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Product Detailed Parameters
- Description：OPTOISOLTR 5.3KV 1CH TRANS 4-DIP
- Series：SFH615A
- Mfr：Isocom Components 2004 LTD
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5300Vrms
- Current Transfer Ratio (Min)：160% @ 10mA
- Current Transfer Ratio (Max)：320% @ 10mA
- Turn On / Turn Off Time (Typ)：6µs, 25µs
- Rise / Fall Time (Typ)：4.6µs, 15µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：70V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.65V (Max)
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：400mV
- Operating Temperature：-30°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 SFH615A-4 is a single-channel optically coupled isolator featuring an infrared LED and NPN silicon phototransistor. It provides AC isolation voltage of 5300 VRMS and peak voltage of 7500 VPK. The device supports a maximum forward current of 50 mA and offers high current transfer ratios with low input current requirements. Collector-emitter saturation voltage is specified at 0.4 V under standard test conditions.
Feature Summary
- Combines infrared light emitting diode with NPN silicon phototransistor for signal isolation
- Provides high dielectric strength between input and output circuits
- Designed for low input current operation to reduce power consumption
Applications
- Industrial control systems requiring galvanic isolation
- Signal transmission across isolated ground planes
- Switching applications in power supply circuits
Procurement Notes
Verify the specific ordering suffix matches the required package style, as variations exist between through-hole and surface mount configurations. Confirm that the component meets the necessary isolation voltage ratings for the intended application environment. Check datasheet notes regarding derating curves for temperature and current limits before finalizing procurement specifications.
Selection Notes
Select this component when high isolation voltage and low input current are critical design parameters. Consider the package type availability, as surface mount and through-hole variants share similar electrical characteristics but differ in physical footprint. Ensure the collector-emitter voltage rating exceeds the maximum load voltage in the target circuit design.
Part Context
This part belongs to the SFH615A series of low input current phototransistor optocouplers. The series includes various channel counts and package styles, such as SMT and DIP options. All variants maintain consistent core electrical performance regarding isolation voltage and current transfer ratio while differing in physical mounting characteristics.
Replacement Considerations
Direct substitutes include other SFH615A series variants like SFH615A-2XSMT or SFH615A-3G if pinout compatibility is verified. Cross-referencing with generic NPN phototransistor optocouplers requires matching isolation voltage and CTR specifications precisely.
