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Product Detailed Parameters
- Description：OPTOISO 5.3KV 1CH TRANS W/BASE
- Series：4N28
- Mfr：Isocom Components 2004 LTD
- Package：Tape & Reel (TR)
- Number of Channels：1
- Voltage - Isolation：5300Vrms
- Current Transfer Ratio (Min)：10% @ 10mA
- Current Transfer Ratio (Max)：-
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：2µs, 2µs
- Input Type：DC
- Output Type：Transistor with Base
- Voltage - Output (Max)：30V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：60 mA
- Vce Saturation (Max)：500mV
- Operating Temperature：-55°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：6-SMD, Gull Wing
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The 4N28XSMT&R is a surface-mount optocoupler manufactured by Isocom Components 2004 LTD. It features a single channel with a phototransistor output and includes a base connection for improved switching performance. The device provides an isolation voltage of 5300Vrms and supports a maximum collector current of 60 mA. Packaged in a 6-pin surface mount DIP, it is designed for applications requiring reliable signal transmission across isolated circuits.
Feature Summary
- Single-channel configuration with phototransistor output
- Integrated base terminal for enhanced switching speed
- High isolation voltage rating of 5300Vrms
- Surface-mount packaging for automated assembly
Applications
- Signal isolation in industrial control systems
- Interface between microcontrollers and high-voltage loads
- Data communication line isolation
- Power supply feedback loops
Procurement Notes
Verify the exact package type and pinout against the official datasheet before integration. Confirm that the surface-mount variant meets your PCB footprint requirements. Ensure the isolation voltage rating aligns with your system's safety standards. Check for any specific handling instructions regarding electrostatic discharge during installation.
Selection Notes
Select this component when a single-channel isolation solution with a base-driven phototransistor is required. The surface-mount format suits designs prioritizing compactness and automated manufacturing. Consider the 5300Vrms isolation capability for robust noise immunity in electrically noisy environments compared to lower-rated alternatives.
Part Context
Isocom Components 2004 LTD specializes in infrared optoelectronic devices, including optocouplers and optoswitches. The 4N28XSMT&R belongs to their family of high-performance surface-mount isolators. This part number specifically denotes the tape-and-reel version of the 4N28X series, facilitating high-volume production integration.
Replacement Considerations
Direct substitutes include the 4N28XSM (tube) and 4N28XSMT&R from Isocom. Cross-brand replacements like the PC123 or ILQ2 may require schematic review due to potential differences in pinout or electrical characteristics.
