H1086

Overview

The H1086 is a LAN pulse transformer module manufactured by Pulse Electronics, designed for surface mount applications. It features a 1:1 turns ratio and supports 10/100 Base-T single-port Ethernet connectivity. The component operates within a temperature range of 0°C to 70°C and measures 25.40mm in length, 9.91mm in width, and 6.22mm in maximum height. It weighs approximately 3.13 grams and complies with RoHS standards.

Feature Summary

• Supports 10/100 Base-T single-port Ethernet transmission
• Surface mount package design for automated assembly
• Compatible with major transceiver manufacturers including Broadcom, Intel, Micrel, National Semiconductor, ICS, and TDK

Applications

• Single-port Ethernet network interface cards
• LAN hub and switch modules
• Industrial networking equipment requiring IEEE 802.3 compliance

Procurement Notes

Verify the specific ordering suffix when purchasing, as variants such as H1086NLT exist with identical core specifications but different packaging formats. Confirm that the required version matches the intended manufacturing process and reel or cut-tape requirements. Cross-reference the manufacturer part number against official distributor catalogs to ensure authenticity and correct revision status before finalizing procurement orders.

Selection Notes

Select this component for designs requiring a compact, non-PoE isolated transformer solution for 10/100 Mbps data links. Ensure the PCB footprint accommodates the specified 25.40mm x 9.91mm dimensions. Verify thermal management capabilities within the 0°C to 70°C operating range. Confirm compatibility with the system's transceiver chip from supported vendors like Broadcom or Intel to guarantee signal integrity and protocol adherence.

Part Context

This component belongs to Pulse Electronics' portfolio of LAN pulse transformers, specifically engineered for high-reliability Ethernet applications. It serves as a critical isolation element in network interfaces, ensuring signal integrity while protecting downstream circuitry. The product line emphasizes compatibility with industry-standard transceivers and adherence to IEEE 802.3 specifications for robust data communication.

Replacement Considerations

Public confirmed substitute part numbers include H1086NL, H1089NL, and PE-68515LNL. These alternatives share similar functional characteristics and form factors. Verify electrical parameters and pinout compatibility before substitution to maintain system performance and physical fit within the existing design constraints.

FAQ

Is the H1086 compatible with Power over Ethernet (PoE) applications?

No, the H1086 is specified as a non-PoE module intended for standard 10/100 Base-T data transmission only.

What is the primary function of the H1086 in an Ethernet circuit?

It acts as a pulse transformer providing galvanic isolation and impedance matching for single-port 10/100 Mbps Ethernet connections.