LESHAN RADIO COMPANY, LTD.

Q1–1/7

5°C unless otherwise noted)

Rating

Symbol

Value

Unit

Collector-Base Voltage

50

Vdc

Collector-Emitter Voltage

50

Vdc

Collector Current

100

mAdc

200

mW

Derate above 2

5°C

1.6

mW

/°C

THERMAL CHARACTERISTICS

Rating

Symbol

Value

Unit

Thermal Resistance — Junction-to-Ambient (surface mounted)

625

°C/W

Operating and Storage Temperature Range

–65 to +150

°C

Maximum Temperature for Soldering Purposes

260

°C

Time in Solder Bath

10

Sec

DEVICE MARKING AND RESISTOR VALUES

Device

Marking

R1 (K)

R2 (K)

MMUN2111LT1

A6A

10

10

MMUN2112LT1

A6B

22

22

MMUN2113LT1

A6C

47

47

MMUN2114LT1

A6D

10

47

A6E

10

1. Device mounted on a FR-4 glass epoxy printed circuit board using the minimum recommended footprint.

2. New devices. Updated curves to follow in subsequent data sheets.

MMUN2111RLT1

MMUN2112RLT1

MMUN2113RLT1

MMUN2114RLT1

MMUN2115RLT1

MMUN2116RLT1

MMUN2130RLT1

MMUN2131RLT1

MMUN2132RLT1

MMUN2133RLT1

MMUN2134RLT1

1

3

2

CASE

318–08, STYLE 6

SOT– 23 (TO–236AB)

Bias Resistor Transistor

PNP Silicon Surface Mount Transistor 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 transis-

tor 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

R1

R2

PIN3

Collector

(output)

PIN1

base

(Input)

PIN2

Emitter

(Ground)

PNP SILICON

BIAS RESISTOR

TRANSISTOR