
Application
High voltage power amplifier
Outline
TO-220AB
2SD1527
Silicon NPN Triple Diffused
1. Base
2. Collector
1
2
3
(Flange)
3. Emitter
Absolute Maximum Ratings (Ta = 25°C)
Item Symbol Rating Unit
Collector to base voltage V
Collector to emitter voltage V
Emitter to base voltage V
Collector current I
Collector power dissipation P
Junction temperature Tj 150 °C
Storage temperature Tstg –55 to +150 °C
Note: 1. Value at TC = 25°C.
C
PC*
CBO
CEO
EBO
C
1
1000 V
1000 V
5V
0.5 A
1.8 W
25 W

2SD1527
Electrical Characteristics (Ta = 25°C)
Item Symbol Min Typ Max Unit Test conditions
Collector to emitter breakdown
V
(BR)CEO
voltage
Emitter to base breakdown
V
(BR)EBO
voltage
Collector cutoff current I
DC current transfer ratio h
Base to emitter voltage V
Collector to emitter saturation
CBO
h
V
FE1
FE2
BE
CE (sat)
voltage
Gain bandwidth product f
T
Collector output capacitance Cob — 5 — pF VCB = 100 V, IE = 0, f = 1 MHz
1000 — — V IC = 1 mA, RBE = ∞
5——VI
= 1 mA, IC = 0
E
——10µAVCB = 800 V, IE = 0
10 — — VCE = 5 V, IC = 10 mA
10 — — VCE = 5 V, IC = 100 mA
— — 1.2 V VCE = 5 V, IC = 100 mA
——5VI
= 300 mA, IB = 60 mA
C
— 5 — MHz VCE = 20 V, IC = 50 mA
Maximum Collector Dissipation Curve
30
20
10
Collector power dissipation Pc (W)
0 50 100 150
Case temperature T
(°C)
C
Area of Safe Operation
1.0
(50 V, 0.5 A)
(A)
C
0.1
DC Operation
Collector current I
0.01
30 100 300 1,000 3,000
Collector to emitter voltage VCE (V)
P
C
= 25 W
(600 V, 0.042 A)
(1,000 V, 0.015 A)
TC = 25°C
2

Base to Emitter Saturation Voltage
vs. Collector Current
2
(V)
(sat)
BE
IC/IB = 10
Ta = 25°C
Pulse test
1
0
Base to emitter saturation voltage V
1 2 5 10 20 50 100 200 500
Collector current IC (mA)
DC Current Transfer Ratio
vs. Collector Current
100
2SD1527
TC = 25°C
FE
VCE = 10 V
30
VCE = 5 V
10
3
DC current transfer ratio h
1 2 5 10 20 50 100 200 500
Collector current I
(mA)
C
3

2SD1527
Gain Bandwidth Product
vs. Collector Current
50
VCE = 20 V
Pulse test
20
(MHz)
T
10
5
2
1.0
Gain bandwidth product f
0.5
1 3 10 30 100
Collector current I
(mA)
C
Collector to Emitter Saturation Voltage
vs. Collector Current
(V)
5
(sat)
CE
2
1.0
lC/lB = 10
Ta = 25°C
Pulse test
0.5
0.2
0.1
0.05
Collector to emitter saturation voltage V
12 510
20 50 100 200 500
Collector current I
(mA)
C
4

Collector Output Capacitance
vs. Collector to Base Voltage
100
(pF)
50
ob
20
10
5
2
Collector output capacitance C
1
2 5 10 20 50 100 200
Collector to base voltage V
f = 1 MHz
= 0
I
E
(V)
CB
2SD1527
5

11.5 MAX
Unit: mm
2.79 ± 0.218.5 ± 0.57.8 ± 0.5
1.27
2.54 ± 0.5
10.16 ± 0.2
9.5
8.0
φ 3.6
-0.08
1.5 MAX
0.76 ± 0.1
2.54 ± 0.5
+0.2
6.4
–0.1
+0.1
4.44 ± 0.2
1.26 ± 0.15
2.7 MAX
14.0 ± 0.5 15.0 ± 0.3
0.5 ± 0.1
Hitachi Code
JEDEC
EIAJ
Weight
(reference value)
TO-220AB
Conforms
Conforms
1.8 g

Cautions
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traffic, safety equipment or medical equipment for life support.
4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly
for maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used
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failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other
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