Time Lag Subminiature Small Square Surface Mount Fuse 0.50A - 5.0A 250V 443 Series NANO2 3x10mm

1500 Pieces
Time Lag Subminiature Small Square Surface Mount Fuse 0.50A - 5.0A 250V 443 Series NANO2 3x10mm
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Name: Surface Mount Fuse
Voltage: 250V
Fuse Type: Time Delay / Slow Blow
Height: 3.12 Mm
Length: 10.1 Mm
Width: 3.12 Mm
SPQ: 1500PCS Per Reel
Product Type: SMD Fuses
High Light:

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surface mount thermal fuse

Basic Infomation
Place of Origin: Philipines
Brand Name: LT
Certification: ROHS,UL,KC,TUV,PSE
Model Number: 443
Payment & Shipping Terms
Packaging Details: Tape in reel,1500pcs per reel
Delivery Time: 7-10 Workdays
Payment Terms: T/T
Supply Ability: 15000000PCS/Month
Product Description


443 Series NANO2 3x10mm Time Lag Subminiature Small Square Surface Mount Fuse 0.50A - 5.0A 250V





The 250V Nano2 Fuse is a small square surface mount fuse that is designed to enable compliance with the RoHS directive. This product is fully compatible with lead-free solder alloy and higher temperature profiles associated with lead-free assembly.





• 250 VAC voltage rating

• Slo-Blo® Fuse

• Available 0.50A – 5.00A

• RoHS Compliant

• Fully compatible with lead-free solder alloys and higher temperature profiles associated with lead-free assembly





• AC/DC power adaptor

• Telecom equipment system power

• Portable system built-in AC/DC converter

• Lighting System

• LED Lighting



Agency Approvals


UL E10480 0.500A - 5.00A

SU05024 -14004

SU05024 -14003

SU05024 -14002

0.500A - 0.750A

1.00A - 2.50A

3.00A - 5.00A

PSE NBK290416-JP1021 1.00A – 5.00A
TUV R50310551 0.500A - 5.00A



Electrical Characteristics for Series


% of Ampere Rating Opening Time
100% 4 hours, Minimum
250% 120 seconds, Maximum





Time Lag Subminiature Small Square Surface Mount Fuse 0.50A - 5.0A 250V 443 Series NANO2 3x10mm 0



Electrical Specifications by Item


Ampere Rating(A) Amp Code Max Voltage Rating (V) Interrupting Rating Nominal Cold Resistance (Ohms) Nominal Melting I 2t (A2sec) Nominal Voltage Drop (mV)
0.50 .500 250 50A@250VAC 0.600 1.61 448
0.75 .750 250 0.275 3.025 285
1 001. 250 0.180 10.17 234
1.50 01.5 250 0.100 14.72 196
2 002. 250 0.052 18.06 154
2.50 02.5 250 0.035 18.13 139
3 003. 250 0.028 51.44 113
3.50 03.5 250 0.019 53.14 98
4 004. 250 0.016 122.5 81
5 005. 250 0.0115 180.5 80



1. Cold resistance measured at less than 10% of rated current at 23°C.

2. Agency Approval Table Key: X=Approved or Certified, P=Pending and Blank=Not Approved

3. Have special electrical characteristic needs Contact us or Littelfuse to learn more about application specific options.



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