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Product Detailed Parameters
- Description：OPTOISOLTR 5.3KV 1CH TRANS 4-SMD
- Series：SFH615A
- Mfr：Isocom Components 2004 LTD
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5300Vrms
- Current Transfer Ratio (Min)：100% @ 10mA
- Current Transfer Ratio (Max)：200% @ 10mA
- Turn On / Turn Off Time (Typ)：4.2µs, 23µs
- Rise / Fall Time (Typ)：3µs, 14µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：70V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.65V
- 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 SFH615A-3SM is a single-channel optocoupler manufactured by Isocom Components, featuring an NPN phototransistor output. It provides electrical isolation with a rated voltage of 5000Vrms and supports a maximum collector-emitter voltage of 70V. The device utilizes a surface-mount SDIP-4 package and operates within a temperature range of -30°C to 100°C. Key electrical characteristics include a minimum current transfer ratio of 160% at 10mA input current and a typical switching time of 6µs for turn-on and 25µs for turn-off.
Feature Summary
- Provides high-voltage galvanic isolation between input and output circuits
- Features an NPN phototransistor output stage for digital signal transmission
- Designed for surface-mount assembly in compact electronic layouts
Applications
- Logic-to-logic isolation in noisy industrial environments
- Line receiver circuits
- Programmable current level sensors
- Computer and peripheral device interfaces
Procurement Notes
Verify the specific Current Transfer Ratio (CTR) bin required for your design, as the datasheet indicates a minimum of 160% at 10mA. Confirm that the operating temperature range of -30°C to 100°C aligns with your system's thermal requirements. Ensure the SDIP-4 footprint matches your PCB layout constraints before finalizing procurement.
Selection Notes
Select this component when a robust NPN output interface is needed for DC input applications requiring moderate speed. The 5000Vrms isolation rating makes it suitable for safety-critical separation tasks. Consider the 160% CTR minimum for efficient drive requirements compared to lower-gain alternatives.
Part Context
Isocom Components specializes in industry-standard replacements for discontinued optocouplers. This part belongs to the SFH615A series, which serves as a direct replacement for similar Vishay devices like the VO615A series. The manufacturer focuses on providing reliable isolation solutions for commercial and industrial markets.
Replacement Considerations
The SFH615A-3SM is documented as a functional equivalent to the Vishay VO615A-4X007T. Both parts share identical pinouts, packages, and core electrical specifications, allowing for direct substitution in existing designs without circuit modification.
