NCP1091DBRG Equivalent & Substitute Parts

Part Overview

The NCP1091DBRG is a Power Over Ethernet (PoE) Controller designed for 802.3af compliant applications. This single-channel controller integrates internal switching functionality and auxiliary sense capabilities, operating across a 0V to 57V supply voltage range with a maximum power delivery of 12.95W. The device is housed in an 8-TSSOP package and is currently in Active product status with full ROHS3 compliance.

Substitute parts become necessary when the original packaging format (Tape & Reel) is unavailable, when alternative package geometries are required for specific PCB layouts, or when inventory constraints necessitate alternative sourcing from the same manufacturer's product line.

Substiute Parts

NCP1091DBRG

onsemiIn Stock: 826NCP1091DBRG Datasheet

Current PartRFQ

NCP1092DG

onsemiIn Stock: 908NCP1092DG Datasheet

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NCP1092DRG

onsemiIn Stock: 2093NCP1092DRG Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the NCP1091DBRG is determined by strict equivalence across the following core parameters:

• Single-channel PoE controller architecture
• 802.3af standard compliance
• 12.95W maximum power delivery
• Internal switching and auxiliary sense functionality
• 0V to 57V supply voltage range
• -40°C to 85°C operating temperature
• Surface mount technology
• HIPO™ series designation
• ROHS3 compliance and MSL 2 rating

The substitute parts NCP1092DG and NCP1092DRG maintain functional and electrical equivalence to the NCP1091DBRG across all critical parameters. The primary differences are limited to package geometry (8-SOIC versus 8-TSSOP) and packaging format (Bulk or Tape & Reel), which do not affect circuit-level performance or electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The NCP1091DBRG maintains Active product status with full availability and ongoing manufacturer support. Both substitute parts (NCP1092DG and NCP1092DRG) are designated as Last Time Buy, indicating limited future availability.

For new designs and long-term production requirements, the NCP1091DBRG is the preferred selection due to its Active status and continued manufacturer commitment.

The NCP1092DRG (Tape & Reel packaging) is the most direct substitute when the NCP1091DBRG is unavailable, as it maintains identical packaging format while offering equivalent electrical performance. The NCP1092DG (Bulk packaging) serves as an alternative when tape and reel format is not required.

All three parts maintain identical compliance certifications (ROHS3, MSL 2) and electrical specifications, ensuring functional interchangeability within the constraints of package geometry and PCB layout requirements.

Frequently Asked Questions (FAQ)

Q: Can NCP1092DG and NCP1092DRG be used interchangeably with NCP1091DBRG?

A: Both NCP1092 variants are electrically equivalent to the NCP1091DBRG across all functional parameters. The primary consideration is package geometry: the NCP1092 series uses 8-SOIC packaging (0.154" width) compared to the NCP1091's 8-TSSOP packaging (0.173" width). PCB layout and footprint compatibility must be verified before substitution.

Q: What is the difference between NCP1092DG and NCP1092DRG?

A: Both parts are identical in electrical specifications and package geometry (8-SOIC). The difference is packaging format: NCP1092DG is supplied in Bulk format, while NCP1092DRG is supplied in Tape & Reel format. Selection depends on assembly process requirements and inventory management practices.

Q: Are there any compliance or certification differences between these parts?

A: No. All three parts (NCP1091DBRG, NCP1092DG, and NCP1092DRG) maintain identical ROHS3 compliance, MSL 2 rating, and 802.3af PoE standard certification.

Q: Why are the NCP1092 variants marked as Last Time Buy?

A: Last Time Buy status indicates that onsemi has announced end-of-life for these products. The NCP1091DBRG remains in Active status and is the recommended choice for new designs requiring long-term availability.

Q: What are the pin-to-pin compatibility considerations?

A: While both package types are 8-pin surface mount devices with equivalent electrical functionality, the physical footprint differs. The 8-SOIC package is narrower (3.90mm) than the 8-TSSOP package (4.40mm). PCB layout modifications may be required for substitution.