PS2503-1-A

$0.49

Description：OPTOISOLATOR 5KV 1CH TRANS 4-DIP
Series：NEPOC
Mfr：CEL
Package：Tube

SKU:fdb3c95a9c0a Category: Transistor, Photovoltaic Output Optoisolators Brand: CEL

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Product introduction

Product Detailed Parameters

Description：OPTOISOLATOR 5KV 1CH TRANS 4-DIP
Series：NEPOC
Mfr：CEL
Package：Tube
Number of Channels：1
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：4-DIP (0.300", 7.62mm)
Supplier Device Package：4-DIP
Grade：-
Qualification：-

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PS2503-1-A

Overview

The PS2503-1-A is a single-channel transistor output optocoupler manufactured by CEL. It features an NPN phototransistor output and is housed in a DIP-4 package for through-hole mounting. The device provides 5000 Vrms insulation voltage between input and output. Key electrical parameters include a maximum collector-emitter voltage of 70 V, a maximum collector current of 30 mA, and a forward current of 30 mA. The typical current transfer ratio is 80%. Operating temperatures range from -55°C to +100°C with a power dissipation of 150 mW.

Feature Summary

Provides high-voltage isolation via 5000 Vrms dielectric barrier
Utilizes NPN phototransistor output stage for signal switching
Designed for through-hole integration in standard DIP-4 footprint

Applications

General-purpose digital signal isolation
Microcontroller interface circuits
Power supply feedback loops

Procurement Notes

Verify component authenticity due to obsolete lifecycle status. Confirm datasheet revision matches design requirements. Check for RoHS compliance documentation as specified in official records. Validate pinout compatibility with existing PCB layouts before procurement. Ensure storage conditions meet manufacturer specifications for long-term reliability.

Selection Notes

Select this component when high isolation voltage is required in a compact four-pin package. Consider the 30 mA collector current limit for load driving capabilities. Evaluate the 80% CTR for logic level compatibility. Verify thermal management needs within the -55°C to +100°C operating range. Compare against newer alternatives if lead time or availability is critical for production schedules.

Part Context

This part belongs to the CEL PS2503 series of low-input current, high-speed switching multi photocouplers. The series is designed for applications requiring reliable galvanic isolation. The PS2503-1-A specifically denotes the single-channel variant with NPN output configuration. It represents a legacy product line from California Eastern Laboratories.