PS2805A-1-A Equivalent & Substitute Parts

Part Overview

The PS2805A-1-A is a 2500Vrms optoisolator with transistor output, designed for galvanic isolation in electronic circuits. This component features a single-channel configuration in a 4-SSOP surface mount package. The main part (CEL manufacturer) is discontinued at DiGi Electronics, necessitating identification of suitable equivalent alternatives for continued system support and new designs.

Substiute Parts

PS2805A-1-A

CELIn Stock: 1120PS2805A-1-A Datasheet

Current PartRFQ

PS2805A-1-A

Renesas Electronics CorporationIn Stock: 2932PS2805A-1-A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS2805A-1-A is based on strict matching of critical electrical and mechanical parameters. The substitute part PS2805A-1-A (Renesas Electronics Corporation) qualifies as a parametric equivalent because it maintains identical specifications across all key parameters:

• Isolation voltage: 2500Vrms
• Single-channel transistor output configuration
• Current transfer ratio range: 50% – 400% @ 5mA
• Maximum output voltage: 70V
• Maximum output current per channel: 30mA
• Input compatibility: AC, DC
• Vce saturation: 300mV maximum
• Operating temperature range: -55°C ~ 100°C
• Physical package and mounting: 4-SOIC, 4.40mm width, surface mount
• Regulatory compliance: ROHS3 Compliant, MSL 1

Parameter Comparison

Engineering Selection Recommendations

The PS2805A-1-A (Renesas Electronics Corporation) represents a direct parametric equivalent for the discontinued CEL variant. Both parts maintain identical electrical specifications and physical compatibility, ensuring drop-in replacement capability in existing circuit designs. The Renesas variant is classified as "Not For New Designs," indicating mature production status suitable for replacement and legacy system support rather than new development initiatives. Both variants meet ROHS3 compliance and REACH unaffected status, satisfying environmental regulatory requirements across standard manufacturing and distribution channels.

Frequently Asked Questions (FAQ)

Q: Can the Renesas PS2805A-1-A replace the CEL PS2805A-1-A directly? A: Yes. Both parts share identical electrical parameters, operating ranges, and physical packaging (4-SOIC, 4.40mm width). Direct substitution is electrically and mechanically compatible.

Q: What are the critical parameters determining substitution eligibility? A: Isolation voltage (2500Vrms), channel configuration (1 channel), output type (transistor), current transfer ratio range (50%–400% @ 5mA), maximum output specifications (70V, 30mA), and package format (4-SOIC, surface mount) must remain constant for functional equivalence.

Q: Why is the CEL variant discontinued? A: The CEL PS2805A-1-A is discontinued at DiGi Electronics. The Renesas equivalent maintains full parametric compatibility for system replacement and support applications.

Q: Are there compliance considerations for substitution? A: Both variants are ROHS3 compliant and REACH unaffected, meeting standard environmental and regulatory requirements for component procurement and assembly.

Q: How do the rise and fall times compare? A: Both variants specify identical rise and fall times of 5µs and 7µs, respectively, ensuring switching behavior consistency in circuit operation.

Q: Is the 4-SSOP packaging the same across both variants? A: Yes. Both use 4-SOIC (0.173", 4.40mm Width) package format with surface mount compatibility, enabling identical PCB layout and assembly processes.