LESHAN RADIO COMPANY, LTD.
LDTA114EM3T5G_S-1/11
Bias Resistor Transistors
PNP Silicon Surface Mount Transistors
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-723 package
which is designed for low power surface mount applications.
LDTA114EM3T5G
MAXIMUM RATINGS
(T
A
= 25
C unless otherwise noted)
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
Symbol
Max
Unit
Total Device Dissipation
T
A
= 25
C
Derate above 25
C
P
D
260 (Note 1)
600 (Note 2)
2.0 (Note 1)
4.8 (Note 2)
mW
Thermal Resistance
Junction-to-Ambient
R
JA
480 (Note 1)
205 (Note 2)
C/W
Junction and Storage
Temperature Range
T
J
, T
stg
55 to +150
C
1. FR4 @ Minimum Pad
2. FR4 @ 1.0 x 1.0 inch Pad
PIN 3
COLLECTOR
(OUTPUT)
PIN 2
EMITTER
(GROUND)
PIN 1
BASE
(INPUT)
R
1
R
2
xx
= Specific Device Code
M
= Date Code
MARKING
DIAGRAM
3
2
1
XX M
mW/
C
Simplifies Circuit Design
Reduces Component Count
The SOT-723 Package can be Soldered using Wave or Reflow.
Available in 4 mm, 8000 Unit Tape & Reel
These are Pb-Free Devices.
Reduces Board Space
Version 1.0
Series
SOT-723
1
2
3
LESHAN RADIO COMPANY, LTD.
LDTA114EM3T5G_S-2/11
LDTA114EM3T5G_Series
ORDERING INFORMATION, DEVICE MARKING AND RESISTOR VALUES
Device
Marking
R1 (K)
R2 (K)
Package
Shipping
LDTA114EM3T5G
LDTA124EM3T5G
LDTA144EM3T5G
LDTA114YM3T5G
LDTA114TM3T5G
LDTA143TM3T5G
LDTA123EM3T5G
LDTA143EM3T5G
LDTA143ZM3T5G
LDTA124XM3T5G
LDTA123JM3T5G
LDTA115EM3T5G
LDTA144WM3T5G
6A
6B
6C
6D
6E
6F
6H
6J
6K
6L
6M
6N
6P
10
22
47
10
10
4.7
2.2
4.7
4.7
22
2.2
100
47
10
22
47
47
2.2
4.7
47
47
47
100
22
SOT-723
(Pb-Free)
8000/Tape & Reel
Version 1.0
LESHAN RADIO COMPANY, LTD.
LDTA114EM3T5G_S-3/11
LDTA114EM3T5G_Series
ELECTRICAL CHARACTERISTICS
(T
A
= 25
C unless otherwise noted)
Characteristic
Symbol
Min
Typ
Max
Unit
OFF CHARACTERISTICS
Collector-Base Cutoff Current (V
CB
= 50 V, I
E
= 0)
I
CBO
-
-
100
nAdc
Collector-Emitter Cutoff Current (V
CE
= 50 V, I
B
= 0)
I
CEO
-
-
500
nAdc
Emitter-Base Cutoff Current
LDTA114EM3T5G
(V
EB
= 6.0 V, I
C
= 0)
LDTA124EM3T5G
LDTA144EM3T5G
LDTA114YM3T5G
LDTA114TM3T5G
LDTA143TM3T5G
LDTA123EM3T5G
LDTA143EM3T5G
LDTA143ZM3T5G
LDTA124XM3T5G
LDTA123JM3T5G
LDTA115EM3T5G
LDTA144WM3T5G
I
EBO
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.5
0.2
0.1
0.2
0.9
1.9
2.3
1.5
0.18
0.13
0.2
0.05
0.13
mAdc
Collector-Base Breakdown Voltage (I
C
= 10
m
A, I
E
= 0)
V
(BR)CBO
50
-
-
Vdc
Collector-Emitter Breakdown Voltage (Note 3.)
(I
C
= 2.0 mA, I
B
= 0)
V
(BR)CEO
50
-
-
Vdc
ON CHARACTERISTICS
(Note 3.)
