ATTENUATOR
TEMPERATURE VARIABLE
DATA SHEET
FEATURES
Temperature Variable
Compact Package
Wideband Performance
Passive Gain Compensation
Rugged Construction
MIL-PRF-3933
PART SERIES: TVAXX00XXXS
APPLICATIONS
Power Amplifiers
Instrumentation
Mobile Networks
Point-to-Point Radios
Satellite Communications
Military Radios
Up/Down Converters
®
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GENERAL DESCRIPTION
EMC Technology is the leading authority in temperature variable attenuators. Thermopad temperature variable attenuators have been a
®
highly reliable passive solution for over temperature gain compensation for more than 20 years. All Thermopad products can be qualified
for high-reliability and space applications.
ORDERING INFORMATION
Part Identifier:
TVAXX00XXXS
XX-Temperature Coefficient of Attenuation 1 x 10
-3
dB/dB/°
C
X-Attenuation Shift Negative or Positive
XX-dB Value
SPECIFICATIONS
1.0 ELECTRICAL
Nominal Impedance:
Frequency Range:
Attenuation Values Available:
Attenuation Accuracy:
VSWR:
Input Power
50 ohms
DC-6 GHz
1-10 dB in 1 dB increments
@ 25ºC: ± 0.5 dB @ 1 GHz
1.30:1 Max @ 1 GHz
Negative Shifting: 2 watts cw.
Positive Shifting: 0.25 watts cw.
Full Rated Power to 125°C, Derated Linearly to 0 watts @ 150°C.
Temperature Coefficient of Attenuation: -0.003, -0.004, -0.005, -0.006, -0.007, and -0.009 dB/dB/ºC
0.003, 0.005, 0.006, and 0.007 dB/dB/ºC
Temperature Coefficient Tolerance:
± 0.001 dB/dB/ºC
2.0 ENVIRONMENTAL
Operating Temperature:
-55˚C to +150˚C
3.0 MARKING
Unit Marking:
dB value (X), direction of shift (N or P) and TCA shift (X).
4.0 QUALITY ASSURANCE
Sample Inspect Per ANSI/ASQC Z1.4 General Inspection, Level II, AQL=1.0.Visual and Mechanical Examination for Conformance
to Outline Drawing Requirements
Sample Inspection (Destructive Testing).
Select three (3) units from lot and measure DCA every 20ºC over the temperature range of
-55° to +125° Calculate using linear regression, the slope of the curve.
C
C;
Form 423F119
Cage Codes: 24602 / 2Y194
Specifications are Subject to Change Without Notice
www.emc-rflabs.com • +1 772-286-9300
AS 9100, ISO 9001 and 14001 Certified
ATTENUATOR
TEMPERATURE VARIABLE
DATA SHEET
PART SERIES: TVAXX00XXXS
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Calculate TCA using the following formula:
=
Inspection in accordance with 824W107
Test Data Requirements:
No Data Required for Customer
Data Retention – 24 Months
@ 25°
5.0 PACKAGING
Standard:
Tape and Reel
6.0 MECHANICAL
Substrate Material:
Terminal Material:
Workmanship
Resistive Element:
Metric Dimensions:
Alumina, 96% MIL-I-10
Thick Film, Nickel Barrier, Solder Coated
Per MIL-PRF-55342
Thick Film
Provided for reference only
unless Otherwise Specified: TOLERANCE: X.XXX = ± 0.005
Dimensions apply before solder allow 0.015 max for pretinned surfaces
Form 423F119
Cage Codes: 24602 / 2Y194
Specifications are Subject to Change Without Notice
www.emc-rflabs.com • +1 772-286-9300
AS 9100, ISO 9001 and 14001 Certified
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