IoT Gateway Connectivity Solutions

Surge-immune discrete LAN Transformers and high-current PoE++ Integrated RJ45 Connectors. Designed for smart grid concentrators, roadside telemetry units, and industrial edge computing devices exposed to severe transient voltages and wide temperature swings.

6,000 V

SURGE WITHSTAND (10/700MS)

Up to 90W

IEEE 802.3BT POE++

3,000V AC

HI-POT COIL ISOLATION

-40°C ~ +85°C

INDUSTRIAL TEMPERATURE

Field Environment & Power Over Ethernet Challenges

Outdoor cellular gateways, smart metering boxes, and factory floor PLC hubs face extreme electrical stress rarely seen in indoor environments.

FIELD HAZARDS

The Industrial Field Threat

Long outdoor Ethernet drops act as conductive antennas for indirect lightning strikes and inductive motor kickbacks, regularly blowing standard consumer-grade magnetics.

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Common-Mode Lightning Overvoltage:Standard 1.5kV transformers puncture easily during 4kV~6kV field surges.

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PoE Thermal & Arc Degradation:90W PoE++ delivering up to 1A per pair can overheat magnetic cores and erode RJ45 contact pins during live disconnects.

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Inductance Drop at Extreme Cold/Heat:Temperature swings from -40°C to +85°C cause permeability shift in ferrite cores, violating the 350μH OCL rule.

ENGINEERED HARDENING

Our Ruggedized Engineering Approach

We utilize triple-insulated magnet wire, high-saturation iron-powder cores, and heavy gold plating to deliver uncompromising physical link reliability.

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6kV Surge-Immune Winding Topology:Patented tri-filar windings passing IEC 61000-4-5 10/700μs 6kV tests without external varistors.

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Heavy-Plated PoE Contacts:30μ" to 50μ" gold-plated phosphor bronze pins prevent spark erosion under 90W full-load unmating.

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Thermally Stable OCL:Guaranteed OCL ≥ 350μH with 8mA to 19mA DC bias applied across the entire -40°C to +85°C operating span.

CERTIFIED SELECTION MATRIX

Industrial Gateway Magnetics & RJ45 Matrix

Fully certified against IEC 61000-4-5, IEEE 802.3bt, and UL 60950-1 safety requirements.

Part Number Series	Surge Rating	PoE Class	Isolation (Hi-Pot)	Package / Pins	Operating Temp
TRC82440ANL	6kV (10/700μs)	Non-PoE / 30W PoE	3,000V AC (1 min)	SMD 24-Pin Modules	-40°C to +85°C
TRJK9093AHNL	4kV / 6kV Option	PoE++ (90W IEEE 802.3bt)	2,250V DC	Single Port MagJack (LEDs)	-40°C to +85°C
TRJ28002A34NL	4.5kV Common Mode	PoE+ (30W per port)	2,000V AC	Dual Port 1×2 MagJack	-40°C to +85°C