PS2841-4A-F3-AX Equivalent & Substitute Parts

Part Overview

The PS2841-4A-F3-AX is a 4-channel optoisolator with transistor output, providing 1500Vrms isolation. This component is classified as discontinued at DiGi Electronics, necessitating identification of active equivalent alternatives to maintain system availability and design continuity. The substitute parts listed are sourced from Renesas Electronics Corporation and maintain identical electrical and mechanical specifications, enabling direct replacement in existing designs.

Substiute Parts

PS2841-4A-F3-AX

CELIn Stock: 1580PS2841-4A-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 of the discontinued PS2841-4A-F3-AX is based on strict equivalence across all critical electrical and mechanical parameters. The following key parameters determine substitutability:

• Number of Channels: 4-channel configuration
• Voltage - Isolation: 1500Vrms
• Current Transfer Ratio Range: 100% to 400% @ 1mA
• Output Type: Transistor output
• Maximum Output Voltage: 70V
• Maximum Output Current per Channel: 20mA
• Package: 12-BSOP (0.173", 4.40mm Width)
• Rise / Fall Time: 20µs, 110µs
• Operating Temperature Range: -40°C to 100°C

The substitute parts PS2841-4A-F3-AX and PS2841-4B-F3-AX from Renesas Electronics Corporation match these parameters exactly, with the critical distinction being their active product status. Substitution is based on parametric equivalence rather than cost, performance optimization, or marginal improvements.

Parameter Comparison

Engineering Selection Recommendations

Both Renesas Electronics Corporation substitutes PS2841-4A-F3-AX and PS2841-4B-F3-AX are qualified alternatives to the discontinued CEL PS2841-4A-F3-AX. Selection between substitutes is based on the following factors:

Product Status: Both Renesas parts carry Active product status, ensuring long-term availability and manufacturer support. The original CEL component is discontinued at DiGi Electronics and is no longer supported for new orders.

Compliance: All three parts maintain ROHS3 compliance and are REACH unaffected, satisfying regulatory requirements for electronic components in commercial and industrial applications.

Availability: The Renesas PS2841-4A-F3-AX carries 1502 units in stock, while the PS2841-4B-F3-AX carries 1274 units, providing adequate inventory for production planning.

Packaging: Both substitutes are supplied in Tape & Reel (TR) format, suitable for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Are the Renesas PS2841-4A-F3-AX and PS2841-4B-F3-AX direct replacements for the discontinued CEL PS2841-4A-F3-AX? A: Both parts are parametric equivalents meeting all electrical and mechanical specifications of the original component. Pin configuration, package dimensions, and functional characteristics are identical, enabling direct board-level substitution without circuit modification.

Q: What determines the substitutability between PS2841-4A-F3-AX and PS2841-4B-F3-AX? A: Both parts are qualified substitutes based on matching electrical parameters across all critical specifications: 4-channel configuration, 1500Vrms isolation voltage, transistor output type, 70V maximum output voltage, and 20mA per-channel current rating. The designation difference (4A vs. 4B) does not affect functional equivalence.

Q: Are there any differences in packaging or handling between the original and substitute parts? A: Both Renesas substitutes are supplied in Tape & Reel (TR) format, whereas packaging information for the original CEL part was not specified. Both maintain MSL Level 1 (Unlimited) moisture sensitivity, requiring standard ESD and dry storage precautions. The 12-BSOP package dimensions (0.173", 4.40mm width) are identical.

Q: Do the substitute parts maintain the same operating temperature range? A: Both substitute parts operate across the identical temperature range of -40°C to 100°C as the original component, ensuring thermal compatibility with the original design.

Q: What is the difference between the part numbers PS2841-4A-F3-AX and PS2841-4B-F3-AX? A: Both parts share the base product number PS2841 and maintain parametric equivalence. The alphanumeric suffix variation does not introduce functional or electrical differences between these two optoisolators.