
SEMICONDUCTOR
KTD1824E
TECHNICAL DATA
FOR LOW-FREQUENCY AMPLIFICATION.
FEATURES 
ᴌHigh foward current transfer ratio h 
ᴌLow collector to emitter saturation voltage V 
ᴌHigh emitter to base voltage V 
ᴌLow noise voltage NV. 
ᴌESM type package, allowing downsizing of the equipment and
automatic insertion through the tape packing and the magazine 
packing.
MAXIMUM RATINGS (Ta=25ᴱ)
CHARACTERISTIC SYMBOL RATING UNIT
Collector-Base Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
DC
Collector Current 
Pulse
Collector Power Dissipation
Junction Temperature
Storage Temperature Range
EBO
.
FE
.
CE(sat)
.
V
CBO
V
CEO
V
EBO
I
C
I
CP
P
C
T
j
T
stg
50 V
40 V
15 V
50
mA
100
100 mW
150
-55ᴕ150
ᴱ
ᴱ
EPITAXIAL PLANAR NPN TRANSISTOR
E
G
A
C
2
H
1
1. EMITTER
2. BASE
3. COLLECTOR
B
D
3
J
DIM
A
B
C
D
E
G
H
J
MILLIMETERS
_ 
+
1.60  0.10 
_
+
0.85  0.10 
_
+
0.70  0.10
0.27+0.10/-0.05 
_
+
1.60  0.10 
_
+
1.00  0.10
0.50 
_
+
0.13  0.05
ESM
Marking
Type Name
ELECTRICAL CHARACTERISTICS (Ta=25ᴱ)
CHARACTERISTIC SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
I
Collector Cut-off Current
Collector-Base Breakdown Voltage
Collector-Emitter Breakdown Voltage
Emitter-Base Breakdown Voltage
DC Current Gain
Collector-Emitter Saturation Voltage
Transition Frequency 
CBO
I
CEO
V
(BR)CBO
V
(BR)CEO
V
(BR)EBO
h
(Note) VCE=10V, IC=2mA
FE 
V
CE(sat)
f
T
Note : hFEClassification   A:400~800,  B:600~1200,  C:1000~2000
VCB=20V, IE=0
VCE=20V, IB=0
IC=10ỌA, IE=0
IC=1mA, IB=0
IE=10ỌA, IC=0
IC=10mA, IB=1mA
VCB=10V, IE=-2mA, f=200MHz
h    Rank
L
FE
- - 100 nA
- - 1
50 V
40 V
15 V
400 1000 2000
- 0.05 0.2 V
- 120 - MHz
ỌA
2001. 10. 23 1/3
Revision No : 0

KTD1824E
I   - V
C
120
Ta=25 C
100
C
80
60
40
20
COLLECTOR CURRENT I   (mA)
0
0
246810
COLLECTOR-EMITTER VOLTAGE V    (V)
V      - I
CE(sat) C
1
I  /I  =10
C B
0.5
0.3
CE(sat)
0.1
75 C
=
a
0.05
0.03
VOLTAGE V       (V)
0.01
COLLECTOR-EMITTER SATURATION
0.1 0.3
T
C
Ta=25 
1 3 10 30 100
COLLECTOR CURRENT I   (mA)
CE
Ta=
100µA
90µA
80µA
70µA
60µA
50µA
40µA
30µA
20µA
I  =10µA
B
1200
V   =10V
CE
FE
900
600
300
DC CURRENT GAIN h
h   - I
FE
Ta
Ta
Ta=-25 C
C
=75 C
=25 C
0
0.1 0.3 1 3 10 30 100
-25
CE
100
80
C
60
C
40
COLLECTOR CURRENT I   (mA)
V   =10V
CE
I   - V
C
BE
Ta=75 C
C
25 
Ta=
C
-25 C
Ta=
20
COLLECTOR CURRENT I   (mA)
0
0
C
BASE-EMITTER VOLTAGE V    (V)
0.4 0.8 1.20.2 0.6 1.0
BE
C   - V
ob
f   - I
TE
250
V   =10V
CB
Ta=25 C
200
T
150
100
50
8
7
6
5
4
ob
C   (pF)
3
2
CB
I  =0
E
f=1MHz
Ta=25 C
1
0
TRANSITION FREQUENCY f   (MHz)
-0.1 -0.3
2001. 10. 23 2/3
-1 -3 -10 -30 -100
EMITTER CURRENT I   (mA)
E
Revision No : 0
0
COLLECTOR OUTPUT CAPACITANCE
10 3031
COLLECTOR-BASE VOLTAGE V    (V)
100
CB

125
100
125
C
P   (mW)
50
25
KTD1824E
Pc - Ta
COLLECTOR POWER DISSIPATION
0
0
25 50 100 125 150
AMBIENT TEMPERATURE Ta ( C)
75
2001. 10. 23 3/3
Revision No : 0