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 SOT-23
package which is designed for low power surface mount applications.
MMUN2111LT1 Series
MMUN2111LT1
SERIES
3
1
2
CASE 318, STYLE 6
SOT–23 (TO–236AB)
•
•
•
•
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.
MAXIMUM RATINGS
(T
A
= 25°C unless otherwise noted)
Rating
Collector-Base Voltage
Collector-Emitter Voltage
Collector Current
Symbol
V
CBO
V
CEO
I
C
Value
50
50
100
Unit
Vdc
Vdc
mAdc
PIN 1
BASE
(INPUT)
R
1
PIN 3
COLLECTOR
(OUTPUT)
R
2
PIN 2
EMITTER
(GROUND)
MARKINGDIAGRAM
A6x M
A6x = Device Marking
x
M
= A – L(See Page 2)
= Date Code
DEVICE MARKING
INFORMATION
See specific marking information in
the device marking table on page 2 of this
THERMAL CHARACTERISTICS
Characteristic
Total Device Dissipation
T
A
= 25°C
Derate above 25°C
Thermal Resistance –
Junction-to-Ambient
Thermal Resistance –
Junction-to-Lead
Junction and Storage
Temperature Range
1. FR–4 @ Minimum Pad
2. FR–4 @ 1.0 x 1.0 inch Pad
Symbol
P
D
Max
246 (Note 1.)
400 (Note 2.)
1.5 (Note 1.)
2.0 (Note 2.)
508 (Note 1.)
311 (Note 2.)
174 (Note 1.)
208 (Note 2.)
–55 to +150
Unit
mW
°C/W
°C/W
°C/W
°C
data sheet.
R
θJA
R
θJL
T
J
, T
stg
MMUN2111S-1/11
LRC [ LESHAN RADIO COMPANY ]
