
SPEC NO: DSAD1554 REV NO: V.9 DATE: DEC/04/2008 PAGE: 3 OF 9
APPROVED: WYNEC CHECKED: Tracy Deng DRAWN: Ting.Li ERP: 1205000015
PHOTOCOUPLER
Part Number: KB827-B
*Electro-optical Characteristics
Parameter Symbol Conditions Min. Typ. Max. Unit
Input
Forward voltage V
F
I
F
=20mA ___ 1.2 1.4 V
Peak forward voltage V
FM
I
FM
=0.5A ___ ___ 3.0 V
Revers e c urrent I
R
V
R
=4V ___ ___ 10 μA
Outp ut Collector dark current I
CEO
V
CE
=20V,I
F
=0mA ___ ___ 10
-7
nA
Transfer
charact-
eristics
*1
Current transfer ratio CTR I
F
=5mA,V
CE
=5V 50 ___ 600 %
Co lle c to r -e mitter s a turation volta g e V
CE(
sat
)I
F
=20mA , I
C
=1mA ___ 0.1 0.2 V
Cut-off frequency f
c
V
CE
=5V, I
C
=2mA
R
L
=100Ω,-3dB ___ 80 ___ KHz
Response time Rise time
t
r
V
CE
=2V, I
C
=2mA
R
L
=100Ω
___ 4 18 μs
Fall time t
f
___ 3 18 μs
X 100%
Classification table of current transfer ratio is shown below.
CTR= F
I
Ic
Model No. Rank mark CTR(%)
KB827L-B L 50 to 100
KB827A-B A 80 to 160
KB827B-B B 130 to 260
KB827C-B C 200 to 400
KB827D-B D 300 to 600
KB827AB -B A or B 80 to 260
KB827BC -B B or C 130 to 400
KB827CD -B C or D 200 to 600
KB827AC -B A,B or C 80 to 400
KB827BD -B B,C or D 130 to 600
KB827AD -B A,B,C or D 80 to 600
KB827-B L,A,B,C ,D or No mark 50 to 600
A