PS2811-4-A Optoisolator: Equivalent & Substitute Parts

Part Overview

The PS2811-4-A is a 4-channel optoisolator with transistor output, rated for 2500Vrms isolation voltage. This component is designed for applications requiring galvanic isolation with DC input and transistor output configuration. The PS2811-4-A is discontinued at DiGi Electronics, necessitating identification of functionally equivalent substitute parts for ongoing design support and procurement.

Substiute Parts

PS2811-4-A

CELIn Stock: 1113PS2811-4-A Datasheet

Current PartRFQ

PS2811-4-F3-A

Renesas Electronics CorporationIn Stock: 13797PS2811-4-F3-A Datasheet

SimilarRFQ

PS2811-4-V-F3-A

Renesas Electronics CorporationIn Stock: 3260PS2811-4-V-F3-A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PS2811-4-A are identified based on strict electrical and mechanical parameter equivalence. The following criteria determine substitutability:

Electrical Parameters (Must Match):

• Number of Channels: 4
• Voltage - Isolation: 2500Vrms
• Current Transfer Ratio range: 100% to 400% @ 1mA
• Rise / Fall Time: 4µs, 5µs
• Input Type: DC
• Output Type: Transistor
• Voltage - Output (Max): 40V
• Current - Output / Channel: 40mA
• Vce Saturation (Max): 300mV
• Operating Temperature: -55°C ~ 100°C

Mechanical Parameters (Must Match):

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

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The identified substitute parts PS2811-4-F3-A and PS2811-4-V-F3-A meet all electrical and mechanical requirements. Differences exist only in packaging format (Cut Tape vs. Tape & Reel) and product status (Active vs. Discontinued).

Parameter Comparison

Engineering Selection Recommendations

Both PS2811-4-F3-A and PS2811-4-V-F3-A are direct electrical and mechanical equivalents to the PS2811-4-A. Selection between these substitutes is determined by procurement and assembly requirements:

PS2811-4-F3-A (Cut Tape Packaging): Suitable for applications requiring individual component handling or lower-volume production runs. This variant is manufactured by Renesas Electronics Corporation and maintains active product status.

PS2811-4-V-F3-A (Tape & Reel Packaging): Suitable for high-volume automated assembly operations. This variant is also manufactured by Renesas Electronics Corporation and maintains active product status.

Both substitute parts are ROHS3 compliant with MSL rating of 1 (Unlimited), matching the compliance profile of the original PS2811-4-A. The substitutes carry REACH Unaffected status, providing regulatory advantage over the original part's REACH Affected designation.

Frequently Asked Questions (FAQ)

Q: Can PS2811-4-F3-A and PS2811-4-V-F3-A be used interchangeably with PS2811-4-A?

A: Yes. Both substitute parts meet all electrical and mechanical specifications of the PS2811-4-A. The difference between them is packaging format only: Cut Tape versus Tape & Reel. Selection depends on assembly process requirements, not functional performance.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Cut Tape (CT) packaging provides individual component strips suitable for manual or semi-automated assembly. Tape & Reel (TR) packaging provides continuous reels optimized for high-speed automated pick-and-place equipment. Both formats contain identical components in 16-SOIC packages.

Q: Are there any compliance differences between the main part and substitutes?

A: The substitute parts (PS2811-4-F3-A and PS2811-4-V-F3-A) carry REACH Unaffected status, whereas the original PS2811-4-A is REACH Affected. Both substitutes maintain ROHS3 compliance and MSL 1 rating identical to the original part.

Q: Does the manufacturer change from CEL to Renesas Electronics Corporation affect compatibility?

A: No. The electrical and mechanical specifications are identical. Renesas Electronics Corporation manufactures the substitute parts to the same NEPOC series specifications as the original PS2811-4-A.

Q: What is the inventory status of these substitute parts?

A: PS2811-4-F3-A has 13,700 units in stock. PS2811-4-V-F3-A has 3,215 units in stock. Both are active products with ongoing availability, unlike the discontinued PS2811-4-A.

Q: Can these parts be used in existing PCB designs without modification?

A: Yes. All three parts use identical 16-SOIC (0.173", 4.40mm Width) surface mount packages. PCB footprints and assembly processes require no changes.