Insulation and Safety Related Specifications
Parameter
Symbol Value Units
Conditions
Min. External Clearance
(External Air Gap)
L(IO1)
9.6
10.0
1.0
mm
mm
mm
Measured from input terminals to output
terminals, shortest distance through air
Min. External Creepage
(External Tracking Path)
L(IO2)
Measured from input terminals to output
terminals, shortest distance path along body
Min. Internal Clearance
(Internal Plastic Gap)
Through insulation distance conductor to
conductor, usually the direct distance
between the photoemitter and photodetector
inside the optocoupler cavity
Min. Internal Creepage
(Internal Tracking Path)
4.0
mm
V
The shortest distance around the border
between two different insulating materials
measured between the emitter and detector
Comparative Tracking Index
Isolation Group
CTI
200
IIIa
DIN IEC 112/VDE 0303 PART 1
Material group (DIN VDE 0110)
Option 300 – surface mount classification is Class A in accordance with CECC 00802.
VDE 0884 (06.92) Insulation Characteristics (Option #050 Only)
Description
Symbol
Characteristic
Unit
Installation classification per DIN VDE 0110/1.89, Table 1
For rated mains voltage ≤ 600 V rms
I-IV
I-III
For rated mains voltage ≤ 1000 V rms
Climatic Classification (DIN IEC 68 part 1)
Pollution Degree (DIN VDE 0110 Part 1/1.89)
Maximum Working Insulation Voltage
55/100/21
2
V
1414
2651
V peak
V peak
IORM
Input to Output Test Voltage, Method b*
VPR = 1.875 x VIORM, 100% Production Test with
tm = 1 sec, Partial Discharge < 5 pC
VPR
Input to Output Test Voltage, Method a*
VPR = 1.5 x VIORM, Type and sample test, tm = 60 sec,
Partial Discharge < 5 pC
VPR
2121
8000
V peak
V peak
Highest Allowable Overvoltage*
V
IOTM
(Transient Overvoltage, tini = 10 sec)
Safety-Limiting Values
(Maximum values allowed in the event of a failure,
also see Figure 11)
Case Temperature
Current (Input Current IF, PS = 0)
Output Power
TS
IS
150
400
700
°C
mA
mW
PS,OUTPUT
Insulation Resistance at TS, VIO = 500 V
RS
>109
Ω
*Refer to the front of the Optocoupler section of the current catalog for a more detailed description of VDE 0884 and other product
safety regulations.
Note: Optocouplers providing safe electrical separation per VDE 0884 do so only within the safety-limiting values to which they are
qualified. Protective cut-out switches must be used to ensure that the safety limits are not exceeded.
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