PS2802-1-F3-K-A Optoisolator - Equivalent & Substitute Parts

Part Overview

The PS2802-1-F3-K-A is a 2500Vrms isolation optoisolator with Darlington output configuration, housed in a 4-SOIC surface mount package. This component is discontinued at DiGi Electronics, necessitating identification of functional equivalent parts for ongoing design support and inventory management. The part operates across -55°C to 100°C and provides 90mA output current with 1V maximum saturation voltage.

Substiute Parts

PS2802-1-F3-K-A

CELIn Stock: 797PS2802-1-F3-K-A Datasheet

Current PartRFQ

PS2802-1-A

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

DirectRFQ

PS2802-1-F3-A

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

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS2802-1-F3-K-A is determined by matching the following critical electrical and mechanical parameters:

• Voltage - Isolation: 2500Vrms (determines safety isolation capability)
• Output Type: Darlington (defines output stage architecture)
• Number of Channels: 1 (functional requirement)
• Voltage - Output (Max): 40V (maximum blocking voltage)
• Current - Output / Channel: 90mA (load drive capability)
• Vce Saturation (Max): 1V (output impedance specification)
• Package / Case: 4-SOIC (physical and pinout compatibility)
• Operating Temperature Range: -55°C ~ 100°C (environmental capability)
• Input Type: DC (input signal classification)

The substitute parts identified below maintain equivalence across these parameters while differing in Current Transfer Ratio (200% vs 2000%), packaging format, and product lifecycle status.

Parameter Comparison

Engineering Selection Recommendations

PS2802-1-F3-A is the recommended substitute for new designs and current production applications. This part is designated as Active product status, ensuring ongoing manufacturer support and availability. It maintains full electrical and mechanical equivalence to the PS2802-1-F3-K-A across all critical parameters while being available in standard Cut Tape and Digi-Reel packaging formats, with 26,499 units currently in inventory.

PS2802-1-A is an alternative substitute suitable for legacy production or where existing inventory constraints exist. This part is classified as Not For New Designs, indicating historical support only. Current inventory of 1,772 units is available in Strip packaging format.

Both substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, identical to the original part specification.

Frequently Asked Questions (FAQ)

Q: Can PS2802-1-F3-A be used as a direct replacement for PS2802-1-F3-K-A in existing designs? A: Yes. Both parts are electrically and mechanically equivalent across all specified parameters including isolation voltage (2500Vrms), output current (90mA), saturation voltage (1V), and package configuration (4-SOIC). The primary difference is the manufacturer transition from CEL to Renesas Electronics Corporation and product lifecycle status change from Discontinued to Active.

Q: What is the significance of the Current Transfer Ratio difference (2000% vs 200%)? A: The PS2802-1-F3-K-A exhibits a Current Transfer Ratio of 2000% @ 1mA, while substitute parts PS2802-1-A and PS2802-1-F3-A specify 200% @ 1mA. Both ratios fall within acceptable operating parameters for Darlington optoisolator applications where the output transistor is biased toward saturation. The original specification may reflect more stringent incoming acceptance criteria.

Q: Is packaging format (Strip vs Cut Tape) important for substitution? A: Packaging format affects supply chain and manufacturing automation compatibility but not electrical or mechanical performance. PS2802-1-F3-A is available in standard Cut Tape and Digi-Reel formats suitable for automated board assembly. PS2802-1-A is supplied in Strip format. Selection should be based on assembly equipment compatibility and minimum order quantity requirements.

Q: Why is PS2802-1-F3-A preferred over PS2802-1-A? A: PS2802-1-F3-A carries Active product status from Renesas Electronics Corporation, ensuring continued manufacturing and technical support. PS2802-1-A is designated Not For New Designs, indicating end-of-life support phase. For ongoing production and new applications, PS2802-1-F3-A provides superior supply chain reliability and lifecycle support.

Q: Are there any compliance or certification considerations when substituting this part? A: Both substitute parts maintain identical RoHS3 compliance, REACH Unaffected status, and MSL 1 (Unlimited) ratings. Both parts share the same ECCN (EAR99) and HTSUS (8541.49.8000) classifications as the original part.