7

Insulation and Safety Related Specifications

Parameter

Symbol

8-Pin DIP

(300 Mil)

Value

SO-8

Value

Widebody

(400 Mil)

Value

Units

Conditions

Minimum External

Air Gap (External

Clearance)

L(101)

7.1

4.9

9.6

mm

Measured from input terminals to

output terminals, shortest distance

through air.

Minimum External

Tracking (External

Creepage)

L(102)

7.4

4.8

10.0

mm

Measured from input terminals to out-

put terminals, shortest distance path

along body.

Minimum Internal

Plastic Gap

(Internal Clearance)

0.08

0.08

1.0

mm

Through insulation distance, conductor

to conductor, usually the direct distance

between the photoemitter and photo-

detector inside the optocoupler cavity.

Minimum Internal

Tracking (Internal

Creepage)

NA

NA

4.0

mm

Measured from input terminals to out-

put terminals, along internal cavity.

Tracking Resistance

(Comparative

Tracking Index)

CTI

200

200

200

Volts

DIN IEC 112/VDE 0303 Part 1

Isolation Group

IIIa

IIIa

IIIa

Material Group

(DIN VDE 0110, 1/89, Table 1)

Option 300 - surface mount classification is Class A in accordance with CECC 00802.