PS9552L2-E3-AX Equivalent & Substitute Parts

Part Overview

The PS9552L2-E3-AX is a 2.5A gate driver optical coupler manufactured by CEL, designed for high-voltage isolation applications requiring 5000Vrms isolation rating. This component belongs to the NEPOC series and is classified as obsolete. Due to its obsolete status, identifying equivalent substitute parts with compatible electrical and mechanical specifications is essential for design continuity and procurement planning.

Substiute Parts

PS9552L2-E3-AX

CELIn Stock: 891PS9552L2-E3-AX Datasheet

Current PartRFQ

VO3120-X007T

Vishay Semiconductor Opto DivisionIn Stock: 16010VO3120-X007T Datasheet

SimilarRFQ

VO3120-X019T

Vishay Semiconductor Opto DivisionIn Stock: 792VO3120-X019T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PS9552L2-E3-AX are identified based on the following critical parameters that determine functional compatibility:

Isolation Voltage: The main part specifies 5000Vrms isolation. Substitute parts must meet or exceed this requirement. The identified substitutes (VO3120-X007T and VO3120-X019T) provide 5300Vrms isolation, which exceeds the minimum requirement.

Channel Configuration: Single-channel gate driver topology is maintained across all substitute parts.

Common Mode Transient Immunity: All parts maintain 25kV/µs minimum CMTI, a critical parameter for gate driver applications.

Output Current Capability: The main part delivers 2A continuous output current with 2.5A peak capability. Substitute parts deliver 2.5A continuous output current, providing equal or superior performance.

Output Supply Voltage Range: The main part operates with 15V ~ 30V supply. Substitute parts support 15V ~ 32V, which encompasses the original specification.

Mounting and Package: All parts use 8-SMD Gull Wing surface mount packaging, ensuring mechanical and footprint compatibility.

Propagation Delay and Pulse Width Distortion: Substitute parts exhibit improved timing characteristics (400ns vs 500ns propagation delay; 200ns vs 300ns PWD), which are backward-compatible improvements.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: VO3120-X007T

The VO3120-X007T is an active product from Vishay Semiconductor Opto Division with full compliance to ROHS3 standards. This part meets all electrical requirements of the PS9552L2-E3-AX while providing enhanced performance characteristics. The 5300Vrms isolation rating exceeds the original 5000Vrms specification. Output current capability is improved to 2.5A continuous (versus 2A in the original). Propagation delay is reduced to 400ns, and pulse width distortion is improved to 200ns. Operating temperature range extends to 110°C. Packaging is identical (8-SMD Gull Wing). Approval agencies include cUR and UR certifications. Packaging format is Cut Tape (CT) & Digi-Reel®.

Secondary Substitute: VO3120-X019T

The VO3120-X019T is functionally equivalent to VO3120-X007T with identical electrical specifications and active product status. The primary distinction is packaging format: Tape & Reel (TR) versus Cut Tape. This part includes additional VDE certification. Selection between VO3120-X007T and VO3120-X019T depends on procurement volume and supply chain requirements rather than electrical performance.

Compliance Considerations

Both Vishay substitutes are ROHS3 compliant and REACH unaffected, meeting modern regulatory requirements. The original PS9552L2-E3-AX carries BSI, CSA, DEMKO, FIMKO, NEMKO, SEMKO, and UL approvals. Vishay substitutes carry cUR and UR certifications (VO3120-X019T adds VDE). Design validation should confirm that the substitute certifications satisfy application-specific regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can VO3120-X007T or VO3120-X019T directly replace PS9552L2-E3-AX in existing designs?

A: Yes. Both Vishay parts meet or exceed all critical electrical parameters: isolation voltage (5300Vrms vs 5000Vrms), output current (2.5A continuous vs 2A), common mode transient immunity (25kV/µs), and operating temperature range (-40°C to 110°C vs -40°C to 100°C). Package and pinout are identical (8-SMD Gull Wing). No circuit modifications are required.

Q: What are the performance improvements offered by the Vishay substitutes?

A: The VO3120 series provides reduced propagation delay (400ns versus 500ns), improved pulse width distortion (200ns versus 300ns), higher continuous output current (2.5A versus 2A), and extended operating temperature range (110°C versus 100°C maximum). These represent backward-compatible enhancements suitable for gate driver applications.

Q: What is the difference between VO3120-X007T and VO3120-X019T?

A: Both parts are electrically identical with the same specifications and performance characteristics. The difference is packaging format: VO3120-X007T is supplied in Cut Tape (CT) & Digi-Reel® format, while VO3120-X019T is supplied in Tape & Reel (TR) format. VO3120-X019T includes additional VDE certification. Selection depends on procurement volume and supply chain logistics.

Q: Are the substitute parts currently available?

A: Yes. VO3120-X007T has 15,931 pieces in stock, and VO3120-X019T has 687 pieces in stock, both as new original inventory. The original PS9552L2-E3-AX is obsolete with 826 pieces remaining in stock.

Q: Do the substitute parts require different handling or storage procedures?

A: No. All parts share identical Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no special moisture control requirements during storage or handling.

Q: What certifications should be verified for my specific application?

A: The PS9552L2-E3-AX carries BSI, CSA, DEMKO, FIMKO, NEMKO, SEMKO, and UL approvals. VO3120-X007T carries cUR and UR certifications. VO3120-X019T carries cUR, UR, and VDE certifications. Confirm that the substitute part's certification portfolio meets your application's regulatory requirements before design release.