PS2802-1-A Optoisolator: Equivalent & Substitute Parts

Part Overview

The PS2802-1-A is a single-channel optoisolator with Darlington output, rated for 2500Vrms isolation voltage. This component is discontinued at DiGi Electronics, making equivalent and substitute parts essential for ongoing system maintenance and component procurement. The PS2802-1-A serves critical isolation functions in high-voltage switching applications where electrical isolation between circuits is required.

Substiute Parts

PS2802-1-A

CELIn Stock: 957PS2802-1-A Datasheet

Current PartRFQ

PS2802-1-F3-A

Renesas Electronics CorporationIn Stock: 26550PS2802-1-F3-A Datasheet

DirectRFQ

PS2802-1-A

Renesas Electronics CorporationIn Stock: 1840PS2802-1-A Datasheet

Parametric EquivalentRFQ

PS2802-1-V-A

Renesas Electronics CorporationIn Stock: 2935PS2802-1-V-A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PS2802-1-A optoisolator must maintain electrical and mechanical compatibility. The critical parameters that determine substitution suitability are:

• Isolation Voltage: 2500Vrms (non-negotiable for safety-critical applications)
• Number of Channels: 1 channel configuration
• Output Type: Darlington (defines driving capability and saturation characteristics)
• Current Transfer Ratio: 200% minimum @ 1mA (determines optical coupling efficiency)
• Maximum Output Voltage: 40V capability
• Maximum Output Current: 90mA per channel
• Package Type: 4-SOIC surface mount configuration (ensures PCB compatibility)
• Compliance Standards: ROHS3 Compliant, REACH Unaffected

All identified substitute parts maintain identical electrical specifications and packaging, enabling direct board-level replacement without circuit modification.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute (Preferred): PS2802-1-F3-A (Renesas Electronics)

The PS2802-1-F3-A is the recommended substitute. It maintains identical electrical specifications while offering Active product status with significantly higher inventory availability (26,499 units). This part is manufactured by Renesas Electronics Corporation, the primary manufacturer of the PS2802 NEPOC optoisolator series, and is available in Cut Tape and Digi-Reel packaging suitable for both prototype and production environments.

Alternative Substitutes: PS2802-1-V-A (Renesas Electronics)

The PS2802-1-V-A provides equivalent electrical performance with Active product status. This option is suitable for applications where Strip packaging is acceptable. Inventory availability is adequate for system-level integration.

Secondary Option: PS2802-1-A (Renesas Electronics)

The Renesas Electronics version of PS2802-1-A maintains all critical parameters but has "Not For New Designs" status, limiting its suitability for new system development. This part remains viable for direct replacement in existing designs or legacy system support.

Frequently Asked Questions (FAQ)

Q: Are all listed substitute parts electrically interchangeable with the original PS2802-1-A?

A: Yes. All substitute parts maintain identical isolation voltage (2500Vrms), current transfer ratio (200% @ 1mA), output characteristics (Darlington, 90mA maximum), and operating temperature range (-55°C to 100°C). Direct board-level substitution without circuit modification is supported.

Q: What is the difference between the packaging types (Cut Tape vs. Strip)?

A: Cut Tape (CT) and Digi-Reel packaging support automated pick-and-place assembly for production volumes. Strip packaging is suitable for smaller quantity manual assembly or prototype applications. All variants use identical 4-SOIC surface mount packages with the same pinout and electrical characteristics.

Q: Does the original CEL manufacturer part number remain viable?

A: The CEL PS2802-1-A is discontinued at DiGi Electronics. While 917 units remain in stock, design transition to an Active status part (PS2802-1-F3-A or PS2802-1-V-A) is recommended for new projects and long-term system support.

Q: Are there compliance or regulatory differences between substitute parts?

A: All parts are ROHS3 Compliant, REACH Unaffected, and carry identical moisture sensitivity ratings (MSL 1 - Unlimited). No compliance advantages or disadvantages exist between substitutes for standard industrial and commercial applications.

Q: What is the significance of "Not For New Designs" product status?

A: This designation indicates the manufacturer limits ongoing design-in activities. Parts with this status remain electrically viable for existing system support and replacement but are not recommended for new product development. Use PS2802-1-F3-A or PS2802-1-V-A for new designs.