PS2561L2-1 Equivalent & Substitute Parts

Part Overview

The PS2561L2-1 is a 5000Vrms isolation optoisolator with transistor output, manufactured by CEL in 4-SMD Gull Wing surface mount package. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives from current product lines. The isolation voltage, channel count, output characteristics, and thermal operating range determine compatibility for direct substitution.

Substiute Parts

PS2561L2-1

CELIn Stock: 12827PS2561L2-1 Datasheet

Current PartRFQ

PS2561L-1-F3-A

Renesas Electronics CorporationIn Stock: 4501PS2561L-1-F3-A Datasheet

DirectRFQ

PS2561L-1-V-F3-A

Renesas Electronics CorporationIn Stock: 25129PS2561L-1-V-F3-A Datasheet

DirectRFQ

PS2561L-1-A

Renesas Electronics CorporationIn Stock: 2375PS2561L-1-A Datasheet

Parametric EquivalentRFQ

PS2561L-1-V-A

Renesas Electronics CorporationIn Stock: 3273PS2561L-1-V-A Datasheet

Parametric EquivalentRFQ

PS2581L2-A

Renesas Electronics CorporationIn Stock: 8042PS2581L2-A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the PS2561L2-1 are classified into two categories based on packaging and compliance status:

Direct Manufacturer Substitutes (Same Base Design, Different Packaging):

• PS2561L-1-F3-A: Tape & Reel packaging variant, ROHS3 compliant
• PS2561L-1-V-F3-A: Tape & Reel packaging variant with extended electrical characterization, ROHS3 compliant

Parametric Equivalents (Same Electrical Characteristics, Different Packaging):

• PS2561L-1-A: Tube packaging, ROHS3 compliant
• PS2561L-1-V-A: Tube packaging with extended characterization, ROHS3 compliant
• PS2581L2-A: Alternative NEPOC series device, Tube packaging, ROHS3 compliant

All substitute parts maintain identical electrical performance across isolation voltage (5000Vrms), output type (transistor), current transfer ratio (80-400% @ 5mA), output voltage/current ratings (80V / 50mA), and operating temperature range (-55°C to 100°C). Variations exist only in packaging configuration (Tape & Reel vs. Tube) and regulatory compliance status (all substitutes are ROHS3 compliant, addressing the RoHS non-compliant status of the original part).

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts share identical electrical specifications with the PS2561L2-1 across isolation voltage, transistor output characteristics, current transfer ratio, and thermal operating range. Selection among substitutes is determined by packaging requirement and regulatory compliance needs.

For applications requiring Tape & Reel packaging: PS2561L-1-F3-A or PS2561L-1-V-F3-A. The PS2561L-1-V-F3-A offers higher inventory availability (25100 units vs. 4468 units).

For applications requiring Tube packaging: PS2561L-1-A, PS2561L-1-V-A, or PS2581L2-A. All three maintain ROHS3 compliance with varying inventory levels.

All substitute parts are classified as "Not For New Designs" or maintain obsolete status, reflecting the legacy nature of this optoisolator series. For new design development, consultation with component specification databases for current-production alternatives is warranted.

Frequently Asked Questions (FAQ)

Q: Are all listed substitutes direct replacements for the PS2561L2-1?

A: All listed parts maintain identical electrical characteristics across the critical parameters: 5000Vrms isolation voltage, 1-channel transistor output, 80-400% current transfer ratio at 5mA, 80V maximum output voltage, and 50mA output current. Substitution is valid provided the application accommodates the packaging format variation (Tape & Reel or Tube vs. the original 4-SMD).

Q: What is the difference between PS2561L-1-F3-A and PS2561L-1-V-F3-A?

A: Both parts are supplied by Renesas Electronics in Tape & Reel packaging with ROHS3 compliance. The "V" designation in PS2561L-1-V-F3-A indicates extended electrical characterization. Electrical parameters remain identical; selection depends on packaging quantity requirements and procurement specifications.

Q: How does packaging selection affect component performance?

A: Tape & Reel (TR) packaging is standard for automated assembly lines and high-volume production. Tube packaging is suitable for manual assembly or lower-volume applications. Electrical performance is independent of packaging format for all listed substitutes.

Q: What is the significance of ROHS3 compliance on substitute parts?

A: All substitute parts from Renesas Electronics achieve ROHS3 compliance, addressing the RoHS non-compliant status of the original CEL PS2561L2-1. ROHS3 compliance ensures compliance with Restriction of Hazardous Substances regulations for lead-free assembly processes and environmental standards.

Q: Can PS2581L2-A be used as a substitute despite the different base product number?

A: PS2581L2-A is a parametric equivalent within the NEPOC series with identical isolation voltage, output type, current transfer ratio, and thermal operating range. The different base product number (PS2581 vs. PS2561) represents a variant designation within the same product family. Electrical substitution is valid; confirmation of pinout compatibility with PCB layout is required.

Q: Are there inventory constraints affecting substitute selection?

A: PS2561L-1-V-F3-A offers the highest inventory availability (25100 units), followed by PS2581L2-A (7954 units). PS2561L-1-A (2300 units) and PS2561L-1-F3-A (4468 units) have more limited stock. Inventory status should be verified with suppliers prior to production commitment.