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Product Detailed Parameters
- Description：OPTOISOLTR 5.3KV 1CH DARL 4-DIP
- Series：-
- Mfr：Vishay Semiconductor Opto Division
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5300Vrms
- Current Transfer Ratio (Min)：1000% @ 1mA
- Current Transfer Ratio (Max)：-
- Turn On / Turn Off Time (Typ)：4.5µs, 29µs
- Rise / Fall Time (Typ)：3.5µs, 14.5µs
- Input Type：DC
- Output Type：Darlington
- Voltage - Output (Max)：300V
- Current - Output / Channel：125mA
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：60 mA
- Vce Saturation (Max)：1.2V
- 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 SFH619A is a single-channel transistor output optocoupler featuring a photodarlington output stage. It provides high current transfer ratio performance with a minimum CTR of 1000% at 1 mA forward current. The device supports a maximum collector-emitter voltage of 300 V and a continuous collector current of 125 mA. Electrical isolation is rated at 5000 Vrms to 5300 Vrms depending on the specific variant. Operating temperature ranges from -55°C to +100°C, with power dissipation limited to 200 mW.
Feature Summary
- High gain photodarlington output structure for efficient signal transmission
- Robust electrical insulation between input and output circuits
- Wide operating temperature range suitable for industrial environments
Applications
- Digital logic signal transmission and level shifting
- Power supply control and switching circuits
- Electrical isolation between circuit stages or systems
- Impedance transformation in isolated interfaces
Procurement Notes
Verify the specific suffix code (e.g., X007T, X009T) against the datasheet to confirm package type and reel specifications. Ensure the required isolation voltage rating matches the application safety standards. Confirm RoHS compliance status if restricted substances are prohibited in the final assembly process.
Selection Notes
Select this component when high current drive capability is required from a low input current source. The photodarlington output allows direct interfacing with loads that require higher current than standard phototransistors provide. Consider the 300 V output voltage rating for medium-voltage isolation applications.
Part Context
This component belongs to Vishay's family of high-gain optocouplers designed for reliable galvanic isolation. The SFH619A utilizes an infrared LED coupled with a Darlington phototransistor array within a compact surface-mount or DIP package. It is engineered for applications demanding high noise immunity and stable performance over wide temperature variations.
Replacement Considerations
LTV-852S is a documented alternative offering similar darlington output characteristics and isolation ratings. Verify pinout compatibility and exact CTR specifications before substitution.
