PS2806-4 Optoisolator Equivalent & Substitute Parts

Part Overview

The PS2806-4 is a 4-channel optoisolator with Darlington output configuration, rated for 2500Vrms isolation voltage. This component is classified as Obsolete, indicating it is no longer in active production. The PS2806-4 operates across a temperature range of -55°C to 100°C and is designed for surface mount applications in 16-SOIC packaging.

Due to its obsolete status, identifying equivalent substitute parts is necessary for ongoing system maintenance, repair, and new design considerations where legacy component compatibility is required.

Substiute Parts

PS2806-4

CELIn Stock: 30214PS2806-4 Datasheet

Current PartRFQ

PS2806-4-A

Renesas Electronics CorporationIn Stock: 4274PS2806-4-A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PS2806-4 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Number of Channels: 4
• Voltage - Isolation: 2500Vrms
• Current Transfer Ratio (Min): 200% @ 1mA
• Output Type: Darlington
• Voltage - Output (Max): 40V
• Current - Output / Channel: 100mA
• Vce Saturation (Max): 1V
• Operating Temperature Range: -55°C ~ 100°C

Mechanical Equivalence Requirements:

• Package / Case: 16-SOIC (0.173", 4.40mm Width)
• Mounting Type: Surface Mount

The PS2806-4-A meets all electrical and mechanical equivalence criteria and is therefore classified as a direct substitute part.

Parameter Comparison

Engineering Selection Recommendations

PS2806-4-A Substitution Basis:

The PS2806-4-A is electrically and mechanically equivalent to the PS2806-4 across all specified parameters. Both components share identical channel configuration, isolation voltage rating, current transfer ratio, output characteristics, and thermal operating range.

Compliance Consideration:

The PS2806-4-A carries ROHS3 compliance status, whereas the original PS2806-4 is RoHS non-compliant. For applications subject to RoHS regulatory requirements, the PS2806-4-A provides compliance alignment while maintaining full electrical equivalence.

Product Status Impact:

The PS2806-4-A is designated as "Not For New Designs," indicating it is available for replacement and legacy support applications but not recommended for new product development. The original PS2806-4 is classified as Obsolete, making the PS2806-4-A the appropriate substitute for ongoing system support.

Frequently Asked Questions (FAQ)

Q: Can PS2806-4-A be used as a direct replacement for PS2806-4?

A: Yes. The PS2806-4-A is electrically and mechanically equivalent across all specified parameters, including channel count, isolation voltage, current transfer ratio, output voltage and current ratings, timing characteristics, and operating temperature range. Both components use identical 16-SOIC packaging.

Q: What is the difference between PS2806-4 and PS2806-4-A?

A: The primary differences are manufacturer (CEL vs. Renesas Electronics Corporation), product status (Obsolete vs. Not For New Designs), and RoHS compliance (non-compliant vs. ROHS3 compliant). All electrical and mechanical specifications are identical.

Q: Are there any package or pinout differences?

A: No. Both the PS2806-4 and PS2806-4-A use the same 16-SOIC (0.173", 4.40mm Width) surface mount package with identical pinout configuration.

Q: Which part should be selected for new applications?

A: Neither part is recommended for new designs. The PS2806-4 is Obsolete, and the PS2806-4-A is designated "Not For New Designs." For new applications, consult current optoisolator product lines with equivalent specifications.

Q: Is the PS2806-4-A suitable for RoHS-compliant applications?

A: Yes. The PS2806-4-A carries ROHS3 compliance certification, making it suitable for applications with RoHS regulatory requirements. The original PS2806-4 is RoHS non-compliant.

Q: What is the current transfer ratio specification?

A: Both parts specify a minimum current transfer ratio of 200% at 1mA input current, ensuring consistent optical coupling efficiency across the 4-channel configuration.

Q: Are the thermal operating ranges identical?

A: Yes. Both the PS2806-4 and PS2806-4-A operate across the identical temperature range of -55°C to 100°C, supporting applications across extended industrial and commercial temperature specifications.