ISOCOM COMPONENTS LTD
Unit 25B, Park View Road West,
Park View Industrial Estate, Brenda Road
Hartlepool, Cleveland, TS25 1YD
Tel: (01429) 863609 Fax :(01429) 863581
7/12/00
DB92544m-AAS/A1
OPTION G
7.62
0.26
0.5
Dimensions in mm
SURFACE MOUNT
OPTION SM
10.16
7.0
6.0
1.2
7.62
3.0
13
Max
3.35
4.0
3.0
2.54
0.26
7.62
6.62
0.5
OPTICALLY COUPLED
ISOLATOR
PHOTOTRANSISTOR OUTPUT
1
3
4
6
2
5
APPROVALS
l
UL recognised, File No. E91231
DESCRIPTION
The MCT27_ series of optically coupled
isolators consist of an infrared light emitting
diode and NPN silicon photo transistor in a
standard 6 pin dual in line plastic package.
FEATURES
l
Options :-
10mm lead spread - add G after part no.
Surface mount - add SM after part no.
Tape&reel - add SMT&R after part no.
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High Isolation Voltage (5.3kV
RMS
,7.5kV
PK
)
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All electrical parameters 100% tested
l
Custom electrical selections available
APPLICATIONS
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DC motor controllers
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Industrial systems controllers
l
Measuring instruments
l
Signal transmission between systems of
different potentials and impedances
MCT270, MCT271, MCT272, MCT273,
MCT274, MCT275, MCT276, MCT277
ABSOLUTE MAXIMUM RATINGS
(25C unless otherwise specified)
Storage Temperature
-55C to + 150C
Operating Temperature
-55C to + 100C
Lead Soldering Temperature
(1/16 inch (1.6mm) from case for 10 secs) 260C
INPUT DIODE
Forward Current
60mA
Reverse Voltage
6V
Power Dissipation
105mW
OUTPUT TRANSISTOR
Collector-emitter Voltage BV
CEO
30V
(MCT275 only)
BV
CEO
80V
Collector-base Voltage
BV
CBO
70V
Emitter-base Voltage
BV
EBO
5V
Power Dissipation
160mW
POWER DISSIPATION
Total Power Dissipation
200mW
(derate linearly 2.67mW/C above 25C)
10.46
9.86
0.6
0.1
1.25
0.75
ISOCOM INC
1024 S. Greenville Ave, Suite 240,
Allen, TX 75002 USA
Tel: (214) 495-0755 Fax: (214) 495-0901
e-mail info@isocom.com
http://www.isocom.com
PARAMETER
MIN TYP MAX UNITS TEST CONDITION
Input
Forward Voltage (V
F
)
1.2
1.5
V
I
F
= 20mA
Reverse Voltage (V
R
)
3
V
I
R
= 10
A
Reverse Current (I
R
)
10
A
V
R
= 3V
Output
Collector-emitter Breakdown (BV
CEO
)
MCT27x (except MCT275)
30
V
I
C
= 1mA
MCT275
( note 2 )
80
V
Collector-base Breakdown (BV
CBO
)
70
V
I
C
= 100
A
Emitter-base Breakdown (BV
EBO
)
5
V
I
E
=
100
A
Collector-emitter Dark Current (I
CEO
)
50
nA
V
CE
= 10V
Coupled
Current Transfer Ratio (CTR)
MCT270
50
%
10mA I
F
, 10V V
CE
MCT271
45
90
%
MCT272
75
150
%
MCT273
125
250
%
MCT274
225
400
%
MCT275
70
210
%
MCT276
15
60
%
MCT277
100
%
Collector-emitter Saturation VoltageV
CE(SAT)
0.4
V
16mA I
F
, 2mA I
C
Input to Output Isolation Voltage V
ISO
5300
V
RMS
See note 1
7500
V
PK
See note 1
Input-output Isolation Resistance R
ISO
5x10
10
V
IO
= 500V (note 1)
Switching Time t
ON
, t
OFF
MCT270,272
10
s
V
CC
= 5V , R
L
= 100
,
MCT271
7
s
I
C
= 2mA, (fig 1)
MCT273
20
s
MCT274
25
s
MCT275,277
15
s
MCT276
3.5
s
7/12/00
ELECTRICAL CHARACTERISTICS ( T
A
= 25C Unless otherwise noted )
Output
Output
R
L
= 100
Input
10%
90%
90%
10%
t
on
t
r
FIG 1
V
CC
t
off
t
f
Note 1
Measured with input leads shorted together and output leads shorted together.
Note 2
Special Selections are available on request. Please consult the factory.
DB92544m-AAS/A2
DB92544m-AAS/A2
50
Ambient temperature T
A
( C )
150
0
200
Ambient temperature T
A
( C )
Collector power dissipation P
C
(mW)
60
30
20
10
40
50
-30 0 25 50 75 100 125
Forward Current vs. Ambient Temperature
100
Forward current I
F
(mA)
70
80
-30 0 25 50 75 100 125
-30 0 25 50 75 100
Collector-emitter saturation voltage V
CE(S
A
T)
(V)
Collector-emitter Saturation
Voltage vs. Ambient Temperature
0
0.04
0.08
0.12
0.16
0.20
0.24
0.28
I
F
= 16mA
I
C
= 2mA
Ambient temperature T
A
( C )
Collector Power Dissipation vs. Ambient Temperature
Ambient temperature T
A
( C )
0
0.5
1.0
1.5
I
F
= 10mA
V
CE
= 10V
Relative Current Transfer Ratio
vs. Ambient Temperature
Relative current transfer ratio
-30 0 25 50 75 100
1 2 5 10 20 50
0
0.4
0.6
0.8
1.0
1.2
0.2
1.4
V
CE
= 10V
T
A
= 25C
Relative current transfer ratio
Relative Current Transfer Ratio
vs. Forward Current
Forward current I
F
(mA)
Collector Current vs. Collector-emitter Voltage
(Normalised to MCT270,273,275,277)
7/12/00
Collector-emitter voltage V
CE
( V )
Collector current I
C
(mA)
0 2 4 6 8 10
0
10
20
30
40
50
T
A
= 25C
I
F
= 5mA
10
15
20
30
50
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