Power over Ethernet Controllers
Power over Ethernet (PoE) controller ICs enable power delivery through standard Ethernet cabling (IEEE 802.3af/at/bt) for IP cameras, VoIP phones, wireless access points, and IoT sensors. This includes both PSE (power sourcing) and PD (powered device) controllers from TI, ADI, Microchip, and STMicroelectronics.
Product Series & Base Models
Navigate by model series to compare ordering variants and technical specifications within the Power over Ethernet Controllers family.
Browse Power over Ethernet Controllers Products
| PART NUMBER | MANUFACTURER | DESCRIPTION | STOCK | QTY / ACTION |
|---|---|---|---|---|
| LTC4274CUHF#TRPBF | Analog Devices | — | 1,338 | |
| LTC4274AIUHF-4#TRPBF | Analog Devices | — | 34,505 | |
| LTC4274AIUHF-4#PBF | Analog Devices | — | 1,766 | |
| LTC4274AIUHF-3#PBF | Analog Devices | — | 40,344 | |
| LTC4274CIUHF#TRPBF | Analog Devices | — | 1,071 | |
| LTC4274AIUHF-2#TRPBF | Analog Devices | — | 2,671 | |
| LTC4274AIUHF-3#TRPBF | Analog Devices | — | 2,207 | |
| LTC4274AIUHF-2#PBF | Analog Devices | — | 4,992 | |
| LTC4274AIUHF-1#TRPBF | Analog Devices | — | 1,101 | |
| LTC4269IDKD-2#PBF | Analog Devices | — | 4,761 |
How to Choose Power over Ethernet Controllers
A practical selection framework for Power over Ethernet Controllers covering specifications, packaging, lifecycle, and sourcing on Octatronics.
Define electrical and environmental requirements
Start with the required function and operating conditions for Power over Ethernet Controllers, then lock in critical parameters such as input/output voltage, current capacity, quiescent current, and thermal limits. Match these against datasheet limits, not catalog summaries alone.
Validate package and land pattern compatibility
Confirm the Power over Ethernet Controllers package matches your PCB footprint, pick-and-place constraints, and moisture sensitivity handling. Verify reel/tape or tube packaging for production.
Check lifecycle, compliance, and alternates
Review lifecycle status (Active, NRND, EOL), RoHS, and approved alternate sources for Power over Ethernet Controllers before committing to high-volume builds. Use Octatronics cross-reference data when a drop-in replacement is needed.
Compare manufacturers and request pricing
Filter Power over Ethernet Controllers by manufacturers such as onsemi and Microchip Technology, compare key specs side by side, then submit an RFQ with quantity, target delivery, and traceability requirements.
Related Selection Resources
Top Power over Ethernet Controllers Manufacturers
onsemi
onsemi Power over Ethernet Controllers products are available for part-number review, stock checks, and RFQ support.
28,226 products
Microchip Technology
Microchip Technology Power over Ethernet Controllers products are available for part-number review, stock checks, and RFQ support.
67,462 products
Texas Instruments
Texas Instruments Power over Ethernet Controllers products are available for part-number review, stock checks, and RFQ support.
84,045 products
Analog Devices
Analog Devices Power over Ethernet Controllers products are available for part-number review, stock checks, and RFQ support.
82,970 products
STMicroelectronics
STMicroelectronics Power over Ethernet Controllers products are available for part-number review, stock checks, and RFQ support.
19,050 productsAbout Power over Ethernet Controllers
Frequently Asked Questions
Octatronics can help source a wide range of Power over Ethernet Controllers from major manufacturers worldwide, including active production parts, long-lead-time items, and hard-to-find components.
Yes. You can submit a single part number or upload a BOM with multiple parts. Our team will check stock, date code, lead time, and pricing for each item.
Availability depends on the specific part number and supplier source. For important orders, buyers can request packaging photos, labels, date code information, and traceability documents.
Yes. Octatronics supports sourcing for active, end-of-life, obsolete, and hard-to-find components through our global supplier network.
Please provide the part number, manufacturer, quantity, required date code, target price, delivery country, and whether original packaging or COC is required.
Articles & Technology
View All →
How to Choose Electronic Components for Reliable Hardware Design
Learn how to choose electronic components for reliable hardware design, including specifications, lifecycle status, sourcing risks, quality checks, and BOM optimization.
Pin-to-Pin Replacement Parts: How to Check Compatibility Before Sourcing
When an original electronic component becomes obsolete, unavailable, or too expensive, a pin-to-pin replacement part can help avoid PCB redesign and keep production or repair projects moving. However, pin-to-pin compatibility does not automatically mean the part is a safe drop-in replacement. This guide explains how to check package, footprint, pinout, electrical ratings, thermal performance, timing behavior, firmware requirements, compliance status, and lifecycle risk before sourcing replacement parts. It also provides a practical checklist to help engineers, buyers, and maintenance teams reduce sourcing mistakes and verify compatibility before purchase.
How to Find Pin-Compatible Alternatives for Obsolete ICs
Finding a pin-compatible alternative for an obsolete IC is not just about matching the package. It requires a structured review of pinout, footprint, electrical parameters, functional behavior, lifecycle status, sourcing reliability, and sample validation.
IC Top Marking Codes Explained: How to Identify SMD Chips from Package Markings
IC top marking codes are abbreviated package markings used to identify semiconductor devices, especially small SMD chips that cannot fit a full part number. Buyers should use the marking as a starting point, then verify manufacturer logo, package, pin count, date code, lot code, datasheet, packing label, and supplier documentation. Official manufacturer marking tools and datasheets should be used before relying on third-party SMD code databases.