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| UTC K1109 JUNCTION FIELD EFFECT TRANSISTOR N-CHANNEL JFET FOR ELECTRET CONDENSER MICROPHONE DESCRIPTION The UTC K1109 is N-channel JFET for electret condenser microphone. 2 1 FEATURES *High gm implies low transfer loss *Built-in gate-source diode and resistor implies fast power on settling time 3 SOT-113 1: SOURCE 2: DRAIN 3: GATE ABSOLUTE MAXIMUM RATINGS ( Operating temperature range applies unless otherwise specified ) PARAMETER Drain-Source Voltage Gate-Drain Voltage Drain Current Gate Current Total Power Dissipation Junction Temperature Storage Temperature SYMBOL VDSX VGDO ID IG PT Tj TSTG VALUE 20 -20 10 10 80 125 -55 ~ +125 UNIT V V mA mA mW C C ELECTRICAL CHARACTERISTICS (Tj=25C, unless otherwise specified) PARAMETER Drain Current Gate Off Voltage Forward Transfer Admittance Forward Transfer Admittance Input Capacitance Noise Voltage SYMBOL IDSS VGS(OFF) lYFS1l lYFS2l Ciss NV TEST CONDITIONS VDS=5.0V,VGS=0 VDS=5.0V,ID=1.0A VDS=5.0V,ID=30A,f=1kHz VDS=5.0V, VGS=0,f=1kHz VDS=5.0V,VGS=0,f=1.0MHz MIN 40 -0.1 350 350 TYP MAX 600 -1.0 UNIT A V S S pF V 480 1600 7.0 1.8 8.0 3.0 CLASSIFICATION OF IDSS RANK RANGE J34 90-180 J35 150-300 J36 200-450 UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R210-002,A UTC K1109 JUNCTION FIELD EFFECT TRANSISTOR NOISE VOLTAGE TEST CIRCUIT +4.5V 1K FILTER NV r.m.s. 10pF UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R210-002,A |
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