ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：OPTOISO 4.47KV 1CH TRANS 4-SMD
- Series：SFH617A
- Mfr：Isocom Components 2004 LTD
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：4470Vrms
- Current Transfer Ratio (Min)：100% @ 10mA
- Current Transfer Ratio (Max)：200% @ 10mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：4µs, 3µs
- 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：Surface Mount
- Package / Case：4-SMD, Gull Wing
- Supplier Device Package：4-SMD
- Grade：-
- Qualification：-
Download product information
Overview
The SFH617A-3SM is a single-channel transistor output optocoupler manufactured by Isocom Components. It integrates an infrared LED with an NPN silicon phototransistor in a surface-mount package. Key electrical parameters include a maximum collector-emitter voltage of 70 V and a peak forward current of 50 mA. The device offers a minimum isolation voltage of 4470 Vrms, ensuring robust signal transmission across isolated circuits.
Feature Summary
- Integrates an infrared emitting diode with an NPN silicon phototransistor for optical signal coupling
- Provides high-voltage isolation between input and output circuits via dielectric barrier
- Designed for surface-mount assembly to facilitate automated PCB placement
Applications
- Signal isolation in industrial control systems
- Interface circuits for microprocessor-based logic systems
- Power supply feedback loops requiring galvanic separation
Procurement Notes
Verify the specific suffix 'SM' confirms the surface-mount package variant distinct from through-hole DIP versions. Confirm the manufacturer designation matches Isocom Components 2004 LTD specifications. Ensure the datasheet revision aligns with the required isolation voltage ratings of 4470 Vrms before finalizing component selection.
Selection Notes
Select this component when surface-mount technology is required for compact circuit designs. Consider the 70 V collector-emitter voltage limit for low-voltage switching applications. Evaluate the 50 mA peak forward current capability against drive requirements. Verify that the NPN phototransistor output configuration matches the receiving circuit topology.
Part Context
This part belongs to the SFH617A series of low-input-current phototransistor optically coupled isolators. The series includes various package options such as DIP and SMD configurations. The SFH617A-3SM specifically denotes the surface-mount variant within this family, maintaining consistent electrical characteristics while adapting to different mounting styles.
Replacement Considerations
The VO617A-2 is listed as a recommended alternative for the SFH617A-2 series. Cross-reference pinouts and package dimensions carefully when substituting surface-mount variants. Verify that replacement parts maintain equivalent isolation voltage and current transfer ratio specifications.
