E-TA Datasheet, PDF (1/5 Pages) Copal Electronics – THERMAL VARIABLE ATTENUATORS

E-TA THERMAL VARIABLE ATTENUATORS
˙
FEATURES
OFlat VSWR characteristic to the temperature change.
OLinear attenuation characteristic to temperature fluctuation.
ORoHS compliant.
˙
APPLICATIONS
O Temperature compensation of microwave high power
amplifier.
˙
SPECIFICATIONS
OElectrical characteristics
Attenuation
Tolerance
Impedance
VSWR
E-TA3216
1, 2, 3, 4, 5 dB
at 25 °C
DC ~ 3 GHz : +0.5 dB, DC ~ 1 GHz : -0.5 dB
1 ~ 3 GHz : -1.0dB (at 25 °C, 50 Ω load)
50 Ω
DC ~ 2 GHz : Less than 1.3
2 ~ 3 GHz : Less than 1.7
(at 25 °C)
E-TA2012
1, 2, 3, 4, 5, 6, 7, 8, 9, 10 dB
at 25 °C
± 0.5 dB
(at 25 °C, 50 Ω load)
Less than 1.3
(at 25 °C)
Temperature Coefficient
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Please refer to the chart of “Example of Attenuation vs. Temperature” Please refer to the chart of “Example of Attenuation vs. Temperature”
Frequency Range
Power Rating
Operating Temperature Range
100 mW
DC ~ 3 GHz
– 40 °C ~ +100 °C
OTemperature Characteristics
TCA : Temperature Coefficient of Attenuation N1 ~ N8 (dB/dB/°C)
N1 ; – 0.0119
N4 ; – 0.0047
N7 ; – 0.0026
N2 ; – 0.0088
N5 ; – 0.0041
N8 ; – 0.0019
N3 ; – 0.0062
N6 ; – 0.0035
Note. Temperature coefficient of E-TA3216 is N5 ~ N8 and E-TA2012 is N1 ~ N8.
63 mW
˙ PART NUMBER DESIGNATION
E-TA2012 T 1 dB N8
Series name and size
E-TA3216, E-TA2012
Form of packaging
T : Taping (1000 pcs/reel)
Blank : Bulk (100 pcs/in plastic bags)
Temperature Coefficient of Attenuation
(N1, N2, N3, N4, N5, N6, N7, N8)
Attenuation [dB]
(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)