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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)：250% @ 1mA
- Current Transfer Ratio (Max)：500% @ 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-5 is a single-channel transistor output optocoupler manufactured by Vishay Semiconductor Opto Division. It features an NPN phototransistor output and utilizes a Gallium Arsenide (GaAs) infrared LED for signal transmission. The device provides high isolation voltage of 5300 Vrms and 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 forward current rating of 60 mA. The Current Transfer Ratio (CTR) ranges from 250% to 500%. Typical switching times are 3.5 µs for rise time and 5 µs for fall time.
Feature Summary
- High current transfer ratio for efficient signal coupling
- Low coupling capacitance for improved noise immunity
- High isolation voltage capability for safety-critical applications
Applications
- Industrial control systems requiring galvanic isolation
- Power supply feedback loops
- Signal isolation in microprocessor interfaces
Procurement Notes
Verify the specific suffix code against the manufacturer datasheet to confirm the exact CTR bin and packaging configuration. Ensure that the DIP-4 through-hole package dimensions match the target PCB footprint. Confirm RoHS compliance status and lead time requirements with authorized distributors prior to ordering.
Selection Notes
Select this component when a high CTR range of 250-500% is required for robust signal transmission. The DIP-4 package is suitable for through-hole assembly processes. Consider the 5300 Vrms isolation rating for applications demanding strict electrical separation between input and output circuits.
Part Context
The SFH618A-5 belongs to the Vishay SFH618 series of transistor output optocouplers. This series is characterized by the use of GaAs LEDs to achieve high speed and reliability. The part is designed for general-purpose isolation tasks where high CTR and high isolation voltage are primary design constraints.
Replacement Considerations
Cross-reference with other SFH618 variants such as SFH618A-2 or SFH618A-4 if different CTR bins are acceptable. Verify pinout compatibility before substituting with generic transistor output optocouplers.
