Catalog
Features
■Products are pre-selected in DC current gain
Application
■General purpose
Description
These epitaxial planar transistors are mounted in the SOT-32 plastic package. They are designed for audio amplifiers and drivers utilizing complementary or quasi-complementary circuits. The NPN types are the BD135 and BD139, and the complementary PNP types are the BD136 and BD140.
Internal Schematic Diagram
Device Summary
Order codes
|
Marking
|
Package
|
Packaging
|
BD135
|
BD135
|
SOT-32
|
Tube
|
BD135-16
|
BD135-16
|
BD136
|
BD136
|
BD136-16
|
BD136-16
|
BD139
|
BD139
|
BD139-10
|
BD139-10
|
BD139-16
|
BD139-16
|
BD140
|
BD140
|
BD140-10
|
BD140-10
|
BD140-16
|
BD140-16
|
Absolute Maximum Ratings
Symbol
|
Parameter
|
Value
|
Unit
|
NPN
|
PNP
|
BD135
|
BD139
|
BD136
|
BD140
|
VCBO
|
Collector-base voltage (IE = 0)
|
45
|
80
|
-45
|
-80
|
V
|
VCEO
|
Collector-emitter voltage (IB = 0)
|
45
|
80
|
-45
|
-80
|
V
|
VEBO
|
Emitter-base voltage (IC = 0)
|
5
|
-5
|
V
|
IC
|
Collector current
|
1.5
|
-1.5
|
A
|
ICM
|
Collector peak current
|
3
|
-3
|
A
|
IB
|
Base current
|
0.5
|
-0.5
|
A
|
PTOT
|
Total dissipation at Tc ≤ 25 °C
|
12.5
|
W
|
PTOT
|
Total dissipation at Tamb ≤ 25 °C
|
1.25
|
W
|
Tstg
|
Storage temperature
|
-65 to 150
|
°C
|
Tj
|
Max. operating junction temperature
|
150
|
°C
|
Thermal Data
Symbol
|
Parameter
|
Max value
|
Unit
|
Rthj-case
|
Thermal resistance junction-case
|
10
|
°C/W
|
Rthj-amb
|
Thermal resistance junction-ambient
|
100
|
°C/W
|
Electrical Characteristics
(Tcase= 25 °C unless otherwise specified)
Symbol |
Parameter |
Polarity |
Test conditions |
Value |
Unit |
Min. |
Typ. |
Max. |
ICBO |
Collector cut-off current (IE=0) |
NPN |
VCB = 30 V |
|
|
0.1 |
µA |
VCB = 30 V, TC = 125 °C |
10 |
PNP |
VCB = -30 V |
|
|
-0.1 |
µA |
VCB = -30 V, TC = 125 °C |
-10 |
IEBO |
Emitter cut-off current (IC=0) |
NPN |
VEB = 5 V |
|
|
10 |
µA |
PNP |
VEB = -5 V |
|
|
-10 |
VCEO(sus)(1) |
Collector-emitter sustaining voltage (IB=0) |
NPN |
IC = 30 mA |
|
|
|
V |
BD135 |
45 |
|
|
BD139 |
80 |
|
|
PNP |
IC = -30 mA |
|
|
|
V |
BD136 |
45 |
|
|
BD140 |
80 |
|
|
VCE(sat) (1) |
Collector-emitter saturation voltage |
NPN |
IC = 0.5 A, IB = 0.05 A |
|
|
0.5 |
V |
PNP |
IC = -0.5 A, IB = -0.05 A |
|
|
-0.5 |
V |
VBE (1) |
Base-emitter voltage |
NPN |
IC = 0.5 A, VCE = 2 V |
|
|
1 |
V |
PNP |
IC = -0.5 A, VCE = -2 V |
|
|
-1 |
V |
hFE (1) |
DC current gain |
NPN |
IC = 5 mA, VCE = 2 V |
25 |
|
250 |
|
IC = 150 mA, VCE = 2 V |
40 |
|
|
IC = 0.5 A, VCE = 2 V |
25 |
|
|
PNP |
IC = -5 mA, VCE = -2 V |
25 |
|
250 |
|
IC = -150 mA, VCE = -2 V |
40 |
|
|
IC = -0.5 A, VCE = -2 V |
25 |
|
|
hFE (1) |
hFE groups |
NPN |
IC = 150 mA, VCE = 2 V |
|
|
|
|
BD139-10 |
63 |
|
160 |
|
BD135-16/BD139-16 |
100 |
|
250 |
|
PNP |
IC = -150 mA, VCE = -2 V |
|
|
|
|
BD140-10 |
63 |
|
160 |
|
BD136-16/BD140-16 |
100 |
|
250 |
|
1.Pulsed: pulse duration = 300 µs, duty cycle 1.5%
Electrical characteristics (curves)
Figure. Safe Operating Area
Figure. Derating
Package Mechanical Data
In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark.
SOT-32 (TO-126) MECHANICAL DATA |
DIM. |
mm. |
MIN. |
TYP |
MAX. |
A |
2.4 |
|
2.9 |
B |
0.64 |
|
0.88 |
B1 |
0.39 |
|
0.63 |
D |
10.5 |
|
11.05 |
E |
7.4 |
|
7.8 |
e |
2.04 |
2.29 |
2.54 |
e1 |
4.07 |
4.58 |
5.08 |
L |
15.3 |
|
16 |
P |
2.9 |
|
3.2 |
Q |
|
3.8 |
|
Q1 |
1 |
|
1.52 |
H2 |
|
2.15 |
|
I |
|
1.27 |
|
BD139 Datasheet
You can download the datasheet of BD139 from the link given below:
BD139 Datasheet
BD139 FAQ
What is BD139 transistor?
The BD139 is a NPN complementary low voltage NPN transistor in 3 pin SOT-32 package. This device is designed for audio amplifiers and drivers utilizing complementary or quasi-complementary circuits. Products are pre-selected in DC current gain. Collector to emitter voltage (Vce) is 80V. Collector current (Ic) is 1.5A.
Is the BD139 an NPN or PNP transistor?
These epitaxial planar transistors are mounted in the SOT-32 plastic package. They are designed for audio amplifiers and drivers utilizing complementary or quasi-complementary circuits. The NPN types are the BD135 and BD139, and the complementary PNP types are the BD136 and BD140.
What is BD139 used for?
BD139 is a Bipolar NPN transistor, mounted in the SOT-32 plastic package and is designed for audio amplifier and driver utilizing complementary circuits. due to its high collector current and low cost it is an ideal transistor to be used in educational electronic projects and also in commercial electronics.
Can I use BD139 instead of BD140?
When large currents or voltages need to be controlled, Darlington Transistors can be used. Though the best choice for power transistors is BD139 and BD140 but if they are not available then you may also go for BD135 and BD136 which are NPN and PNP transistors respectively but preference must be given to BD139/140 pair.
What is complementary power transistors?
Complementary power transistors are for general purpose power amplification and switching such as output or driver stages in applications such as switching regulators, converters and power amplifiers.