Content last revised on February 9, 2026
HINODE 350GH-160UL: Precision 160A Fast-Acting Fuse for Semiconductor Protection
Introduction to High-Reliability Circuit Protection
The HINODE 350GH-160UL is a very fast-acting cylindrical fuse engineered for the rigorous demands of modern power electronics. It delivers robust overcurrent protection with core specifications of 160A and 350V AC / 400V DC. The key engineering benefits include superior protection of sensitive semiconductors and UL-recognized compliance for streamlined system integration. This fuse is specifically designed to minimize let-through energy under fault conditions, which is a critical requirement for protecting IGBTs and other power switching devices from catastrophic failure. For power conversion systems where component survival during a short-circuit event is paramount, the 350GH-160UL's performance characteristics are the optimal choice.
Application Scenarios & Value
Ensuring System Uptime in High-Power Inverters and Drives
The HINODE 350GH-160UL is engineered for critical applications where fault currents can rapidly destroy expensive power components. Its primary value is demonstrated in the protection of the DC-link stage in Variable Frequency Drives (VFDs), uninterruptible power supplies (UPS (Uninterruptible Power Supply) ), and solar inverters. In a high-power VFD, a shoot-through event in an IGBT module can create a direct short circuit across the DC bus. The 350GH-160UL's extremely low total clearing I²t value ensures that the fault is interrupted in microseconds, isolating the failed component before the destructive energy can propagate to other semiconductors or the DC-link capacitors. This rapid action not only prevents cascading failures but also significantly enhances the overall safety and reliability of the end equipment, a crucial factor for compliance with standards like the UL 248 series for fuses. For systems requiring protection of higher power IGBTs, devices such as the BSM300GA120DN2 are often paired with fuses of this class.
Key Parameter Overview
Specifications Engineered for Semiconductor Safety
The technical specifications of the HINODE 350GH-160UL are tailored to provide predictable, high-speed protection. The combination of high interrupting ratings and low let-through energy makes it a definitive choice for safeguarding power conversion systems.
| Parameter | Value |
|---|---|
| Rated Current | 160A |
| Rated Voltage (AC) | 350V |
| Rated Voltage (DC) | 400V |
| AC Interrupting Rating | 100kA |
| DC Interrupting Rating | 10kA (L/R=2ms) |
| Maximum Arc Voltage | 800V |
| Series | 350GH |
| Certifications | UL Recognized |
Frequently Asked Questions (FAQ)
What is the primary benefit of a "very fast-acting" fuse like the 350GH-160UL?
Its main benefit is the extremely low let-through energy (I²t) during a fault. This means it opens the circuit so quickly that sensitive and expensive semiconductors, like IGBTs and SiC MOSFETs, are protected from destructive current levels before they can be damaged.
How does the high AC Interrupting Rating of 100kA add value in industrial environments?
An interrupting rating of 100kA ensures the fuse can safely extinguish an arc and clear a fault from a very "stiff" power source, which is common in industrial settings with large transformers. It prevents the fuse itself from rupturing, which would constitute a catastrophic failure and a significant safety hazard.
Is the HINODE 350GH-160UL suitable for both AC and DC circuit protection?
Yes, it is rated for both. The datasheet specifies its performance up to 350V AC and 400V DC, making it a versatile component for a wide range of power conversion applications, including battery energy storage systems and DC motor drives.
What does the UL Recognized Component Mark signify for a design engineer?
The UL Recognized status indicates that the fuse has been evaluated by Underwriters Laboratories for use within a larger piece of equipment. For an OEM engineer, this simplifies the process of obtaining UL certification for the final product, saving significant time and expense during compliance testing.
A Strategic Approach to System Protection
Integrating the HINODE 350GH-160UL is more than a simple protection measure; it is a strategic decision to enhance system-level reliability and longevity. By selecting a fuse precisely matched to the operating parameters and fault characteristics of the semiconductors it protects, engineers can build more robust power systems. This approach minimizes the total cost of ownership by reducing the likelihood of costly field failures, service calls, and equipment downtime, thereby safeguarding both the hardware and the operational integrity of the entire application.