LDTA143EET1

LESHAN RADIO COMPANY, LTD. Bias Resistor Transistors PNP Silicon Surface Mount Transistors with Monolithic Bias Resistor Network This new series of digital transistors is designed to replace a single device and its external resistor bias network. The BRT (Bias Resistor Transistor) contains a single transistor with a monolithic bias network consisting of two resistors; a series base resistor and a base-emitter resistor. The BRT eliminates these individual components by integrating them into a single device. The use of a BRT can reduce both system cost and board space. The device is housed in the SC-89 package which is designed for low power surface mount applications. Simplifies Circuit Design Reduces Board Space Reduces Component Count The SC-89 package can be soldered using wave or reflow. The modified gull-winged leads absorb thermal stress during soldering eliminating the possibility of damage to the die. Pb-Free Package is Available. LDTA143EET1 3 1 2 SC-89 PIN 1 BASE (INPUT) R1 R2 PIN 3 COLLECTOR (OUTPUT) PIN 2 EMITTER (GROUND) MAXIMUM RATINGS (TA = 25°C unless otherwise noted) Rating Symbol Value Collector-Base Voltage Collector-Emitter Voltage Collector Current VCBO VCEO IC 50 50 100 Unit Vdc Vdc mAdc THERMAL CHARACTERISTICS Characteristic Total Device Dissipation, FR–4 Board (Note 1.) @ TA = 25°C Derate above 25°C Thermal Resistance, Junction to Ambient (Note 1.) Total Device Dissipation, FR–4 Board (Note 2.) @ TA = 25°C Derate above 25°C Therm...