Table 3. Insulation and Safety Related Specifications
Parameter
Symbol
Value
Unit
Conditions
Minimum External Air Gap
(External Clearance)
L(1±1)
80±
mm
Measured from input terminals to output terminals,
shortest distance through air
Minimum External
Tracking (External Creepage)
L(1±2)
CTI
80±
±0.
mm
mm
Measured from input terminals to output terminals,
shortest distance path along body
Minimum Internal Plastic Gap
(Internal Clearance)
Through insulation distance, conductor to conductor,
usually the direct distance between the photoemitter
and photodetector inside the optocoupler cavity
Tracking Resistance
(Comparative Tracking Index)
> 17.
IIIa
V
DIN IEC 112/VDE ±3±3 Part 1
Isolation Group
Material Group (DIN VDE ±11±, 1/89, Table 1)
[1]
Table 4. IEC/EN/DIN EN 60747-5-5 Insulation Characteristics
Description
Symbol
Value
Units
Installation classification per DIN VDE ±11±/1089, Table 1
for rated mains voltage ≤ 1.± Vrms
I-IV
I-IV
I-IV
I-IV
I-III
for rated mains voltage ≤ 3±± Vrms
for rated mains voltage ≤ 4.± V rms
for rated mains voltage ≤ 6±± Vrms
for rated mains voltage ≤ 1±±± Vrms
Climatic Classification
../1±./21
2
Pollution Degree (DIN VDE ±11±/1089)
Maximum Working Insulation Voltage (Pending Qualification)
VIORM
VPR
123±
23±6
Vpeak
Vpeak
Input to Output Test Voltage, Method b
VIORM x 1087. = VPR, 1±±5 Production Test with tm = 1 sec, Partial Discharge < . pC
Input to Output Test Voltage, Method a
VIORM x 106 = VPR, Type and Sample Test, tm = 1± sec, Partial Discharge < . pC
VPR
1968
8±±±
Vpeak
Vpeak
ꢀighest Allowable Overvoltage (Transient Overvoltage, tini = 6± sec)
VIOTM
Safety-limiting values (Maximum values allowed in the event of a failure)
Case Temperature
Input Current [2]
Output Power [2]
TS
17.
23±
6±±
°C
mA
mW
IS,INPUT
PS,OUTPUT
Insulation Resistance at TS, VIO = .±± V
Notes:
RS
≥ 1±9
10 Insulation characteristics are guaranteed only within the safety maximum ratings, which must be ensured by protective circuits within the
application0
4
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