K1109 Datasheet and Replacement

UNISONIC TECHNOLOGIES CO., LTD K1109 N-CHANNEL JFET N-CHANNEL JFET FOR ELECTRET CONDENSER MICROPHONE DESCRIPTION The UTC K1109 is N-channel JFET for electrets condenser microphone. FEATURES * High GM Implies Low Transfer loss * Built-In Gate-Source Diode and Resistor Implies Fast Power on Settling Time ORDERING INFORMATION Ordering Number Pin Assignment Package

DATA SHEETJUNCTION FIELD EFFECT TRANSISTOR2SK1109N-CHANNEL SILICON JUNCTION FIELD EFFECT TRANSISTORFOR IMPEDANCE CONVERTER OF ECMDESCRIPTIONPACKAGE DRAWING (Unit: mm) The 2SK1109 is suitable for converter of ECM.0.8FEATURES Compact package1. Source High forward transfer admittance2. Drain3. Gate1000 S TYP. (IDSS = 100 A)1 21600 S TYP. (IDSS = 200

UTC K1109 JUNCTION FIELD EFFECT TRANSISTORN-CHANNEL JFET FORELECTRET CONDENSERMICROPHONE1 2DESCRIPTION The UTC K1109 is N-channel JFET for electretcondenser microphone.3FEATURES*High gm implies low transfer loss*Built-in gate-source diode and resistor implies fastTOP VIEW power on settling timeSOT-23 1:SOURCE 2:DRAIN 3:GATEABSOLUTE MAXIMUM RATINGS ( Operating tem

SMD Type MOSFETN-Channel Junction Field Effect Transistors2SK1109SOT-23Unit: mm+0.12.9 -0.1+0.10.4 -0.13 Features VDS (V) = 20V ID = 10m A1 2 High forward transfer admittance+0.1+0.050.95 -0.1 0.1 -0.01+0.11.9-0.11000 s TYP. (IDSS = 100 A)1600 s TYP. (IDSS = 200 A) Includes diode and high resistance at G - S1. Drain2. So