Ordering number:EN3328
NPN Triple Diffused Planar Silicon Transistor
2SC4457
500V/4A Switching Regulator Applications
...
Ordering number:EN3328
NPN Triple Diffused Planar Silicon
Transistor
2SC4457
500V/4A Switching
Regulator Applications
Features
· High breakdown voltage, high reliability. · Fast switching speed. · Wide ASO. · Adoption of MBIT process. · Micaless package facilitating mounting.
Package Dimensions
unit:mm 2039D
[2SC4457]
16.0 3.4
5.6 3.1
5.0 8.0 22.0
2.0
21.0 4.0
2.8 2.0
1.0
123
Specifications
Absolute Maximum Ratings at Ta = 25˚C
Parameter Collector-to-Base Voltage Collector-to-Emitter Voltage Emitter-to-Base Voltage Collector Current Collector Current (Pulse) Base Current Collector Dissipation
Symbol
VCBO VCEO VEBO
IC ICP IB PC
Junction Temperature Storage Temperature
Tj Tstg
Conditions
PW≤300µs, duty cycle≤10% Tc=25˚C
5.45
5.45
3.5 20.4
2.0
0.6
1 : Base 2 : Collector 3 : Emitter SANYO : TO-3PML
Ratings 800 500 7 4 8 1.5 3 40 150
–55 to +150
Unit V V V A A A W W ˚C ˚C
Electrical Characteristics at Ta = 25˚C
Parameter
Symbol
Conditions
Collector Cutoff Current Emitter Cutoff Current
DC Current Gain
ICBO IEBO hFE1 hFE2
VCB=500V, IE=0 VEB=5V, IC=0 VCE=5V, IC=0.3A VCE=5V, IC=1.5A
* : For the hFE1 of the 2SC4457, specify two ranks or more in principle.
15 L 30 20 M 40 30 N 50
Ratings min typ
15* 8
max 10 10 50*
Unit
µA µA
Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control systems, or o...
