PS2561L-1 Optoisolator Equivalent & Substitute Parts

Part Overview

The PS2561L-1 is a 5000Vrms isolation optoisolator with transistor output manufactured by CEL in a 4-SMD surface mount package. The product is currently obsolete, making it necessary to identify equivalent substitute components for ongoing maintenance, repairs, and new procurement requirements. All identified substitutes maintain identical electrical and mechanical characteristics, enabling direct replacement in applications requiring 5kV isolation with 1-channel transistor output configuration.

Substiute Parts

PS2561L-1

CELIn Stock: 2152PS2561L-1 Datasheet

Current PartRFQ

PS2561L-1-A

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

DirectRFQ

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-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

Substitution of PS2561L-1 is based on matching the following critical parameters across all alternatives:

Electrical Parameters (Mandatory Match):

• Voltage - Isolation: 5000Vrms
• Number of Channels: 1
• Output Type: Transistor
• Current Transfer Ratio (Min/Max): 80% – 400% @ 5mA
• Voltage - Output (Max): 80V
• Current - Output / Channel: 50mA
• Vce Saturation (Max): 300mV
• Operating Temperature Range: -55°C ~ 100°C
• Rise / Fall Time: 3µs, 5µs
• Voltage - Forward (Vf) (Typ): 1.17V
• Current - DC Forward (If) (Max): 80 mA

Mechanical Parameters (Mandatory Match):

• Mounting Type: Surface Mount
• Package / Case: 4-SMD, Gull Wing
• Supplier Device Package: 4-SMD

All identified substitutes maintain these exact specifications. Substitution differences occur only in packaging format (Tube vs. Tape & Reel), RoHS compliance status, and REACH classification. These differences address procurement flexibility, regulatory compliance, and supply chain availability without affecting functional performance.

Parameter Comparison

Engineering Selection Recommendations

For Repair and Legacy System Maintenance: PS2561L-1-A and PS2561L-1-V-A are direct substitutes supplied in Tube packaging, maintaining compatibility with manual assembly workflows and legacy procurement processes. Both components are ROHS3 compliant and carry REACH Affected classification.

For Automated Manufacturing and High-Volume Production: PS2561L-1-F3-A and PS2561L-1-V-F3-A are supplied in Tape & Reel format, optimized for pick-and-place assembly equipment. PS2561L-1-F3-A carries REACH Unaffected status, while PS2561L-1-V-F3-A also provides REACH Unaffected compliance. PS2561L-1-V-F3-A offers highest inventory availability at 25,100 pieces.

For Regulatory Compliance Requirements: All Renesas substitutes (PS2561L-1-A, PS2561L-1-F3-A, PS2561L-1-V-F3-A, PS2561L-1-V-A) are ROHS3 compliant, addressing environmental and regulatory mandates that supersede the RoHS non-compliant status of the obsolete original PS2561L-1.

For Supply Chain Optimization: PS2581L2-A offers the highest inventory (7954 pieces), making it optimal for applications where inventory certainty and supply continuity are critical. PS2581L2-A maintains identical electrical and mechanical specifications while providing ROHS3 compliance and REACH Affected status.

Frequently Asked Questions (FAQ)

Q: Are all listed substitutes electrically interchangeable with the original PS2561L-1? A: Yes. All substitutes maintain identical electrical characteristics including 5000Vrms isolation, 1-channel transistor output, 80%–400% current transfer ratio, 80V maximum output voltage, and 50mA per-channel output current. Operating temperature range, input type, output type, and all timing specifications are identical across all parts.

Q: What is the difference between Tube and Tape & Reel packaging? A: Tube packaging (PS2561L-1-A, PS2561L-1-V-A, PS2581L2-A) is used for manual or semi-automated assembly processes and board-level repairs. Tape & Reel packaging (PS2561L-1-F3-A, PS2561L-1-V-F3-A) is optimized for high-speed automated pick-and-place manufacturing lines. Component specifications are electrically identical; packaging format selection depends on assembly methodology.

Q: Why is RoHS compliance important for component selection? A: All substitute parts are ROHS3 compliant, whereas the original PS2561L-1 is RoHS non-compliant. ROHS3 compliance is required for devices manufactured or distributed in the European Union and for many OEMs implementing environmental standards. Substitution with ROHS3-compliant alternatives addresses regulatory and procurement requirements.

Q: What does REACH Affected vs. REACH Unaffected mean? A: REACH is European chemical safety regulation. Parts marked REACH Affected may contain substances of concern and require additional documentation for European distribution. PS2561L-1-F3-A and PS2561L-1-V-F3-A are REACH Unaffected, simplifying European procurement. REACH Affected parts (PS2561L-1-A, PS2561L-1-V-A, PS2581L2-A) remain suitable for global distribution but may require additional compliance documentation.

Q: Are there any performance differences in the mechanical 4-SMD Gull Wing package across all parts? A: No. All parts use identical 4-SMD Gull Wing surface mount packages with equivalent land patterns, lead spacing, and PCB footprints. Direct board-level substitution is mechanically compatible without PCB redesign.

Q: Which substitute should I select for new product designs? A: All listed substitutes carry "Not For New Designs" product status. For new designs requiring 5kV isolation with 1-channel transistor output in NEPOC series, consult Renesas Electronics Corporation for actively supported alternatives within the PS2561 or PS2581 product families.

Q: Why do some parts have variant codes (-A, -V-F3-A, -F3-A) in their part numbers? A: Variant codes identify packaging format, RoHS/environmental compliance version, and manufacturing process options. The base part number PS2561 or PS2581 defines the core electrical specifications. Suffixes such as -A, -F3, -V indicate packaging (Tube/Tape & Reel), compliance revisions, or process variants. All variants listed maintain electrical equivalence.