PS9817A-2-F3-AX Equivalent & Substitute Parts

Part Overview

The PS9817A-2-F3-AX is a logic output optoisolator manufactured by Renesas Electronics Corporation (formerly CEL), belonging to the NEPOC series. This 2-channel, 2500Vrms isolation device features open collector outputs with 10Mbps data rate capability and 15kV/µs common mode transient immunity. The part is currently listed as Active product status with Cut Tape (CT) & Digi-Reel® packaging.

Identification of equivalent and substitute parts is necessary due to supply chain considerations, packaging format requirements, and performance optimization for specific application parameters. The PS9817A-2-F3-AX has been discontinued at DiGi Electronics, making substitute identification critical for design continuity and procurement planning.

Substiute Parts

PS9817A-2-F3-AX

CELIn Stock: 1767PS9817A-2-F3-AX Datasheet

Current PartRFQ

PS9817A-2-AX

Renesas Electronics CorporationIn Stock: 1949PS9817A-2-AX Datasheet

DirectRFQ

PS9817A-2-F3-AX

Renesas Electronics CorporationIn Stock: 1801PS9817A-2-F3-AX Datasheet

DirectRFQ

PS9821-2-AX

Renesas Electronics CorporationIn Stock: 2249PS9821-2-AX Datasheet

SimilarRFQ

PS9821-2-F3-AX

Renesas Electronics CorporationIn Stock: 1505PS9821-2-F3-AX Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PS9817A-2-F3-AX are classified into two categories based on electrical and mechanical compatibility:

Direct Equivalents (Identical Electrical Specifications): Direct equivalents maintain all critical electrical parameters: 2500Vrms isolation voltage, 15kV/µs CMTI, 2-channel configuration, open collector output, 10Mbps data rate, 25mA output current per channel, and 4.5V–5.5V supply voltage range. These parts differ only in packaging format (Bulk vs. Cut Tape & Digi-Reel®) or product status designation.

Similar Substitutes (Enhanced Performance Parameters): Similar substitutes share the core isolation architecture, channel count, output type, and package form factor but feature enhanced data rate performance (15Mbps vs. 10Mbps) and modified supply voltage range (2.7V–3.6V vs. 4.5V–5.5V). These parts are electrically compatible in applications where the lower supply voltage and higher data rate do not create design conflicts.

Key Parameters Determining Substitution Eligibility:

• Voltage - Isolation: 2500Vrms (fixed requirement)
• Number of Channels: 2 (fixed requirement)
• Output Type: Open Collector (fixed requirement)
• Common Mode Transient Immunity: 15kV/µs (fixed requirement)
• Package / Case: 8-SOIC (0.154", 3.90mm Width) (fixed requirement)
• Supplier Device Package: 8-SSOP (fixed requirement)
• Operating Temperature: -40°C ~ 85°C (fixed requirement)

Parameter Comparison

Engineering Selection Recommendations

PS9817A-2-AX (Direct Equivalent - Bulk Packaging): This part is electrically identical to the PS9817A-2-F3-AX with matching 10Mbps data rate and 4.5V–5.5V supply voltage specifications. The primary difference is packaging format (Bulk vs. Cut Tape & Digi-Reel®). Product status is listed as "Not For New Designs," indicating this variant is in end-of-life phase. Selection of this part is appropriate only for legacy system maintenance or when bulk packaging format is required and design freeze conditions permit use of non-active status components.

PS9821-2-F3-AX (Similar Substitute - Enhanced Performance): This part maintains identical isolation voltage, channel count, output type, CMTI rating, and physical package dimensions. The PS9821-2-F3-AX features 15Mbps data rate (vs. 10Mbps) and operates on 2.7V–3.6V supply voltage (vs. 4.5V–5.5V). Product status is Active with Cut Tape & Digi-Reel® packaging. This part is suitable for applications where the lower supply voltage range is compatible with system design and the higher data rate provides performance margin. Verify that output loading and timing requirements are satisfied within the 2.7V–3.6V supply range.

PS9821-2-AX (Similar Substitute - Bulk Packaging): This part is electrically equivalent to PS9821-2-F3-AX with 15Mbps data rate and 2.7V–3.6V supply voltage. Packaging format is Bulk. Product status is Active. Selection is appropriate when bulk packaging is required and the lower supply voltage specification is compatible with system architecture.

Primary Recommendation: For direct replacement of the discontinued PS9817A-2-F3-AX, use PS9817A-2-AX if bulk packaging is acceptable and product status constraints are satisfied. For new designs or systems requiring active product status, use PS9821-2-F3-AX with verification that the 2.7V–3.6V supply voltage and 15Mbps data rate are compatible with application requirements.

Frequently Asked Questions (FAQ)

Q: Can PS9821-2-F3-AX be used as a direct replacement for PS9817A-2-F3-AX?

A: PS9821-2-F3-AX is electrically compatible in applications where the supply voltage range 2.7V–3.6V is supported by the system design. The higher data rate (15Mbps vs. 10Mbps) is backward compatible. However, the lower supply voltage specification must be verified against system power supply capabilities and output loading conditions before implementation.

Q: What is the difference between Cut Tape (CT) & Digi-Reel® packaging and Bulk packaging?

A: Cut Tape (CT) & Digi-Reel® packaging provides components on continuous tape suitable for automated pick-and-place assembly equipment. Bulk packaging provides loose components in trays or tubes. Selection depends on manufacturing process requirements and assembly equipment compatibility. Both packaging formats contain identical electrical components.

Q: Why is PS9817A-2-AX listed as "Not For New Designs"?

A: "Not For New Designs" status indicates the manufacturer has transitioned this product variant to end-of-life phase. While the component remains functional and available in inventory, Renesas Electronics Corporation recommends using active status alternatives for new product development. Existing designs may continue using this part for maintenance and production support.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed—PS9817A-2-F3-AX, PS9817A-2-AX, PS9821-2-F3-AX, and PS9821-2-AX—are ROHS3 compliant and carry Moisture Sensitivity Level 1 (Unlimited) rating, indicating no special moisture handling requirements during storage or assembly.

Q: What are the critical parameters that must remain constant for substitution?

A: The following parameters must remain constant for electrical and mechanical compatibility: Voltage - Isolation (2500Vrms), Number of Channels (2), Output Type (Open Collector), Common Mode Transient Immunity (15kV/µs), Package / Case (8-SOIC 0.154" width), Supplier Device Package (8-SSOP), and Operating Temperature Range (-40°C ~ 85°C). Data rate and supply voltage may vary within application constraints.

Q: Can PS9821 series parts operate at 5V supply voltage?

A: No. PS9821-2-F3-AX and PS9821-2-AX are specified for 2.7V–3.6V supply voltage range. Operation outside this range is not supported. For 5V supply applications, use PS9817A-2-F3-AX or PS9817A-2-AX, which are specified for 4.5V–5.5V supply voltage.

Q: What inventory levels are available for each substitute part?

A: Current inventory levels are: PS9817A-2-F3-AX (1742 Pcs), PS9817A-2-AX (1899 Pcs), PS9821-2-F3-AX (1446 Pcs), and PS9821-2-AX (2200 Pcs). Inventory levels are subject to change and should be confirmed with the supplier for procurement planning.