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

Aolittel Technology Co.,Ltd

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

Brand Name : Littelfuse

Model Number : 443

Certification : ROHS,UL,KC,TUV,PSE

Place of Origin : Philipines

MOQ : 1500 Pieces

Price : Ask

Payment Terms : T/T

Supply Ability : 15000000PCS/Month

Delivery Time : 7-10 Workdays

Packaging Details : Tape in reel,1500pcs per reel

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

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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


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.

443 Series 3x10mm Surface Mount Fuse Datasheet

Overcurrent Protection Products:

Fuses Littelfuse offers the world’s broadest range of fuse types and ratings, including cartridge, leaded, surface mount and thin film designs PTCs Positive Temperature Coefficient thermistor technology provides resettable current-limiting protection Protection Relays Electronic and microprocessor-based protection relays minimize damage to equipment and personnel caused by electrical faults Overvoltage Protection Products: Varistors Littelfuse offers surface mount Multi-Layer Varistors (MLVs) and industrial Metal Oxide Varistors (MOVs) to protect against transients GDTs Gas Discharge Tubes (GDTs) to dissipate transient voltage through a contained plasma gas Thyristors Solid state switches that control the flow of current in a wide range of appliances, tools and equipment SIDACtor® Devices Overvoltage protection specifically designed for legacy telecom and today’s broadband connections TVS Diodes Silicon Transient Voltage Suppression (TVS) devices SPAs Silicon Protection Arrays designed for analog and digital signal line protection PulseGuard® ESD Suppressors Small, fast-acting Electrostatic Discharge (ESD) suppressors Special Application Products: PLED LED Protectors LED string reliability devices that offer open LED bypass, ESD protection and reverse connection protection .

Product Tags:

surface mount resettable fuse


surface mount thermal fuse

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