PS2506-1-A Optoisolator Equivalent & Substitute Parts

Part Overview

The PS2506-1-A is a 5000Vrms isolation optoisolator with Darlington output configuration, designed for single-channel isolation applications requiring high voltage isolation in 4-DIP through-hole packaging. This component is manufactured by CEL and has been discontinued at DiGi Electronics, necessitating identification of equivalent substitute parts for ongoing design support and procurement continuity.

Substiute Parts

PS2506-1-A

CELIn Stock: 16212PS2506-1-A Datasheet

Current PartRFQ

PS2506-1-A

Renesas Electronics CorporationIn Stock: 16310PS2506-1-A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS2506-1-A optoisolator 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) design must be maintained for circuit compatibility.

Output Configuration: Darlington output type defines the switching characteristics and load-driving capability.

Current Transfer Ratio: Minimum 200% @ 1mA establishes the optical coupling efficiency and input-to-output signal transfer performance.

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

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

Operating Temperature Range: -55°C ~ 100°C establishes the thermal operating envelope.

Compliance Requirements: ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity ensure regulatory and manufacturing process compatibility.

Substitute parts must match all these parameters without deviation. Parts differing in isolation voltage, channel count, output type, package configuration, or compliance status are not equivalent.

Parameter Comparison

Engineering Selection Recommendations

The PS2506-1-A manufactured by Renesas Electronics Corporation is a parametric equivalent to the original CEL PS2506-1-A optoisolator. Both parts share identical electrical specifications, package configuration, and compliance certifications.

Product Status Consideration: The original CEL part is discontinued at DiGi Electronics. The Renesas Electronics version carries a Preliminary product status designation, indicating active development or qualification phase. Selection of the Renesas equivalent should account for this status classification in procurement planning.

Compliance Alignment: Both versions maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with current manufacturing and environmental standards.

Packaging Specification: The Renesas version is supplied in Tube packaging, whereas the original CEL packaging specification was not provided. Tube packaging is standard for through-hole components and presents no functional or electrical difference for circuit implementation.

Electrical Equivalence: All critical electrical parameters—isolation voltage, current transfer ratio, output specifications, switching characteristics, and operating temperature range—are identical between the two manufacturers, confirming direct functional substitution capability.

Frequently Asked Questions (FAQ)

Q: Can the Renesas Electronics PS2506-1-A directly replace the CEL PS2506-1-A in existing designs?

A: Yes. Both parts are parametrically equivalent across all electrical specifications, output characteristics, and package configuration. Direct pin-for-pin substitution is supported without circuit modification.

Q: What is the significance of the "Preliminary" product status for the Renesas part?

A: Preliminary status indicates the part is in active development or qualification phase. This designation does not affect electrical performance or compatibility but may influence long-term availability and supply chain planning. Verify current status with the manufacturer for production commitments.

Q: Are there any differences in isolation voltage performance between the two manufacturers?

A: No. Both versions provide 5000Vrms isolation rating with identical electrical characteristics.

Q: Does the Tube packaging of the Renesas version affect circuit performance?

A: No. Tube packaging is a supply format only and does not affect electrical performance, pin configuration, or functional characteristics. The 4-DIP through-hole package dimensions and pinout remain identical.

Q: What parameters must remain constant when selecting a substitute optoisolator?

A: The following parameters must match exactly: isolation voltage (5000Vrms), number of channels (1), output type (Darlington), current transfer ratio (200% @ 1mA minimum), output voltage rating (40V maximum), output current capability (200mA), package type (4-DIP 0.300" pitch), and operating temperature range (-55°C ~ 100°C).

Q: Are both parts ROHS3 compliant?

A: Yes. Both the CEL and Renesas Electronics versions are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating.

Q: What is the significance of the 200% current transfer ratio specification?

A: The 200% minimum current transfer ratio @ 1mA defines the optical coupling efficiency. This specification ensures reliable signal transfer from the input LED to the output photodetector and Darlington transistor stage across the specified operating conditions.