LESHAN RADIO COMPANY, LTD.
Bias Resistor Transistor
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鈥揺mitter 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鈥?9 package which is designed for low
power surface mount applications.
鈥?Simplifies Circuit Design
鈥?Reduces Board Space
鈥?Reduces Component Count
鈥?The SC鈥?9 package can be soldered using wave or reflow.
The modified gull鈥搘inged leads absorb thermal stress during
soldering eliminating the possibility of damage to the die.
鈥?Available in 8 mm embossed tape and reel
Use the Device Number to order the 7 inch/3000 unit reel.
MUN2211RT1
MUN2212RT1
MUN2213RT1
MUN2214RT1
MUN2215RT1
MUN2216RT1
MUN2230RT1
MUN2231RT1
MUN2232RT1
MUN2233RT1
MUN2234RT1
NPN SILICON
BIAS RESISTOR
TRANSISTOR
3
PIN2
base
(Input)
R1
R2
PIN3
Collector
(Output)
2
1
PIN2
Emitter
(Ground)
CASE 318鈥?3 , STYLE 1
( SC 鈥?59 )
MAXIMUM RATINGS
(T
A
= 25擄C unless otherwise noted)
Rating
Collector-Base Voltage
Collector-Emitter Voltage
Collector Current
Total Power Dissipation @ T
A
= 25擄C
(1)
Derate above 25擄C
Symbol
V
CBO
V
CEO
I
C
P
D
Value
50
50
100
200
1.6
Value
625
鈥?5 to +150
260
10
Unit
Vdc
Vdc
mAdc
mW
mW/擄C
Unit
擄C/W
擄C
擄C
Sec
THERMAL CHARACTERISTICS
Rating
Thermal Resistance 鈥?Junction-to-Ambient (surface mounted)
Operating and Storage Temperature Range
Maximum Temperature for Soldering Purposes
Time in Solder Bath
Symbol
R
胃
JA
T
J
, T
stg
T
L
DEVICE MARKING AND RESISTOR VALUES
Device
Marking
R1 (K)
R2 (K)
MUN2211RT1
8A
10
10
MUN2212RT1
8B
22
22
MUN2213RT1
8C
47
47
MUN2214RT1
8D
10
47
(2)
8E
10
MUN2215RT1
MUN2216RT1
(2)
8F
4.7
8G
1.0
1.0
MUN2230RT1
(2)
(2)
MUN2231RT1
8H
2.2
2.2
MUN2232RT1
(2)
8J
4.7
4.7
MUN2233RT1
(2)
8K
4.7
47
MUN2234RT1
(2)
8L
22
47
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.
8 8
P2鈥?/8
1
2
3
4
5
6
7
8
