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Product Detailed Parameters
- Description：OPTOISO 5.3KV DARL W/BASE 6-SMD
- Series：4N33
- Mfr：Isocom Components 2004 LTD
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5300Vrms
- Current Transfer Ratio (Min)：-
- Current Transfer Ratio (Max)：-
- Turn On / Turn Off Time (Typ)：5µs, 100µs (Max)
- Rise / Fall Time (Typ)：-
- Input Type：DC
- Output Type：Darlington with Base
- Voltage - Output (Max)：30V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：80 mA
- Vce Saturation (Max)：1V
- Operating Temperature：-55°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：6-SMD, Gull Wing
- Supplier Device Package：6-SMD
- Grade：-
- Qualification：-
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Overview
The 4N33SM is a single-channel optocoupler manufactured by Isocom Components 2004 LTD. It integrates an infrared emitting diode with an NPN silicon photodarlington output transistor. The device provides high isolation voltage of 5300Vrms and operates within a temperature range of -55°C to +125°C. Key electrical parameters include a maximum forward current of 60 mA, typical rise time of 2µs, and typical fall time of 11µs. Current transfer ratio ranges from 40% minimum to 80% maximum.
Feature Summary
- Integrates an infrared LED with an NPN silicon photodarlington for high sensitivity to low input drive currents
- Provides robust electrical isolation suitable for safety-critical applications
- Designed to meet or exceed JEDEC registered specifications
Applications
- Industrial control systems
- Power supply protection circuits
- Smart metering applications
Procurement Notes
Verify the specific suffix 'SM' indicates surface mount packaging when sourcing. Confirm that the component meets required regulatory approvals such as UL or VDE if used in certified equipment. Ensure the operating temperature range aligns with the system environment. Check datasheet revisions for any updates to mechanical dimensions or electrical limits before finalizing procurement.
Selection Notes
Select this component for applications requiring high isolation voltage and fast switching speeds. The photodarlington output offers higher gain compared to standard phototransistors. Consider the package type compatibility with PCB layout requirements. Evaluate the current transfer ratio variations across temperature ranges for circuit stability.
Part Context
Isocom Components 2004 LTD specializes in infrared optoelectronic devices and serves as a replacement source for discontinued industry-standard optocouplers. The company focuses on providing high-reliability components with flexible manufacturing capabilities. This part fits within their portfolio of general-purpose optoisolators designed for commercial and industrial markets.
Replacement Considerations
This component may serve as a direct replacement for other 4N33 series parts from different manufacturers. Verify pinout compatibility and package dimensions before substitution. Ensure equivalent isolation voltage and current transfer ratio specifications are met.
