BD433/435/437
NPN Epitaxial Silicon Transistor
Features
• Medium Power Linear and Switching Applications
• Complement to BD434, BD436 and BD438 respectively
TO-126
1
1. Emitter
2.Collector
3.Base
Ordering Information
Part Number
Marking
Package
Packing Method
BD433S
BD433
TO-126
BULK
BD435S
BD435
TO-126
BULK
BD435STU
BD435
TO-126
RAIL
BD437S
BD437
TO-126
BULK
Remarks
* The suffix "S" of FSID denotes TO126 package.
Absolute Maximum Ratings
Symbol
VCBO
VCES
VCEO
TA = 25°C unless otherwise noted
Value
Units
Collector-Base Voltage
: BD433
: BD435
: BD437
Parameter
22
32
45
V
V
V
Collector-Emitter Voltage
: BD433
: BD435
: BD437
22
32
45
V
V
V
Collector-Emitter Voltage
: BD433
: BD435
: BD437
22
32
45
V
V
V
VEBO
Emitter-Base Voltage
5
V
IC
Collector Current (DC)
4
A
ICP
*Collector Current (Pulse)
7
A
IB
Base Current
1
A
PC
Collector Dissipation (TC = 25°C)
36
W
TJ
Junction Temperature
150
°C
TSTG
Storage Temperature
- 65 to 150
°C
© 2011 Fairchild Semiconductor Corporation
BD433/435/437 Rev. B0
www.fairchildsemi.com
1
BD433/435/437 — NPN Epitaxial Silicon Transistor
July 2011
TA = 25°C unless otherwise noted
Symbol
Parameter
VCEO(sus)
Collector-Emitter Sustaining Voltage
: BD433
: BD435
: BD437
ICBO
Test Condition
IC = 100mA, IB = 0
Min.
Typ.
Max.
22
32
45
Units
V
V
V
Collector Cut-off Current
: BD433
: BD435
: BD437
VCB = 22V, IE = 0
VCB = 32V, IE = 0
VCB = 45V, IE = 0
100
100
100
μA
μA
μA
Collector Cut-off Current
: BD433
: BD435
: BD437
VCE = 22V, VBE = 0
VCE = 32V, VBE = 0
VCE = 45V, VBE = 0
100
100
100
μA
μA
μA
IEBO
Emitter Cut-off Current
VEB = 5V, IC = 0
1
mA
hFE
* DC Current Gain
: BD433/435
: BD437
: ALL DEVICE
: BD433/435
: BD437
0.5
0.5
0.6
V
V
V
1.1
1.1
1.2
V
V
V
ICEO
VCE(sat)
VBE(on)
fT
* Collector-Emitter Saturation Voltage
: BD433
: BD435
: BD437
* Base-Emitter ON Voltage
: BD433
: BD435
: BD437
Current Gain Bandwidth Product
VCE = 5V, IC = 10mA
VCE = 1V, IC = 500mA
VCE = 1V, IC = 2A
40
30
85
50
40
IC = 2A, IB = 0.2A
0.2
0.2
0.2
VCE = 1V, IC = 2A
VCE = 1V, IC = 250mA
130
130
140
3
MHz
* Pulse Test: PW≤300μs, duty Cycle≤1.5% Pulsed
© 2011 Fairchild Semiconductor Corporation
BD433/435/437 Rev. B0
www.fairchildsemi.com
2
BD433/435/437 — NPN Epitaxial Silicon Transistor
Electrical Characteristics
1
1000
100
10
1
0.01
0.1
1
10
IC = 10 IB
VCE(sat)[V], SATURATION VOLTAGE
hFE, DC CURRENT GAIN
VCE = 1V
0.1
0.01
0.1
100
1
IC[A], COLLECTOR CURRENT
IC[A], COLLECTOR CURRENT
Figure 1. DC current Gain
Figure 2. Collector-Emitter Saturation Voltage
5.0
IC[A], COLLECTOR CURRENT
CCBO(pF), COLLECTOR BASE CAPACITANCE
1000
VCE = 1V
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0.0
0.3
0.5
0.8
1.0
1.3
1.5
1.8
2.0
100
10
1
0.1
1
Figure 3. Base-Emitter On Voltage
10
100
1000
Figure 4. Collector-Base Capacitance
48
IC MAX. (Pulsed)
10μs
42
PC[W], POWER DISSIPATION
DC
100μs
10 1m
ms s
IC Max. (Continuous)
1
BD433
BD435
BD437
0.1
1
10
36
30
24
18
12
6
0
100
0
25
50
75
100
125
150
175
200
o
VCE[V], COLLECTOR-EMITTER VOLTAGE
TC[ C], CASE TEMPERATURE
Figure 5. Safe Operating Area
Figure 6. Power Derating
© 2011 Fairchild Semiconductor Corporation
BD433/435/437 Rev. B0
10
VCB[V], COLLECTOR BASE VOLTAGE
VBE[V], BASE-EMITTER VOLTAGE
IC[A], COLLECTOR CURRENT
10
www.fairchildsemi.com
3
BD433/435/437 — NPN Epitaxial Silicon Transistor
Typical Performance Characteristics
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Dimensions in Millimeters
© 2011 Fairchild Semiconductor Corporation
BD433/435/437 Rev. B0
www.fairchildsemi.com
4
BD433/435/437 — NPN Epitaxial Silicon Transistor
Physical Dimension
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Definition of Terms
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Advance Information
Product Status
Formative /
In Design
Preliminary
First Production
No Identification Needed
Full Production
Obsolete
Not In Production
Definition
Datasheet contains the design specifications for product development. Specifications may change
in any manner without notice.
Datasheet contains preliminary data; supplementary data will be published at a later date. Fairchild
Semiconductor reserves the right to make changes at any time without notice to improve design.
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changes at any time without notice to improve the design.
Datasheet contains specifications on a product that is discontinued by Fairchild Semiconductor.
The datasheet is for reference information only.
Rev. I54
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