smallest surface mount ac fuses 470 and 476 series/media/electronics/market_presentations… ·...
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Smallest Surface Mount AC Fuses
470 and 476 Series New Product Introduction
December 2014
Design Registerable!
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Introducing the 470 & 476 Series Fuses
• AC Voltage SMT NANO2 ® Subminiature Fuses
• 470 Series – 1206 package
• 476 Series – 2410 package
• Smallest 125/250Vac rated SMT type
• Used on primary side circuit protection
• Solution for AC voltage, compact applications
What are they?
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• Designed to provide protection against faulty over-current loads
• Protects the downstream components
• No moving parts to wear out
• Limit shock threats to human life and
property damage
• Over-current protection devices are essential in electrical systems
Why Use Fuses?
Design considerations?
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470 & 476 Series Common Applications
• LED Lighting
• LCD/LED TVs
• Notebooks/PCs
• White Goods
• Gaming
Consoles
• Power Supply
Units
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470 & 476 Series Key Features and Benefits
Key Features
• Surface Mount Type AC Fuse
• Smallest footprint
– 470 Series – 1206
– 476 Series – 2410
• High operating temperature at
125oC
• Surge Immunity Capability
– 470 Series – US: ENERGY
STAR® (1.5A and above
ampere rating only)
– 476 Series – Global:
IEC61000-4-5 2 ed. (3A and
above ampere rating only)
Benefits
• SMT is the trend in compact, space-
limited applications; it also enables
higher speed and yield in manufacturing
processes
• Occupies less board space
• Suitable for high temperature
applications such as LED lighting
• 470 and 476 Series Fuses withstand
surge from AC power line and keep LED
light bulb/tube working continuously
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470 & 476 Series Advantages
• Operate effectively at extreme temperatures, without sacrificing too much
on current re-rating
• Available in the highest number of amperage ratings at the rated
voltages
• Passes ENERGY STAR® requirements (470 Series, 1.5A and above
ampere rating only) and IEC61000-4-5 2 ed. Surge Immunity test (476
Series, 3A and above ampere rating only), optimal for LED lighting
applications
• Tested extensively to open safely at the specified interrupt ratings
especially at 86VDC/10KA
Why Choose the 470 & 476 Series?
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Product Family/Package • 1206 Footprint (3.15x1.5mm)
• NANO2 ® Subminiature Fuse
Product Family
• Surface Mountable fuse
Series Ratings/Type
• Fast -acting
• 125VAC/VDC-rated
• 500mA to 2A current ratings available
• 50A Max Interrupting current @ rated voltage
• -55oC to +125oC operating temperature
• ENERGY STAR® Compliant (1.5A and above
ampere rating only)
Agency Approvals
Environmental Compliance
• UL Listed
• RoHS Compliant
• Halogen free
• Pb free
Packaging
• Tape and Reel
• Pack quantity = 1500 pieces
470 Series Fuse Product Brief
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470 Series Part Numbering & Marking
Part Marking Part Numbering System Part Marking
Marking Code
Amp Code Marking Code
0.50 F
001. H
1.25 J
1.50 K
1.60 M
002. N
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Parameter Dimension
Length (L) 3.15 mm
Width (W) 1.50 mm
Height (H) 1.15 mm
Terminal Length 0.83mm
* 470 Series is the smallest 125V SMT fuse Littelfuse offers *
More energy in
a smaller body
Comparison of 470 Series with Other 125V Fuses
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LF 470 Series AEM AF2
Size/Footprint 1206 2410
Construction/Type
Wire-in-Air, FR4 Based
with castellated
termination, Fast Acting
Wire-in-Air FR4 Plastic
Based, with castellated
termination, Fast Acting
Wire-in-Air FR4 Plastic
Based, with castellated
termination, Fast Acting
Voltage Rating 125Vac/Vdc (500mA-2A) 250VAC(0.5A-2A)
125VDC (0.5A – 10A)
65Vac (1.5A-4A) , No
Vac rating
Interrupting Rating 50A@125AC/DC
300A@32VDC 100A@250VAC
50A@125VAC/DC
300A@32VDC
50A@65VDC
Reflow Temperature 260oC Peak 250oC Peak 250oC Peak
Temperature
Re-rating Not given
AEM AF1206
1206
Comparison of 470 Series with Competition
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476 Series Fuse Product Brief
Product Family/Package • 2410 Footprint (6.10x2.69mm)
• NANO2 ® Subminiature Fuse
Product Family
• Surface Mountable Fuse
Series Ratings/Type • Fast-acting
• 125/250Vac-rated
• 1A to 15A current ratings available
• 100A Max Interrupting current @ rated voltage
• 10kA Max interrupting current @ 86 VDC
• -50oC to 125
oC operating temperature
• IEC61000-4-5 2 ed. Surge Immunity Test
Compliant (3A and above ampere rating only)
Agency Approvals
Environmental Compliance
• UL Recognized
• UL-UMF – pending
• VDE (1A to 5A inclusive) – pending
• CQC (1A to 5A inclusive) – pending
• RoHS Compliant
• Halogen free
Packaging • Tape and Reel
• Pack quantity = 1,000 pieces
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476 Series Part Numbering & Marking
Part Marking Part Numbering System Part Marking
Littelfuse Logo
(indicator) Current Rating
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Parameter Dimension
Length (L) 6.10 mm
Width (W) 2.69 mm
Height (H) 2.69 mm
Terminal Length (T) 1.45 mm
Comparison of 476 Series with Other 250V Fuses
* 476 Series is the smallest 250V SMT fuse Littelfuse offers *
More energy in
a smaller body
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LF 476 Series AEM MF2410 Belfuse SSQ
Size/Footprint 2410 2410 2410
Construction/Type Wire-in-Air, Ceramic
Based, with caps,
Fast Acting
Wire-in-Air FR4 Plastic
Based, with castellated
termination, fast Acting
Wire-in-Air, Ceramic
Based, with caps, Fast
Acting
Voltage Rating 250V up to 5A 250V up to 2A 125V
Interrupting Rating
100A@250VAC
300A@125VDC
10kA@86VDC
100A@250VAC
50A@125VDC
50A@125VAC
300A@125VDC
10kA@86VDC
Reflow Temperature 260oC Peak 250oC Peak 260oC Peak
Temperature
Re-rating Not given
Comparison of 476 Series with Competition
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470 & 476 Series Other Key Information
• The 470 and 476 series are
Design Registerable
• For pricing and availability
information, please visit
www.littelfusebusinesscenter.com
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• Current datasheets are available on the Littelfuse website: www.littelfuse.com.
─ Enter “470” or “476” in the search box.
─ Samples are available by contacting your Littelfuse sales representative.
• Application and technical support available at:
─ Phone: 1-800-999-9445
─ Fax: 1-847-391-0459
• Product Management
─ Product Manager: Daniel Wang; Email: [email protected]
─ Asst. Product Manager: John E.C. Semana: Email: [email protected]
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