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TFA (TH) VHF/UHF THROUGH
HOLE ATTENUATORS

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these ARE RF attenuators with 50, 75, 300and 600 characteristic impedances For through hole applications.
SIP and DIP Long life and temperature stability is achieved with Ni-Cr thin film and alumina substrates. The TFA series
will be useful in isolation circuits, data transmission, mobiles, RF applications and measurements.

GENERAL SPECIFICATIONS

Model Impedance [ohm] Impedance [dB] Frequency Power
TFA-50TF 50 1,2,3,4,5,6,7,8,
9,10,16, 20,30
DC-100MHz 0.25W
TFA-75TF 75
TFA-300TF 300
TFA-600TF 600
TFA-50T 50 1,2,3,4,5,6,7,8,9,
10,16, 20,30,40
0.5W
TFA-75T 75
TFA-300T 300
TFA-600T 600
TFA-50TS 50
TFA-300B 75
TFA-600B 300
TFA-85FD 50 DC-200MHz
TFA-85FC 75

CHARACTERISTICS

Items

Specifications

Test Conditions

Characteristic Impedance

+-1%(F)

Input DC R in terminating output port with prec. resistor

Tolerance of Attenuation

+-1%

See Note 1

TCR of Impedance

+/- 50ppm/C

TCR of input DC R in terminating output port with prec. resistor

TCR of Attenuation

+/- 50ppm/C

See Note 2

Soldering Heat

+-1%

350C, 3 seconds, dipping

Soldering capability

75% covered

350C, 3 seconds,

Humidity

+-1%

40C, 95%RH, DC0.1W, 1000H
Load Life +-1% 70C, 90min. ON, 30min. OFF, 100H

Note 1:  Output Dc volt in terminating output port with precision resistor; 1V stable DC source connected to input port.
Note 2:  Output Dc volt TCR in terminating output port with precision resistor; 1V stable DC source connected to input port.

ORDERING INFORMATION

Ordering P/N

Attenuation

Tolerance of
Impedance

TFA-50T6dBF

-6dB

F(1%)

TFA-75T12dBF

-12dB

F(1%)

TFA-600T20dBF

-20dB

F(1%)

DIMENSIONS

Copyright©, RARA Electronics Corporation
Tel:82-32-817-4325 Fax:82-32-817-4329

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