Central Inverters

On solar farms, central inverters convert direct current from PV panels to alternating current for transmission lines. A block diagram shows components Littelfuse can supply for these units. We make inline fuses, UL-rated power fuses, and surge protective devices to protect input and output circuits. We also offer MOSFET and SiC diode dc–dc converters, IGBT inverters, and dc disconnect switches.

Block Diagram

Technology:
Product Series:SPXI, SPFI
Features:50,000 A interrupting rating; UL recognized
Benefits:Offers higher amperage protection; design flexibility; save space, time, and money

Technology:
Product Series:SPXV, SPNH, LFPXV, SPF
Features:50,000 A interrupting rating; fast acting fuse
Benefits:Offers higher amperage protection; ease of design

Technology:
Product Series:
Features:Fast switching time; ultra-low RDS(on)
Benefits:High power density; easy to mount; space-saving

Technology:
Product Series:
Features:Rugged design; low EMI and low VCE(SAT)
Benefits:Low power consumption and fast response

Technology:
Product Series:
Features:Extremely current-limiting; small footprint; 200 kA interrupting rating
Benefits:Reduces damage to equipment caused by short circuit currents; compact design

Technology:
Product Series:
Features:Adjustable pickup (30-5,000 mA); Frequency range (0-90 Hz, 20-6,000 Hz)
Benefits:Adjustable trip setting provides a wide range of low-level protection and system coordination

Technology:
Product Series:SE-601
Features:Adjustable pickup EL-731(30-5,000 mA); SE-601(1-20 mA)
Benefits:Adjustable trip setting provides a wide range of low-level protection

Technology:
Product Series:
Features:Extremely low gate charge and output capacitance; ultra low on-resistance
Benefits:Optimized for high-frequency applications; high power density; easy to mount; space-saving

Technology:
Product Series:SP3130
Features:Low capacitance of 1.0 pF per I/O
Benefits:Smaller form-factor and multi-line protection ease of design

Technology:
Product Series:SP712, SM712, SP2555NUTG
Features:Low capacitance of 2.5 pF; Low leakage current of 0.1 A; small form factor
Benefits:Minimizes signal distortion, reduces voltage overshoot, and provides a simplified PCB design