Regulatory Information
The HCPL-7820/7825 has been
approved by the following
organizations:
UL
Recognized under UL 1577,
Component Recognition Program,
FILE E55361.
CSA
Approved under CSA Component
Acceptance Notice #5, File CA
88324.
VDE
Approved according to VDE
0884/06.92.
Insulation and Safety Related Specifications
Parameter
Min. External Air Gap
(External Clearance)
Min. External Tracking Path
(External Creepage)
Min. Internal Plastic Gap
(Internal Clearance)
Symbol
L(IO1)
L(IO2)
Value
7.4
8.0
0.5
Units
mm
mm
mm
Conditions
Measured from input terminals to output
terminals, shortest distance through air
Measured from input terminals to output
terminals, shortest distance path along body
Through insulation distance, conductor to
conductor, usually the direct distance
between the photoemitter and
photodetector inside the optocoupler
cavity
DIN IEC 112/VDE 0303 Part 1
Tracking Resistance
(Comparative Tracking
Index)
Isolation Group
CTI
175
V
III a
Material Group (DIN VDE 0110, 1/89,
Table 1)
Option 300 – surface mount classification is Class A in accordance with CECC 00802.
VDE 0884 (06.92) Insulation Characteristics
Description
Installation classification per DIN VDE 0110, Table 1
for rated mains voltage
≤
300 V rms
for rated mains voltage
≤
600 V rms
Climatic Classification
Pollution Degree (DIN VDE 0110, Table 1)*
Maximum Working Insulation Voltage
Input to Output Test Voltage, Method b**
V
PR
= 1.875 x V
IORM
, Production test with t
p
= 1 sec,
Partial discharge < 5 pC
Input to Output Test Voltage, Method a**
V
PR
= 1.5 x V
IORM
, Type and sample test with t
p
= 60 sec,
Partial discharge < 5 pC
Highest Allowable Overvoltage**
(Transient Overvoltage t
TR
= 10 sec)
Safety-limiting values (Maximum values allowed in the event
of a failure, also see Figure 22)
Case Temperature
Input Power
Output Power
Insulation Resistance at T
S
, V
IO
= 500 V
Symbol
Characteristic
I-IV
I-III
40/100/21
2
848
1591
Unit
V
IORM
V
PR
V
peak
V
peak
V
PR
1273
V
peak
V
TR
6000
V
peak
T
S
P
S,Input
P
S,Output
R
S
175
80
250
≥
1x10
12
°C
mW
mW
Ω
*This part may also be used in Pollution Degree 3 environments where the rated mains voltage is
≤
300 V rms (per DIN VDE 0110).
**Refer to the front of the optocoupler section of the current catalog for a more detailed description of VDE 0884 and other product
safety requirements.
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.
1-236
AGILENT [ AGILENT TECHNOLOGIES, LTD. ]