DC Current Gain
LDTA114EM3T5G
(V
CE
= 10 V, I
C
= 5.0 mA)
LDTA124EM3T5G
LDTA144EM3T5G
LDTA114YM3T5G
LDTA114TM3T5G
LDTA143TM3T5G
LDTA123EM3T5G
LDTA143EM3T5G
LDTA143ZM3T5G
LDTA124XM3T5G
LDTA123JM3T5G
LDTA115EM3T5G
LDTA144WM3T5G
h
FE
35
60
80
80
160
160
8.0
15
80
80
80
80
80
60
100
140
140
250
250
15
27
140
130
140
150
140
-
-
-
-
-
-
-
-
-
-
-
-
-
Collector-Emitter Saturation Voltage (I
C
= 10 mA, I
E
= 0.3 mA)
(I
C
= 10 mA, I
B
= 5 mA) LDTA123EM3T5G
(I
C
= 10 mA, I
B
= 1 mA) LDTA114TM3T5G/LDTA143TM3T5G/
LDTA143ZM3T5G/LDTA124XM3T5G/LDTA143EM3T5G
V
CE(sat)
-
-
0.25
Vdc
Output Voltage (on)
(V
CC
= 5.0 V, V
B
= 2.5 V, R
L
= 1.0 k
W
)
LDTA114EM3T5G
LDTA124EM3T5G
LDTA114YM3T5G
LDTA114TM3T5G
LDTA143TM3T5G
LDTA123EM3T5G
LDTA143EM3T5G
LDTA143ZM3T5G
LDTA124XM3T5G
LDTA123JM3T5G
(V
CC
= 5.0 V, V
B
= 3.5 V, R
L
= 1.0 k
W
)
LDTA144EM3T5G
(V
CC
= 5.0 V, V
B
= 5.5 V, R
L
= 1.0 k
W
)
LDTA115EM3T5G
(V
CC
= 5.0 V, V
B
= 4.0 V, R
L
= 1.0 k
W
)
LDTA144WM3T5G
V
OL
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
Vdc
Output Voltage (off) (V
CC
= 5.0 V, V
B
= 0.5 V, R
L
= 1.0 k
W
)
(V
CC
= 5.0 V, V
B
= 0.25 V, R
L
= 1.0 k
W
)
LDTA114TM3T5G
LDTA143TM3T5G
LDTA123EM3T5G
LDTA143EM3T5G
V
OH
4.9
-
-
Vdc
3. Pulse Test: Pulse Width < 300
m
s, Duty Cycle < 2.0%
Version 1.0
LESHAN RADIO COMPANY, LTD.
LDTA114EM3T5G_S-4/11
LDTA114EM3T5G_Series
ELECTRICAL CHARACTERISTICS
(T
A
= 25
C unless otherwise noted) (Continued)
Characteristic
Symbol
Min
Typ
Max
Unit
Input Resistor
LDTA114EM3T5G
LDTA124EM3T5G
LDTA144EM3T5G
LDTA114YM3T5G
LDTA114TM3T5G
LDTA143TM3T5G
LDTA123EM3T5G
LDTA143EM3T5G
LDTA143ZM3T5G
LDTA124XM3T5G
LDTA123JM3T5G
LDTA115EM3T5G
LDTA144WM3T5G
R1
7.0
15.4
32.9
7.0
7.0
3.3
1.5
3.3
3.3
15.4
1.54
70
32.9
10
22
47
10
10
4.7
2.2
4.7
4.7
22
2.2
100
47
13
28.6
61.1
13
13
6.1
2.9
6.1
6.1
28.6
2.86
130
61.1
k
W
Resistor Ratio LDTA114EM3T5G/LDTA124EM3T5G/LDTA144EM3T5G
/
LDTA115EM3T5G
LDTA114YM3T5G
LDTA114TM3T5G/LDTA143TM3T5G
LDTA123EM3T5G/LDTA143EM3T5G
LDTA143ZM3T5G
LDTA124XM3T5G
LDTA123JM3T5G
LDTA144WM3T5G
R
1
/R
2
0.8
0.17
-
0.8
0.055
0.38
0.038
1.7
1.0
0.21
-
1.0
0.1
0.47
0.047
2.1
1.2
0.25
-
1.2
0.185
0.56
0.056
2.6
Figure 1. Derating Curve
250
200
150
100
50
0
-50
0
50
100
150
T
A
, AMBIENT TEMPERATURE (C)
P D
, POWER DISSIP
A
TION (MILLIW
A
TTS)
R
q
JA
= 480
C/W
300
Version 1.0
LESHAN RADIO COMPANY, LTD.
