SFH618A-2

$0.15

Description：OPTOISOLTR 5.3KV 1CH TRANS 4-DIP
Series：SFH618A-2
Mfr：Isocom Components 2004 LTD
Package：Tube

SKU:ee731f9310a9 Category: Transistor, Photovoltaic Output Optoisolators Brand: Isocom Components 2004 LTD

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Product introduction

Product Detailed Parameters

Description：OPTOISOLTR 5.3KV 1CH TRANS 4-DIP
Series：SFH618A-2
Mfr：Isocom Components 2004 LTD
Package：Tube
Number of Channels：1
Voltage - Isolation：5300Vrms
Current Transfer Ratio (Min)：63% @ 1mA
Current Transfer Ratio (Max)：125% @ 1mA
Turn On / Turn Off Time (Typ)：6µs, 5.5µs
Rise / Fall Time (Typ)：3.5µs, 5µs
Input Type：DC
Output Type：Transistor
Voltage - Output (Max)：55V
Current - Output / Channel：-
Voltage - Forward (Vf) (Typ)：1.5V
Current - DC Forward (If) (Max)：50 mA
Vce Saturation (Max)：400mV
Operating Temperature：-55°C ~ 100°C
Mounting Type：Through Hole
Package / Case：4-DIP (0.300", 7.62mm)
Supplier Device Package：4-DIP
Grade：-
Qualification：-

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SFH618A-2

Overview

The SFH618A-2 is a single-channel optically coupled isolator featuring an infrared light-emitting diode and an NPN silicon phototransistor. It provides high isolation voltage of 5300Vrms (7.5kV peak) and a minimum collector-emitter breakdown voltage (BVCEO) of 55V. The device supports low input current operation at 0.5mA with a minimum current transfer ratio of 32%. It is housed in a space-efficient dual in-line plastic package and undergoes 100% electrical parameter testing.

Feature Summary

Combines infrared LED with NPN silicon phototransistor for signal transmission between systems of different potentials
Offers high isolation voltage capability for robust circuit protection
Designed for low input current operation to reduce power consumption
Ensures reliability through comprehensive 100% electrical parameter testing

Applications

Computer terminals
Industrial systems controllers
Measuring instruments
Signal transmission between systems of different potentials and impedances

Procurement Notes

Verify the specific ordering suffix when sourcing, as options such as 'G' indicate a 10mm lead spread. Confirm compliance requirements including UL recognition under File No. E91231 and pending VDE 0884 approval. Ensure the selected variant matches the required package type and lead configuration for your assembly process.

Selection Notes

Select this component for applications requiring galvanic isolation with low drive current capabilities. The NPN phototransistor output is suitable for interfacing with digital logic circuits. Consider the 5300Vrms isolation rating for safety-critical industrial environments. Evaluate the 55V minimum BVCEO to ensure compatibility with the load voltage requirements of the target application circuit.

Part Context

The SFH618A series includes variants like the SFH618A-3 and SFH618A-4, which differ primarily in their current transfer ratios. While the SFH618A-2 offers a minimum CTR of 32% at 0.5mA, other series members provide higher gain characteristics. All variants share the same fundamental construction of an IR LED paired with an NPN phototransistor in a DIP package.