PS2501-1-L-A Optoisolator Equivalent & Substitute Parts

Part Overview

The PS2501-1-L-A is a high-voltage isolation optoisolator with transistor output, rated for 5000Vrms isolation voltage. This component is designed for applications requiring galvanic isolation between input and output circuits with single-channel switching capability. The main part (CEL manufacturer) is discontinued at DiGi Electronics, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability.

Substiute Parts

PS2501-1-L-A

CELIn Stock: 900PS2501-1-L-A Datasheet

Current PartRFQ

PS2501-1-L-A

Renesas Electronics CorporationIn Stock: 6162PS2501-1-L-A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS2501-1-L-A is determined by strict equivalence across the following critical parameters:

Isolation Performance: 5000Vrms isolation voltage is the primary electrical requirement. Substitute parts must maintain this specification without deviation.

Output Characteristics: Single-channel transistor output with 50mA maximum current per channel and 80V maximum output voltage defines the switching capability.

Current Transfer Ratio: The range of 200% to 400% @ 5mA input current establishes the optical coupling efficiency and must be matched exactly.

Switching Speed: Rise and fall times of 3µs and 5µs respectively define the maximum switching frequency capability.

Package Compatibility: 4-DIP through-hole package with 0.300" (7.62mm) spacing is mandatory for PCB layout compatibility.

Environmental Compliance: RoHS3 compliance and REACH status must be maintained for regulatory requirements.

Substitute parts are identified only when all parameters listed above are identical to the main part specification.

Parameter Comparison

Engineering Selection Recommendations

The PS2501-1-L-A manufactured by Renesas Electronics Corporation is a direct parametric equivalent to the discontinued CEL version. Both parts share identical electrical specifications, package configuration, and regulatory compliance status.

Supply Availability: The Renesas Electronics version maintains active product status with 6080 pieces in stock, compared to the CEL version which is discontinued. This availability difference is the primary driver for substitution.

Regulatory Compliance: Both versions maintain RoHS3 compliance and REACH affected status, ensuring compatibility with current environmental regulations and procurement requirements.

Packaging: The Renesas version is supplied in tube packaging, which is standard for through-hole components and compatible with standard PCB assembly processes.

Design Compatibility: No circuit modifications are required when substituting the Renesas version for the CEL version. Pin configuration, electrical performance, and thermal characteristics are identical across all specified parameters.

Frequently Asked Questions (FAQ)

Q: Can the Renesas Electronics PS2501-1-L-A directly replace the CEL PS2501-1-L-A without circuit modifications?

A: Yes. Both parts are parametrically identical across all electrical specifications, package dimensions, and pin configuration. Direct substitution is possible without design changes.

Q: What determines whether a part qualifies as an equivalent substitute?

A: Equivalence is established through exact matching of isolation voltage (5000Vrms), channel count (1), output type (transistor), current transfer ratio range (200-400% @ 5mA), maximum output voltage (80V), maximum output current (50mA), switching times (3µs/5µs), operating temperature range (-55°C to 100°C), and package type (4-DIP through-hole).

Q: Are there any differences in packaging between the CEL and Renesas versions?

A: The CEL version packaging is not specified in the available data. The Renesas version is supplied in tube packaging, which is standard for through-hole DIP components and compatible with conventional PCB assembly equipment.

Q: Does the Renesas version maintain the same regulatory compliance?

A: Yes. The Renesas PS2501-1-L-A maintains RoHS3 compliance, REACH affected status, and EAR99 export classification identical to the CEL version.

Q: What is the moisture sensitivity level for both versions?

A: Both versions are rated MSL 1 (Unlimited), indicating no moisture sensitivity concerns and no special storage or handling requirements.

Q: Are there any performance differences in switching speed between the two manufacturers?

A: No. Both versions specify identical rise and fall times of 3µs and 5µs respectively, ensuring equivalent switching performance in circuit applications.