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：OPTOISOLTR 5.3KV 1CH TRANS 4-DIP
- Series：SFH628A-3
- Mfr：Isocom Components 2004 LTD
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5300Vrms
- Current Transfer Ratio (Min)：100% @ 1mA
- Current Transfer Ratio (Max)：320% @ 1mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：4µs, 3µs
- Input Type：AC, DC
- Output Type：Transistor
- Voltage - Output (Max)：55V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.5V (Max)
- Current - DC Forward (If) (Max)：50 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：-
Download product information
Overview
The SFH628A-3G is a single-channel optocoupler featuring an AC input configuration with a transistor output. It utilizes inverse parallel infrared LEDs and NPN silicon phototransistors within a 4-pin surface mount PDIP package. Key electrical parameters include a maximum forward current of 50 mA, an isolation voltage of 5.3 kVrms, and a typical rise time of 4 µs. The device supports a minimum current transfer ratio of 160% and a maximum of 500%, ensuring reliable signal transmission across isolated circuits.
Feature Summary
- AC input design utilizing inverse parallel infrared light emitting diodes for direct alternating current sensing
- NPN silicon phototransistor output structure providing digital switching capability
- High isolation voltage rating suitable for demanding industrial environments
Applications
- Logic-to-logic isolators in noisy work environments
- Line receiver circuits
- Programmable current level sensors
- Digital control for motors and servo machines
Procurement Notes
Verify the specific suffix 'G' against official Isocom documentation to confirm RoHS compliance status and exact pinout configuration. Ensure the selected variant matches the required surface mount packaging type. Cross-reference datasheet specifications for isolation voltage and current transfer ratios prior to integration into final designs.
Selection Notes
Select this component when AC input detection is required without external rectification. The inverse parallel LED structure simplifies circuit design for alternating signals. Evaluate the current transfer ratio range to ensure adequate drive capability for downstream logic levels. Confirm package compatibility with automated assembly processes.
Part Context
The SFH628A series represents Isocom's line of optical couplers designed as industry standard replacements. These devices combine infrared emission with silicon phototransistor reception. The series targets applications requiring robust electrical isolation between input and output sections while maintaining compact form factors.
Replacement Considerations
Isocom positions the SFH628A series as a replacement for legacy components such as the PS2505. Verify pinout compatibility and electrical parameter equivalence before substitution. Consult official cross-reference lists for confirmed alternative part numbers.
