

15.6 [.62]

9.7 [.38]

38.1 [1.50]

n

2X CONNECTOR

SMA, FEMALE

MATES NON-DESTRUCTIVELY

WITH SMA MALE CONNECTORS

PER MIL-C-39012

NOTE: All dimensions are given in mm (inches) and are maximum, unless otherwise specified.

PHYSICAL DIMENSIONS:

RoHS