PS9552L3-E3-AX Equivalent & Substitute Parts

Part Overview

The PS9552L3-E3-AX is a 2.5A gate driver optical coupler with 5000Vrms isolation manufactured by CEL in the NEPOC series. This component is rated as obsolete, making the identification of functionally equivalent substitutes necessary for ongoing designs and legacy system support. The device provides single-channel optical isolation suitable for gate driver applications in power conversion circuits.

Substiute Parts

PS9552L3-E3-AX

CELIn Stock: 2458PS9552L3-E3-AX Datasheet

Current PartRFQ

HCNW3120-500E

Broadcom LimitedIn Stock: 20410HCNW3120-500E Datasheet

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VO3120-X007T

Vishay Semiconductor Opto DivisionIn Stock: 16010VO3120-X007T Datasheet

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VO3120-X019T

Vishay Semiconductor Opto DivisionIn Stock: 792VO3120-X019T Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the PS9552L3-E3-AX is determined by electrical and mechanical parameter matching across the following critical specifications:

Core electrical requirements for substitution:

• Number of Channels: 1
• Voltage - Isolation: 5000Vrms (minimum)
• Common Mode Transient Immunity: 25kV/µs (minimum)
• Propagation Delay: 500ns (maximum)
• Pulse Width Distortion: 300ns (maximum)
• Current - Peak Output: 2.5A
• Voltage - Output Supply: 15V ~ 30V range compatibility
• Operating Temperature: -40°C to 100°C minimum

Mechanical requirements for substitution:

• Mounting Type: Surface Mount
• Package / Case: 8-SMD, Gull Wing configuration

All three substitute parts satisfy these core requirements with equal or superior performance characteristics. Two variants (VO3120-X007T and VO3120-X019T) represent the same device in different packaging formats (Cut Tape and Tape & Reel).

Parameter Comparison

Engineering Selection Recommendations

Product Status Considerations:

The HCNW3120-500E (Broadcom Limited) and both VO3120 variants (Vishay Semiconductor Opto Division) are classified as active products, providing ongoing manufacturer support and guaranteed supply. The obsolete status of the PS9552L3-E3-AX necessitates migration to one of these active alternatives for new designs and long-term production support.

Compliance and Certifications:

All substitute parts maintain EAR99 export classification and REACH unaffected status, consistent with the original PS9552L3-E3-AX. The HCNW3120-500E holds CSA, IEC/EN/DIN, and UR approvals. Both VO3120 variants carry cUR and UR certifications, with VO3120-X019T additionally holding VDE approval. Both Broadcom and Vishay parts are ROHS3 compliant, enhancing regulatory alignment for modern manufacturing environments.

Performance Advantages:

The Vishay VO3120 variants (VO3120-X007T and VO3120-X019T) offer improved timing specifications with 400ns maximum propagation delay versus 500ns for the original part, and reduced pulse width distortion of 200ns versus 300ns. These devices also provide higher isolation voltage (5300Vrms versus 5000Vrms) and extended operating temperature range to 110°C, delivering superior performance margins in gate driver applications.

Packaging Availability:

VO3120-X007T is supplied in Cut Tape & Digi-Reel format, while VO3120-X019T uses Tape & Reel packaging. The HCNW3120-500E is similarly available in Cut Tape & Digi-Reel format. Selection between these options should align with production volume and handling equipment capabilities.

Frequently Asked Questions (FAQ)

Q: Can HCNW3120-500E directly replace PS9552L3-E3-AX without circuit modifications?

A: Yes. The HCNW3120-500E matches all electrical specifications of the PS9552L3-E3-AX within equivalent parameters. Both devices provide 5000Vrms isolation, 25kV/µs common mode transient immunity, 500ns propagation delay, 2.5A peak output current, and identical output supply voltage range (15V ~ 30V). Package configuration and pin layout are electrically compatible for direct substitution in existing gate driver circuits.

Q: What are the primary differences between HCNW3120-500E and VO3120 variants?

A: The HCNW3120-500E matches the original PS9552L3-E3-AX in timing specifications (500ns propagation delay, 300ns pulse width distortion). The Vishay VO3120 variants improve upon both with 400ns propagation delay and 200ns pulse width distortion, offering faster switching performance. The VO3120 devices also provide higher isolation voltage (5300Vrms) and extended temperature range (-40°C to 110°C). All three are mechanically compatible 8-SMD Gull Wing packages suitable for surface mount assembly.

Q: Are VO3120-X007T and VO3120-X019T electrically identical?

A: Yes, VO3120-X007T and VO3120-X019T are electrically identical devices with the same performance specifications. The difference is packaging format: VO3120-X007T uses Cut Tape & Digi-Reel, while VO3120-X019T uses Tape & Reel. Selection depends on production volume and automated handling requirements.

Q: What is the significance of the extended temperature range in VO3120 variants?

A: The VO3120 variants operate to 110°C versus 100°C maximum for PS9552L3-E3-AX and HCNW3120-500E. This extended upper temperature limit provides additional thermal margin in applications subject to elevated ambient or component self-heating conditions, reducing the risk of thermal derating or performance degradation at elevated operating points.

Q: Are all substitute parts RoHS compliant?

A: The HCNW3120-500E and both VO3120 variants are ROHS3 compliant. The original PS9552L3-E3-AX RoHS compliance status is not specified in the provided parameters. All substitutes meet modern environmental and manufacturing standards for regulated industries.

Q: How do output current capabilities compare between these devices?

A: The PS9552L3-E3-AX and HCNW3120-500E provide 2A output current (high and low). The VO3120 variants provide 2.5A output current, matching the peak rating. This additional capacity in the Vishay options provides expanded design margins for gate driver load applications without derating considerations.