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http://www.datasheetarchive.com/semiconductors/specsheet.php?specsheet=408081
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Part Number = AT309PIN
Description = Bias-Controlled Microwave-RF Attenuator
Manufacturer = M/A-COM Inc
Form = T Atten.
Maximum Bandwidth (Hz) = 2G
Maximum Insertion Loss (dB) = 1.4
@ Freq. (Hz) = 2G
Compression Point Typ (dBm) = 5
Semiconductor Material = GaAs
P(in) Max. (dBm) = 30
Package = SO
Pins = N/A