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Semiconductor Components Industries, LLC, 2001
January, 2001 – Rev. 3
1 Publication Order Number:
MUN5211DW1T1/D
MUN5211DW1T1 Series
Preferred Devices
Dual Bias Resistor
Transistors
NPN Silicon Surface Mount Transistors
with Monolithic Bias Resistor 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. These digital transistors 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 MUN5211DW1T1 series,
two 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
• 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
and Q
2
)
Rating
Symbol Value Unit
Collector-Base Voltage V
CBO
50 Vdc
Collector-Emitter Voltage V
CEO
50 Vdc
Collector Current I
C
100 mAdc
THERMAL CHARACTERISTICS
Characteristic
(One Junction Heated)
Symbol Max Unit
Total Device Dissipation
T
A
= 25°C
Derate above 25°C
P
D
187 (Note 1.)
256 (Note 2.)
1.5 (Note 1.)
2.0 (Note 2.)
mW
mW/°C
Thermal Resistance –
Junction-to-Ambient
R
θ
JA
670 (Note 1.)
490 (Note 2.)
°C/W
Characteristic
(Both Junctions Heated)
Symbol Max Unit
Total Device Dissipation
T
A
= 25°C
Derate above 25°C
P
D
250 (Note 1.)
385 (Note 2.)
2.0 (Note 1.)
3.0 (Note 2.)
mW
mW/°C
Thermal Resistance –
Junction-to-Ambient
R
θ
JA
493 (Note 1.)
325 (Note 2.)
°C/W
Thermal Resistance –
Junction-to-Lead
R
θ
JL
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
SOT–363
CASE 419B
STYLE 1
http://onsemi.com
7x = Device Marking
= (See Page 2)
MARKING DIAGRAM
Preferred devices are recommended choices for future use
and best overall value.
DEVICE MARKING INFORMATION
See specific marking information in the device marking table
on page 2 of this data sheet.
Q
1
R
1
R
2
R
2
R
1
Q
2
(1)(2)(3)
(4) (5) (6)
1
2
3
6
5
4
7x
Verzeichnis
