Transys
Electronics
L I M I T E D
PNP SILICON PLANAR EPITAXIAL HIGH VOLTAGE
VIDEO TRANSISTORS
BF421
BF423
TO-92
Plastic Package
High Voltage Video Amplifier
ABSOLUTE MAXIMUM RATINGS(Ta=25ºC unless specified otherwise)
DESCRIPTION
SYMBOL
Collector Emitter Voltage
Collector Base Voltage
Emitter Base Voltage
Collector Current Continuous
Power Dissipation@ Ta=25ºC
Derate Above 25ºC
Power Dissipation@ Tc=25ºC
Derate Above 25ºC
Operating And Storage Junction
Temperature Range
THERMAL RESISTANCE
Junction to ambient
Junction to case
V
CEO
V
CBO
V
EBO
I
C
P
D
P
D
T
j
, T
stg
423
250
250
5
500
800
6.4
2.75
22
-55 to +150
421
300
300
UNITS
V
V
V
mA
mW
mW/ºC
W
mW/ºC
ºC
R
th(j-a)
R
th(j-c)
156
45
ºC/W
ºC/W
ELECTRICAL CHARACTERISTICS (Ta=25ºC Unless Otherwise Specified)
DESCRIPTION
SYMBOL TEST CONDITION
423
I
C
=1.0mA,I
B
=0
V
CEO
>250
Collector Emitter Voltage*
V
CBO
I
C
=100µA.I
E
=0
Collector Base Voltage
>250
V
EBO
I
E
=100µA, I
C
=0
EmitterBase Voltage
>5
V
CB
=200V,I
E
=0
I
CBO
<10
Collector-Cut off Current
Emitter-Cut off Current
DC Current Gain
Collector Emitter Saturation Voltage
Base Emitter Saturation Voltage
I
EBO
h
FE
V
CE(sat)
V
BE(sat)
V
EB
=5.0V, I
C
=0
I
C
=25mA,V
CE
=20V
I
C
=20mA,I
B
=2mA
I
C
=20mA,I
B
=2mA
<100
>50
<0.5
<2
421
>300
>300
>5
<10
<100
>50
<0.5
<2
UNITS
V
V
V
nA
nA
V
V
PNP SILICON PLANAR EPITAXIAL HIGH VOLTAGE
VIDEO TRANSISTORS
BF421
BF423
TO-92
Plastic Package
ELECTRICAL CHARACTERISTICS (Ta=25ºC Unless Specified Otherwise)
DESCRIPTION
SYMBOL TEST CONDITION
DYNAMIC CHARACTERISTICS
I
C
=10mA, V
CE
=10V
f
T
Current Gain-Bandwidth Product
f=50MHz
C
re
V
CB
=30V, I
E
=0
Feedback Capacitance
f=1MHz
*Pulse Condition: = Width < 300us, Duty Cycle < 2.0%.
423
>60
<2.8
421
>60
<2.8
UNITS
MHz
pF
BF421
BF423
TO-92
Plastic Package
TO-92 Plastic Package
TO-92 Transistors on Tape and Ammo Pack
Dimension With 'L'
B
Uncontrolled
Ammo Pack Style
MECHANICAL DATA
T
P
h
A
A1
(p)
Adhesive Tape on Top Side
D
FEE
Carrier
Strip
183
mm
h
LABEL
FLAT SIDE
A
H1
H0
L
W2
Wo
W1
W
L
Solderability Ensured
t1
t
F1
F
P2
Po
F2
Do
331
mm
42
mm
Beyond 'L'
K
1
2
3
D
G
A A
Flat Side of Transistor and
Adhesive Tape Visible
2000 pcs./Ammo Pack
All dimensions in mm unless specified otherwise
D
3
E
2
1
ITEM
BODY WIDTH
BODY HEIGHT
BODY THICKNESS
PITCH OF COMPONENT
FEED HOLE PITCH
FEED HOLE CENTRE TO
COMPONENT CENTRE
DISTANCE BETWEEN OUTER
LEADS
COMPONENT ALIGNMENT
TAPE WIDTH
HOLD-DOWN TAPE WIDTH
HOLE POSITION
HOLD-DOWN TAPE POSITION
LEAD WIRE CLINCH HEIGHT
COMPONENT HEIGHT
LENGTH OF SNIPPED LEADS
FEED HOLE DIAMETER
TOTAL TAPE THICKNESS
LEAD - TO - LEAD DISTANCEF1,
CLINCH HEIGHT
PULL - OUT FORCE
SYMBOL
A1
A
T
P
Po
P2
F
h
W
Wo
W1
W2
Ho
H1
L
Do
t
F2
H2
(P)
SEC AA
DIM
MIN.
4.32
4.45
3.18
0.41
MAX.
5.33
5.20
4.19
0.55
F
F
3 2 1
A
B
C
D
E
F
G
H
K
L
PIN CONFIGURATION
1. BASE
2. COLLECTOR
3. EMITTER
0.35
0.50
5 DEG
1.14
1.40
1.14
1.53
12.70
1.982
—
2.082
REMARKS
MIN. NOM. MAX. TOL .
4.0
4.8
5.2
4.8
4.2
3.9
12.7
±1
12.7
±0.3 CUMULATIVE PITCH
ERROR 1.0 mm/20
PITCH
6.35
±0.4 TO BE MEASURED AT
BOTTOM OF CLINCH
+0.6
5.08
-0.2
0
1
AT TOP OF BODY
18
±0.5
6
±0.2
9
+0.7
-0.5
0.5
±0.2
16
±0.5
23.25
11.0
4
±0.2
1.2
t1 0.3 - 0.6
2.54
+0.4
-0.1
3
6N
SPECIFICATION
H
C
All diminsions in mm.
NOTES
1. MAXIMUM ALIGNMENT DEVIATION BETWEEN LEADS NOT TO BE GREATER THAN 0.2 mm.
2. MAXIMUM NON-CUMULATIVE VARIATION BETWEEN TAPE FEED HOLES SHALL NOT EXCEED 1 mm IN 20
PITCHES.
3. HOLDDOWN TAPE NOT TO EXCEED BEYOND THE EDGE(S) OF CARRIER TAPE AND THERE SHALL BE NO
EXPOSURE OF ADHESIVE.
4. NO MORE THAN 3 CONSECUTIVE MISSING COMPONENTS ARE PERMITTED.
5. A TAPE TRAILER, HAVING AT LEAST THREE FEED HOLES ARE REQUIRED AFTER THE LAST COMPONENT.
6. SPLICES SHALL NOT INTERFERE WITH THE SPROCKET FEED HOLES.
Packing Detail
PACKAGE
TO-92 Bulk
TO-92 T&A
STANDARD PACK
Details
Net Weight/Qty
1K/polybag
200 gm/1K pcs
2K/ammo box
645 gm/2K pcs
INNER CARTON BOX
Size
Qty
3" x 7.5" x 7.5"
5K
12.5" x 8" x 1.8"
2K
OUTER CARTON BOX
Size
Qty
Gr Wt
17" x 15" x 13.5"
80K
23 kgs
17" x 15" x 13.5"
32K
12.5 kgs
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