
2008. 9. 23 1/6
SEMICONDUCTOR
TECHNICAL DATA
KRC851U~KRC856U
EPITAXIAL PLANAR NPN TRANSISTOR
Revision No : 3
SWITCHING APPLICATION.
INTERFACE CIRCUIT AND DRIVER CIRCUIT APPLICATION.
FEATURES
With Built-in Bias Resistors.
Simplify Circuit Design.
Reduce a Quantity of Parts and Manufacturing Process.
High Packing Density.
EQUIVALENT CIRCUIT
MAXIMUM RATING (Ta=25 )
BIAS RESISTOR VALUES
TYPE NO.
R1(k ) R2(k )
KRC851U 4.7 4.7
KRC852U 10 10
KRC853U 22 22
KRC854U 47 47
KRC855U 2.2 47
KRC856U 4.7 47
CHARACTERISTIC SYMBOL RATING UNIT
Output Voltage
KRC851U 856U
V
O
50 V
Input Voltage
KRC851U
V
I
20, -10
V
KRC852U 30, -10
KRC853U 40, -10
KRC854U 40, -10
KRC855U 12, -5
KRC856U 20, -5
Output Current
KRC851U 856U
I
O
100 mA
Power Dissipation
PD*
200 mW
Junction Temperature
T
j
150
Storage Temperature Range
T
stg
-55 150
TYPE KRC851U KRC852U KRC853U KRC854U KRC855U KRC856U
MARK NA NB NC ND NE NF
EQUIVALENT CIRCUIT (TOP VIEW)
* Total Rating.
Marking
OUT
R1
IN
R2
COMMON
B
B1
DIM MILLIMETERS
1
C
A
2
A1
C
3
H
1. Q COMMON (EMITTER)
1
2. Q IN (BASE)
1
3. Q OUT (COLLECTOR)
2
4. Q COMMON (EMITTER)
2
5. Q IN (BASE)
2
6. Q OUT (COLLECTOR)
1
G
6
A
5
B
D
4
B1
C
D
G
H
T
T
_
2.00 0.20
+
_
+
1.3 0.1A1
_
2.1 0.1
+
_
1.25 0.1
+
0.65
0.2+0.10/-0.05
0-0.1
_
0.9 0.1
+
0.15+0.1/-0.05
US6
65 4
Q1
Q2
1
23
456
Lot No.
Type Name
123

2008. 9. 23 2/6
KRC851U~KRC856U
Revision No : 3
ELECTRICAL CHARACTERISTICS (Ta=25 )
Note : * Characteristic of Transistor Only.
CHARACTERISTIC SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Output Cut-off Current
KRC851U 856U
I
O(OFF)
VO=50V, VI=0
- - 500 nA
DC Current Gain
KRC851U
G
I
VO=5V, IO=10mA
30 55 KRC852U 50 80 KRC853U 70 120 KRC854U 80 200 KRC855U
80 200 KRC856U
80 200 -
Output Voltage
KRC851U 856U
V
O(ON)
IO=10mA, II=0.5mA
- 0.1 0.3 V
Input Voltage (ON)
KRC851U
V
I(ON)
VO=0.2V, IO=5mA
- 1.5 2.0
V
KRC852U - 1.8 2.4
KRC853U - 2.1 3.0
KRC854U - 2.8 5.0
KRC855U - 0.8 1.1
KRC856U - 0.9 1.3
Input Votlage (OFF)
KRC851U 854U
V
I(OFF)
VO=5V, IO=0.1mA
1.0 1.2 V
KRC855U 856U
0.5 0.65 -
Transition Frequency
KRC851U 856U
fT * VO=10V, IO=5mA
- 200 - MHz
Input Current
KRC851U
I
I
VI=5V
- - 1.8
mA
KRC852U - - 0.88
KRC853U - - 0.36
KRC854U - - 0.18
KRC855U - - 3.6
KRC856U - - 1.8

2008. 9. 23 3/6
KRC851U~KRC856U
Revision No : 3
ELECTRICAL CHARACTERISTICS (Ta=25 )
CHARACTERISTIC SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Switching
Time
Rise Time
KRC851U
t
r
VO=5V
V
IN
=5V
R
L
=1k
- 0.03 -
S
KRC852U - 0.05 KRC853U - 0.12 KRC854U - 0.22 KRC855U
- 0.01 -
KRC856U
- 0.03 -
Storage Time
KRC851U
t
stg
- 2.0 KRC852U - 2.0 KRC853U - 2.0 KRC854U - 2.0 KRC855U - 2.0 KRC856U - 2.0 -
Fall Time
KRC851U
t
f
- 0.12 KRC852U - 0.36 KRC853U - 0.35 KRC854U - 0.6 KRC855U - 0.1 KRC856U - 0.19 -

2008. 9. 23 5/6
KRC851U~KRC856U
Revision No : 3
KRC851U
10k
5k
(µA)
3k
O
1k
500
300
100
OUTPUT CURRENT I
50
30
0.6
Ta=100 C
0.8 1.0 1.2 1.4 1.6 1.8 2.0
INPUT OFF VOLTAGE V
KRC853U
10k
5k
(µA)
3k
O
IO - V
Ta=25 C
IO - V
I(OFF)
Ta=-25 C
I(OFF)
IO - V
I(OFF)
KRC852U
V =5V
O O
(V)
I(OFF)
V =5V
O
10k
5k
(µA)
3k
O
1k
500
300
100
OUTPUT CURRENT I
50
30
0.6
a=100 C
T
INPUT OFF VOLTAGE V
KRC854U
10k
5k
(µA)
3k
O
Ta=25 C
IO - V
I(OFF)
Ta=-25 C
I(OFF)
V =5V
(V)
V =5V
O
2.01.81.61.41.21.00.8
1k
500
300
100
OUTPUT CURRENT I
50
30
0.6
Ta=100 C
INPUT OFF VOLTAGE V
KRC855U
10k
5k
(µA)
3k
O
1k
500
300
100
OUTPUT CURRENT I
50
30
0
Ta=2
IO - V
Ta=25
Ta=100 C
5 C
C
1k
500
Ta=-25 C
2.01.81.61.41.21.00.8
(V)
I(OFF)
I
I(OFF)
V =5V
O
Ta=-25 C
1.41.21.00.80.60.40.2
300
100
OUTPUT CURRENT I
50
30
10k
5k
(µA)
3k
O
1k
500
300
100
OUTPUT CURRENT I
50
30
Ta=100 C
0.8 1.0 1.2 1.4 1.6 1.8 2.0
INPUT OFF VOLTAGE V
KRC856U
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
Ta=25 C
- V
O
Ta=25 C
Ta=100 C
a=-25 C
T
I(OFF)
Ta=-25 C
I(OFF)
(V)
V =5V
O
INPUT OFF VOLTAGE V
(V) INPUT OFF VOLTAGE V
I(OFF)
I(OFF)
(V)