PS9814-2-F4-A Equivalent & Substitute Parts

Part Overview

The PS9814-2-F4-A is a logic output optoisolator manufactured by CEL, featuring 2.5kV isolation voltage, 2 channels with open collector output configuration, and 10Mbps data rate capability. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design support and procurement continuity. The part operates across industrial temperature ranges (-40°C to 85°C) and is suitable for surface mount applications in 8-SSOP packaging.

Substiute Parts

PS9814-2-F4-A

CELIn Stock: 735PS9814-2-F4-A 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

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PS9814-2-F4-A is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Isolation voltage: 2500Vrms
• Number of channels: 2
• Output configuration: Open Collector
• Data rate: 10Mbps
• Output current per channel: 25mA
• Supply voltage range: 4.5V – 5.5V
• Operating temperature range: -40°C to +85°C
• Package type: 8-SSOP
• Mounting type: Surface Mount

Allowable Variation Parameters:

• Common Mode Transient Immunity (CMTI): Substitute parts may exceed the minimum 10kV/µs specification
• Propagation delay: Substitute parts must not exceed the maximum 75ns specification
• Rise/Fall time: Variations permitted within device performance envelope

The identified substitute parts PS9817A-2-AX and PS9817A-2-F3-AX, manufactured by Renesas Electronics Corporation, meet all mandatory matching criteria and represent direct functional equivalents with enhanced CMTI performance (15kV/µs).

Parameter Comparison

Engineering Selection Recommendations

For Existing Designs (Maintenance & Repair): PS9817A-2-F3-AX is the primary substitute for PS9814-2-F4-A. This part carries Active product status, ensuring long-term availability and supply chain stability. It is ROHS3 compliant and REACH unaffected, providing regulatory compliance advantages over the original obsolete component. The enhanced CMTI specification (15kV/µs versus 10kV/µs) and improved fall time (5ns versus 10ns) represent performance improvements without compromising backward compatibility.

For New Designs: PS9817A-2-F3-AX remains the recommended selection due to its Active status and superior compliance profile. The part is available in Cut Tape and Digi-Reel packaging formats, supporting both prototype and production volume requirements.

Secondary Alternative: PS9817A-2-AX (Bulk packaging) provides functional equivalence but carries Not For New Designs status. This part is suitable only for legacy system support where supply continuity is the primary concern.

Compliance Considerations: Both Renesas substitute parts eliminate REACH Affected designation present in the original CEL component, reducing regulatory documentation requirements. ROHS3 compliance certification is provided for both substitutes.

Frequently Asked Questions (FAQ)

Q: Can PS9817A-2-AX and PS9817A-2-F3-AX be used interchangeably with PS9814-2-F4-A?

A: Yes. Both Renesas parts meet all mandatory electrical and mechanical specifications. The primary difference is product status and packaging format. PS9817A-2-F3-AX is recommended for new applications due to Active status. PS9817A-2-AX is suitable for legacy system maintenance.

Q: What is the significance of the higher CMTI specification (15kV/µs) in the substitute parts?

A: The substitute parts exceed the minimum CMTI requirement of 10kV/µs. This represents enhanced performance capability and does not restrict application scope. Designs specified for 10kV/µs CMTI operation are fully compatible with 15kV/µs rated devices.

Q: Are there packaging compatibility concerns when substituting PS9814-2-F4-A?

A: No. All parts use identical 8-SSOP package geometry (8-SOIC, 0.154" width, 3.90mm). PCB footprints and assembly processes require no modification. Packaging format differences (Bulk versus Cut Tape/Digi-Reel) affect procurement and handling only, not electrical or mechanical compatibility.

Q: What is the impact of the improved fall time specification in substitute parts?

A: The substitute parts specify 5ns typical fall time versus 10ns in the original part. This represents improved switching performance and does not create compatibility issues. Designs accommodating 10ns fall time operate correctly with faster 5ns devices.

Q: Why is PS9814-2-F4-A classified as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. Renesas Electronics Corporation substitutes (NEPOC series) provide equivalent functionality with extended product lifecycle support.

Q: Are regulatory certifications equivalent between the original and substitute parts?

A: Both substitute parts provide superior regulatory positioning. ROHS3 compliance and REACH Unaffected status eliminate compliance concerns present in the original REACH Affected component. ECCN and HTSUS classifications remain identical across all three parts.

Q: What inventory considerations apply to these substitutes?

A: PS9817A-2-F3-AX (Active status) provides the most reliable long-term availability. Current inventory levels are 1742 pieces. PS9817A-2-AX (Not For New Designs) shows 1899 pieces but faces potential future discontinuation.