LESHAN RADIO COMPANY, LTD.
Bias Resistor Transistors
PNP Silicon Surface Mount Transistors with Monolithic Bias Resisto...
LESHAN RADIO COMPANY, LTD.
Bias Resistor
Transistors
PNP Silicon Surface Mount
Transistors with Monolithic Bias Resistor Network
LMUN21xxLT1G SERIES
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 SOT-23 package which is designed for low power surface mount applications.
Simplifies Circuit Design Reduces Board Space Reduces Component Count The SOT-23 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.
Available in 8 mm embossed tape and reel. Use the Device Number
to order the 7 inch/3000 unit reel. Replace “T1” with “T3” in the Device Number to order the 13 inch/10,000 unit reel.
We declare that the material of product compliance with RoHS requirements.
3
1 2
SOT-23
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
VCBO
Collector-Emitter Voltage
VCEO
Collector Current
IC
THERMAL CHARACTERISTICS
50 50 ...