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Product Detailed Parameters
- Description：OPTOISOLTR 5.3KV 1CH TRANS 4-SMD
- Series：SFH618A-4
- Mfr：Isocom Components 2004 LTD
- Package：Tape & Reel (TR),Cut Tape (CT)
- Number of Channels：1
- Voltage - Isolation：5300Vrms
- Current Transfer Ratio (Min)：160% @ 1mA
- Current Transfer Ratio (Max)：320% @ 1mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：4µs, 3µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：55V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.5V (Max)
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：400mV
- Operating Temperature：-30°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：4-SMD, Gull Wing
- Supplier Device Package：4-SMD
- Grade：-
- Qualification：-
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Overview
The SFH618A-4XSMT&R is a single-channel optocoupler featuring an infrared LED and NPN silicon phototransistor in a surface-mount package. It provides high isolation voltage of 5 kVrms and supports a maximum forward current of 50 mA. The device offers a current transfer ratio of 160% at 1 mA input, with a minimum collector-emitter breakdown voltage (BVCEO) of 55 V. Designed for low input current applications starting at 0.5 mA, it ensures reliable signal transmission between systems with different potentials.
Feature Summary
- Integrates an infrared light emitting diode with an NPN silicon photo transistor for optical isolation
- Provides high electrical isolation capability suitable for separating circuits of different potentials
- Features low input current requirements to enhance energy efficiency in control systems
Applications
- Computer terminals
- Industrial systems controllers
- Measuring instruments
Procurement Notes
Verify the specific suffix 'SMT&R' confirms the tape-and-reel surface mount packaging variant. Ensure compatibility with automated pick-and-place equipment due to the SMD form factor. Confirm RoHS compliance status and SVHC declarations against current regulatory standards before integration into final assemblies.
Selection Notes
Select this component when surface-mount technology is required for compact circuit board designs. Choose based on the need for high isolation voltage and low input current operation. Consider the 55 V output breakdown voltage for appropriate load switching applications within safe operating limits.
Part Context
This part belongs to the SFH618A series of low input current phototransistor optically coupled isolators. The series includes various package options such as DIP and surface mount variants. The manufacturer specifies custom electrical selections are available for specialized industrial requirements.
Replacement Considerations
Public confirmed substitute part numbers are not provided in the source documentation. Verify pinout and electrical parameters against potential alternatives if direct substitution is considered.
