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Product Detailed Parameters
- Description：OPTOISO 5.3KV TRANS W/BASE 6-SMD
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR)
- Number of Channels：1
- Voltage - Isolation：5300Vrms
- Current Transfer Ratio (Min)：20% @ 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)：100 mA
- Vce Saturation (Max)：500mV
- Operating Temperature：-55°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：6-SMD, Gull Wing
- Supplier Device Package：6-SMD
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Overview
The onsemi 4N26SD is a single-channel transistor output optocoupler featuring an NPN phototransistor with base access. It provides high isolation voltage of 5300 Vrms and operates within a temperature range of -55°C to +100°C. The device supports a maximum forward current of 100 mA with a typical forward voltage of 1.5 V. Key electrical parameters include a collector-emitter saturation voltage of 500 mV, reverse voltage of 6 V, and power dissipation of 250 mW. It is housed in a surface-mount SMD-DIP-6 package.
Feature Summary
- High isolation voltage capability for safe signal transmission between circuits
- Transistor output with base terminal for enhanced switching control
- Wide operating temperature range suitable for industrial environments
Applications
- Isolated logic gate control systems
- Industrial process control signal interfacing
- Power supply feedback loop isolation
Procurement Notes
Verify the specific suffix 'SD' corresponds to the surface-mount SMD-DIP-6 package variant rather than the through-hole DIP version. Confirm RoHS compliance status and check for recent Process Change Notifications (PCN) regarding assembly or material updates. Ensure the supplier provides official datasheets matching the exact part number to avoid confusion with similar 4N26 series components.
Selection Notes
Select this component when surface-mount assembly is required for high-voltage isolation applications. Compare the 5300 Vrms isolation rating against system safety requirements. Consider the NPN phototransistor output characteristics and base accessibility for driving capabilities. Evaluate thermal management needs given the 250 mW power dissipation limit in the SMD package.
Part Context
The 4N26SD belongs to the broader 4N26 family of optocouplers manufactured by onsemi. While sharing functional similarities with other members like the 4N26TVM, it differs primarily in its surface-mount packaging and potentially higher isolation ratings. This variant addresses modern PCB layout constraints while maintaining robust isolation performance for digital and analog signal transfer.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs before considering alternative models from other manufacturers.
