LESHAN RADIO COMPANY, LTD.

UN2211LT1 Series

PIN 1

BASE

(INPUT)

PIN 3

COLLECTOR

(OUTPUT)

PIN 2

EMITTER

(GROUND)

R

1

R

2

1

3

2

SOT–23 (TO–236AB)

LMUN2211LT1

SERIES

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.

modified gull-winged leads absorb thermal stress during soldering

eliminating the possibility of damage to the die.

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.

Rating

Symbol

Value

Unit

Collector-Base Voltage

50

Vdc

Collector-Emitter Voltage

50

Vdc

Collector Current

100

mAdc

(Note 1.) Derate above 25

°C

1.5

mW

°C/W

DEVICE MARKING AND RESISTOR VALUES

Device

Marking

R1(K)

R2(K)

LMUN2211LT1

A8A

10

10

LMUN2212LT1

A8B

22

22

LMUN2213LT1

A8C

47

47

LMUN2214LT1

A8D

10

47

LMUN2215LT1

A8E

10

∞

LMUN2216LT1

A8F

4.7

∞

LMUN2230LT1

A8G

1.0

1.0

LMUN2231LT1

A8H

2.2

2.2

LMUN2232LT1

A8J

4.7

4.7

LMUN2233LT1

A8K

4.7

47

LMUN2234LT1

A8L

22

47

LMUN2235LT1

A8M

2.2

47

LMUN2238LT1

A8R

2.2

∞

LMUN2241LT1

A8U

100

∞

1. Device mounted on a FR-4 glass epoxy printed circuit board using the

minimum recommended footprint.

Device

Package

Shipping

ORDERING INFORMATION

LMUN2211LT1G

SOT–23

3000/Tape & Reel

LMUN2212LT1G

SOT–23

3000/Tape & Reel

LMUN2213LT1G

SOT–23

3000/Tape & Reel

LMUN2214LT1G

SOT–23

3000/Tape & Reel

LMUN2215LT1G

SOT–23

3000/Tape & Reel

LMUN2216LT1G

SOT–23

3000/Tape & Reel

LMUN2230LT1G

SOT–23

3000/Tape & Reel

LMUN2231LT1G

SOT–23

3000/Tape & Reel

LMUN2232LT1G

SOT–23

3000/Tape & Reel

LMUN2233LT1G

SOT–23

3000/Tape & Reel

LMUN2234LT1G

SOT–23

3000/Tape & Reel

LMUN2235LT1G

SOT–23

3000/Tape & Reel

LMUN2238LT1G

SOT–23

3000/Tape & Reel

LMUN2241LT1G

SOT–23

3000/Tape & Reel

LMUN2211S-1/11

The G−Suffix Denotes a Pb−Free

Lead Finish