DESCRIPTION

The SFH618A (DIP) and SFH6186 (SMD) feature a high

current transfer ratio, low coupling capacitance and high

isolation voltage. These couplers have a GaAs infrared

diode emitter, which is optically coupled to silicon planar

phototransistor detector, and is incorporated in a plastic

DIP-4 or SMD package.

The coupling devices are designed for signal transmission

between two electrically separated circuits.The couplers are

end-stackable with 2.54 mm lead spacing. Creepage and

clearance distances of > 8 mm achieved with option 6.

FEATURES

• Good CTR linearity depending on forward current

• Low CTR degradation

• High collector emitter voltage, VCEO = 55 V

• Isolation test voltage, 5300 VRMS

• Low coupling capacitance

• End stackable, 0.100 (2.54 mm) spacing

• High common mode transient immunity

• Material categorization: for definitions of compliance

please see www.vishay.com/doc?99912

APPLICATIONS

• Telecom

• Industrial controls

• Battery powered equipment

• Office machines

AGENCY APPROVALS

The safety application model number covering all products

in this datasheet is SFH618A. This model number should be

used when consulting safety agency documents.

• UL / cUL 1577

• DIN EN 60747-5-5 (VDE 0884-5) available with option 1

• BSI

• CSA

• FIMKO