PS2502-1-M-A Optoisolator Equivalent & Substitute Parts

Part Overview

The PS2502-1-M-A is a 5000Vrms isolation Darlington output optoisolator in 4-DIP packaging manufactured by CEL. This component is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives. The PS2502-1-M-A belongs to the NEPOC series and provides single-channel isolation with Darlington output configuration suitable for DC input applications requiring high voltage isolation and moderate output current capability.

Substiute Parts

PS2502-1-M-A

CELIn Stock: 1087PS2502-1-M-A Datasheet

Current PartRFQ

PS2502-1-A

Renesas Electronics CorporationIn Stock: 25121PS2502-1-A Datasheet

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PS2562-1-A

Renesas Electronics CorporationIn Stock: 4524PS2562-1-A Datasheet

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PS2562-1-V-A

Renesas Electronics CorporationIn Stock: 1031PS2562-1-V-A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS2502-1-M-A is determined by strict equivalence across the following critical parameters:

Isolation Voltage: 5000Vrms isolation rating is the primary electrical requirement for high-voltage isolation applications.

Channel Configuration: Single-channel (1 Channel) output topology must be maintained.

Output Stage Type: Darlington output configuration defines the switching characteristics and current handling behavior.

Package Compatibility: 4-DIP (0.300", 7.62mm) through-hole mounting ensures mechanical and electrical compatibility with existing PCB layouts.

Current Transfer Ratio: Minimum 200% @ 1mA establishes the optical coupling efficiency baseline.

Output Specifications: Maximum output voltage of 40V and output current of 200mA define the load-driving capability.

Temperature Range: Operating range of -55°C ~ 100°C must be maintained for thermal compatibility.

All substitute parts listed maintain these critical parameters without deviation. Substitution is based on functional equivalence, not performance enhancement or cost optimization.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Status):

PS2562-1-A and PS2562-1-V-A are the preferred substitutes for new designs and ongoing production. Both parts are manufactured by Renesas Electronics Corporation with Active product status, ensuring long-term availability and supply chain stability. These parts maintain complete electrical and mechanical equivalence to the PS2502-1-M-A across all specified parameters.

Secondary Substitute (Not For New Designs):

PS2502-1-A, manufactured by Renesas Electronics Corporation, provides functional equivalence but carries "Not For New Designs" status. This part is suitable for legacy system maintenance and repair applications where component continuity is required, but should not be selected for new product development.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance, REACH affected status, and EAR99 export classification identical to the original PS2502-1-M-A. Moisture sensitivity level remains at MSL 1 (Unlimited) across all alternatives, eliminating moisture-related handling constraints.

Inventory Availability:

PS2562-1-A maintains the highest inventory level (4453 Pcs) among active alternatives, followed by PS2562-1-V-A (994 Pcs). PS2502-1-A provides supplementary availability (25100 Pcs) for legacy applications.

Frequently Asked Questions (FAQ)

Q: Can PS2562-1-A directly replace PS2502-1-M-A in existing designs?

A: Yes. PS2562-1-A maintains identical electrical specifications (5000Vrms isolation, 1 channel, Darlington output, 200% minimum CTR, 40V maximum output, 200mA output current) and mechanical compatibility (4-DIP through-hole package). Direct substitution is electrically and mechanically valid.

Q: What is the difference between PS2562-1-A and PS2562-1-V-A?

A: Both parts are functionally equivalent across all provided electrical and mechanical parameters. The "-V-" designation indicates a variant designation from Renesas Electronics Corporation. Selection between these parts should be based on availability and supply chain requirements, as electrical performance is identical.

Q: Why is PS2502-1-A marked "Not For New Designs"?

A: "Not For New Designs" status indicates that Renesas Electronics Corporation has transitioned this part to legacy support. While functionally equivalent and suitable for maintenance applications, new product development should prioritize PS2562-1-A or PS2562-1-V-A to ensure long-term component availability and manufacturer support.

Q: Are there any thermal or environmental differences between the substitutes?

A: No. All substitute parts maintain identical operating temperature range (-55°C ~ 100°C) and moisture sensitivity level (MSL 1 - Unlimited). Environmental performance is equivalent across all alternatives.

Q: Does the 4-DIP package ensure PCB compatibility?

A: Yes. All substitute parts use 4-DIP (0.300", 7.62mm) through-hole packaging with identical pin configuration and spacing. PCB layouts designed for PS2502-1-M-A require no modification for any listed substitute.

Q: Are compliance certifications maintained across all substitutes?

A: Yes. All substitute parts maintain ROHS3 compliance, REACH affected status, and EAR99 export classification. No compliance re-qualification is required when substituting between listed parts.