PS9851-2-F3-AX Equivalent & Substitute Parts

Part Overview

The PS9851-2-F3-AX is a logic output optoisolator manufactured by Renesas Electronics Corporation, part of the NEPOC series. This 2-channel, 2500Vrms isolation device features push-pull totem pole output configuration with 15Mbps data rate capability and 10kV/µs common mode transient immunity. The device is housed in an 8-SSOP surface mount package and operates across the -40°C to 100°C temperature range.

The PS9851-2-F3-AX maintains Active product status with Tape & Reel packaging. Equivalent and substitute parts are necessary for design flexibility, supply chain continuity, and packaging format selection when the primary part number becomes unavailable or when alternative packaging configurations are required for manufacturing processes.

Substiute Parts

PS9851-2-F3-AX

CELIn Stock: 8966PS9851-2-F3-AX Datasheet

Current PartRFQ

PS9851-2-AX

Renesas Electronics CorporationIn Stock: 818PS9851-2-AX Datasheet

DirectRFQ

PS9851-2-F3-AX

Renesas Electronics CorporationIn Stock: 8956PS9851-2-F3-AX Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PS9851-2-F3-AX is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• 2 channels with 2 inputs on Side 1 and 0 inputs on Side 2
• 2500Vrms isolation voltage
• 10kV/µs minimum common mode transient immunity
• DC input type with push-pull totem pole output configuration
• 15Mbps data rate
• 60ns maximum propagation delay (both tpLH and tpHL)
• 4.5V to 5.5V supply voltage range
• -40°C to 100°C operating temperature range

Mechanical Equivalence Requirements:

• 8-SSOP supplier device package
• 8-SOIC (0.154", 3.90mm Width) package case
• Surface mount mounting type

Compliance Requirements:

• ROHS3 compliance
• Moisture Sensitivity Level 1 (Unlimited)
• REACH Unaffected status

Substitute parts must match all electrical parameters, mechanical specifications, and compliance certifications. Packaging format (Bulk versus Tape & Reel) represents the only allowable variation between equivalent parts.

Parameter Comparison

Engineering Selection Recommendations

PS9851-2-AX (Bulk Packaging): The PS9851-2-AX is electrically and mechanically equivalent to the PS9851-2-F3-AX across all critical parameters. This part carries "Not For New Designs" product status, indicating it is in mature or end-of-life phase. Selection of this substitute is appropriate only for replacement, repair, or legacy system maintenance where new design qualification is not required. The Bulk packaging format differs from the Tape & Reel format of the primary part, necessitating process adjustment for automated assembly operations.

PS9851-2-F3-AX (Renesas - Tape & Reel): This part number represents the current Active production equivalent manufactured by Renesas Electronics Corporation. It maintains identical electrical specifications and mechanical compatibility with the primary PS9851-2-F3-AX part while offering Tape & Reel packaging suitable for high-volume automated assembly. This part is the preferred selection for new designs and ongoing production requiring continuous supply.

Both substitute options satisfy ROHS3 compliance, REACH unaffected status, and unlimited moisture sensitivity level requirements. Selection between them depends on product lifecycle phase and packaging format compatibility with manufacturing processes.

Frequently Asked Questions (FAQ)

Q: Can PS9851-2-AX be used as a direct replacement for PS9851-2-F3-AX in production assembly?

A: PS9851-2-AX is electrically and mechanically equivalent to PS9851-2-F3-AX. However, the Bulk packaging format requires manual handling and reel conversion, whereas PS9851-2-F3-AX uses Tape & Reel format compatible with automated pick-and-place equipment. Process modification is necessary for assembly line integration.

Q: What is the significance of "Not For New Designs" status on PS9851-2-AX?

A: This designation indicates the part is in mature or end-of-life phase. While functionally equivalent, it is not recommended for new product development. Use PS9851-2-AX only for legacy system support, repair, or replacement applications where design qualification has already been completed.

Q: Are all three part numbers pin-compatible?

A: Yes. All three part numbers use the 8-SSOP supplier device package with 8-SOIC (0.154", 3.90mm Width) case specification. Pin configuration and footprint are identical across all variants.

Q: What packaging formats are available for PS9851 optoisolators?

A: The PS9851-2-F3-AX is supplied in Tape & Reel (TR) format for automated assembly. The PS9851-2-AX is supplied in Bulk format for manual handling. Both formats contain electrically identical components.

Q: Do all substitute parts meet the same compliance requirements?

A: Yes. All listed parts are ROHS3 compliant, REACH unaffected, and carry Moisture Sensitivity Level 1 (Unlimited). Compliance certifications are identical across all variants.

Q: What are the critical electrical parameters that must match for substitution?

A: Substitution requires matching: 2500Vrms isolation voltage, 10kV/µs common mode transient immunity, 15Mbps data rate, 60ns maximum propagation delay, 4.5V to 5.5V supply voltage, and -40°C to 100°C operating temperature range. All listed substitutes meet these requirements.

Q: Can PS9851-2-F3-AX be used in applications requiring high-speed digital isolation?

A: Yes. The 15Mbps data rate and 60ns propagation delay support high-speed digital isolation applications. The 10kV/µs common mode transient immunity provides robust performance in switching power supply and motor control environments.