PS2561-1-M-A Equivalent & Substitute Parts

Part Overview

The PS2561-1-M-A is a 5000Vrms optoisolator with transistor output, single-channel configuration in 4-DIP package. This component is discontinued at DiGi Electronics, creating the need to identify and qualify equivalent substitute parts for continued application support. The PS2501-1-M-A from Renesas Electronics Corporation provides functional equivalence with identical electrical and mechanical specifications while maintaining active product status.

Substiute Parts

PS2561-1-M-A

CELIn Stock: 893PS2561-1-M-A Datasheet

Current PartRFQ

PS2501-1-M-A

Renesas Electronics CorporationIn Stock: 4803PS2501-1-M-A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The PS2501-1-M-A qualifies as a direct parametric equivalent to the PS2561-1-M-A based on matching specifications across all critical electrical and mechanical parameters. Substitution eligibility is determined by:

Isolation Voltage: Both parts provide 5000Vrms isolation, the primary performance criterion for optoisolator selection.

Channel Configuration & Output Stage: Single-channel transistor output topology is identical, with matching current handling (50mA per channel) and saturation characteristics (300mV maximum Vce).

Current Transfer Ratio: Both parts operate within the same CTR window (80% to 240% @ 5mA), ensuring consistent optical coupling efficiency.

Thermal & Switching Performance: Operating temperature range (-55°C ~ 100°C) and switching times (3µs rise, 5µs fall) are identical.

Package & Form Factor: Both components utilize 4-DIP through-hole packaging (0.300", 7.62mm), enabling direct board-level compatibility.

Regulatory Compliance: Both parts maintain ROHS3 compliance, REACH-affected designation, and EAR99 export classification.

Parameter Comparison

Engineering Selection Recommendations

The PS2501-1-M-A from Renesas Electronics Corporation is the direct substitute for the discontinued PS2561-1-M-A. Selection of the Renesas part is supported by:

Product Status: The PS2501-1-M-A maintains active product status with 4776 units in current inventory, ensuring sustained availability for production and ongoing support.

Regulatory Compliance: Both components carry identical RoHS3, REACH, and EAR99 certifications, eliminating regulatory re-qualification requirements.

Parametric Identity: All electrical specifications, mechanical dimensions, and thermal characteristics are matched across the component family, enabling direct board-level substitution without circuit redesign.

Series Consistency: Both parts belong to the NEPOC optoisolator series, confirming design lineage and validated performance within established application families.

Frequently Asked Questions (FAQ)

Q: Can the PS2501-1-M-A be directly substituted for the PS2561-1-M-A on existing assemblies?

A: Yes. The PS2501-1-M-A provides complete parametric equivalence, including identical package geometry (4-DIP, 0.300" spacing), mounting type (through-hole), and electrical specifications. Direct board-level substitution is supported without modification.

Q: Are there differences in current transfer ratio performance between these parts?

A: No. Both components operate within the identical CTR window of 80% to 240% at 5mA input current, ensuring matched optical coupling efficiency and circuit performance.

Q: What is the primary reason for substitution?

A: The PS2561-1-M-A is discontinued at DiGi Electronics. The PS2501-1-M-A provides equivalent functionality and is actively manufactured by Renesas Electronics Corporation, ensuring continued supply for production needs.

Q: Are thermal and switching characteristics identical?

A: Yes. Operating temperature range (-55°C ~ 100°C), rise time (3µs), and fall time (5µs) are identical between both parts, supporting equivalent performance in temperature-critical and timing-sensitive applications.

Q: Do both parts satisfy the same regulatory requirements?

A: Yes. Both the PS2561-1-M-A and PS2501-1-M-A maintain RoHS3 compliance, REACH-affected status, and EAR99 export classification, requiring no compliance re-qualification for substitution.

Q: What is the inventory status difference between these parts?

A: The PS2561-1-M-A has 851 units in stock (discontinued status). The PS2501-1-M-A has 4776 units in current inventory with active product status, providing superior long-term supply assurance.