PS2561L-1-L-A Equivalent & Substitute Parts

Part Overview

The PS2561L-1-L-A is a single-channel optoisolator with transistor output manufactured by CEL, designed for high-voltage isolation applications requiring 5000Vrms isolation rating. This component is classified as discontinued at DiGi Electronics, necessitating identification of active equivalent parts to maintain supply chain continuity for new designs and production requirements. The part operates with DC input and provides transistor output suitable for signal isolation in industrial and consumer electronics applications.

Substiute Parts

PS2561L-1-L-A

CELIn Stock: 776PS2561L-1-L-A Datasheet

Current PartRFQ

PS2501L-1-L-A

Renesas Electronics CorporationIn Stock: 11472PS2501L-1-L-A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS2561L-1-L-A is determined by strict equivalence across the following critical parameters:

Isolation and Safety Specifications: Voltage isolation rating of 5000Vrms is mandatory for functional equivalence.

Channel Configuration: Single-channel architecture must be maintained.

Output Characteristics: Transistor output type with maximum output voltage of 80V and maximum output current of 50mA must be preserved.

Transfer Ratio Performance: Current transfer ratio range of 200% to 400% @ 5mA defines the optical coupling efficiency.

Switching Performance: Rise and fall times of 3µs and 5µs respectively establish the switching speed envelope.

Environmental Compliance: RoHS3 compliance and operating temperature range of -55°C to 100°C are required for regulatory and operational compatibility.

Package Specification: 4-SMD, Gull Wing surface mount package is required for mechanical and electrical compatibility with existing PCB designs.

Parameter Comparison

Engineering Selection Recommendations

The PS2501L-1-L-A manufactured by Renesas Electronics Corporation is a direct parametric equivalent to the discontinued PS2561L-1-L-A. All electrical specifications, mechanical package dimensions, and environmental operating parameters are identical across both components.

Supply Status Advantage: The PS2501L-1-L-A maintains active product status with 11,401 pieces in stock, providing reliable supply chain availability compared to the discontinued PS2561L-1-L-A.

Regulatory Compliance: Both components maintain identical RoHS3 compliance, REACH affected status, and EAR99 export classification, ensuring no regulatory barriers to substitution.

Packaging and Moisture Sensitivity: Both parts utilize identical 4-SMD Gull Wing surface mount packaging with MSL Level 1 (Unlimited) moisture sensitivity rating, permitting direct PCB assembly compatibility without design modification.

Functional Performance: Identical current transfer ratio specifications (200% to 400% @ 5mA), switching characteristics (3µs rise time, 5µs fall time), and output ratings (80V maximum, 50mA maximum) ensure functional interchangeability in existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can PS2501L-1-L-A be used as a direct replacement for PS2561L-1-L-A in existing designs?

A: Yes. The PS2501L-1-L-A is a parametric equivalent with identical electrical specifications, package type, and environmental ratings. No circuit design modifications are required for substitution.

Q: Are there any differences in isolation voltage rating between these parts?

A: No. Both components provide 5000Vrms isolation voltage rating, meeting identical high-voltage isolation requirements.

Q: What is the significance of the current transfer ratio specification?

A: The current transfer ratio of 200% to 400% @ 5mA defines the optical coupling efficiency between the LED input and transistor output. Identical specifications ensure equivalent signal transmission characteristics and circuit performance.

Q: Do both parts require identical PCB footprints?

A: Yes. Both components use 4-SMD Gull Wing surface mount packaging, requiring identical PCB footprints and assembly processes. No layout modifications are necessary.

Q: Is there a difference in moisture sensitivity between these optoisolators?

A: No. Both parts carry MSL Level 1 (Unlimited) moisture sensitivity rating, indicating no moisture-related handling restrictions during storage or assembly.

Q: What is the operating temperature range for both components?

A: Both the PS2561L-1-L-A and PS2501L-1-L-A operate across -55°C to 100°C, providing identical thermal performance envelope for industrial and consumer applications.

Q: Are there any compliance or export restrictions affecting substitution?

A: Both components maintain identical ROHS3 compliance, REACH affected status, and EAR99 export classification. No additional compliance barriers exist for substitution.