PS2561-1-W-A Equivalent & Substitute Parts

Part Overview

The PS2561-1-W-A is a single-channel optoisolator with transistor output, rated for 5000Vrms isolation voltage. Manufactured by CEL in the NEPOC series, this component is designed for applications requiring galvanic isolation with DC input and transistor output configuration. The part is discontinued at DiGi Electronics, necessitating identification of active equivalent components that maintain identical electrical and mechanical specifications for continued system support and new design implementations.

Substiute Parts

PS2561-1-W-A

CELIn Stock: 968PS2561-1-W-A Datasheet

Current PartRFQ

PS2501-1-W-A

Renesas Electronics CorporationIn Stock: 1053PS2501-1-W-A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS2561-1-W-A is determined by strict equivalence across the following critical parameters:

Isolation and Safety Specifications: Voltage - Isolation must equal 5000Vrms; RoHS3 compliance and REACH Affected status must be maintained.

Electrical Performance: Current Transfer Ratio (Min/Max) must match 130% / 260% @ 5mA; Rise / Fall Time must equal 3µs / 5µs; Voltage - Output (Max) must equal 80V; Current - Output / Channel must equal 50mA; Vce Saturation (Max) must not exceed 300mV.

Input/Output Configuration: Input Type must be DC; Output Type must be Transistor; Voltage - Forward (Vf) (Typ) must equal 1.17V; Current - DC Forward (If) (Max) must equal 80 mA.

Physical and Environmental Compatibility: Mounting Type must be Through Hole; Package / Case must be 4-DIP (0.300", 7.62mm); Operating Temperature range must be -55°C ~ 100°C; Moisture Sensitivity Level must be 1 (Unlimited).

Regulatory Compliance: ECCN must be EAR99; HTSUS must be 8541.49.8000.

The PS2501-1-W-A from Renesas Electronics Corporation meets all specified parameters and qualifies as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

The PS2501-1-W-A manufactured by Renesas Electronics Corporation is a direct parametric equivalent to the discontinued PS2561-1-W-A. All electrical specifications, isolation ratings, output characteristics, and physical dimensions are identical. Both components maintain ROHS3 compliance and REACH Affected status, ensuring regulatory alignment for new designs and legacy system replacements.

The PS2501-1-W-A carries Active product status with confirmed inventory availability (1020 Pcs New Original In Stock), providing supply chain continuity. The component is supplied in Tube packaging and maintains the same 4-DIP through-hole form factor, enabling direct PCB substitution without layout modifications.

For applications currently using the PS2561-1-W-A or requiring equivalent optoisolator performance with 5000Vrms isolation, single-channel transistor output, and -55°C to 100°C operating range, the PS2501-1-W-A is the appropriate active component selection.

Frequently Asked Questions (FAQ)

Q: Can the PS2501-1-W-A be used as a direct replacement for PS2561-1-W-A in existing designs?

A: Yes. The PS2501-1-W-A is a parametric equivalent with identical electrical specifications, isolation voltage, output current rating, and 4-DIP package dimensions. Direct PCB substitution is supported without circuit modifications.

Q: What are the key differences between these two optoisolators?

A: The components are electrically and mechanically identical. The primary difference is manufacturer (CEL vs. Renesas Electronics Corporation) and product status (Discontinued vs. Active). The PS2501-1-W-A offers active supply availability.

Q: Are there any packaging differences between PS2561-1-W-A and PS2501-1-W-A?

A: Both components use 4-DIP (0.300", 7.62mm) through-hole packaging. The PS2501-1-W-A is supplied in Tube packaging, while the PS2561-1-W-A packaging type was not specified. Pin configuration and PCB footprint are identical.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both the PS2561-1-W-A and PS2501-1-W-A are ROHS3 Compliant, REACH Affected, classified as EAR99 for export control, and assigned HTSUS code 8541.49.8000. Moisture Sensitivity Level is 1 (Unlimited) for both.

Q: What is the isolation voltage rating, and is it the same for both parts?

A: Both components are rated for 5000Vrms isolation voltage, meeting high-voltage galvanic isolation requirements in industrial and safety-critical applications.

Q: Can the PS2501-1-W-A handle the same output current as the PS2561-1-W-A?

A: Yes. Both components support 50mA maximum output current per channel with identical Vce Saturation (Max) of 300mV, ensuring equivalent switching performance and load-driving capability.

Q: What is the current transfer ratio specification for these optoisolators?

A: Both components specify a Current Transfer Ratio of 130% (Min) to 260% (Max) at 5mA input current, providing consistent optical coupling efficiency across the operating range.

Q: Are the rise and fall times identical?

A: Yes. Both the PS2561-1-W-A and PS2501-1-W-A have Rise / Fall Time (Typ) of 3µs and 5µs respectively, supporting equivalent switching speed performance in time-sensitive applications.

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

A: Both components operate across -55°C to 100°C, supporting industrial and extended-temperature applications with identical thermal performance specifications.