Preferred Devices
NPN 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 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
SC–70/SOT–323 package which is designed for low power surface
mount applications.
http://onsemi.com
NPN SILICON
BIAS RESISTOR
TRANSISTORS
• Simplifies Circuit Design
• Reduces Board Space
PIN3
COLLECTOR
(OUTPUT)
• Reduces Component Count
R1
• The SC–70/SOT–323 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.
PIN1
R2
BASE
(INPUT)
PIN2
EMITTER
(GROUND)
• 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.
3
MAXIMUM RATINGS (T = 25°C unless otherwise noted)
A
Rating
Collector-Base Voltage
Collector-Emitter Voltage
Collector Current
Symbol
Value
50
Unit
Vdc
1
2
V
CBO
V
CEO
50
Vdc
CASE 419
SC–70/SOT–323
STYLE 3
I
C
100
mAdc
Total Power Dissipation
P
D
(1.)
@ T = 25°C
150
1.2
mW
mW/°C
A
Derate above 25°C
DEVICE MARKING AND RESISTOR VALUES
Preferred devices are recommended choices for future use
and best overall value.
Device
Marking
R1 (K)
R2 (K)
Shipping
3000/Tape & Reel
MUN5211T1
MUN5212T1
MUN5213T1
MUN5214T1
MUN5215T1
MUN5216T1
MUN5230T1
MUN5231T1
MUN5232T1
MUN5233T1
MUN5234T1
MUN5235T1
8A
8B
8C
8D
8E
8F
8G
8H
8J
10
22
47
10
10
4.7
1.0
2.2
4.7
4.7
22
10
22
47
47
∞
(2.)
(2.)
(2.)
(2.)
(2.)
(2.)
(2.)
(2.)
∞
1.0
2.2
4.7
47
47
47
8K
8L
8M
2.2
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.
Semiconductor Components Industries, LLC, 2000
1
Publication Order Number:
May, 2000 – Rev. 3
MUN5211T1/D