China Pyro Fuse Manufacturer

Design Your Project with the Next Generation of Semiconductor Fuses

As a leading Semiconductor Fuse manufacturer, we offer high-quality pyro fuses that are designed to meet your needs. We also offer ODM and OEM services to help you customize your pyro fuses to your exact specifications.

Intelligent

Adjustable protection strategy

Ultra Fast

The fault can be cut off in 13μH

Full Range

Reliable breaking of all faults

Long Life

Low rated power consumption

HIITIO 1000V 400A Pryo Fuse

HIITIO’s industry-standard Pyro Safety Switches comply with the high-quality requirements of the vehicle industry.
Our Pyro Safety Switches offer a range of technical specifications, including different voltages, short circuit resistance and maximum current.

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Elevate Your EV Safety with HIITIO Pyro Fuses

low-cost, fast-acting protection switch disconnects the circuit safely, reliably, swiftly, and efficiently, shutting down the power circulation before any short circuit can occur due to vehicle deformation in the case of a crash, accident, or malfunction.

Intelligent Detectio Algorithm

The protection strategy can be adjusted according to the application scenario

High-speed Breaking Technology

Provides robust protection under high-voltage scenarios.

Multiple Arc Extinguishing Technology

Reliable Breaking of All Faults, Low Rated Power Consumption, Can Bear Impulse Current

HIITIO Pyro Fuse Advantages

Ultra-High Voltage & Extreme Breaking Capacity

Withstands 1000V DC systems and breaks 15,000A short-circuit current in <1ms, ensuring safety in critical overload scenarios.

Pyrotechnic Ultra-Fast Response

Triggers circuit interruption in <2ms (typical <1ms) via pyrotechnic technology, 10x faster than conventional fuses.

Robust Environmental Adaptability

IP65-rated protection, -40°C~85°C operating range, and AK-LV 124-certified resistance to vibration/mechanical shock.

High-Efficiency Energy Management

Supports 450A/40min fast charging and CuSn-plated busbars with <80µΩ resistance for minimized energy loss.

Comparison Between Pyro Safety Switches and Traditional Semiconductor Fuses

Feature	Pyro Fuse	Traditional Semiconductor Fuse
Operation Mechanism	External signal with pyrotechnic charge	Overcurrent melts metal element
Response Speed	Extremely fast (milliseconds)	Fast, but varies with current level
Control	Externally triggered, precise control	Passive, automatic response
Primary Application	EV battery isolation, high-voltage safety	Semiconductor protection in power electronics
Voltage Range	Up to 1000VDC	125V to 2100V
Cost	Higher, with customization options	Generally lower, standardized
Single-Use	Yes	Yes
Safety Focus	Critical safety in dynamic environments	Overcurrent protection in stable systems

Leverage our industry experience to support the success of your project.

HIITIO utilizes advanced automated production lines and laboratory testing equipment, strictly adhering to the IATF16949 production system. Our integrated PLM+ERP+MES system ensures digitalized and intelligent manufacturing, enabling full traceability across development, production, and sales processes.