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Product Detailed Parameters
- Description：OPTOISO 4.17KV TRANS W/BASE 6DIP
- Series：-
- Mfr：onsemi
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：4170Vrms
- Current Transfer Ratio (Min)：10% @ 10mA
- Current Transfer Ratio (Max)：-
- Turn On / Turn Off Time (Typ)：2µs, 2µs
- Rise / Fall Time (Typ)：-
- Input Type：DC
- Output Type：Transistor with Base
- Voltage - Output (Max)：30V
- Current - Output / Channel：-
- Voltage - Forward (Vf) (Typ)：1.18V
- Current - DC Forward (If) (Max)：60 mA
- Vce Saturation (Max)：500mV
- Operating Temperature：-40°C ~ 100°C
- Mounting Type：Through Hole
- Package / Case：6-DIP (0.300", 7.62mm)
- Supplier Device Package：6-DIP
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Overview
The 4N28VM is a high-speed single-channel optocoupler manufactured by onsemi. It integrates an AlGaAs infrared LED emitter with a silicon NPN phototransistor detector, providing electrical isolation between input and output circuits. The device features a standard six-pin DIP package designed for through-hole mounting. Key electrical characteristics include a minimum CTR of 100% at IF=5mA and VCE=5V, ensuring reliable signal transmission. It supports a propagation delay of 3 microseconds and a transition time of 2.5 microseconds, suitable for digital communication applications requiring galvanic isolation.
Feature Summary
- Integrates an AlGaAs infrared LED with a silicon NPN phototransistor for efficient light-to-electricity conversion
- Provides robust electrical isolation between input and output circuits to protect sensitive components
- Features fast switching speeds with low propagation delay for high-frequency digital signal transmission
Applications
- Digital isolation in microprocessor systems
- Signal coupling in industrial control circuits
- Power supply feedback loops for voltage regulation
Procurement Notes
Verify the specific suffix 'VM' against official datasheets to confirm packaging details and compliance certifications. Ensure compatibility with existing PCB footprints and thermal management requirements. Confirm lead times and authenticity through authorized distributors only.
Selection Notes
Select this component when high-speed digital isolation is required within a cost-effective DIP package. Consider the CTR specifications and isolation voltage ratings relative to the system's noise immunity needs. Evaluate thermal performance if operating near maximum current limits.
Part Context
This part belongs to the legacy optocoupler portfolio originally developed by Fairchild Semiconductor, now managed by onsemi following acquisition. It serves as a standard solution for basic galvanic isolation tasks in established electronic designs across various industries.
Replacement Considerations
Direct pin-compatible replacements may include other single-channel NPN phototransistor optocouplers from major manufacturers. Verify CTR ranges, isolation voltages, and package dimensions before substitution to ensure circuit functionality remains intact.
