4
Insulation and Safety Related Specications
Parameter Symbol Value Units Conditions
Minimum External Air Gap
(External Clearance)
L(101) 8.0 mm Measured from input terminals to output terminals,
shortest distance through air
Minimum External Tracking
(External Creepage)
L(102) 8.0 mm Measured from input terminals to output terminals,
shortest distance path along body
Minimum Internal Plastic Gap
(Internal Clearance)
0.5 mm Through insulation distance, conductor to conductor,
usually the direct distance between the photoemitter and
photodetector inside the optocoupler cavity
Tracking Resistance
(Comparative Tracking Index)
CTI >175 V DIN IEC 112/VDE 0303 Part 1
Isolation Group IIIa Material Group (DIN VDE 0110, 1/89, Table 1)
IEC/EN/DIN EN 60747-5-5 Insulation Characteristics (Option 060)
[1]
Description Symbol Value Units
Installation classication per DIN VDE 0110/1.89, Table 1
for rated mains voltage ≤ 150 Vrms
for rated mains voltage ≤ 300 Vrms
for rated mains voltage ≤ 450 V rms
for rated mains voltage ≤ 600 Vrms
for rated mains voltage ≤ 1000 Vrms
I-IV
I-IV
I-IV
I-IV
I-III
Climatic Classication 55/100/21
Pollution Degree (DIN VDE 0110/1.89) 2
Maximum Working Insulation Voltage V
IORM
1414 V
peak
Input to Output Test Voltage, Method b
V
IORM
x 1.875 = V
PR
, 100% Production Test with t
m
= 1 sec,
Partial Discharge < 5 pC
V
PR
2652 V
peak
Input to Output Test Voltage, Method a
V
IORM
x 1.5 = V
PR
, Type and Sample Test, t
m
= 10 sec,
Partial Discharge < 5 pC
V
PR
2262 V
peak
Highest Allowable Overvoltage (Transient Overvoltage, t
ini
= 60 sec) V
IOTM
8000 V
peak
Safety-limiting values
(Maximum values allowed in the event of a failure)
Case Temperature
Input Current
[2]
Output Power
[2]
T
S
I
S,INPUT
P
S,OUTPUT
175
230
600
°C
mA
mW
Insulation Resistance at T
S
, V
IO
= 500 V R
S
≥ 10
9
Ω
Notes:
1. Insulation characteristics are guaranteed only within the safety maximum ratings, which must be ensured by protective circuits within the
application.
2. Safety-limiting parameters are dependent on ambient temperature. The Input Current, I
S,INPUT
, derates linearly above 25 °C free-air temperature at
a rate of 2.53 mA/°C; the Output Power, P
S,OUTPUT
, derates linearly above 25 °C free-air temperature at a rate of 4 mW/°C.