Page 1
BD243/A/B/C
Medium Power Linear and Switching
Applications
• Complement to BD244, BD244A, BD244B and BD244C respectively
BD243/A/B/C
1
TO-220
1.Base 2.Collector 3.Emitter
NPN Epitaxial Silicon Transistor
Absolute Maximum Ratings
Symbol Parameter Value Units
V
CBO
V
CEO
VEBO
IC
ICP
IB
P
C
T
J
T
STG
Collector-Base Voltage
Collector-Emitter Voltage
Emitter-Base Voltage 5 V
Collector Current (DC) 6 A
*Collector Current (Pulse) 10 A
Base Current 2 A
Collector Dissipation (TC=25°C) 65 W
Junction Temperature 150 °C
Storage T emperature - 65 ~ 150 °C
Electrical Characteristics
Symbol Parameter Test Condition Min. Typ. Max. Units
(sus) * Collector-Emitter Sustaini ng Voltage
V
CEO
I
CEO
I
CES
I
EBO
h
FE
(sat) *Collector-Emitter Saturation Vol tage IC = 6A, IB = 1A 1.5 V
V
CE
(on) *Base-Emitter ON Voltage V
V
BE
* Pulse Test :PW=300µs, duty Cycle<20% Pulsed
Collector Cut-off Curre nt : BD243/24 3A
Collector Cut-off Current : BD243
Emitter Cut-off Current V
*DC Current Gain V
TC=25°C unless otherwise noted
: BD243
: BD243A
: BD243B
: BD243C
: BD243
: BD243A
: BD243B
: BD243C
TC=25°C unless otherwise noted
: BD243
: BD243A
: BD243B
: BD243C
: BD243B/243C
: BD243A
: BD243B
: BD243C
45
60
80
100
45
60
80
100
=30mA, IB=0
I
C
45
60
80
100
V
= 30V, IB = 0
CE
= 60V, IB = 0
V
CE
V
= 45V, V
CE
V
= 60V, V
CE
= 80V, V
V
CE
= 100V, V
V
CE
= 5V , IC = 0 1 mA
EB
= 4V , IC = 0.3A
CE
V
= 4V , IC = 3A
CE
= 4V , IC = 6A 2 V
CE
BE
BE
BE
BE
= 0
= 0
= 0
= 0
30
15
0.7
0.7
0.4
0.4
0.4
0.4
V
V
V
V
V
V
V
V
V
V
V
V
mA
mA
mA
mA
mA
mA
©2000 Fairchild Semiconductor International Rev. A, February 2000
Page 2
Typical Characteristics
BD243/A/B/C
1000
100
, DC CURRENT GAIN
FE
h
10
0.01 0.1 1 10
IC[A], COLLECTOR CURRENT
Figure 1. DC current Gain Figure 2. Base-Emitter Saturation Voltage
1
0.1
(sat)(V), SATURATION VOLTAGE
BE
V
0.01
0.1 1 10
IC[A], COLLECTOR CURRENT
IC = 10.1 I
VCE = 2V
B
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
(sat)(V), SATURATION VOLTAGE
0.7
BE
V
0.6
0.5
0.1 1 10
IC = 10.1 I
B
IC[A], COLLECTOR CURRENT
100
IC(max)
10
1
[A], COLLECTOR CURRENT
C
I
0.1
110100
1
m
10
s
m
s
DC
BD243
BD243A
BD243B
BD243C
10µs
100µs
VCE[V], COLLECTOR-EMITTER VOLTAGE
Figure 3. Collector-Emitter Saturation Voltage Figure 4. Safe Operating Area
80
70
60
50
40
30
20
[W], POWER DISSIPATION
C
P
10
0
0 25 50 75 100 125 150 175 200
T[oC], CASE TEMPERATURE
Figure 5. Power Derating
©2000 Fairchild Semiconductor International
Rev. A, February 2000
Page 3
Package Demensions
±0.10
(1.70)
1.30
±0.20
9.20
(1.46)
9.90
(8.70)
ø3.60
TO-220
±0.20
±0.10
(45°)
(3.70)(3.00)
±0.10
2.80
±0.20
15.90
18.95MAX.
4.50
1.30
±0.20
+0.10
–0.05
BD243/A/B/C
±0.20
13.08
(1.00)
1.27
2.54TYP
±0.20
[2.54
±0.10
]
10.00
±0.20
1.52
±0.10
0.80
2.54TYP
[2.54
±0.10
±0.20
±0.30
10.08
+0.10
0.50
–0.05
2.40
±0.20
]
Dimensions in Millimeters
©2000 Fairchild Semiconductor International Rev. A, February 2000
Page 4
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is
not intended to be an exhaustive list of all such trademarks.
ACEx™
Bottomless™
CoolFET™
CROSSVOLT™
2
E
CMOS™
FACT™
FACT Quiet Series™
®
FAST
FASTr™
GTO™
HiSeC™
ISOPLANAR™
MICROWIRE™
POP™
PowerTrench
®
QFET™
QS™
Quiet Series™
SuperSOT™-3
SuperSOT™-6
SuperSOT™-8
SyncFET™
TinyLogic™
UHC™
VCX™
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN;
NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR
INTERNATIONAL.
As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, or (c) whose failure to perform
when properly used in accordance with instructions for use
provided in the labeling, can be reasonably expected to
result in significant injury to the user.
2. A critical component is any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification Product Status Defini tion
Advance Information Formative or In
Design
Preliminary First Production This datasheet contains preliminary data, and
No Identification Needed Full Production This datasheet contains final specifications. Fairchild
Obsolete Not In Production This datasheet contains specifications on a product
©2000 Fairchild Semiconductor International Rev. E
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
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