PS2841-4A-AX Equivalent & Substitute Parts

Part Overview

The PS2841-4A-AX is a 4-channel optoisolator with transistor output, rated for 1500Vrms isolation voltage. This component is designed for applications requiring galvanic isolation between input and output circuits with DC input control and transistor switching capability.

The PS2841-4A-AX manufactured by CEL is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and maintenance applications.

Substiute Parts

PS2841-4A-AX
CELIn Stock: 1013PS2841-4A-AX Datasheet
PS2841-4A-AX
Current Part
PS2841-4A-AX
Renesas Electronics CorporationIn Stock: 2594PS2841-4A-AX Datasheet
PS2841-4A-AX
Parametric Equivalent

Key Parameters

Parameter Value
Number of Channels 4
Voltage - Isolation 1500Vrms
Current Transfer Ratio (Min) 100% @ 1mA
Current Transfer Ratio (Max) 400% @ 1mA
Rise / Fall Time (Typ) 20µs, 110µs
Input Type DC
Output Type Transistor
Voltage - Output (Max) 70V
Current - Output / Channel 20mA
Voltage - Forward (Vf) (Typ) 1.1V
Current - DC Forward (If) (Max) 20mA
Vce Saturation (Max) 300mV
Operating Temperature -40°C ~ 100°C
Mounting Type Surface Mount
Package / Case 12-BSOP (0.173", 4.40mm Width)
Supplier Device Package 12-SSOP
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the PS2841-4A-AX are identified based on strict parametric equivalence. The following criteria determine substitution eligibility:

Critical Parameters for Substitution:

  • Number of Channels: 4
  • Voltage - Isolation: 1500Vrms
  • Current Transfer Ratio: 100% (Min) @ 1mA and 400% (Max) @ 1mA
  • Output Type: Transistor
  • Voltage - Output (Max): 70V
  • Current - Output / Channel: 20mA
  • Package / Case: 12-BSOP (0.173", 4.40mm Width)
  • Operating Temperature Range: -40°C ~ 100°C

All substitute parts must match these parameters exactly to ensure functional and mechanical compatibility within the original circuit design.

Parameter Comparison

Parameter PS2841-4A-AX (CEL) PS2841-4A-AX (Renesas Electronics)
Manufacturer CEL Renesas Electronics Corporation
Number of Channels 4 4
Voltage - Isolation 1500Vrms 1500Vrms
Current Transfer Ratio (Min) 100% @ 1mA 100% @ 1mA
Current Transfer Ratio (Max) 400% @ 1mA 400% @ 1mA
Rise / Fall Time (Typ) 20µs, 110µs 20µs, 110µs
Input Type DC DC
Output Type Transistor Transistor
Voltage - Output (Max) 70V 70V
Current - Output / Channel 20mA 20mA
Voltage - Forward (Vf) (Typ) 1.1V 1.1V
Current - DC Forward (If) (Max) 20mA 20mA
Vce Saturation (Max) 300mV 300mV
Operating Temperature -40°C ~ 100°C -40°C ~ 100°C
Mounting Type Surface Mount Surface Mount
Package / Case 12-BSOP (0.173", 4.40mm Width) 12-BSOP (0.173", 4.40mm Width)
Supplier Device Package 12-SSOP 12-SSOP
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited)
Product Status Discontinued at DiGi Electronics Not For New Designs

Engineering Selection Recommendations

The PS2841-4A-AX manufactured by Renesas Electronics Corporation is a parametric equivalent to the CEL PS2841-4A-AX. Both parts share identical electrical specifications, isolation voltage ratings, channel configuration, and package dimensions.

Compliance Status:

  • Both versions are ROHS3 Compliant
  • Both versions are REACH Unaffected
  • Both versions carry ECCN classification EAR99
  • Both versions have MSL rating of 1 (Unlimited)

The Renesas Electronics version is currently available with 2553 pieces in stock, compared to the CEL version which is discontinued. The Renesas part carries a "Not For New Designs" status, indicating it remains available for replacement and maintenance applications.

Selection between these equivalent parts should be based on availability, supply chain requirements, and procurement lead times. Both parts are electrically and mechanically interchangeable within the specified operating parameters.

Frequently Asked Questions (FAQ)

Q: Can the Renesas Electronics PS2841-4A-AX replace the CEL PS2841-4A-AX in existing designs?

A: Yes. Both parts are parametrically equivalent across all critical electrical and mechanical specifications, including isolation voltage, channel count, output current rating, package dimensions, and operating temperature range. Direct substitution is supported.

Q: Are there any differences in the package or pinout between these parts?

A: No. Both parts use the identical 12-BSOP package with 0.173" width and 4.40mm dimensions. Pinout and mechanical compatibility are identical.

Q: What is the significance of the "Not For New Designs" status on the Renesas part?

A: This status indicates the part is available for replacement and maintenance of existing applications but is not recommended for new product development. For existing designs currently using the CEL version, the Renesas equivalent remains suitable for production and field replacement.

Q: Are both parts RoHS compliant?

A: Yes. Both the CEL and Renesas Electronics versions are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: What are the key parameters that must match for substitution?

A: Critical matching parameters include: 4-channel configuration, 1500Vrms isolation voltage, 100-400% current transfer ratio range, 70V maximum output voltage, 20mA per-channel output current, 12-BSOP package, and -40°C to 100°C operating temperature range.

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