BD433/BD435/BD437
NPN Silicon
Power Transistors
Features
• Intended for use in medium power near and switching applications
• With TO-126 package
• The complementary PNP type is BD434, BD436, BD438
Maximum Ratings
Symbol Parameter Rating Unit
VCEO Collector-Emitter Voltage BD433
BD435
BD437
22
32
45
V
VCBO Collector-Base Voltage BD433
BD435
BD437
22
32
45
V
VEBO Emitter-Base Voltage BD433
BD435
BD437 5.0 V
IC Collector Current 4.0 A
PC Collector power dissipation 1.25 W
TJ Junction Temperature -55 to +150 к
TSTG Storage Temperature -55 to +150 к
Electrical Characteristics @ 25OC Unless Otherwise Specified
Symbol Parameter Min Max Units
OFF CHARACTERISTICS
V(BR)CEO Collector-Emitter Breakdown Voltage
(IC=100mAdc, IB=0) BD433
BD435
BD437
22
32
45
---
---
---
Vdc
V(BR)CBO Collector-Base Breakdown Voltage
(IC=100Adc, IE=0) BD433
BD435
BD437
22
32
45
---
---
--- Vdc
V(BR)EBO Emitter-Base Breakdown Voltage
(IE=100Adc, IC=0) 5 --- Vdc
ICBO Collector-Base Cutoff Current
(VCB=22Vdc,IE=0) BD433
(VCB=32Vdc,IE=0) BD435
(VCB=45Vdc,IE=0) BD437
--- 1.0 uAdc
ICEO Collector-Base Cutoff Current
(VCE=22Vdc,IE=0) BD433
(VCE=32Vdc,IE=0) BD435
(VCE=45Vdc,IE=0) BD437
--- 10 uAdc
IEBO Emitter-Base Cutoff Current
(VEB=5.0Vdc, IC=0) --- 1.0 uAdc
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 
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  
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    
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    
    
    
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    
    
  
 
    
   
!    
E
A
D
F
G
H
J J
C
B
L
M
P
Q
N
R
K
PIN 1. EMITTER
PIN 2. COLLECTOR
12 3
PIN 3. BASE
omponents
20736 Marilla Street Chatsworth

 !"#
$%  !"#
Revision: 3 2007/05/06
xCase Material: Molded Plastic. UL Flammability
Classification Rating 94V-0
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ON CHARACTERISTICS
hFE-1 DC Current Gain
(IC=500mAdc, VCE=1.0Vdc) 85 --- ---
hFE-2 DC Current Gain
(IC=10mAdc, VCE=5.0Vdc) BD433/BD435
BD437 40
30 ---
--- ---
hFE-3 DC Current Gain
(IC=2Adc, VCE=1.0Vdc) BD433/BD435
BD437 50
40 ---
--- ----
VCE(sat) Collector-Emitter Saturation Voltage
(IC=2.0Adc, IB=0.2Adc) BD433/BD435
BD437 0.5
0.6 ---
--- Vdc
VBE Base-Emitter Voltage
(VCE=1.0Vdc,IC=2.0Adc) BD433/BD435
BD437 1.1
1.2 ---
--- Vdc
fT Transition Frequency
(IC=250mAdc, VCE=1.0Vdc) 3.0 --- MHz
Revision: 3 2007/05/06
BD433, BD435, BD437
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Revision: 3 2007/05/06
TM
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