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Product Detailed Parameters
- Description：OPTOISOLATOR 1.5KV 4CH TRANS
- Series：NEPOC
- Mfr：Renesas Electronics Corporation
- Package：Tape & Reel (TR),Cut Tape (CT)
- Number of Channels：4
- Voltage - Isolation：1500Vrms
- Current Transfer Ratio (Min)：100% @ 1mA
- Current Transfer Ratio (Max)：400% @ 1mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：20µs, 110µs
- Input Type：AC, DC
- Output Type：Transistor
- Voltage - Output (Max)：70V
- Current - Output / Channel：20mA
- Voltage - Forward (Vf) (Typ)：1.1V
- Current - DC Forward (If) (Max)：20 mA
- Vce Saturation (Max)：300mV
- Operating Temperature：-40°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：12-SOP (0.173", 4.40mm Width)
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The PS2845-4A-F3-AX is a four-channel optocoupler manufactured by Renesas Electronics Corporation. It integrates GaAs light-emitting diodes with NPN silicon phototransistors to provide electrical isolation. The device features a 1500Vrms isolation voltage rating and operates within a temperature range of -55°C to +100°C. It utilizes a 12-pin SSOP package with a 4.40mm width, classified as an ultra-shrink small outline package. The minimum current transfer ratio is specified at 100% when tested at a forward current of 1mA.
Feature Summary
- Contains four independent channels for multi-signal isolation
- Integrates GaAs LEDs with NPN silicon phototransistors
- Provides high-voltage electrical isolation between input and output circuits
Applications
- Industrial control systems requiring signal isolation
- Measurement equipment needing circuit separation
- Communication interfaces demanding noise immunity
Procurement Notes
Verify the specific suffix F3-AX against official Renesas documentation to confirm tape-and-reel packaging specifications. Ensure the component matches the 12-pin SSOP physical dimensions. Confirm that the 1500Vrms isolation rating aligns with your system safety requirements before procurement.
Selection Notes
Select this component when multiple isolated channels are required in a compact footprint. The 100% CTR at low drive currents makes it suitable for efficient signal transmission. Verify that the 12-pin SSOP package fits the available PCB space and thermal constraints of the design.
Part Context
This part belongs to the PS2845 series of ultra-shrink SOP photocouplers from Renesas. The series is designed for applications where board space is limited but high channel density is necessary. The PS2845-4A variant specifically offers four channels within a single 12-pin package.
Replacement Considerations
Check for direct substitutes such as the PS2845-4-X variants or other quad-channel optocouplers in 12-pin SSOP packages. Ensure replacement parts maintain equivalent isolation voltage and pinout compatibility.
