Central 2N4237 2N4238 2N4239 TM Semiconductor Corp. NPN SILICON TRANSISTOR DESCRIPTION: The CENTRAL SEMICONDUCTOR 2N4237, 2N4238, and 2N4239 are Silicon NPN Transistors, in a hermetically sealed metal case designed for power amplifier, power driver and switching power supply applications. JEDEC TO-39 CASE MAXIMUM RATINGS: (TC=25°C unless otherwise noted) SYMBOL Collector-Base Voltage VCBO Collector-Emitter Voltage VCEO Emitter-Base Voltage VEBO Collector Current IC Base Current IB Power Dissipation PD Operating and Storage Junction Temperature TJ,Tstg Thermal Resistance ΘJC 2N4237 50 40 6.0 3.0 0.5 6.0 ELECTRICAL CHARACTERISTICS (TC=25°C unless otherwise noted) SYMBOL TEST CONDITIONS ICBO VCB= Rated VCBO ICEV VCE=45V, VEB=1.5V (2N4237) ICEV VCE=75V, VEB=1.5V (2N4238) ICEV VCE=90V, VEB=1.5V (2N4239) ICEV VCE=30V, VEB=1.5V, TC=150°C (2N4237) ICEV VCE=50V, VEB=1.5V, TC=150°C (2N4238) ICEV VCE=70V, VEB=1.5V , TC=150°C (2N4239) ICEO VCE= Rated VCEO VEB=6.0V IEBO BVCEO IC= 100mA (2N4237) BVCEO IC= 100mA (2N4238) BVCEO IC= 100mA (2N4239) VCE(SAT) IC= 500mA, IB=50mA VCE(SAT) IC=1.0A, IB=0.1A VBE(SAT) IC=1.0A, IB=0.1A VBE(ON) VCE=1.0V, IC=250mA 2N4238 80 60 6.0 3.0 0.5 6.0 2N4239 100 80 6.0 3.0 0.5 6.0 UNITS V V V A A W -65 to +200 °C 29.2 °C/W MIN MAX 0.1 0.1 0.1 0.1 1.0 1.0 1.0 0.7 0.5 40 60 80 0.3 0.6 1.5 1.0 UNITS mA mA mA mA mA mA mA mA mA V V V V V V V R1 (22-February 2007) Central TM 2N4237 2N4238 2N4239 Semiconductor Corp. NPN SILICON TRANSISTOR ELECTRICAL CHARACTERISTICS (Continued) (TC=25°C unless otherwise noted) SYMBOL TEST CONDITIONS MIN hFE hFE hFE hFE hfe fT Cob VCE=1.0V, IC=50mA VCE=1.0V, IC=250mA VCE=1.0V, IC=500mA VCE=1.0V, IC=1.0A VCE=10V, IC=100mA, f=1.0kHz VCE=10V, IC=100mA, f=1.0kHz VCB=10V, IE=0, f=0.1MHz 30 30 30 15 30 2.0 MAX UNITS 250 100 MHz pF TO-39 CASE - MECHANICAL OUTLINE LEAD CODE: 1) EMITTER 2) BASE 3) COLLECTOR MARKING CODE: FULL PART NUMBER R1 (22-February 2007)