December 2010J309 / J310 / MMBFJ309 / MMBFJ310N-Channel RF AmplifierFeatures This device is designed for VHF/UHF amplifier, oscillator and mixer applications. As a common gate amplifier, 16 dB at 100 MHz and 12 dB at 450 MHz can be realized. Sourced from Process 92. Source & Drain are interchangeable.J309 MMBFJ309J310 MMBFJ310GSSOT-23G TO-92 Mark MMBFJ309

J/SST/U308 SeriesVishay SiliconixN-Channel JFETsJ308 SST308 U309J309 SST309 U310J310 SST310PRODUCT SUMMARYPart Number VGS(off) (V) V(BR)GSS Min (V) gfs Min (mS) IDSS Min (mA)J308 -1 to -6.5 -25 8 12J309 -1 to -4 -25 10 12J310 -2 to -6.5 -25 8 24SST308 -1 to -6.5 -25 8 12SST309 -1 to -4 -25 10 12SST310 -2 to -6.5 -25 8 24U309 -1 to -4 -25 10 12U310 -2.5 to -6 -25 10

J/SST/U308 SeriesN-Channel JFETsJ308 SST308 U309J309 SST309 U310J310 SST310Product SummaryPart Number VGS(off) (V) V(BR)GSS Min (V) gfs Min (mS) IDSS Min (mA)J308 1 to 6.5 25 8 12J309 1 to 4 25 10 12J310 2 to 6.5 25 8 24SST308 1 to 6.5 25 8 12SST309 1 to 4 25 10 12SST310 2 to 6.5 25 8 24U309 1 to 4 25 10 12

MOTOROLAOrder this documentSEMICONDUCTOR TECHNICAL DATAby MMBFJ309LT1/DJFET VHF/UHF Amplifier TransistorMMBFJ309LT1NChannel2 SOURCEMMBFJ310LT13GATE1 DRAIN31MAXIMUM RATINGS2Rating Symbol Value UnitDrainSource Voltage VDS 25 VdcCASE 31808, STYLE 10GateSource Voltage VGS 25 Vdc SOT23 (TO236AB)Gate Current IG 10 mAdcTHERMAL CHARACTERISTICS

DISCRETE SEMICONDUCTORSDATA SHEETPMBFJ308; PMBFJ309;PMBFJ310N-channel silicon field-effecttransistorsProduct specification 1996 Sep 11Supersedes data of April 1995File under Discrete Semiconductors, SC07Philips Semiconductors Product specificationPMBFJ308; PMBFJ309;N-channel silicon field-effect transistorsPMBFJ310FEATURES PINNING - SOT23 Low noisePIN SYMBOL DE

DISCRETE SEMICONDUCTORSDATA SHEETJ308; J309; J310N-channel silicon field-effecttransistorsProduct specification 1996 Jul 30Supersedes data of April 1995File under Discrete Semiconductors, SC07Philips Semiconductors Product specificationN-channel silicon field-effect transistors J308; J309; J310FEATURES PINNING - TO-92 Low noisePIN SYMBOL DESCRIPTION Interchangea

J309, J310Preferred Device JFET VHF/UHF AmplifiersN-Channel DepletionFeatureshttp://onsemi.com Pb-Free Packages are Available*1 DRAINMAXIMUM RATINGSRating Symbol Value Unit3Drain-Source Voltage VDS 25 VdcGATEGate -Source Voltage VGS 25 VdcForward Gate Current IGF 10 mAdc2 SOURCETotal Device Dissipation @ TA = 25C PD 350 mWDerate above = 25C 2.8 mW/

MMBFJ309LT1G,MMBFJ310LT1GJFET - VHF/UHF AmplifierTransistorN-Channelhttp://onsemi.comFeatures2 SOURCE These Devices are Pb-Free, Halogen Free/BFR Free and are RoHSCompliant3GATEMAXIMUM RATINGSRating Symbol Value Unit1 DRAINDrain-Source Voltage VDS 25 VdcGate-Source Voltage VGS 25 VdcGate Current IG 10 mAdc3SOT-23 (TO-236)THERMAL CHARACTERISTICS CASE 31