PS9814-1-A Equivalent & Substitute Parts

Part Overview

The PS9814-1-A is a logic output optoisolator manufactured by CEL, designed for high-voltage isolation applications requiring 2500Vrms isolation rating. This single-channel device operates at 10Mbps data rate with open collector output configuration and 10kV/µs common mode transient immunity. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new procurement requirements.

Substiute Parts

PS9814-1-A

CELIn Stock: 1002PS9814-1-A Datasheet

Current PartRFQ

PS9817A-1-AX

Renesas Electronics CorporationIn Stock: 1283PS9817A-1-AX Datasheet

DirectRFQ

PS9817A-1-F3-AX

Renesas Electronics CorporationIn Stock: 32294PS9817A-1-F3-AX Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PS9814-1-A are identified based on strict electrical and mechanical parameter compatibility. The following criteria define acceptable substitution:

Critical Matching Parameters:

• Single channel configuration (1 input, 0 outputs on side 2)
• 2500Vrms isolation voltage
• Open collector output type
• 10Mbps data rate capability
• 25 mA output current per channel
• 4.5V to 5.5V supply voltage range
• -40°C to 85°C operating temperature
• 8-SOIC surface mount package (0.154", 3.90mm width)

Allowable Parameter Variations:

• Common Mode Transient Immunity (CMTI): Substitute parts with equal or higher CMTI ratings (≥10kV/µs) are acceptable
• Propagation delay and rise/fall time: Specifications within or better than original part parameters
• Forward voltage and DC forward current: Within specified ranges

The identified substitutes PS9817A-1-AX and PS9817A-1-F3-AX meet all critical matching parameters and represent functionally equivalent alternatives from Renesas Electronics Corporation.

Parameter Comparison

Engineering Selection Recommendations

PS9817A-1-F3-AX (Primary Substitute)

PS9817A-1-F3-AX is the recommended substitute for new designs and ongoing procurement. This part maintains full electrical and mechanical compatibility with PS9814-1-A while offering superior product lifecycle status. The device is classified as Active, ensuring long-term availability and manufacturing support. It carries ROHS3 compliance and REACH Unaffected status, meeting current environmental and regulatory requirements. The packaging format (Cut Tape & Digi-Reel) supports both prototype and production volume requirements. Common Mode Transient Immunity is rated at 15kV/µs, exceeding the original specification of 10kV/µs, providing enhanced performance margin in high-noise environments.

PS9817A-1-AX (Secondary Substitute)

PS9817A-1-AX provides functional equivalence with identical electrical specifications to PS9817A-1-F3-AX. Product status is classified as Not For New Designs, limiting its application to legacy system support and replacement scenarios. Bulk packaging format indicates suitability for high-volume procurement. ROHS3 compliance and REACH Unaffected status are maintained. This part is appropriate for sustaining existing production lines where component qualification has already been completed.

Both substitute parts demonstrate improved fall time performance (5ns versus 10ns) compared to the original PS9814-1-A, resulting in faster output switching characteristics while maintaining all other timing specifications.

Frequently Asked Questions (FAQ)

Q: Can PS9817A-1-AX and PS9817A-1-F3-AX be used interchangeably with PS9814-1-A?

A: Yes. Both Renesas parts are electrically and mechanically equivalent to PS9814-1-A. The primary difference is packaging format and product lifecycle status. PS9817A-1-F3-AX is recommended for new designs due to Active status. PS9817A-1-AX is suitable for legacy system support.

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

A: The substitute parts feature 15kV/µs Common Mode Transient Immunity compared to 10kV/µs in the original part. This represents improved performance margin and enhanced noise immunity in applications with high-speed common mode voltage transitions. Systems designed for the original 10kV/µs specification will operate within the improved performance envelope of the substitute parts.

Q: Are there packaging compatibility considerations?

A: Both substitute parts use identical 8-SOIC (0.154", 3.90mm Width) surface mount packages. PCB footprints, solder reflow profiles, and assembly processes remain unchanged. No design modifications are required for package compatibility.

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

A: Cut Tape & Digi-Reel packaging (PS9817A-1-F3-AX) is standard for component distribution and supports both prototype and production quantities. Bulk packaging (PS9817A-1-AX) is typically used for high-volume direct procurement. Both formats contain identical components; packaging format selection depends on procurement volume and supply chain requirements.

Q: Are the substitute parts RoHS and REACH compliant?

A: Yes. Both PS9817A-1-AX and PS9817A-1-F3-AX are ROHS3 Compliant and REACH Unaffected. The original PS9814-1-A is marked as REACH Affected. Substitution with Renesas parts resolves REACH compliance status for new procurement.

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

A: PS9817A-1-F3-AX has 32,200 pieces in stock. PS9817A-1-AX has 1,237 pieces in stock. Both parts demonstrate strong availability for immediate procurement.