Order this document
by MMUN2111LT1/D
SEMICONDUCTOR TECHNICAL DATA
PNP Silicon Surface Mount Transistor with
Monolithic Bias Resistor Network
Motorola Preferred Devices
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.
PNP SILICON
BIAS RESISTOR
TRANSISTOR
•
•
•
•
Simplifies Circuit Design
Reduces Board Space
PIN 3
COLLECTOR
(OUTPUT)
Reduces Component Count
3
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.
R1
R2
1
PIN 1
BASE
2
(INPUT)
•
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.
CASE 318-08, STYLE 6
SOT-23 (TO-236AB)
PIN 2
EMITTER
(GROUND)
MAXIMUM RATINGS (T = 25°C unless otherwise noted)
A
Rating
Collector-Base Voltage
Symbol
Value
50
Unit
Vdc
V
CBO
CEO
Collector-Emitter Voltage
Collector Current
V
50
Vdc
I
C
100
mAdc
(1)
Total Power Dissipation @ T = 25°C
Derate above 25°C
P
D
*200
1.6
mW
mW/°C
A
THERMAL CHARACTERISTICS
Rating
Symbol
Value
625
Unit
°C/W
°C
Thermal Resistance — Junction-to-Ambient (surface mounted)
Operating and Storage Temperature Range
R
θJA
T , T
–65 to +150
J
stg
Maximum Temperature for Soldering Purposes,
Time in Solder Bath
260
10
°C
Sec
T
L
DEVICE MARKING AND RESISTOR VALUES
Device
Marking
R1 (K)
R2 (K)
MMUN2111LT1
MMUN2112LT1
MMUN2113LT1
MMUN2114LT1
MMUN2115LT1
A6A
A6B
A6C
A6D
A6E
10
22
47
10
10
10
22
47
47
∞
(2)
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.
Thermal Clad is a trademark of the Bergquist Company
Preferred devices are Motorola recommended choices for future use and best overall value.
(Replaces MMUN2111T1/D)
Motorola Small–Signal Transistors, FETs and Diodes Device Data
Motorola, Inc. 1996
1