Thermal Management

LTG family

Thermal Guide Electrically-Isolated SMT Thermal Jumper

LTG devices from Lotus Microsystems are thermally conductive yet electrically isolated silicon-based thermal jumpers. These devices are designed to guide heat away from hot electronic components, such as between active devices and ground planes, without establishing an electrical connection. LTG devices significantly enhance thermal conductivity, particularly in situations with limited or no direct access to a ground plane or heatsink, such as in a high-side switch in a half-bridge configuration.

Silicon, used as an alternative to traditional ceramic materials in the construction of thermal jumpers, offers a cost-effective solution with high thermal conductivity and excellent thermomechanical properties, and is reliably processed. The incorporation of LTG devices improves circuit reliability and reduces the overall cost of the thermal management system. They are available in three standard EIA sizes (0201, 0402, 0603, 0805, and 1206) as well as custom sizes.

In need of customized solution?

Lotus Microsystems designs LTGs in almost any size, with Cu-Ni-Ag or Cu termination to deliver enhanced thermal resistance. Whether you need lateral or vertical heat transfer, tighter layouts, or a non-standard footprint, our team will shape the LTG precisely to your application.

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X-Y Dimensions

Component Height

Component Footprint

Applications

Optical Transceivers

LTGs help equalize temperature across high-speed optical electronics and photonics, ensuring reliable high-data-rate performance.

High-Power LED Systems

LTGs provide a low-resistance thermal path from LED junctions to the heatsink while preserving full electrical isolation — essential for high-brightness lighting.

PIN & Laser Diodes

LTGs remove localized heat to protect optical output power, wavelength stability, and device longevity — critical for telecom and optical sensing modules.

FPGA Designs

In high-IO, high-logic FPGA packages, LTGs transfer heat away from hotspots, maintaining timing stability, reducing thermal throttling, and enhancing processing speed.

Power Amplifiers

LTGs stabilize PA junction temperatures by creating a low-resistance thermal path, improving linearity and extending device lifetime.

Filters & Synthesizers

By reducing temperature rise and gradients, LTGs minimize frequency drift for more precise and stable RF performance.

E-Bike Motor Systems

Lotus Thermal Guides efficiently extract heat from power stages, gate drivers, and control electronics within compact motor housings.

Drone Electronics

Compact drone modules generate significant localized heat in flight processors, power converters, flight controllers, and RF links.

Evaluation Board

Evaluation Board for LTG - Thermal Guide

The LTG EVB is a fully assembled and tested printed circuit board that demonstrates the LTG thermal guide. LTG devices from Lotus Microsystems are thermally conductive yet electrically isolated silicon-based thermal jumpers.

These devices are designed to guide heat away from hot electronic components, such as between active devices and ground planes, without establishing an electrical connection. LTG devices significantly enhance thermal conductivity, particularly in situations with limited or no direct access to a ground plane or heatsink, such as in a high-side switch in a half-bridge configuration. The evaluation board uses a resistor to simulate a heat source while demonstrating the functionality of the LTG thermal guides.

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