BF421A3 Cystech Electonics Corp, BF421A3 Datasheet - Page 2

• Manufacturer Part Number: BF421A3
• Description: PNP Epitaxial Planar Transistor
• Manufacturer: Cystech Electonics Corp

Characteristics
Thermal Characteristics
Note : Transistor mounted on a printed-circuit board.
BF421A3
Symbol
Symbol
R
*V
BV
BV
BV
thJA
I
*h
I
Cre
CBO
EBO
CE(sat)
f
T
CBO
CEO
EBO
FE
Thermal resistance from junction to ambient
Min.
-300
-300
50
60
-5
-
-
-
-
-
(Ta=25 C)
Typ.
CYStech Electronics Corp.
-
-
-
-
-
-
-
-
-
-
Parameter
Max.
-0.6
-10
-10
-50
1.6
-
-
-
-
-
MHz
Unit
µA
nA
nA
pF
V
V
V
V
-
I
I
I
V
I
V
I
V
I
V
*Pulse Test: Pulse Width 380
C
C
E
E
C
C
CB
EB
CE
CE
=-10µA, I
=0, V
=-100µA, I
=-1mA, I
=-30mA, I
=i
Conditions
=-200V, I
=-5V, I
=-20V, I
=-10V, I
C
=0, V
Note
CB
=-200V, Tj=150 ℃
CE
C
B
C
=0
C
C
=0
B
Test Conditions
=0
=-30V, f=1MHz
E
=-25mA
=-10mA, f=100MHz
E
=-5mA
=0
=0
CYStek Product Specification
www.DataSheet4U.com
Spec. No. : C235A3-A
Issued Date :
Revised Date : 2004.08.0
Page No. : 2/3
Value
150
µ
s, Duty Cycle 2%
2004.03.02
Unit
K/W
5