LESHAN RADIO COMPANY, LTD.
Dual Bias Resistor Transistors
NPN and PNP Silicon Surface Mount
Transistors with Monolithic Bias
Resistor Network
MUN5311DW1T1
Series
6
5
4
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. These digital tran-
sistors are designed to replace a single device and its external resistor bias network. The BRT
eliminates these individual components by integrating them into a single device. In the
MUN5311DW1T1 series, two complementary BRT devices are housed in the SOT–363 package
which is ideal for low power surface mount applications where board space is at a premium.
• Simplifies Circuit Design
1
2
3
SOT 363
CASE 419B STYLE1
• Reduces Board Space
• Reduces Component Count
• Available in 8 mm, 7 inch/3000 Unit Tape and Reel
MAXIMUM RATINGS (T A = 25°C unless otherwise noted, common for Q 1
6
5
4
and Q 2 , – minus sign for Q 1 (PNP) omitted)
R1
R2
Rating
Symbol Value
Unit
Vdc
Q2
Collector-Base Voltage
Collector-Emitter Voltage
Collector Current
V CBO
V CEO
I C
50
50
R2
Q1
Vdc
R1
100
mAdc
1
2
3
THERMAL CHARACTERISTICS
Characteristic
MARKING DIAGRAM
(One Junction Heated)
Total Device Dissipation
T A = 25°C
Symbol
Max
Unit
6
5
4
P D
187 (Note 1.)
256 (Note 2.)
1.5 (Note 1.)
2.0 (Note 2.)
670 (Note 1.)
490 (Note 2.)
mW
XX
Derate above 25°C
mW/°C
°C/W
1
2
3
Thermal Resistance –
Junction-to-Ambient
R θJA
xx = Device Marking
= (See Page 2)
Characteristic
(Both Junctions Heated)
Symbol
Max
Unit
DEVICE MARKING
INFORMATION
See specific marking information in
the device marking table on page 2 of
this data sheet.
Total Device Dissipation
T A = 25°C
P D
250 (Note 1.)
385 (Note 2.)
2.0 (Note 1.)
3.0 (Note 2.)
mW
Derate above 25°C
mW/°C
°C/W
Thermal Resistance –
Junction-to-Ambient
Thermal Resistance –
Junction-to-Lead
R θJA
R θJL
493 (Note 1.)
325 (Note 2.)
188 (Note 1.)
208 (Note 2.)
°C/W
Junction and Storage
Temperature
T J , T stg
–55 to +150
°C
1. FR–4 @ Minimum Pad
2. FR–4 @ 1.0 x 1.0 inch Pad
MUN5311dw–1/13