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Transistors
1
Publication date: October 2008
SJC00224DED
This product complies with the RoHS Directive (EU 2002/95/EC).
2SD1478
Silicon NPN epitaxial planar type darlington
For low-frequency amplification
■ Features
Forward current transfer ratio h
FE is designed high, which is appro-
priate to the driver circuit of motors and printer hammer
A shunt resistor is omitted from the driver.
■ Absolute Maximum Ratings T
a
= 25°C
■ Electrical Characteristics T
a
= 25°C ± 3°C
Note) 1. Measuring methods are based on JAPANESE INDUSTRIAL STANDARD JIS C 7030 measuring methods for transistors.
2. *1: Pulse measurement
*2: Rank classification
Rank
Q
R
hFE
4 000 to 10 000 8 000 to 20 000
Parameter
Symbol
Rating
Unit
Collector-base voltage (Emitter open)
VCBO
30
V
Collector-emitter voltage (Base open)
VCEO
25
V
Emitter-base voltage (Collector open)
VEBO
5V
Collector current
IC
500
mA
Peak collector current
ICP
750
mA
Collector power dissipation
PC
200
mW
Junction temperature
Tj
150
°C
Storage temperature
Tstg
55 to +150
°C
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Collector-base voltage (Emitter open)
VCBO
IC
= 100 A, I
E
= 030
V
Collector-emitter voltage (Base open)
VCEO
IC = 1 mA, IB = 025
V
Emitter-base voltage (Collector open)
VEBO
IE = 100 A, IC = 05
V
Collector-base cutoff current (Emitter open)
ICBO
VCB
= 25 V, I
E
= 0
100
nA
Emitter-base cutoff current (Collector open)
IEBO
VEB = 4 V, IC = 0
100
nA
Forward current transfer ratio *
1, 2
hFE
VCE = 10 V, IC = 500 mA
4 000
20 000
Collector-emitter saturation voltage *
1
VCE(sat)
IC
= 500 mA, I
B
= 0.5 mA
2.5
V
Base-emitter saturation voltage *
1
VBE(sat)
IC = 500 mA, IB = 0.5 mA
3.0
V
Transition frequency
fT
VCB = 10 V, IE = 50 mA, f = 200 MHz
200
MHz
B
C
E
■ Package
Code
Mini3-G1
Pin Name
1: Base
2: Emitter
3: Collector
■ Marking Symbol: 2N
■ Internal Connection
Ma
int
en
an
ce
/
Dis
co
nti
nu
ed
Maintenance/Discontinued
includes
following
four
Product
lifecy
cle
stage.
planed
maintenance
type
maintenance
type
planed
discontinued
typed
discontinued
type
Please
visit
following
URL
about
latest
information.
http://panasonic.net/sc/en
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