
5–1
FEATURES
CTR Minimum
MCA230/255, 100%
MCA231, 200%
Isolation Test Voltage, 5300 VAC
Coupling Capacitance, 0.5 pF
Fast Rise Time, 10
Fast Fall Time, 35
Underwriters Lab File #E52744
VDE #0884 Available with Option 1
DESCRIPTION
RMS
μ
s
s
μ
The MCA230/231/255 are industry standard opto-
couplers, consisting of a Gallium Arsenide infrared
LED and a silicon phototdarlington. These opto-
couplers are constructed with a high voltage insu-
lation, double molded packaging process which
offers 7.5 KV withstand test capability.
Maximum Ratings
Emitter
Reverse Voltage .................................................6 V
Continuous Forward Current........................ 60 mA
Power Dissipation at 25
°
C ..........................135 mW
Derate Linearly from 25
°
C ......................1.8 mW/
Detector
Collector-Emitter Breakdown Voltage
MCA230/231.................................................30 V
MCA255........................................................55 V
Emitter-Collector Breakdown Voltage ................7 V
Collector-Base Breakdown Voltage
MCA230/231.................................................30 V
MCA255........................................................55 V
Power Dissipation at 25
°
C ..........................210 mW
Derate Linearly from 25
°
C ......................2.8 mW/
Package
Total Package Dissipation at 25
(LED plus Detector) ................................260 mW
Derate Linearly from 25
°
C ......................3.5 mW/
Storage Temperature .................. –55
Operating Temperature .............. –55
Lead Soldering Time at 260
Isolation Test Voltage ........................5300 VAC
Isolation Resistance
V
IO
=500 V, T
A
=25
°
C..................................10
V
IO
=500 V, T
A
=100
°
C................................10
°
C
°
C
°
C
°
°
°
C
C
C
°
°
C to +150
C to +100
°
C ....................10 sec.
RMS
12
11
Characteristics
(T
A
=25
°
C)
Symbol
Min.
Typ.
Max.
Unit
Condition
Emitter
Forward Voltage
Reverse Current
J unction
Capacitance
Detector
BV
CEO
MCA230/231
MCA255
BV
ECO
BV
MCA230/231
MCA55
I
CEO
Package
V
CEsat
V
I
R
C
F
1.1
1.5
10
V
μ
pF
I
V
V
F
=50 mA
=3 V
=3 V
A
R
J
50
R
30
30
V
V
I
I
C
C
=100
=100
μ
μ
A, I
A, I
F
F
=0 mA
=0 mA
7
30
55
V
V
V
I
I
I
E
=10
=10
=10
μ
μ
μ
A, I
A, I
A, I
F
=0 mA
=0 mA
F
=0 mA
C
C
F
100
nA
V
CE
=10 V, I
F
=0 mA
0.8
1.0
1.0
1.0
1.2
V
V
V
V
V
I
I
I
I
I
CE
C
C
C
C
=2 mA, I
=I
=50 mA
=2 mA, I
=10 mA, I
=50 mA, I
F
=16 mA
F
=1 mA
F
=5 mA
F
=10 mA
DC Current
Transfer Ratio
MCA230/255
MCA231
Capacitance
Input to Output
Switching Times
CTR
CTR
100
200
%
%
V
V
CE
CE
=5 V, I
=5 V, I
F
F
=10 mA
=1 mA
C
t
on
t
off
IO
0.5
10
35
pF
μ
μ
s
s
R
V
L
CE
=100
=10 V
Dimensions in inches (mm)
1
2
3
6
5
4
Base
Collector
Emitter
Anode
Cathode
NC
.010 (.25)
.014 (.35)
.300 (7.62)
.347 (8.82)
.110 (2.79)
.150 (3.81)
.130 (3.30)
.150 (3.81)
.020 (.051) min.
.300 (7.62)
typ.
.031 (0.80)
.035 (0.90)
.100 (2.54) typ.
.039
(1.00)
min.
.018 (0.45)
.022 (0.55)
.248 (6.30)
.256 (6.50)
.335 (8.50)
.343 (8.70)
Pin One ID.
6
5
4
1
2
3
18
°
typ.
4
°
typ.
MCA230/231/255
PHOTODARLINGTON
OPTOCOUPLER