242 Barrier Network Fuses

Littelfuse 242 Barrier Network Fuses are designed to enable greater safety for electronic equipment within potentially explosive environments. Littelfuse 242 Barrier Network Fuses are available in both axial lead and surface mount versions. These fuses operate at a temperature range of -40°C to +125°C and withstand 5 cycles of -55°C to +125°C thermal shock. The barrier network fuses come in 3.02mm x 8.4mm. Typical applications include intrinsic safety electrical equipment, electrical connections and components, and test equipment.

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Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Product
Fuse Type
Current Rating
Voltage Rating AC
Voltage Rating DC
Interrupt Rating
Fuse Size/Group
Minimum Operating Temperature
Maximum Operating Temperature
Packaging
Resistance
Littelfuse Surface Mount Fuses Barrier SMT Fuse
Datasheet
5,029In Stock
6,000Expected 14/09/2026
MouseReel Available
Min.: 1
Mult.: 1
: 500
242 Surface Mount Fuses 40 mA 250 VAC 250 VDC 4 kA, 4 kA 3.02 mm x 8.4 mm - 40 C + 125 C Reel, Cut Tape, MouseReel 16.48 Ohms
Littelfuse Surface Mount Fuses 250V .05A
Datasheet
4,527In Stock
11,500On Order
MouseReel Available
Min.: 1
Mult.: 1
: 500

242 Surface Mount Fuses Fast Blow 50 mA 250 VAC 250 VDC 4 kA, 4 kA 3.02 mm x 8.4 mm - 40 C + 125 C Reel, Cut Tape, MouseReel 16.48 Ohms
Littelfuse Surface Mount Fuses 250V .08A
Datasheet
831In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 500

242 Surface Mount Fuses Fast Blow 80 mA 250 VAC 250 VDC 4 kA, 4 kA 3.02 mm x 8.4 mm - 40 C + 125 C Reel, Cut Tape, MouseReel 8.19 Ohms
Littelfuse Surface Mount Fuses 250V .1A
Datasheet
935In Stock
3,000Expected 07/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 500

242 Surface Mount Fuses Fast Blow 100 mA 250 VAC 250 VDC 4 kA, 4 kA 3.02 mm x 8.4 mm - 40 C + 125 C Reel, Cut Tape, MouseReel 3.6 Ohms
Littelfuse Surface Mount Fuses 250V .16A
Datasheet
858In Stock
500Expected 17/08/2026
MouseReel Available
Min.: 1
Mult.: 1
: 500

242 Surface Mount Fuses Fast Blow 160 mA 250 VAC 250 VDC 4 kA, 4 kA 3.02 mm x 8.4 mm - 40 C + 125 C Reel, Cut Tape, MouseReel 3 Ohms
Littelfuse Surface Mount Fuses 250V .2A
Datasheet
518In Stock
500Expected 30/11/2026
MouseReel Available
Min.: 1
Mult.: 1
: 500

242 Surface Mount Fuses Fast Blow 200 mA 250 VAC 250 VDC 4 kA, 4 kA 3.02 mm x 8.4 mm - 40 C + 125 C Reel, Cut Tape, MouseReel 2.68 Ohms
Littelfuse Surface Mount Fuses 250V .125A BARRIER SMT
Datasheet
168In Stock
500Expected 07/09/2026
MouseReel Available
Min.: 1
Mult.: 1
: 500

242 Surface Mount Fuses Fast Blow 125 mA 250 VAC 250 VDC 4 kA, 4 kA 3.02 mm x 8.4 mm - 40 C + 125 C Reel, Cut Tape, MouseReel 3.78 Ohms
Littelfuse Surface Mount Fuses 250V .25A
Datasheet
2,000Expected 03/12/2026
MouseReel Available
Min.: 1
Mult.: 1
: 500

242 Surface Mount Fuses Fast Blow 250 mA 250 VAC 250 VDC 4 kA, 4 kA 3.02 mm x 8.4 mm - 40 C + 125 C Reel, Cut Tape, MouseReel 1.6 Ohms
Littelfuse Surface Mount Fuses Barrier SMT Fuse 250V-W/ Sand .050A
Datasheet
Non-Stocked Lead-Time 19 Weeks
MouseReel Available
Min.: 1
Mult.: 1
: 500

242 Surface Mount Fuses Fast Blow 50 mA 250 VAC 250 VDC 4 kA, 4 kA 3.02 mm x 8.4 mm - 40 C + 125 C Reel, Cut Tape, MouseReel 11.34 Ohms