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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 4N253SD is a single-channel transistor output optocoupler housed in a surface-mount SMD-DIP-6 package. It features an NPN phototransistor with a base terminal for enhanced switching control and stability. The device provides high isolation voltage of 5300 Vrms between input and output circuits. Key electrical parameters include a maximum forward current of 100 mA, a typical forward voltage of 1.5 V, and a collector-emitter saturation voltage of 500 mV. It operates within a temperature range of -55°C to +100°C and has a power dissipation rating of 250 mW.
Feature Summary
- Integrated base terminal on the phototransistor output for improved switching speed and noise immunity
- High isolation capability rated at 5300 Vrms for robust circuit protection
- Surface-mount SMD-DIP-6 form factor designed for automated assembly processes
Applications
- Industrial automation signal isolation
- Solid-state relay driver circuits
- Microcontroller interface isolation
Procurement Notes
Verify component authenticity through official manufacturer channels or authorized distributors. Confirm lot traceability and RoHS compliance status prior to procurement. Ensure storage conditions meet specified humidity and temperature limits to maintain reliability. Review the latest datasheet for any engineering change notices (ECNs) that may affect pinout or electrical characteristics before finalizing supply agreements.
Selection Notes
Select this component when surface-mount assembly is required alongside high-voltage isolation needs. The integrated base allows for faster turn-off times compared to standard phototransistors without base connections. Consider the 5300 Vrms rating for applications requiring strong galvanic separation. Evaluate the SMD-DIP-6 footprint compatibility with existing PCB layouts during the design phase.
Part Context
This part belongs to the 4N25 series of optocouplers from onsemi, known for general-purpose isolation applications. The 4N253SD variant specifically adapts the traditional DIP-6 functionality into a surface-mount configuration. It serves as a modern replacement for legacy through-hole versions in compact electronic designs.
Replacement Considerations
Direct substitutes include other 4N25 series variants such as the 4N25SR2VM. Verify pinout compatibility and isolation voltage ratings when cross-referencing alternative manufacturers' parts.
