Teccor Electronics, a Littelfuse company, the number one company in North America for transient suppression products.  Teccor manufactures semiconductor products for the telecommunications and industrial markets.  With two product groups, transient voltage suppressor devices and power switching devices make Teccor and Littlefuse your choice for transient suppression products.

R&J COMPONENTS 130,000 square feet of warehouse is home to one of the largest inventories of fuses and fuse holders; including one of the world’s leading manufacturers, LITTELFUSE.

LITTELFUSE began manufacturing in 1927 with a focus on protecting applications from the harm caused by short circuits, power surges, electrostatic discharge, lightning, electrical load switching and other electrically-harmful occurrences. LITTELFUSES’s broad and deep portfolio of circuit protection products can be found in consumer electronics, automobiles, commercial vehicles and industrial equipment. In fact, LITTELFUSE products can also be found in marine applications, distribution centers for mining operations, solar, telecom and many military applications.

LITTLEFUSE offers several classes (or types) of fuses. These classes include:

When ordering Military Fuses, it is important to understand which MIL-PRF Code correlates with which series. To gain a better understanding, see below:

Always remember to ask for the appropriate fuse holder when ordering your fuses. With over 16 million fuses and nearly 1 million fuse holders in stock, make R&J Components your source for LITTELFUSE.

Product Series Code

Example: 437 series fuse is “0437”

Ampere Rating Code

Decimal is to far right for whole number amp ratings, to far left for ratings less than one, and within center for fractional amp ratings.

Examples: 10A fuse is “010.” 1/4A or 0.25A fuse is “.250” 1 1/2A or 1.5A fuse is   “01.5” 1 1/4A or 1.25A fuse is “1.25”

Packaging Type *   

A Ammo packed B Bubble packed C Chip packed R Reeled X Filler

Packaging Quantity Code *

A/X 1 V 5 T 10 S 20 L 50 H 100 F 200 G 250 U 500 M 1000 D 1500 P 2000 E 2500 W 3000 Y 4000 N 5000 K 10000 J 12000 Z Misc.

Options Codes *

RT1 Reel and Tape, 2.062in (52.4mm) lead spacing RT2 Reel and Tape, 2.50 in (63.5mm) lead spacing RT3 Reel and Tape, 2.874 in (73mm) lead spacing E Pigtail lead type fuse ID Indicating fuse L RoHS compliant P Lead-free

The SPF Solar Protection Fuse series has been specifically designed for the protection of photovoltaic (PV) systems. This series of Midget style fuses (10 x 38 mm) can safely protect PV modules and conductors from reverseovercurrent conditions.  As PV systems have grown in size, so have the corresponding voltage requirements. This increase in system voltage has typically been intended to minimize power loss associated with long conductor runs. Standard circuit protection devices are not designed to completely protect photovoltaic panels. However, the SPF series is UL Listed to safely interrupt faulted circuits up to this demanding voltage level.

Features/Benefits

• Meets UL, IEC and VDE photovoltaic standards
• UL 2579 Listed 1000 Vdc maximum
• 1-30 A ratings available
• 20,000 A Interrupting Rating
• Both PCB mount and dead-front holder options available

Applications

• Inverters
• Combiner boxes
• Battery charge controllers

Recommended Fuse Holders

• Littelfuse LPHV POWR-Safe Series
• Littelfuse LFPHV POWR-Safe Indicating Series