LDTA114EM3T5G_S-5/11
LDTA114EM3T5G_Series
TYPICAL ELECTRICAL CHARACTERISTICS - LDTA114EM3T5G
V in
, INPUT
VOL
T
AGE (VOL
TS)
I C
, COLLECT
OR CURRENT
(mA)
h FE
, DC CURRENT
GAIN (NORMALIZED)
Figure 2. V
CE(sat)
versus I
C
100
10
1
0.1
0.01
0.001
0
V
in
, INPUT VOLTAGE (VOLTS)
T
A
= -25C
25C
1
2
3
4
5
6
7
8
9
10
Figure 3. DC Current Gain
Figure 4. Output Capacitance
Figure 5. Output Current versus Input Voltage
Figure 6. Input Voltage versus Output Current
0.01
20
I
C
, COLLECTOR CURRENT (mA)
V CE(sat)
, MAXIMUM COLLECT
OR VOL
T
AGE (VOL
TS)
0.1
1
0
40
50
1000
1
10
100
I
C
, COLLECTOR CURRENT (mA)
T
A
= 75C
-25C
100
10
0
I
C
, COLLECTOR CURRENT (mA)
0.1
1
10
100
10
20
30
40
50
T
A
= -25C
25C
75C
75C
I
C
/I
B
= 10
50
0
10
20
30
40
4
3
1
2
V
R
, REVERSE BIAS VOLTAGE (VOLTS)
C ob
, CAP
ACIT
ANCE (pF)
0
T
A
= -25C
25C
75C
25C
V
CE
= 10 V
f = 1 MHz
l
E
= 0 V
T
A
= 25C
V
O
= 5 V
V
O
= 0.2 V
Version 1.0
LESHAN RADIO COMPANY, LTD.
LDTA114EM3T5G_S-6/11
LDTA114EM3T5G_Series
TYPICAL ELECTRICAL CHARACTERISTICS - LDTA124EM3T5G
V in
, INPUT
VOL
T
AGE (VOL
TS)
I C
, COLLECT
OR CURRENT
(mA)
h FE
, DC CURRENT
GAIN (NORMALIZED)
Figure 7. V
CE(sat)
versus I
C
Figure 8. DC Current Gain
1000
10
I
C
, COLLECTOR CURRENT (mA)
100
10
1
100
Figure 9. Output Capacitance
I
C
, COLLECTOR CURRENT (mA)
0
10
20
30
V
O
= 0.2 V
T
A
= -25C
75C
100
10
1
0.1
40
50
Figure 10. Output Current versus Input Voltage
100
10
1
0.1
0.01
0.001 0 1
2
3
4
V
in
, INPUT VOLTAGE (VOLTS)
5
6
7
8
9
10
Figure 11. Input Voltage versus Output Current
0.01
V CE(sat)
, MAXIMUM COLLECT
OR VOL
T
AGE (VOL
TS)
0.1
1
10
40
I
C
, COLLECTOR CURRENT (mA)
0
20
50
75C
25C
T
A
= -25C
50
0
10
20
30
40
4
3
2
1
0
V
R
, REVERSE BIAS VOLTAGE (VOLTS)
C ob
, CAP
ACIT
ANCE (pF)
25C
I
C
/I
B
= 10
25C
-25C
V
CE
= 10 V
T
A
= 75C
f = 1 MHz
l
E
= 0 V
T
A
= 25C
75C
25C
T
A
= -25C
V
O
= 5 V
Version 1.0
LESHAN RADIO COMPANY, LTD.
