PS2501-4-A Equivalent & Substitute Parts

Part Overview

The PS2501-4-A is a 4-channel optoisolator with transistor output, rated for 5000Vrms isolation voltage. This component provides galvanic isolation for DC input signals with transistor-based output switching capability. The device is packaged in a 16-DIP through-hole configuration and operates across the industrial temperature range of -55°C to 100°C.

The PS2501-4-A manufactured by CEL is discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this optoisolator topology.

Substiute Parts

PS2501-4-A

CELIn Stock: 10264PS2501-4-A Datasheet

Current PartRFQ

PS2501-4-A

Renesas Electronics CorporationIn Stock: 10213PS2501-4-A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS2501-4-A is determined by strict equivalence across the following critical parameters:

Isolation and Channel Configuration: The substitute part must provide 4 channels with 5000Vrms isolation voltage to maintain galvanic isolation performance in the target application.

Output Characteristics: The substitute must feature transistor output topology with maximum output voltage of 80V and per-channel current capacity of 50mA to ensure compatible switching behavior.

Current Transfer Ratio: The substitute must maintain the specified current transfer ratio range of 80% to 600% at 5mA input to preserve signal fidelity and control characteristics.

Saturation Performance: Maximum Vce saturation of 300mV ensures low on-state voltage drop and thermal efficiency.

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

Package and Mounting: The 16-DIP through-hole package with 0.300" (7.62mm) pitch is mandatory for direct board-level compatibility without redesign.

Temperature Range: Operating range of -55°C to 100°C must be maintained for industrial application support.

Compliance: RoHS3 compliance is required for regulatory alignment.

Parameter Comparison

Engineering Selection Recommendations

The PS2501-4-A manufactured by Renesas Electronics Corporation is a parametric equivalent to the discontinued CEL PS2501-4-A. Both parts share identical electrical specifications, package configuration, and compliance certifications.

Compliance Alignment: Both variants maintain ROHS3 compliance and REACH affected status, ensuring regulatory compatibility in applications subject to these requirements.

Product Status Consideration: The CEL variant is discontinued at DiGi Electronics, while the Renesas variant carries a "Not For New Designs" status. For ongoing production support of existing designs, the Renesas Electronics PS2501-4-A provides functional continuity with identical parametric performance.

Packaging: The Renesas variant is supplied in tube packaging, which may differ from the original CEL packaging format. Verify packaging compatibility with existing assembly and handling procedures.

Electrical Equivalence: All critical electrical parameters—isolation voltage, channel count, current transfer ratio, output voltage and current ratings, saturation characteristics, and switching speed—are identical between both variants, enabling direct functional substitution.

Frequently Asked Questions (FAQ)

Q: Can the Renesas PS2501-4-A directly replace the CEL PS2501-4-A in existing designs?

A: Yes. Both parts are parametrically equivalent across all electrical specifications, package configuration, and compliance certifications. Direct substitution is supported without circuit modification.

Q: What are the critical parameters that define substitution eligibility for the PS2501-4-A?

A: Substitution requires equivalence in: 4-channel configuration, 5000Vrms isolation voltage, 80-600% current transfer ratio at 5mA, transistor output topology, 80V maximum output voltage, 50mA per-channel current capacity, 300mV maximum Vce saturation, 3µs/5µs rise/fall times, -55°C to 100°C operating temperature, 16-DIP through-hole package, and ROHS3 compliance.

Q: Does the Renesas variant packaging differ from the original CEL part?

A: Yes. The Renesas variant is supplied in tube packaging, while the original CEL packaging format is not specified in the provided data. Confirm packaging compatibility with your assembly process before procurement.

Q: Are there any compliance differences between the two variants?

A: No. Both the CEL and Renesas variants maintain identical RoHS3 compliance, REACH affected status, and moisture sensitivity level (MSL 1 - Unlimited).

Q: What is the significance of the "Not For New Designs" status on the Renesas variant?

A: This status indicates that Renesas does not recommend the PS2501-4-A for new design implementations. However, for sustaining production of existing designs, this variant provides full parametric equivalence to the discontinued CEL part.

Q: Can the PS2501-4-A be used in applications requiring high-speed switching?

A: The specified rise and fall times of 3µs and 5µs define the maximum switching frequency capability. Applications requiring faster switching performance require evaluation against these timing specifications.

Q: What is the maximum isolation voltage rating, and is it suitable for high-voltage applications?

A: The PS2501-4-A provides 5000Vrms isolation voltage. Applications requiring higher isolation ratings require alternative optoisolator topologies.