Solving Thermal Runaway: Why Vacuum Cleaner Motors Need T1635H-6I Reliability

2026-03-06

The Pain Point: The "Heat Trap"

Modern cordless and upright vacuum cleaners demand massive suction from tiny motors. These motors generate intense heat within sealed plastic housings. Standard TRIACs often reach their thermal limit, leading to "thermal runaway"—where the component loses control, stays "ON," and eventually destroys the motor.

Cross-section of a vacuum cleaner head showing the internal motor and PCB. Heat bloom visible on the TRIAC component near the motor, demonstrating the need for a high-temperature 150°C device like the T1635H-6I.

The Solution: High-Temperature Headroom

The T1635H-6I is specifically "Snubberless," meaning it can handle the rapid voltage rise ( $dV/dt$ ) of a high-speed vacuum motor without an external RC snubber circuit.

Why Engineers Choose T1635H-6I:

Compact Footprint: No snubber means a smaller PCB.
Safety Margin: At $150^{\circ}C$ , the T1635H-6I remains stable while others drift.
Surge Resilience: Handles the $160A$ startup surge of universal motors effortlessly.

To see the full technical comparison of these specs, visit our T1635H-6I Pillar Page.