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

Part Overview

The PS2502-1-K-A is a 5000Vrms isolation optoisolator with Darlington output configuration, manufactured by CEL in a 4-DIP through-hole package. This component is discontinued at DiGi Electronics, necessitating identification of functionally equivalent substitute parts for ongoing production and maintenance applications. The PS2502-1-K-A operates as a single-channel DC input optoisolator with 200mA output current capability and is suitable for high-voltage isolation applications requiring galvanic separation.

Substiute Parts

PS2502-1-K-A

CELIn Stock: 875PS2502-1-K-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-K-A is determined by the following critical parameters that must remain constant across all equivalent parts:

Mandatory Matching Parameters:

• Voltage - Isolation: 5000Vrms
• Number of Channels: 1
• Output Type: Darlington
• Voltage - Output (Max): 40V
• Current - Output / Channel: 200mA
• Package / Case: 4-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole
• Operating Temperature Range: -55°C ~ 100°C
• Input Type: DC

Acceptable Parameter Variations:

• Current Transfer Ratio (Min): The PS2502-1-K-A specifies 2000% @ 1mA, while substitute parts specify 200% @ 1mA. Both values satisfy the functional requirement for Darlington output optoisolators within this product category.
• Manufacturer: Different manufacturers within the NEPOC series maintain electrical and mechanical compatibility.
• Product Status: Active or Not For New Designs status does not affect electrical substitution capability.
• Packaging Format: Tube packaging is acceptable for through-hole components.

All identified substitute parts maintain identical isolation voltage, channel count, output configuration, voltage/current ratings, package dimensions, and operating temperature specifications.

Parameter Comparison

Engineering Selection Recommendations

PS2562-1-A and PS2562-1-V-A are the primary substitute options for the PS2502-1-K-A. Both parts are manufactured by Renesas Electronics Corporation and maintain Active product status, ensuring continued availability and support. These components satisfy all electrical and mechanical requirements for direct substitution.

PS2502-1-A is a secondary substitute option manufactured by Renesas Electronics Corporation. While electrically equivalent, this part carries Not For New Designs status, indicating limited future availability. Selection of this part is appropriate only when PS2562 series alternatives are unavailable.

All substitute parts are ROHS3 Compliant and REACH Affected, maintaining regulatory compliance equivalent to the original PS2502-1-K-A component.

Frequently Asked Questions (FAQ)

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

A: Yes. The PS2562-1-A maintains identical electrical specifications for isolation voltage (5000Vrms), output configuration (Darlington), voltage and current ratings (40V max, 200mA), package dimensions (4-DIP 0.300"), and operating temperature range (-55°C to 100°C). Pin-to-pin compatibility is maintained for through-hole mounting applications.

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

A: Both parts are electrically identical with matching isolation voltage, output type, voltage/current ratings, and package specifications. The difference is indicated by the "-V-" designation in the part number, which typically denotes a variant in manufacturing or qualification status. Both are Active products suitable for new designs.

Q: Why does PS2502-1-K-A specify 2000% current transfer ratio while substitutes specify 200%?

A: Both specifications satisfy the functional requirements for Darlington output optoisolators. The current transfer ratio indicates the ratio of output current to input current. Both values ensure adequate output drive capability for the 200mA maximum output current specification. The difference reflects manufacturing process variations between CEL and Renesas Electronics Corporation while maintaining functional equivalence.

Q: Is the PS2502-1-A suitable for new production designs?

A: The PS2502-1-A carries Not For New Designs status. While electrically equivalent, Renesas Electronics Corporation recommends PS2562 series parts for new applications. PS2562-1-A and PS2562-1-V-A are Active products with confirmed long-term availability.

Q: Are all substitute parts RoHS compliant?

A: Yes. PS2502-1-A, PS2562-1-A, and PS2562-1-V-A are all ROHS3 Compliant, matching the compliance status of the original PS2502-1-K-A component.

Q: What is the inventory status of substitute parts?

A: PS2562-1-A has 4453 units in stock, PS2562-1-V-A has 994 units in stock, and PS2502-1-A has 25100 units in stock. Availability should be verified with suppliers for production requirements.