PS2841-4B-F3-AX Optoisolator - Equivalent & Substitute Parts

Part Overview

The PS2841-4B-F3-AX is a 4-channel optoisolator with transistor output, designed for high-voltage isolation applications requiring 1500Vrms isolation rating. This component is classified as discontinued at DiGi Electronics, creating a need to identify functionally equivalent alternatives for ongoing design support and procurement. The optoisolator operates with DC input type and provides transistor output capability suitable for digital signal isolation in industrial and power management applications.

Substiute Parts

PS2841-4B-F3-AX

CELIn Stock: 1358PS2841-4B-F3-AX Datasheet

Current PartRFQ

PS2841-4A-F3-AX

Renesas Electronics CorporationIn Stock: 1595PS2841-4A-F3-AX Datasheet

Parametric EquivalentRFQ

PS2841-4B-F3-AX

Renesas Electronics CorporationIn Stock: 1317PS2841-4B-F3-AX Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PS2841-4B-F3-AX is determined by strict equivalence across critical electrical and mechanical parameters:

Critical Substitution Parameters:

• Number of Channels: 4
• Voltage - Isolation: 1500Vrms
• Current Transfer Ratio Range: 100% @ 1mA (Min) to 400% @ 1mA (Max)
• Output Type: Transistor
• Voltage - Output (Max): 70V
• Current - Output / Channel: 20mA
• Vce Saturation (Max): 300mV
• Package / Case: 12-BSOP (0.173", 4.40mm Width)
• Mounting Type: Surface Mount

Two substitute parts meet these electrical and mechanical equivalence requirements: PS2841-4A-F3-AX and PS2841-4B-F3-AX (Renesas Electronics Corporation variant). Both components maintain identical parametric specifications across all critical isolation, output, and packaging criteria.

Parameter Comparison

Engineering Selection Recommendations

PS2841-4B-F3-AX (Renesas Electronics Corporation): Recommended primary alternative. Maintains identical parametric specifications to the original part and carries active product status. RoHS3 compliance and MSL Level 1 certification ensure compatibility with modern manufacturing processes. Tape & Reel packaging supports high-volume procurement requirements.

PS2841-4A-F3-AX (Renesas Electronics Corporation): Qualified secondary alternative. Provides complete parametric equivalence with identical isolation, output, and thermal specifications. Active product status and RoHS3 compliance support long-term design continuity. Tape & Reel packaging format available.

Both substitute parts from Renesas Electronics Corporation address the discontinuation of the original CEL component while maintaining all critical electrical and mechanical parameters required for direct board-level substitution.

Frequently Asked Questions (FAQ)

Q: Can PS2841-4A-F3-AX and PS2841-4B-F3-AX be used interchangeably with the original PS2841-4B-F3-AX?

A: Yes. All three part numbers maintain identical specifications across voltage isolation, current transfer ratio, output voltage/current, and package dimensions. The 12-BSOP surface mount package is identical across all variants, supporting pin-to-pin compatibility.

Q: What is the significance of the "-4A" and "-4B" designations in the part number?

A: Based on the provided specifications, both designations represent functionally equivalent 4-channel optoisolators meeting the same isolation and output parameter requirements. The designations do not indicate performance differences relevant to substitution.

Q: Are the Renesas Electronics variants suitable for high-isolation applications?

A: Yes. Both Renesas parts specify 1500Vrms isolation rating with identical output transistor specifications (70V max, 20mA per channel, 300mV max saturation voltage), supporting applications requiring high voltage barrier protection.

Q: What packaging formats are available for the substitute parts?

A: Renesas Electronics supplies both PS2841-4A-F3-AX and PS2841-4B-F3-AX in Tape & Reel (TR) format, standard for automated assembly processes.

Q: Do the substitute parts maintain the same operating temperature range?

A: Yes. All parts support -40°C to 100°C operating range, ensuring thermal equivalence for standard industrial applications.