PS2503-2-A

Description：OPTOISOLATOR 5KV 2CH TRANS 8-DIP
Series：NEPOC
Mfr：CEL
Package：Tube

SKU:57ec0ae1d13d Category: Transistor, Photovoltaic Output Optoisolators Brand: CEL

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Product introduction

Product Detailed Parameters

Description：OPTOISOLATOR 5KV 2CH TRANS 8-DIP
Series：NEPOC
Mfr：CEL
Package：Tube
Number of Channels：2
Voltage - Isolation：5000Vrms
Current Transfer Ratio (Min)：100% @ 1mA
Current Transfer Ratio (Max)：400% @ 1mA
Turn On / Turn Off Time (Typ)：-
Rise / Fall Time (Typ)：20µs, 30µs
Input Type：DC
Output Type：Transistor
Voltage - Output (Max)：40V
Current - Output / Channel：30mA
Voltage - Forward (Vf) (Typ)：1.1V
Current - DC Forward (If) (Max)：80 mA
Vce Saturation (Max)：250mV
Operating Temperature：-55°C ~ 100°C
Mounting Type：Through Hole
Package / Case：8-DIP (0.300", 7.62mm)
Supplier Device Package：8-DIP
Grade：-
Qualification：-

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PS2503-2-A

Overview

The CEL PS2503-2-A is a dual-channel transistor output optocoupler designed for high isolation applications. It features an NPN phototransistor output with a maximum collector-emitter voltage of 40 V and a collector current of 30 mA. The device provides 5000 Vrms insulation voltage between input and output circuits. Key electrical parameters include a forward current of 80 mA, a forward voltage of 1.3 V, and a power dissipation of 150 mW. The unit operates within a temperature range of -55°C to +100°C and is housed in an 8-pin DIP package.

Feature Summary

Dual-channel configuration providing independent signal isolation paths
High insulation voltage capability for safety-critical circuit separation
NPN phototransistor output structure for standard switching applications

Applications

AC mains input detection circuits
Industrial control system isolation
Power supply feedback loops

Procurement Notes

Verify component authenticity through authorized channels due to discontinuation status. Confirm RoHS compliance details as specifications may vary by production batch. Validate package integrity upon receipt to ensure pin alignment matches the 8-DIP footprint. Cross-reference datasheet revisions to confirm parameter consistency before finalizing design integration.

Selection Notes

Select this component when dual-channel isolation is required within a single package footprint. Ensure the 40 V collector-emitter voltage rating exceeds the load requirements. Verify that the 80 mA forward current capability aligns with the driving circuit constraints. Consider the thermal management requirements given the 150 mW power dissipation limit in enclosed environments.

Part Context

This part belongs to the NEPOC family of optocouplers from CEL. It serves as a discrete solution for galvanic isolation in digital and analog signal transmission. The device replaces older NEC-branded equivalents in legacy designs. It is distinct from single-channel variants like the PS2501 series.