NPN Silicon Planar Medium Power Transistor ZTX449 DESCRIPTION The ZTX449 is a high current transistor encapsulated in the popular E-line package. The device is intended for low voltage, high current L.F. applications and features high power dissipation, 1W at 25C ambient temperature, and excellent gain characterisitics up to 2A. The E-line package is formed by transfer moulding a silicone plastic specially selected to provide a rugged one-piece encapsulation resistant to severe environments and allow the high junction temperature operation normally associated with metal can devices. E-line encapsulated devices are approved for use in military, industrial and professional equipments. ABSOLUTE MAXIMUM RATINGS Plastic E-Line (TO-92 Compatible) Alternative lead configurations are available as plug-in replacements of TO-5/39 and TO-18 metal can types and for surface mounting. Complementary to the ZTX549. Parameter Symbol Maximum Unit Collector-base voltage Veso 50 Vv Collector-emitter voltage Vceo 30 Vv Emitter-base voltage Vepo Vv Peak pulse current (see note below) lom 2 A Continuous collector current Ie 1 A Base current lp 200 mA Power dissipation at T,,,, = 25C Prot 1 Ww at Trase = 25C 2 Ww Operating and storage temperature range -55 to +200 c Note: Consult Safe Operating Area graph for conditions. SE41ZTX449 CHARACTERISTICS (at T, amb = 25C unless otherwise stated). Parameter Symbol | Min. | Max. | Units | Test Conditions Collector-base cut-off current lego - 0.1 uA | Vcg=40V - 10 HA | Veg =40V, Tamb = 100C Emitter-base cut-off current lego - 0.1 HA | Veg=4V Collector-emitter saturation Veeisat! - 0.5 Vv ic =1A, |g =0.1A* voltage - 1 Vo | Ile =2A, lg =0.2A* Base-emitter saturation voltage Vee (sat) - 1.25 Vo] le =1A, Ig=0.1A* Base-emitter turn-on time Veeton) ~ 1 Vo le =1A, Vog = 2V* Static forward current transfer Nee 70 - te =50mA, Vee = 2V* rae 100 | 300 le =500mA, Vcog = 2V* 80 ~ lo = 1A, Veg = 2V* 40 - lo = 2A, Vog= 2V* Transition frequency fr 150 - MHz | 1. =50mA, Vee = 10V f = 100MHz Output capacitance Cobo - 15 pF | Veg=10V, f = 1MHz *Measured under pulsed conditions. Pulse width = 300us. Duty cycle <2%. Maximum Dissipation (watts) 55-40 -20 Oo 20 40 60 80 100 120 140 160 180 200 Temperature C Derating curve SE42ZTX449 COLLECTOR CURRENT (Ic) AMPS On 1 10 100 COLLECTOR-EMITTER VOLTAGE (Vc_) VOLTS Safe operating at T,,,,= 25C (single pulse) 16 [e500 " 14 I .10 Ip Base- | Emitter i Saturation 10 r Voltage LA VBE (sat) og | volts Lr] parr 06 |_| LD paeaseeannn 04 O-1mA ImA 1OmA wOmA A 0A Typical base-emitter saturation voltages plotted against collector current SE43ZTX449 0-7 eso 0-6 Ic =10 | | 0-5 Tamb = 25C Collector- / Emitter Saturation 0-4 Voltage Vv, CE (sat) . volts 93 7 i 0-2 7 Vj ) 0-1 4 I | 0 OAmA mA mA yOOmA 1A WA Collector Current (Ic) Typical collector-emitter saturation voltages plotted against collector current 140 tt trty 100kK> C (nsecs) r nsecs. to 800 ts 600 50 400 200 0 10mA 100mA 1A Collector Current (Ic) Typical switching speeds SE44ZTX449 6503) 14 Veg = 2V / Base- 1-2 Tamb = 25C / Emitter Turn-on Voltage 1:0 7 Vee (ON) aT volts 08 eT! _ertTT| L barr 06 Coo Lemmon 04 O-1mA mA 10mA OMA 1A 10A Collector Current (Ic) Typical base-emitter turn-on voltages plotted against collector current 240 150 Voge = 2V LY) N 160 Hy N Static LA N Foward 99 A N Current Wr Transfer LT Ratio 80 | (hee) \ 40 a. 0-ImA mA 10mA 100mA 1A 10A Collector Current (1,) Typical static forward current transfer ratio plotted against collector current SE45ZTX449 TRANSIENT THERMAL IMPEDANCE CfW 1 20 100 80 100us ims 10ms 100ms 1s 10s 100s PULSE WIDTH Maximum transient thermal impedance curves SE46