LDTA114EM3T5G_S-7/11
LDTA114EM3T5G_Series
TYPICAL ELECTRICAL CHARACTERISTICS - LDTA144EM3T5G
V in
, INPUT
VOL
T
AGE (VOL
TS)
I C
, COLLECT
OR CURRENT
(mA)
h FE
, DC CURRENT
GAIN (NORMALIZED)
Figure 12. V
CE(sat)
versus I
C
I
C
, COLLECTOR CURRENT (mA)
1
0.1
0.01
0
10
20
30
40
75C
25C
V CE(sat)
, MAXIMUM COLLECT
OR VOL
T
AGE (VOL
TS)
Figure 13. DC Current Gain
1000
100
10
1
10
100
I
C
, COLLECTOR CURRENT (mA)
-25C
Figure 14. Output Capacitance
Figure 15. Output Current versus Input Voltage
100
10
1
0.1
0.01
0.001
0
10
25C
V
in
, INPUT VOLTAGE (VOLTS)
-25C
50
0
10
20
30
40
1
0.8
0.6
0.4
0.2
0
V
R
, REVERSE BIAS VOLTAGE (VOLTS)
C ob
, CAP
ACIT
ANCE (pF)
1
2
3
4
5
6
7
8
9
Figure 16. Input Voltage versus Output Current
100
10
1
0.1
0
10
20
30
40
I
C
, COLLECTOR CURRENT (mA)
T
A
= -25C
25C
75C
50
I
C
/I
B
= 10
T
A
= -25C
25C
T
A
= 75C
f = 1 MHz
l
E
= 0 V
T
A
= 25C
V
O
= 5 V
T
A
= 75C
V
O
= 0.2 V
Version 1.0
LESHAN RADIO COMPANY, LTD.
LDTA114EM3T5G_S-8/11
LDTA114EM3T5G_Series
TYPICAL ELECTRICAL CHARACTERISTICS - LDTA114YM3T5G
10
1
0.1
0
10
20
30
40
50
100
10
1
0
2
4
6
8
10
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
0
2
4
6
8 10 15 20 25 30 35 40 45 50
V
R
, REVERSE BIAS VOLTAGE (VOLTS)
V in
, INPUT
VOL
T
AGE (VOL
TS)
I C
, COLLECT
OR CURRENT
(mA)
h FE
, DC CURRENT
GAIN (NORMALIZED)
Figure 17. V
CE(sat)
versus I
C
I
C
, COLLECTOR CURRENT (mA)
0
20
40
60
80
V CE(sat)
, MAXIMUM COLLECT
OR VOL
T
AGE (VOL
TS)
Figure 18. DC Current Gain
1
10
100
I
C
, COLLECTOR CURRENT (mA)
Figure 19. Output Capacitance
Figure 20. Output Current versus Input Voltage
V
in
, INPUT VOLTAGE (VOLTS)
C ob
, CAP
ACIT
ANCE (pF)
Figure 21. Input Voltage versus Output Current
I
C
, COLLECTOR CURRENT (mA)
1
0.1
0.01
0.001
-25C
25C
T
A
= 75C
V
CE
= 10 V
180
160
140
120
100
80
60
40
20
0
2
4 6
8
15 20 40 50 60 70 80 90
f = 1 MHz
l
E
= 0 V
T
A
= 25C
LOAD
+12 V
Figure 22. Inexpensive, Unregulated Current Source
Typical Application
for PNP BRTs
25C
I
C
/I
B
= 10
T
A
= -25C
T
A
= 75C
25C
-25C
V
O
= 5 V
V
O
= 0.2 V
25C
T
A
= -25C
75C
75C
Version 1.0
LESHAN RADIO COMPANY, LTD.
LDTA114EM3T5G_S-9/11
LDTA114EM3T5G_Series
TYPICAL ELECTRICAL CHARACTERISTICS -- LDTA115EM3T5G
75
C
25
C
-25
C
Figure 23. Maximum Collector Voltage versus
Collector Current
Figure 24. DC Current Gain
Figure 25. Output Capacitance
Figure 26. Output Current versus Input Voltage
V
in
, INPUT VOLTAGE (VOLTS)
V
R
, REVERSE BIAS VOLTAGE (VOLTS)
Figure 27. Input Voltage versus Output Current
I
C
, COLLECTOR CURRENT (mA)
I
C
, COLLECTOR CURRENT (mA)
1
0.1
7
6
5
4
3
2
1
0
I
C
, COLLECTOR CURRENT (mA)
100
10
1
100
10
1
0.01
1000
V
CE(sat)
, MAXIMUM COLLECT
OR
VOL
T
AGE (VOL
TS)
h
FE
, DC CURRENT GAIN (NORMALIZED)
1.2
0.6
60
50
40
30
20
10
0
0
C
ob
, CAP
ACIT
ANCE (pF)
0.2
0.4
0.8
1.0
100
6
5
4
3
2
1
0
0.1
1
10
I
C
, COLLECT
OR CURRENT (mA)
10
9
8
7
100
12
10
8
6
4
2
0
1
10
18
16
14
20
V
in
, INPUT VOL
T
AGE (VOL
TS)
I
C
/I
B
= 10
75
C
25
C
T
A
= -25
C
V
CE
= 10 V
75
C
25
C
T
A
= -25
C
V
O
= 5 V
V
O
= 0.2 V
75
C
25
C
T
A
= -25
C
f = 1 MHz
I
E
= 0 V
T
A
= 25
C
Version 1.0
LESHAN RADIO COMPANY, LTD.
