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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)：50% @ 5mA
- Current Transfer Ratio (Max)：600% @ 5mA
- Turn On / Turn Off Time (Typ)：2µs, 25µs
- Rise / Fall Time (Typ)：-
- Input Type：AC, DC
- Output Type：Transistor
- Voltage - Output (Max)：70V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.25V
- 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 SFH620AA is a single-channel optocoupler from Vishay Semiconductor Opto Division, featuring an infrared LED input and an NPN phototransistor output. It provides high isolation voltage of 5300 Vrms and operates within a temperature range of -55°C to +100°C. The device supports a maximum forward current of 60 mA with a typical forward voltage of 1.65 V. Key electrical parameters include a collector-emitter saturation voltage of 400 mV max, collector current of 100 mA max, and power dissipation of 150 mW. Rise and fall times are typically 2 µs.
Feature Summary
- High current transfer ratio for efficient signal transmission
- Low coupling capacitance for improved noise immunity
- High isolation voltage ensuring robust circuit protection
Applications
- Microcontroller interface circuits
- General-purpose isolation applications
- Industrial control systems
Procurement Notes
Verify the specific Current Transfer Ratio (CTR) grade required for your application, as the SFH620A series includes variants with different CTR ranges (e.g., 40-125%, 100-600%). Confirm package type compatibility, distinguishing between through-hole DIP and surface-mount Gull Wing options. Ensure the selected variant meets the necessary isolation voltage and operating temperature specifications for your design environment.
Selection Notes
Select the SFH620AA when high isolation and fast switching speeds are required in a compact form factor. Consider the specific CTR requirements of your load; if higher gain is needed, variants like the SFH620AGB may be more suitable. Verify that the 70 V collector-emitter voltage rating aligns with your output circuit constraints. Check RoHS compliance status if environmental regulations apply to your manufacturing process.
Part Context
The SFH620AA belongs to the SFH620A family of transistor-output optocouplers designed for general-purpose isolation. These components utilize GaAs technology for consistent performance. The family shares common pinouts and mechanical dimensions across different CTR grades, allowing for flexible design integration while maintaining standardized isolation characteristics and thermal management profiles.
Replacement Considerations
Direct substitutes within the same family include SFH620A-1, SFH620A-2, and SFH620A-3, which differ primarily in Current Transfer Ratio (CTR) ranges. Surface-mount equivalents such as SFH620AGB offer identical electrical performance in a Gull Wing package. Verify CTR and package style compatibility before substitution.
