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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH TRANS 4-SMD
- Series：NEPOC
- Mfr：CEL
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：100% @ 5mA
- Current Transfer Ratio (Max)：200% @ 5mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：3µs, 5µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：70V
- Current - Output / Channel：30mA
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：30 mA
- Vce Saturation (Max)：300mV
- Operating Temperature：-55°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：4-SMD, Gull Wing
- Supplier Device Package：4-SMD
- Grade：-
- Qualification：-
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Overview
The PS2501AL-1-Q-A is a discontinued transistor output optoisolator manufactured by CEL. It integrates a GaAs infrared LED and an NPN silicon phototransistor within a single package. The device provides electrical isolation with a rated insulation voltage of 5000 Vrms. It features a single channel configuration designed for signal transmission across isolated circuits. The component supports through-hole or surface-mount mounting depending on the specific suffix variant, though this specific part number indicates a specialized qualification grade.
Feature Summary
- Integrates a GaAs light emitting diode with an NPN silicon phototransistor for high-speed signal transfer
- Provides robust electrical isolation between input and output circuits
- Designed for applications requiring reliable digital signal transmission across isolated boundaries
Applications
- Industrial control systems requiring galvanic isolation
- Power supply feedback loops for voltage regulation
- Microcontroller interface circuits for noise immunity
Procurement Notes
This component is officially discontinued and no longer carried by major distributors such as DigiKey. Verification of current availability requires direct consultation with authorized CEL suppliers or secondary market vendors. Buyers must confirm end-of-life status and ensure that any sourced units are genuine and meet original specifications before integration into designs.
Selection Notes
Engineers should evaluate alternative active components from the PS2501 series or comparable isolators when designing new hardware. Selection criteria should focus on matching isolation voltage ratings, current transfer ratio requirements, and package compatibility. Verify that replacement parts maintain equivalent electrical characteristics to ensure system reliability and compliance with existing design constraints.
Part Context
The PS2501AL-1-Q-A belongs to the broader PS2501 family of optocouplers produced by CEL. This series is characterized by its use of GaAs LEDs and silicon phototransistors to achieve efficient optical coupling. The 'Q' suffix typically denotes automotive or qualified grade variants, although specific qualification details require reference to the official datasheet. The product line emphasizes durability and signal integrity in industrial environments.
Replacement Considerations
Official substitute part numbers are not explicitly confirmed in the provided source material. Engineers should consult manufacturer cross-reference guides or datasheets for compatible alternatives within the PS2501 series or similar transistor-output optocouplers.
