PS2566-1-A Equivalent & Substitute Parts

Part Overview

The PS2566-1-A is an optoisolator with Darlington output providing 5000Vrms isolation in a 4-DIP package. This component is classified as Obsolete, making identification of functionally equivalent alternatives essential for continued system support and procurement. The PS2506-1-A serves as a parametric equivalent with identical electrical specifications and improved product status.

Substiute Parts

PS2566-1-A

CELIn Stock: 973PS2566-1-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 PS2566-1-A with the PS2506-1-A is based on matching the following critical parameters:

• Isolation Voltage: Both components provide 5000Vrms isolation
• Output Configuration: Both employ Darlington output topology with 1 channel
• Output Specifications: Maximum output voltage of 40V and 200mA per channel
• Current Transfer Ratio: 200% minimum at 1mA input current
• Saturation Characteristics: Vce (sat) maximum of 1V
• Operating Temperature Range: -55°C to 100°C
• Package Format: 4-DIP (0.300", 7.62mm) through-hole mounting
• Switching Performance: Identical rise and fall times of 100µs
• Input Compatibility: AC and DC input capability
• Forward Voltage Characteristics: 1.17V typical Vf with 80mA maximum DC forward current

Parameter Comparison

Engineering Selection Recommendations

The PS2506-1-A is the direct parametric substitute for the PS2566-1-A. Both components are members of the NEPOC series and maintain identical electrical and mechanical specifications across all critical parameters.

Status Considerations: The PS2566-1-A is designated Obsolete, indicating end-of-life status from the original manufacturer. The PS2506-1-A, classified as Preliminary, represents an active alternative with significantly higher inventory availability (16200 units versus 917 units).

Compliance Positioning: The PS2506-1-A carries ROHS3 compliance certification, addressing modern regulatory requirements. Both components are REACH Affected with EAR99 ECCN classification.

Procurement Advantage: The PS2506-1-A from Renesas Electronics Corporation offers enhanced supply chain stability and substantially higher stock levels, reducing lead time risk for production applications.

Frequently Asked Questions (FAQ)

Q: Are PS2566-1-A and PS2506-1-A electrically interchangeable? A: Yes. Both components provide identical electrical specifications including 5000Vrms isolation, 200% minimum current transfer ratio at 1mA, 40V maximum output voltage, and 200mA per-channel output current. The Darlington output topology, saturation characteristics, and switching performance are equivalent.

Q: Can these optoisolators be substituted without circuit modification? A: Yes. The 4-DIP through-hole package, pinout, and all electrical parameters are identical. Direct board-level substitution is supported without requiring schematic or layout changes.

Q: What are the key substitution criteria for these optoisolators? A: Substitution is valid when maintained: isolation voltage (5000Vrms), number of channels (1), output type (Darlington), maximum output voltage (40V), per-channel output current (200mA), Vce saturation (1V max), operating temperature range (-55°C to 100°C), and package format (4-DIP 0.300").

Q: Why is the PS2506-1-A preferred over the PS2566-1-A? A: The PS2566-1-A is classified as Obsolete. The PS2506-1-A provides identical functionality with improved product status (Preliminary), ROHS3 compliance, and significantly greater inventory availability, reducing procurement risk.

Q: Does packaging differ between these parts? A: The electrical and mechanical packages are identical (4-DIP 0.300", 7.62mm through-hole). Supplier device packaging differs: the PS2506-1-A is supplied in tube format, while the PS2566-1-A packaging is unspecified. This does not affect component functionality or interchangeability.