HFA80A-F2Y - 80A High-Speed Fuse | Littelfuse
MPN: HFA80A-F2Y ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.25 | $5.25 |
| 10 | $4.72 | $47.20 |
| 100 | $4.2 | $420.00 |
| 500 | $3.78 | $1,890.00 |
| 1,000 | $3.36 | $3,360.00 |
HFA80A-F2Y Overview
A fuse is a sacrificial electrical component that protects circuits by melting its internal element when current exceeds a predetermined level, thereby interrupting the flow of electricity. Fuses are essential in power distribution, automotive, and industrial systems to prevent damage from short circuits and overloads. They are categorized by their voltage rating, current rating, and breaking capacity, and are available in various form factors including cartridge, blade, and surface mount types.
Key features of the HFA80A-F2Y include its high current rating of 80A, fast-acting response for sensitive electronics, and a compact design that minimizes space on the PCB. The fuse is designed to operate reliably across a temperature range of , ensuring performance in demanding environments. Its high breaking capacity allows it to safely interrupt large fault currents without causing damage to surrounding components.
The HFA80A-F2Y utilizes a silver or copper alloy element that provides low resistance and minimal power loss during normal operation. The fuse's construction ensures consistent melting characteristics, providing predictable protection. Its fast-acting nature makes it suitable for protecting IGBTs, MOSFETs, and other power semiconductors from overcurrent events.
Typical applications include electric vehicle battery packs, industrial inverters, uninterruptible power supplies (UPS), and renewable energy systems. In these applications, the fuse protects critical power components from short circuits and overloads, ensuring system safety and reliability.
When designing with this fuse, ensure that the continuous operating current is below 80A to avoid nuisance trips. Consider the ambient temperature and derating factors, as high temperatures can reduce the fuse's current-carrying capacity. Proper PCB layout with adequate copper area for heat dissipation is recommended to maintain fuse performance.
Drop-in alternatives for HFA80A-F2Y — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
HFA80A-F2
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
HFA80A-F2Y-Q
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
HFA80A-F2Y-TR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
F80A-F2Y
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
80A-F2Y
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
HFA80A-F2Y Specifications
| Rated Current | 80 A |
| Response Type | Fast-acting |
| Element Material | Silver or copper alloy |
| RoHS Status | unknown |
| REACH Status | unknown |
| AEC-Q100 | not_applicable |
| Lead-Free | unknown |
| Halogen Free | unknown |
| Conflict Minerals | unknown |
| Lifecycle Status | active |
HFA80A-F2Y standard Pin Configuration Guide
Pin configuration for HFA80A-F2Y (standard package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for HFA80A-F2Y.
Refer to the datasheet for full pin configuration.
Typical Applications
HFA80A-F2Y is suitable for 6 applications: Electric Vehicle Battery Packs, Industrial Inverters, Uninterruptible Power Supplies (UPS), Renewable Energy Systems, Power Semiconductors Protection, Battery Management Systems (BMS).
Electric Vehicle Battery Packs
The HFA80A-F2Y protects EV battery packs from overcurrent and short-circuit conditions. Its 80A rating and fast-acting response ensure that fault currents are interrupted quickly, preventing damage to cells and wiring. In a typical EV battery pack, the fuse is placed in series with the main power path, between the battery and the inverter. The fast-acting nature minimizes the energy let-through during a fault, reducing thermal stress on the battery. Designers must ensure the fuse's continuous current rating is above the maximum operating current, and consider derating for ambient temperature. The compact package allows for easy integration into battery management systems.
Recommended
Industrial Inverters
In industrial inverters, the HFA80A-F2Y protects IGBTs and other power semiconductors from overcurrent events. The fuse is placed in the DC bus or AC output path, interrupting fault currents before they can damage the switching devices. Its fast-acting response is critical because IGBTs have limited short-circuit withstand time. The high breaking capacity ensures safe interruption of large fault currents. Designers should place the fuse close to the IGBT module to minimize stray inductance, and ensure adequate PCB copper area for heat dissipation. The fuse's low resistance reduces power loss, improving overall inverter efficiency.
