UTC 4128
HIGH FREQUENCY SWITCHING
TRANSISTORS FOR BALLASTERS
DESCRIPTION
NPN EPITAXIAL SILICON TRANSISTOR
UTC 4128 is designed for specially used for electronic
ballasters in 110VAC environment.
FEATURES
* Triple diffused technology.
* High switching speed
1
TO-126
1: BASE 2: COLLECTOR 3: EMITTER
*Pb-free plating product number: 4128L
ABSOLUTE MAXIMUM RATINGS
(Tc = 25℃)
PARAMETER
Collector-Base Voltage
Collector-Emitter Voltage
Collector-Emitter Voltage
Peak Collector Current
Peak Collector Consume Dissipation
Peak Junction Temperature
Storage Temperature
SYMBOL
V
CBO
V
CEO
V
EBO
I
C
P
C
T
J
T
STG
RATINGS
400
200
7
5
40
150
-40 ~ +150
UNIT
V
V
V
A
W
℃
℃
ELECTRICAL CHARACTERISTICS
(Ta = 25℃)
PARAMETER
Collector-Emitter Maintenance Voltage
Collector-Base Breakdown Voltage
Emitter-Base Breakdown Voltage
Collector-Base Cutoff Current
Collector-Emitter Cutoff Current
Emitter-Base Cutoff Current
DC Current Gain
Collector-Emitter Saturation Voltage
Base-Emitter Saturation Voltage
Fall Time
Storage Time
Feature Frequency
SYMBOL
V
CEO (SUS)
V
(BR) CBO
V
(BR) EBO
I
CBO
I
CEO
I
EBO
h
FE (1)
h
FE (2)
V
CE (sat)
V
BE (sat)
tf
ts
f
T
TEST CONDITIONS
I
C
=10mA, I
B
=0
I
C
=1mA, I
B
=0
I
E
=1mA, I
C
=0
V
CB
=400V, I
E
=0
V
CE
=200V, I
B
=0
V
EB
=7V, Ic=0
V
CE
=10V, Ic=0.5A
V
CE
=5V, Ic=2A
I
C
=1A, I
B
=0.2A
I
C
=4A, I
B
=1A
I
C
=2A, I
B
=0.5A
I
C
=2A, I
B1
= -I
B2
= 0.4A
I
C
=2A, I
B1
= -I
B2
= 0.4A
V
CE
=10V, Ic=0.5A
MIN
200
400
7
TYP
MAX
UNIT
V
V
V
µA
µA
µA
10
10
100
100
100
60
40
0.8
2
1.6
0.9
4
4
V
V
V
µs
µs
MHz
1
QW-R204-020,A
UTC
UNISONIC TECHNOLOGIES CO., LTD.
www.unisonic.com
UTC 4128
CHARACTERISTICS CURVES
Safe work area
4
2
NPN EPITAXIAL SILICON TRANSISTOR
hFE-I
C
6
V
CC
=5V
10
1 8
6
4
2
I
C
MAX
PULSED
PULSE OPERATION *
10µs
4
2
I
C
(A)
8
6
4
2
-1
8
6
4
2
-2
h
FE
10
0
I
C
MAX
CONT
100µs
1ms
10ms
10
2
8
6
4
2
T
J
=125℃
T
J
=25℃
10
DC OPERATION
* For single
nonrepetitive pulse
2
4
6 8
2
4 6 8
2
10
1
8
6
4
2
10
10
0
10
1
10
V
CE
(V)
2
4 6 8
10
0
10
-2
2
4
6 8
10
-1
2
4
6 8
10
I
C
(A)
0
2
4
6 8
V
CE
(sat) (V)-I
C
6
4
V
BE
(sat) (V)-I
C
h
FE
= 5
T
J
=125℃
h
FE
= 5
2
10
V
CE
(sat) (V)
0
1.0
V
BE
(sat) (V)
T
J
=25℃
8
6
4
2
0.9
0.8
0.7
T
J
=125℃
0.6
10
-1
8
6
4
2
T
J
=25℃
10
-2
10
-1
2
4
6
8
10
I
C
(A)
0
2
4
0.5
10
-1
10
I
C
(A)
0
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UTC
UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R204-020,A
www.unisonic.com
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