85-20-66 datasheet, PDF - EEWORLD Datasheet

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85-20-66: DescriptionFixed Attenuator, 0MHz Min, 18000MHz Max; CategoryWireless rf/communication Radio frequency and microwave; File Size246KB，1 Pages; ManufacturerCobham PLC

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85-20-66 Overview

Fixed Attenuator, 0MHz Min, 18000MHz Max

85-20-66 Parametric

Parameter Name	Attribute value
Maker	Cobham PLC
Reach Compliance Code	unknown
Other features	TNC-F, I/P POWER-MAX(PEAK)=1000W
Nominal attenuation	20 dB
Characteristic impedance	50 Ω
structure	COAXIAL
Maximum input power (CW)	46.99 dBm
JESD-609 code	e4
Maximum operating frequency	18000 MHz
Minimum operating frequency
Maximum operating temperature	90 °C
Minimum operating temperature	-55 °C
RF/Microwave Device Types	FIXED ATTENUATOR
Terminal surface	GOLD
Maximum voltage standing wave ratio	1.3
Base Number Matches	1

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Models 85 & 86

Medium Power Fixed Coaxial Attenuators

Conduction Cooled, 3.5mm or TNC Connectors

WEIGHT:

dc to 18.0/22.0 GHz

50 Watts

Model 85:

Model 86:

68 g (2.4 oz.) maximum

60 g (2.1 oz.) maximum

PHYSICAL DIMENSIONS:

Model 85 (TNC):

Features

Compact Construction -

Lowest size/power ratio.

Precision Connectors with high temperature

support beads.

Designed to meet environmental requirements of

MIL-A-3933.

Ideal for Airborne or Space Applications.

Specifications

NOMINAL IMPEDANCE:

Ω

FREQUENCY RANGE:

Model 85:

Model 86:

dc to 18.0 GHz

dc to 22.0 GHz

MAXIMUM DEVIATION OVER FREQUENCY:

Nominal ATTN (dB)

3, 6, 10, 20, 30

MAXIMUM SWR:

Frequency (GHz)

dc - 18.0

dc - 22.0

Model

SWR

1.30

Deviation (dB)

+ 0.80

Connector

TNC Male

TNC Female

DIM A

18.4+0.25 (0.744+0.01)

13.8+0.25 (0.546+0.01)

Model 86 (3.5mm):

+ 0.70

POWER RATING

50 watts

average (bi-directional),

1 kilowatts

peak

µsec

pulse width; 0.5 % duty cycle) with

case temperature held within

90 °C maximum

with appro-

priate conductive heat sink.

POWER COEFFICIENT:

<0.0006 dB/dB/watt

TEMPERATURE COEFFICIENT:

<0.0004 dB/dB/°C

TEMPERATURE RANGE:

-55°C to 90°C (case)

CONNECTORS: Model 85:

TNC connectors mate nonde-

structively with MIL-C-39012 connectors.

Model 86:

3.5mm connectors - mate nondestructively with

SMA per MIL-C-39012, 2.92mm and other 3.5mm connec-

tors.

Description

85 Options

Description

Options

3.5mm Female

3.5mm Male

TNC Female

TNC Male

NOTE:

Connector

3.5mm Male

3.5mm Female

DIM A

13.4+0.5 (0.53+0.02)

9.9+0.5 (0.32+0.02)

All dimensions are given in mm (inches) and are

nominal, unless otherwise specified.

MODEL NUMBER DESCRIPTION:

Example:

86 - XX - XX

Basic

Model

Number

Attenuation

Value (dB)

Connector Options

1st digit is input side

2nd digit is output side

CONSTRUCTION:

Aluminum body, stainless steel

connectors; gold plated beryllium copper contacts.

5305 Spectrum Drive, Frederick, MD 21703-7362 TEL: 301-846-9222, 800-638-2048

web: www.weinschel.com email: sales@weinschel.com

Fax: 301-846-9116

7/8/04

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