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Product Detailed Parameters
- Description：OPTOISO 5.3KV TRANS W/BASE 6-SMD
- Series：-
- Mfr：onsemi
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5300Vrms
- 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)：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 4N27S is a single-channel, surface-mount transistor output optocoupler housed in a 6-pin SMD-DIP package. It features an NPN phototransistor with a base terminal for improved switching speed and stability. Key electrical parameters include a maximum collector-emitter voltage of 30 V, a forward current rating of 100 mA, and an isolation voltage of 5300 Vrms. The device operates within a temperature range of -55°C to +100°C and has a power dissipation capacity of 250 mW.
Feature Summary
- Integrates an NPN phototransistor with a dedicated base pin to enhance switching performance and reduce storage time compared to standard variants without base access.
Applications
- General-purpose signal isolation in industrial control systems
- Interface between microcontrollers and high-voltage circuits
- Power supply feedback loops requiring galvanic isolation
Procurement Notes
Verify component authenticity through authorized distributors as the 4N27S is listed as obsolete by onsemi. Confirm that the specific revision matches legacy design requirements. Check for RoHS compliance status in official documentation before integration into new production runs.
Selection Notes
Select this component when a surface-mount footprint is required for applications traditionally using DIP-6 optocouplers. Ensure the circuit design accommodates the 30 V collector-emitter voltage limit and utilizes the base terminal if faster turn-off times are necessary for the specific application timing constraints.
Part Context
The 4N27S belongs to the general-purpose phototransistor optocoupler family from onsemi. It serves as the surface-mount equivalent to through-hole devices like the 4N27, maintaining similar electrical characteristics while adapting to automated assembly processes. This part is widely recognized in legacy designs transitioning to or utilizing SMD packaging.
Replacement Considerations
Direct substitutes include the 4N27SM. Verify pinout compatibility and electrical specifications against the original design requirements before substitution.
