MMUN2211LT1 Series
Preferred Devices
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-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.
http://onsemi.com
PIN 3
COLLECTOR
(OUTPUT)
R1
R2
PIN 1
BASE
PIN 2
(INPUT)
EMITTER
(GROUND)
• Simplifies Circuit Design
• Reduces Board Space and 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.
MARKING DIAGRAM
3
3
• 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 the13 inch/10,000 unit reel.
1
A8x
2
SOT–23
CASE 318
STYLE 6
1
2
MAXIMUM RATINGS (T = 25°C unless otherwise noted)
A
A8x = Device Code
x = (See Table)
Rating
Collector-Base Voltage
Collector-Emitter Voltage
Collector Current
Symbol
Value
50
Unit
Vdc
V
CBO
CEO
ORDERING INFORMATION
V
50
Vdc
I
C
100
mAdc
Device
Package
SOT–23
SOT–23
SOT–23
SOT–23
SOT–23
SOT–23
SOT–23
SOT–23
SOT–23
SOT–23
SOT–23
SOT–23
SOT–23
SOT–23
Shipping
Total Power Dissipation @ T = 25°C
(Note 1.) Derate above 25°C
P
*200
1.6
mW
mW/°C
A
D
MMUN2211LT1
MMUN2212LT1
MMUN2213LT1
MMUN2214LT1
MMUN2215LT1
MMUN2216LT1
MMUN2230LT1
MMUN2231LT1
MMUN2232LT1
MMUN2233LT1
MMUN2234LT1
MMUN2235LT1
MMUN2238LT1
MMUN2241LT1
3000/Tape & Reel
3000/Tape & Reel
3000/Tape & Reel
3000/Tape & Reel
3000/Tape & Reel
3000/Tape & Reel
3000/Tape & Reel
3000/Tape & Reel
3000/Tape & Reel
3000/Tape & Reel
3000/Tape & Reel
3000/Tape & Reel
3000/Tape & Reel
3000/Tape & Reel
DEVICE MARKING AND RESISTOR VALUES
Device
Marking
A8A
A8B
A8C
A8D
A8E
A8F
R1(K)
10
R2(K)
10
22
47
47
∞
MMUN2211LT1
MMUN2212LT1
MMUN2213LT1
MMUN2214LT1
MMUN2215LT1
MMUN2216LT1
MMUN2230LT1
MMUN2231LT1
MMUN2232LT1
MMUN2233LT1
MMUN2234LT1
MMUN2235LT1
MMUN2238LT1
MMUN2241LT1
22
47
10
10
4.7
1.0
2.2
4.7
4.7
22
∞
A8G
A8H
A8J
1.0
2.2
4.7
47
47
47
∞
A8K
A8L
A8M
A8R
A8U
2.2
2.2
100
∞
Preferred devices are recommended choices for future use
and best overall value.
1. Device mounted on a FR-4 glass epoxy printed circuit board using the
minimum recommended footprint.
Semiconductor Components Industries, LLC, 2001
1
Publication Order Number:
November, 2001 – Rev. 3
MMUN2211LT1/D