PS2933-1-AX Equivalent & Substitute Parts

Part Overview

The PS2933-1-AX is a Darlington output optoisolator with 2500Vrms isolation rating, designed for single-channel galvanic isolation applications. The original part (Manufacturer: CEL) is discontinued at DiGi Electronics, necessitating identification of equivalent substitutes for design continuity and component sourcing. Renesas Electronics Corporation offers functionally equivalent alternatives that maintain the same electrical and mechanical specifications, enabling direct substitution in existing designs.

Substiute Parts

PS2933-1-AX

CELIn Stock: 881PS2933-1-AX Datasheet

Current PartRFQ

PS2933-1-AX

Renesas Electronics CorporationIn Stock: 1544PS2933-1-AX Datasheet

Parametric EquivalentRFQ

PS2933-1-V-AX

Renesas Electronics CorporationIn Stock: 2846PS2933-1-V-AX Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PS2933-1-AX is determined by strict equivalence across the following electrical and mechanical parameters: isolation voltage (2500Vrms), number of channels (1), output type (Darlington), current transfer ratio range (400% to 4500% @ 1mA), maximum output voltage (350V), maximum output current per channel (60mA), input type (DC), operating temperature range (-55°C to 100°C), and package configuration (4-SMD, Flat Leads / 4-Mini-Flat).

Both substitute parts identified maintain these specifications without deviation. Packaging format (Strip) and product status (Active) differ from the original, but these attributes do not affect functional substitutability in circuit applications. Compliance certifications (RoHS3, ECCN, HTSUS) remain identical across all variants.

Parameter Comparison

Engineering Selection Recommendations

Both Renesas alternatives (PS2933-1-AX and PS2933-1-V-AX) provide direct functional substitution for the discontinued CEL part. The Renesas PS2933-1-AX maintains the same series designation (NEPOC) as the original and carries Active product status with 1462 units in stock, establishing immediate component availability. The PS2933-1-V-AX variant, also Active with 2771 units in stock, meets identical electrical and mechanical specifications and carries the same regulatory compliance (ROHS3 Compliant, REACH Unaffected, EAR99 ECCN classification).

Selection between the two Renesas options depends on procurement logistics and supply chain requirements, as electrical performance and circuit compatibility are equivalent. Both parts support direct board-level substitution without design modification.

Frequently Asked Questions (FAQ)

Q: Can the Renesas PS2933-1-AX or PS2933-1-V-AX directly replace the discontinued CEL PS2933-1-AX?

A: Both Renesas variants provide direct functional replacement. All critical electrical parameters (isolation voltage, current transfer ratio, output voltage/current ratings, operating temperature range) and mechanical specifications (4-Mini-Flat package, surface mount configuration) are identical. No circuit design changes are required.

Q: What are the key differences between the two Renesas substitutes?

A: The PS2933-1-AX and PS2933-1-V-AX differ only in series designation and base product number classification. Both maintain identical electrical specifications and 4-SMD, Flat Leads packaging. The selection between them is determined by supplier availability and internal design documentation requirements.

Q: Are there any thermal or environmental considerations when substituting parts?

A: Both Renesas substitutes maintain the original operating temperature range (-55°C to 100°C) and Moisture Sensitivity Level 1 (Unlimited) classification. Environmental performance in existing thermal designs remains unchanged. Board layout and thermal management strategies designed for the original part remain applicable.

Q: How do the current transfer ratios affect circuit performance?

A: The current transfer ratio range (400% to 4500% @ 1mA) is identical across all three parts. This parameter determines input-to-output current scaling and remains within design specifications for applications engineered around the original PS2933-1-AX. Input drive current requirements and output sink/source capabilities are preserved.

Q: What is the significance of the 4-Mini-Flat package designation?

A: The 4-Mini-Flat package specifies the physical footprint and lead configuration for surface mount assembly. Both Renesas substitutes use the identical 4-SMD, Flat Leads package, enabling direct placement on existing printed circuit boards without footprint modification or pick-and-place equipment reprogramming.