High Voltage Transistors
PNP Silicon
MAXIMUM RATINGS
Rating
Symbol
BF421
BF423
Unit
CollectorEmitter Voltage
V
CEO
300
250
Vdc
CollectorBase Voltage
V
CBO
300
250
Vdc
EmitterBase Voltage
V
EBO
5.0
Vdc
Collector Current -- Continuous
I
C
500
mAdc
Total Device Dissipation
@ T
A
= 25
C
Derate above 25
C
P
D
625
5.0
mW
mW/
C
Total Device Dissipation
@ T
C
= 25
C
Derate above 25
C
P
D
1.5
12
Watts
mW/
C
Operating and Storage Junction
Temperature Range
T
J
, T
stg
55 to +150
C
THERMAL CHARACTERISTICS
Characteristic
Symbol
Max
Unit
Thermal Resistance, Junction to Ambient
R
q
JA
200
C/W
Thermal Resistance, Junction to Case
R
q
JC
83.3
C/W
ELECTRICAL CHARACTERISTICS
(T
A
= 25
C unless otherwise noted)
Characteristic
Symbol
Min
Max
Unit
OFF CHARACTERISTICS
CollectorEmitter Breakdown Voltage
(1)
(I
C
= 1.0 mAdc, I
B
= 0)
BF421
BF423
V
(BR)CEO
300
250
--
--
Vdc
CollectorBase Breakdown Voltage
(I
C
= 100
m
Adc, I
E
= 0)
BF421
BF423
V
(BR)CBO
300
250
--
--
Vdc
EmitterBase Breakdown Voltage
(I
E
= 100
m
Adc, I
C
= 0)
BF421
BF423
V
(BR)EBO
5.0
5.0
--
--
Vdc
Collector Cutoff Current
(V
CB
= 200 Vdc, I
E
= 0)
BF421
BF423
I
CBO
--
--
0.01
--
m
Adc
Emitter Cutoff Current
(V
EB
= 5.0 Vdc, I
C
= 0)
BF421
BF423
I
EBO
--
--
100
--
nAdc
1. Pulse Test: Pulse Width
v
300
m
s; Duty Cycle
v
2.0%.
ON Semiconductort
Semiconductor Components Industries, LLC, 2001
March, 2001 Rev. 2
1
Publication Order Number:
BF421/D
BF421
BF423
CASE 2911, STYLE 14
TO92 (TO226AA)
1
2
3
COLLECTOR
2
3
BASE
1
EMITTER
BF421 BF423
http://onsemi.com
4
PACKAGE DIMENSIONS
CASE 02911
(TO226AA)
ISSUE AJ
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. CONTOUR OF PACKAGE BEYOND DIMENSION R
IS UNCONTROLLED.
4. LEAD DIMENSION IS UNCONTROLLED IN P AND
BEYOND DIMENSION K MINIMUM.
R
A
P
J
L
B
K
G
H
SECTION XX
C
V
D
N
N
X X
SEATING
PLANE
DIM
MIN
MAX
MIN
MAX
MILLIMETERS
INCHES
A
0.175
0.205
4.45
5.20
B
0.170
0.210
4.32
5.33
C
0.125
0.165
3.18
4.19
D
0.016
0.021
0.407
0.533
G
0.045
0.055
1.15
1.39
H
0.095
0.105
2.42
2.66
J
0.015
0.020
0.39
0.50
K
0.500
---
12.70
---
L
0.250
---
6.35
---
N
0.080
0.105
2.04
2.66
P
---
0.100
---
2.54
R
0.115
---
2.93
---
V
0.135
---
3.43
---
1
STYLE 14:
PIN 1. EMITTER
2. COLLECTOR
3. BASE
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without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular
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including without limitation special, consequential or incidental damages. "Typical" parameters which may be provided in SCILLC data sheets and/or
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BF421/D
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