LDTA114EM3T5G_S-10/11
LDTA114EM3T5G_Series
TYPICAL ELECTRICAL CHARACTERISTICS -- LDTA144WM3T5G
Figure 28. Maximum Collector Voltage versus
Collector Current
Figure 29. DC Current Gain
Figure 30. Output Capacitance
Figure 31. Output Current versus Input Voltage
V
in
, INPUT VOLTAGE (VOLTS)
V
R
, REVERSE BIAS VOLTAGE (VOLTS)
Figure 32. Input Voltage versus Output Current
I
C
, COLLECTOR CURRENT (mA)
I
C
, COLLECTOR CURRENT (mA)
1
0.1
35
30
25
20
15
10
5
0
I
C
, COLLECTOR CURRENT (mA)
100
10
1
100
10
0.01
1000
V
CE(sat)
, MAXIMUM COLLECT
OR
VOL
T
AGE (VOL
TS)
h
FE
, DC CURRENT GAIN (NORMALIZED)
1.4
0.6
60
50
40
30
20
10
0
0
C
ob
, CAP
ACIT
ANCE (pF)
0.2
0.4
0.8
1.0
100
6
5
4
3
2
1
0
0.001
1
10
I
C
, COLLECT
OR CURRENT (mA)
11
9
8
7
100
15
10
5
0
1
10
20
25
V
in
, INPUT VOL
T
AGE (VOL
TS)
50
45
40
0.1
0.01
10
1.2
f = 1 MHz
I
E
= 0 V
T
A
= 25
C
75
C
25
C
T
A
= -25
C
V
O
= 5 V
75
C
25
C
T
A
= -25
C
V
O
= 0.2 V
75
C
25
C
T
A
= -25
C
I
C
/I
B
= 10
V
CE
= 10 V
75
C
25
C
T
A
= -25
C
Version 1.0
LDTA114EM3T5G_S-11/11
LDTA114EM3T5G_Series
PACKAGE DIMENSIONS
D
b1
E
b
e
A
L
C
H
-Y-
-X-
X
0.08 (0.0032)
Y
2X
E
1
2
3
1.0
0.039
mm
inches
0.40
0.0157
0.40
0.0157
0.40
0.0157
0.40
0.0157
0.40
0.0157
PIN 1. BASE
2. EMITTER
3. COLLECTOR
DIM
MIN
NOM
MAX
MILLIMETERS
A
0.45
0.50
0.55
b
0.15
0.20
0.27
b1
0.25
0.3
0.35
C
0.07
0.12
0.17
D
1.15
1.20
1.25
E
0.75
0.80
0.85
e
0.40 BSC
H
1.15
1.20
1.25
L
0.15
0.20
0.25
0.018
0.020
0.022
0.0059 0.0079 0.0106
0.010
0.012
0.014
0.0028 0.0047 0.0067
0.045
0.047
0.049
0.03
0.032
0.034
0.016 BSC
0.045
0.047
0.049
0.0059 0.0079 0.0098
MIN
NOM
MAX
INCHES
E
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETERS.
3. MAXIMUM LEAD THICKNESS INCLUDES LEAD
FINISH. MINIMUM LEAD THICKNESS IS THE MINIMUM
THICKNESS OF BASE MATERIAL.
4. DIMENSIONS D AND E DO NOT INCLUDE MOLD
FLASH, PROTRUSIONS OR GATE BURRS.
SOT-723
SOLDERING FOOTPRINT
Version 1.0
LESHAN RADIO COMPANY, LTD.
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