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Product Detailed Parameters
- Description：OPTOISOLTR 5.3KV 1CH TRANS 4-DIP
- Series：-
- Mfr：Vishay Semiconductor Opto Division
- Package：Tube
- 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)：6µs, 5.5µs
- Rise / Fall Time (Typ)：3.5µs, 5µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：55V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.1V
- Current - DC Forward (If) (Max)：60 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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Overview
The SFH618A-4 is a single-channel transistor output optocoupler manufactured by Vishay. It features an NPN phototransistor output and provides high isolation voltage of 5300 Vrms. The device operates within a temperature range of -55 °C to +100 °C. Key electrical parameters include a maximum collector-emitter voltage of 55 V, a maximum collector current of 100 mA, and a typical current transfer ratio of 200%. The forward voltage is specified at 1.5 V with a maximum forward current of 60 mA.
Feature Summary
- Provides galvanic isolation between input and output circuits via infrared LED and NPN phototransistor.
- Offers high dielectric strength with 5300 Vrms insulation voltage for safety-critical applications.
- Features UL recognition for compliance with international safety standards.
Applications
- Industrial control systems requiring signal isolation
- Power supply feedback loops
- Microcontroller interface circuits
Procurement Notes
Verify the specific suffix code against official Vishay documentation to confirm current transfer ratio binning and packaging type. Ensure the component meets RoHS directives and UL recognition requirements for your target market. Cross-reference datasheet revisions to confirm pinout consistency and thermal characteristics before finalizing procurement orders.
Selection Notes
Select this component when high isolation voltage and moderate speed are required. Compare current transfer ratio specifications against load requirements. Consider thermal dissipation limits in enclosed environments. Verify package compatibility with existing PCB footprints. Evaluate operating temperature range against environmental conditions.
Part Context
This part belongs to the SFH618A series of transistor output optocouplers. Variants such as SFH618A-2, SFH618A-5, and VO618A-4 share similar physical packages and basic electrical structures but differ in current transfer ratio ranges and specific regulatory approvals. The series is designed for general-purpose isolation tasks.
Replacement Considerations
VO618A-4X016 is listed as a recommended alternative with similar DIP-4 packaging and isolation ratings. Verify current transfer ratio bins and regulatory certifications match application requirements before substitution.
