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UTC K1109 JUNCTION FIELD EFFECT TRANSISTOR
N-CHANNEL JFET FOR
ELECTRET CONDENSER
MICROPHONE
1 2
DESCRIPTION
The UTC K1109 is N-channel JFET for electret
condenser microphone.
FEATURES 3
*High gm implies low transfer loss
*Built-in gate-source diode and resistor implies fast
TOP VIEW
power on settling time
SOT-23
1:SOURCE 2:DRAIN 3:GATE
ABSOLUTE MAXIMUM RATINGS ( Operating temperature range applies unless otherwise specified )
PARAMETER SYMBOL VALUE UNIT
Drain-Source Voltage VDSX 20 V
Gate-Drain Voltage VGDO -20 V
Drain Current ID 10 mA
Gate Current IG 10 mA
Total Power Dissipation PT 80 mW
Junction Temperature Tj 125