MEGA® 70V-SF51 High Performance (HP) Fuses

Littelfuse MEGA® 70V-SF51 High Performance (HP) Fuses are designed for high current circuit protection up to 500A with Diffusion Pill Technology, which is a mixing of molecules, atoms, or crystals in the solid, liquid, or gaseous state. The series provides 1MΩ open-state resistance after fuse opening, which guarantees safe interruption at any voltage up to 70V. These fuses are available in current ratings from 60A to 500A with an operating temperature range of -40°C to +125°C. Littelfuse MEGA 70V-SF51 HP Fuses are ideal for battery and alternator protection applications and other heavy gauge cables requiring ultra-high current protection.

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Description Datasheet Availability Pricing (AUD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Fuse Size/Group
Product
Current Rating
Voltage Rating DC
Interrupt Rating
Mounting Style
Termination Style
Fuse Type
Indicator Style
Minimum Operating Temperature
Maximum Operating Temperature
Series
Packaging
Resistance
Littelfuse Automotive Fuses Fuse - Mega 70V (SF51) 2-M8 holes 250A
Datasheet
429In Stock
2,000On Order
Min.: 1
Mult.: 1

MEGA Bulk
Littelfuse Automotive Fuses Fuse - Mega 70V (SF51) 2-M6 holes 250A
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277In Stock
Min.: 1
Mult.: 1

MEGA Bulk
Littelfuse Automotive Fuses Fuse - Mega 70V (SF51) 2-M6 holes 200A
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499In Stock
Min.: 1
Mult.: 1

MEGA Bulk
Littelfuse Automotive Fuses Fuse - Mega 70V (SF51) 2-M6 holes 60A
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316In Stock
Min.: 1
Mult.: 1

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Littelfuse Automotive Fuses Fuse - Mega 70V (SF51) 2-M8 holes 225A
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248In Stock
Min.: 1
Mult.: 1

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Littelfuse Automotive Fuses Fuse - Mega 70V (SF51) 2-M6 holes 80A
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391In Stock
Min.: 1
Mult.: 1

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Littelfuse Automotive Fuses Littelfuse
Datasheet
475In Stock
Min.: 1
Mult.: 1

MEGA Bolt Down Fuses 80 A 70 VDC 2.5 kA at 70 V Stud Bolt Down Time Delay / Slow Blow Element Window - 40 C + 125 C MEGA Bulk 2.8 MOhms
Littelfuse Automotive Fuses Fuse - Mega 70V (SF51) 2-M8 holes 125A
Datasheet
1,247In Stock
Min.: 1
Mult.: 1

MEGA Bulk
Littelfuse Automotive Fuses Fuse - Mega 70V (SF51) 2-M8 holes 150A
Datasheet
1,558In Stock
Min.: 1
Mult.: 1

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Littelfuse Automotive Fuses Fuse - Mega 70V (SF51) 2-M8 holes 200A
Datasheet
768In Stock
2,500On Order
Min.: 1
Mult.: 1

MEGA Bulk
Littelfuse Automotive Fuses Fuse - Mega 70V (SF51) 2-M6 holes 300A
Datasheet
265In Stock
Min.: 1
Mult.: 1

MEGA Bulk
Littelfuse Automotive Fuses Fuse - Mega 70V (SF51) 2-M8 holes 300A
Datasheet
1,519In Stock
Min.: 1
Mult.: 1

MEGA Bulk
Littelfuse Automotive Fuses Fuse - Mega 70V (SF51) 2-M8 holes 350A
Datasheet
394In Stock
Min.: 1
Mult.: 1

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Littelfuse Automotive Fuses MEGA 70V (SF51)2-M8 HOLES 400A
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1,436In Stock
Min.: 1
Mult.: 1

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Littelfuse Automotive Fuses Fuse - Mega 70V (SF51) 2-M8 holes 450A
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903In Stock
Min.: 1
Mult.: 1

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Littelfuse Automotive Fuses Fuse - Mega 70V (SF51) 2-M6 holes 500A
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1,113In Stock
Min.: 1
Mult.: 1

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Littelfuse Automotive Fuses Fuse - Mega 70V (SF51) 2-M8 holes 500A
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397In Stock
500Expected 20/07/2026
Min.: 1
Mult.: 1

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Littelfuse Automotive Fuses MEGA 70V (SF51)2-M8 HOLES 100A
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507In Stock
Min.: 1
Mult.: 1

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Littelfuse Automotive Fuses Fuse - Mega 70V (SF51) 1-M8 hole 350A
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1,387In Stock
Min.: 1
Mult.: 1

MEGA Bulk
Littelfuse Automotive Fuses Fuse - Mega 70V (SF51) 2-M8 holes 60A
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2,467Expected 22/04/2026
Min.: 1
Mult.: 1

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Littelfuse Automotive Fuses Fuse - Mega 70V (SF51) 2-M8 holes 175A
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499Expected 19/05/2026
Min.: 1
Mult.: 1

MEGA Bulk
Littelfuse Automotive Fuses Fuse - Mega 70V (SF51) 1-M6 hole 60A
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 500
Mult.: 500

MEGA Bulk
Littelfuse Automotive Fuses Fuse - Mega 70V (SF51) 1-M8 hole 60A
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 500
Mult.: 500

MEGA Bulk
Littelfuse Automotive Fuses Fuse - Mega 70V (SF51) No-hole 60A
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 500
Mult.: 500

MEGA Bulk
Littelfuse Automotive Fuses Fuse - Mega 70V (SF51) 1-M6 hole 80A
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 500
Mult.: 500

MEGA Bulk