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Product Detailed Parameters
- Description：OPTOISO 2.5KV 1CH TRANS 4-VSSOP
- Series：NEPOC
- Mfr：Renesas Electronics Corporation
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：2500Vrms
- Current Transfer Ratio (Min)：80% @ 5mA
- Current Transfer Ratio (Max)：600% @ 5mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：3µs, 5µs
- Input Type：AC, DC
- Output Type：Transistor
- Voltage - Output (Max)：80V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.1V
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：300mV
- Operating Temperature：-55°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：4-SOIC (0.173", 4.40mm Width)
- Supplier Device Package：4-VSSOP
- Grade：-
- Qualification：-
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Overview
The PS2805-1-L-A is a single-channel transistor output optocoupler manufactured by Renesas Electronics. It features an NPN phototransistor output and provides high isolation with a rated insulation voltage of 2500 Vrms. The device is designed for AC input applications and utilizes an SSOP-4 surface-mount package. Key electrical specifications include a maximum collector-emitter voltage of 70 V, a maximum forward current of 30 mA, and a power dissipation rating of 60 mW. The component operates within a temperature range of -55°C to +100°C.
Feature Summary
- Provides galvanic isolation between input and output circuits using a single channel configuration.
- Features an NPN phototransistor output suitable for digital signal transmission.
- Designed specifically for high-isolation AC input applications.
Applications
- AC input interface circuits
- Digital signal isolation
- General-purpose optocoupler applications
Procurement Notes
This component is officially listed as End-of-Life (EOL) by the manufacturer. Distribution channels indicate that Mouser does not currently stock this part in many regions. Verification of availability through authorized distributors or secondary markets is essential before procurement planning. Designers should confirm the discontinuation status directly with Renesas Electronics to ensure supply chain stability.
Selection Notes
Engineers selecting this part must account for its discontinued status, which limits long-term supply availability. The PS2805-1-L-A offers standard isolation performance but lacks the higher CTR ranges found in newer series like the PS2801. Selection should be restricted to maintenance or legacy system repairs where specific form-factor compatibility with the SSOP-4 package is required. New designs should consider alternative active components from the same manufacturer.
Part Context
The PS2805-1-L-A belongs to the PS2805 series of transistor output optocouplers from Renesas Electronics. This series is characterized by its compact SSOP packaging and focus on AC input compatibility. Unlike multi-channel variants such as the PS2805C-4, this specific model provides a single isolated channel, making it suitable for simpler isolation tasks requiring minimal board space.
Replacement Considerations
Public documentation confirms the PS2805A-1-A as a related variant within the same family, though it carries an NRND (Not Recommended for New Designs) status rather than being fully active. No other direct substitute part numbers are explicitly confirmed in the provided source material.