Recommended
Uninterruptible Power Supplies (UPS)
The HFA80A-F2Y is used in UPS systems to protect the inverter and battery from overcurrent conditions. In a UPS, the fuse is placed in the battery circuit and the inverter output. Its fast-acting response ensures that fault currents are interrupted quickly, preventing damage to the UPS components. The high current rating of 80A supports the high power levels typical of UPS systems. Designers must consider the fuse's voltage rating and breaking capacity to match the system requirements. Proper thermal management is essential, as the fuse may operate at elevated temperatures in enclosed UPS enclosures.
Recommended
Renewable Energy Systems
In solar and wind power systems, the HFA80A-F2Y protects inverters and battery banks from overcurrent. The fuse is placed in the DC side of the inverter or in the battery bank. Its high current rating and fast-acting response are essential for handling the variable currents in renewable energy systems. The fuse's low resistance minimizes power loss, improving system efficiency. Designers should ensure the fuse is rated for the system's maximum voltage and current, and consider derating for high ambient temperatures. The compact package allows for easy installation in outdoor enclosures.
Recommended
Power Semiconductors Protection
The HFA80A-F2Y is specifically designed to protect power semiconductors like IGBTs and MOSFETs from overcurrent. Its fast-acting response is critical because these devices have limited short-circuit withstand time. The fuse is placed in series with the semiconductor, interrupting fault currents before they can cause thermal damage. The high breaking capacity ensures safe interruption of large fault currents. Designers should place the fuse as close as possible to the semiconductor to minimize stray inductance, and ensure adequate PCB copper area for heat dissipation. The fuse's low resistance reduces power loss, improving overall system efficiency.
Recommended
Battery Management Systems (BMS)
In BMS, the HFA80A-F2Y protects the battery pack from overcurrent and short-circuit conditions. The fuse is placed in the main power path, between the battery and the load. Its 80A rating and fast-acting response ensure that fault currents are interrupted quickly, preventing damage to the battery cells. The fuse's low resistance minimizes power loss, improving battery efficiency. Designers should consider the fuse's voltage rating and breaking capacity to match the BMS requirements. Proper thermal management is essential, as the fuse may operate at elevated temperatures in battery enclosures.
Recommended
Recommended Products Summary
Engineering reference data for HFA80A-F2Y — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | HFA80A-F2 | HFA80A-F2Y-Q | HFA80A-F2Y-TR |
|---|---|---|---|---|
| Brand | Littelfuse | Littelfuse | Littelfuse | Littelfuse |
| Rated Current | 80 A | 80 A | 80 A | 80 A |
| Response Type | Fast-acting | Fast-acting | Fast-acting | Fast-acting |
| Element Material | Silver or copper alloy | Silver or copper alloy | Silver or copper alloy | Silver or copper alloy |
Key Differentiators
- High current rating of 80A (vs HFA80A-F2)
- Fast-acting response (vs HFA80A-F2)
- Silver or copper alloy element (vs HFA80A-F2)
Design Notes
The HFA80A-F2Y fuse dissipates power during normal operation due to its internal resistance. Ensure adequate PCB copper area and airflow to keep the fuse temperature within its rated operating range. Derate the fuse current for ambient temperatures above 25°C, as high temperatures reduce the fuse's current-carrying capacity. Refer to the Littelfuse application notes for derating curves.
Place the fuse close to the protected component to minimize stray inductance and ensure fast fault interruption. Use wide, short traces for high-current paths to reduce voltage drop and heat generation. Provide adequate clearance around the fuse for arc venting during interruption. Follow the manufacturer's recommended pad layout for the specific package.
Do not operate the fuse continuously at its rated current; always derate for ambient temperature and load variations. Ensure the fuse's voltage rating exceeds the maximum system voltage. Verify the breaking capacity is sufficient for the maximum fault current. Avoid using the fuse in applications with high inrush currents that may cause nuisance trips.
Compliance Information
Compliance information not specified in the available data. Verify with the manufacturer for RoHS, REACH, and conflict minerals status.
