QS6K21FRA Datasheet 45V Nch+Nch Small Signal MOSFET llOutline SOT-457T V 45V DSS SC-95 R (Max.) 420m DS(on) TSMT6 I 1.0A D P 1.25W D llFeatures llInner circuit 1) Low on - resistance 2) Built-in G-S Protection Diode 3) Small Surface Mount Package (TSMT6) 4) Pb-free lead plating RoHS compliant 5) AEC-Q101 Qualified llPackaging specifications Embossed Packing Tape llApplication Reel size (mm) 180 Switching Tape width (mm) 8 Type Basic ordering unit (pcs) 3000 Taping code TR Marking K21 llAbsolute maximum ratings (T = 25C ,unless otherwise specified) <Tr1 and Tr2> a Parameter Symbol Value Unit V Drain - Source voltage 45 V DSS Continuous drain current I 1.0 A D *1 I Pulsed drain current 2.0 A DP Gate - Source voltage V 12 V GSS *2 P 1.25 D Power dissipation (total) W *3 P 0.95 D Junction temperature T 150 j T Operating junction and storage temperature range -55 to +150 stg www.rohm.com 1/11 20170223 - Rev.002 2017 ROHM Co., Ltd. All rights reserved. QS6K21FRA Datasheet llThermal resistance Values Parameter Symbol Unit Min. Typ. Max. *2 R - - 100 thJA Thermal resistance, junction - ambient (total) /W *3 R - - 132 thJA llElectrical characteristics (T = 25C) <Tr1 and Tr2> a Values Parameter Symbol Conditions Unit Min. Typ. Max. Drain - Source breakdown V V = 0V, I = 1mA 45 - - V (BR)DSS GS D voltage V (BR)DSS I = 1mA D Breakdown voltage - 46.8 - mV/ temperature coefficient T referenced to 25 j Zero gate voltage I V = 45V, V = 0V - - 1 A DSS DS GS drain current Gate - Source I V = 0V, V = 12V - - 10 A GSS DS GS leakage current Gate threshold V V = 10V, I = 1mA 0.5 - 1.5 V GS(th) DS D voltage V I = 1mA GS(th) D Gate threshold voltage - -3.9 - mV/ temperature coefficient T j referenced to 25 V = 4.5V, I = 1.0A - 300 420 GS D Static drain - source *4 R V = 4.0V, I = 1.0A - 310 435 m DS(on) GS D on - state resistance V = 2.5V, I = 1.0A - 415 585 GS D R Gate resistance f = 1MHz, open drain - 11 - G Forward Transfer *4 Y V = 10V, I = 1A 1.2 - - S fs DS D Admittance *1 Pw10s , Duty cycle 1% *2 Mounted on a ceramic board (30300.8mm) *3 Mounted on a FR4 (25250.8mm) *4 Pulsed www.rohm.com 2017 ROHM Co., Ltd. All rights reserved. 2/11 20170223 - Rev.002