PS2811-1-V-L-A Optoisolator Equivalent & Substitute Parts

Part Overview

The PS2811-1-V-L-A is an optoisolator with transistor output rated for 2500Vrms isolation voltage, featuring a single channel in 4-SOIC surface mount packaging. This component is currently discontinued at DiGi Electronics, necessitating identification of compatible substitute parts that maintain electrical and mechanical compatibility for system integration and design continuity.

Substiute Parts

PS2811-1-V-L-A

CELIn Stock: 1152PS2811-1-V-L-A Datasheet

Current PartRFQ

PS2811-1-V-A

Renesas Electronics CorporationIn Stock: 2376PS2811-1-V-A Datasheet

DirectRFQ

PS2811-1-V-F3-A

Renesas Electronics CorporationIn Stock: 7980PS2811-1-V-F3-A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the PS2811-1-V-L-A is determined by strict alignment across the following critical parameters:

• Isolation Voltage: 2500Vrms (exact match required)
• Number of Channels: 1 (single channel configuration)
• Output Type: Transistor (photodarlington output structure)
• Package/Case: 4-SOIC (0.173", 4.40mm Width) with 4-SSOP supplier designation
• Output Ratings: Maximum 40V and 40mA per channel
• Operating Temperature Range: −55°C to 100°C
• Electrical Characteristics: Vce Saturation ≤ 300mV, Forward Voltage 1.15V, Maximum Forward Current 50mA

The substitute parts PS2811-1-V-A and PS2811-1-V-F3-A meet these criteria. Variations in Current Transfer Ratio specification (100–400% for substitutes versus 150–300% for the main part) remain within acceptable operating bounds for typical DC input isolation applications.

Parameter Comparison

Engineering Selection Recommendations

Both PS2811-1-V-A and PS2811-1-V-F3-A are fully compatible substitutes for the PS2811-1-V-L-A. Both alternatives are manufactured by Renesas Electronics Corporation with active product status, ensuring long-term supply chain continuity and ongoing technical support.

PS2811-1-V-A is supplied in Strip packaging format, suitable for manual assembly and lower-volume applications.

PS2811-1-V-F3-A is supplied in Tape & Reel format and is recommended for automated assembly processes and higher-volume production environments. This variant carries the NEPOC series designation matching the original part's classification.

Both substitutes demonstrate ROHS3 compliance and unlimited moisture sensitivity ratings, maintaining regulatory alignment with the original component. Selection between the two substitutes should be based on required packaging format and production methodology.

Frequently Asked Questions (FAQ)

Q: Can PS2811-1-V-A and PS2811-1-V-F3-A be used interchangeably with PS2811-1-V-L-A?

A: Yes. Both substitutes share identical electrical specifications for isolation voltage, output ratings, operating temperature range, and package dimensions. Differences in Current Transfer Ratio specification ranges (100–400% versus 150–300%) do not impact functional compatibility in DC input isolation circuits.

Q: What is the difference between the two substitute parts?

A: The primary distinction is packaging format. PS2811-1-V-A uses Strip packaging for manual handling and lower-volume applications. PS2811-1-V-F3-A uses Tape & Reel packaging optimized for automated pick-and-place assembly and production volumes. Electrical specifications are identical.

Q: Is the 4-SOIC package mechanically compatible with the original component's footprint?

A: Yes. All three parts use identical 4-SOIC packaging with 0.173" width (4.40mm), ensuring direct PCB footprint compatibility without layout modifications.

Q: Are there REACH compliance considerations?

A: The main part (PS2811-1-V-L-A) is REACH Affected. Both substitutes are REACH Unaffected, which may provide regulatory advantages depending on application jurisdiction.

Q: What inventory considerations apply to part selection?

A: PS2811-1-V-F3-A has the highest inventory availability at 7947 pieces, followed by PS2811-1-V-A at 2310 pieces. If supply chain continuity is a priority, PS2811-1-V-F3-A is recommended based on current stock levels.