CYStech Electronics Corp.
Spec. No. : C235A3
Issued Date : 2004.02.24
Revised Date : 2004.10.18
Page No. : 1/3
BF423A3/S
CYStek Product Specification
PNP Epitaxial Planar Transistor
BF423A3/S
Description
PNP high voltage transistors in a TO-92 plastic package.
Complementary to BF422A3/S.
Pb-free package is available
Features
Low feedback capacitance.
Applications
Class-B video output stages in color television and professional monitor equipment.
Symbol Outline
Absolute Maximum Ratings
(Ta=25
C)
Parameter Symbol
Conditions
Min
Max
Unit
Collector-Base Voltage
V
CBO
Open
emitter - -250 V
Collector-Emitter Voltage
V
CEO
Open
base -
-250
V
Emitter-Base Voltage
V
EBO
Open
collector - -5 V
Collector Current (DC)
I
C
-
-50
mA
Peak Collector Current
I
CM
-
-100
mA
Peak Base Current
I
BM
-
-50
mA
Power Dissipation
Pd
Tamb
25,
Note
- 830 mW
Junction Temperature
Tj
-
150
C
Storage Temperature
Tstg
-65
+150
C
Operating Ambient Temperature
Tamb
-65
+150
C
Note : Transistor mounted on a printed-circuit board.
BF423A3/S
TO-92
BBase
CCollector
EEmitter
E C B
CYStech Electronics Corp.
Spec. No. : C235A3
Issued Date : 2004.02.24
Revised Date : 2004.10.18
Page No. : 2/3
BF423A3/S
CYStek Product Specification
Characteristics
(Ta=25
C)
Symbol Min.
Typ.
Max.
Unit
Test
Conditions
BV
CBO
-250 -
-
V I
C
=-100A, I
E
=0
BV
CEO
-250 -
-
V I
C
=-1mA, I
B
=0
BV
EBO
-5 - - V
I
E
=-10A, I
C
=0
- - -10
nA
V
CB
=-200V, I
E
=0
I
CBO
- - -10
A
I
E
=0, V
CB
=-200V, Tj=150
I
EBO
- - -50
nA
V
EB
=-5V, I
C
=0
*V
CE(sat)
- - -0.6 V
I
C
=-30mA, I
B
=-5mA
*h
FE
50 - - -
V
CE
=-20V, I
C
=-25mA
Cre - - 1.6
pF
I
C
=i
C
=0, V
CE
=-30V, f=1MHz
f
T
60 - -
MHz
V
CE
=-10V, I
C
=-10mA, f=100MHz
*Pulse Test: Pulse Width
380
s, Duty Cycle
2%
Thermal Characteristics
Symbol Parameter Conditions
Value
Unit
R
thJA
Thermal resistance from junction to ambient
Note
150
K/W
Note : Transistor mounted on a printed-circuit board.
Ordering Information
Device Package Shipping
BF423A3
TO-92
2000 pcs / tape & box
BF423A3S TO-92
(Pb-free)
2000 pcs / tape & box
CYStech Electronics Corp.
Spec. No. : C235A3
Issued Date : 2004.02.24
Revised Date : 2004.10.18
Page No. : 3/3
BF423A3/S
CYStek Product Specification
TO-92 Dimension
*: Typical
Inches Millimeters
Inches Millimeters
DIM
Min. Max. Min. Max.
DIM
Min. Max. Min. Max.
A 0.1704
0.1902 4.33 4.83 G 0.0142
0.0220 0.36 0.56
B 0.1704
0.1902 4.33 4.83 H
-
*
0.1000 -
*
2.54
C 0.5000 - 12.70 -
I
-
*
0.0500 -
*
1.27
D 0.0142
0.0220 0.36 0.56
1
-
*
5
-
*
5
E -
*
0.0500 -
*
1.27
2
-
*
2
-
*
2
F 0.1323
0.1480 3.36 3.76
3
-
*
2
-
*
2
Notes:
1.Controlling dimension: millimeters.
2.Maximum lead thickness includes lead finish thickness, and minimum lead thickness is the minimum thickness of base material.
3.If there is any question with packing specification or packing method, please contact your local CYStek sales office.
Material:
Lead: 42 Alloy ; solder plating
Mold Compound: Epoxy resin family, flammability solid burning class: UL94V-0
Important Notice:
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written approval of CYStek.
CYStek reserves the right to make changes to its products without notice.
CYStek semiconductor products are not warranted to be suitable for use in Life-Support Applications, or systems.
CYStek assumes no liability for any consequence of customer product design, infringement of patents, or application assistance.
BF423
Marking:
3
1
A
D
B
C
I
1
E
F
2
3
G
H
2
Style: Pin 1.Emitter 2.Collector 3.Base
3-Lead TO-92 Plastic Package
CYStek Package Code: A3
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