Littelfuse 485 Series - Manual

© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/23/14
Surface Mount Fuses
Nano 2® > 600VDC > Fast-Acting 485 Series
485 Series Fuse
Agency Approvals
Agency Agency File Number Ampere Rating
E10480 1A - 3.15A
LR29862 1A - 3.15A
Features
Electrical Characteristics for Series
• Fast Acting / Surface
mount high fuse for high
voltage (up to 600VDC)
applications.
• Fully compatible with
lead-free solder alloys
and higher temperature
profiles associated with
lead-free assembly.
• Relatively high breaking
capacity at 100A.
• RoHS compliant /
Halogen Free
• Rating – 1 - 3.15
Amperes.
% of Ampere
Rating
Opening Time at 25ºC
100% 4 hours, Minimum
200% 60 seconds, Maximum
Electrical Specifications by ltem
Ampere
Rating
(A)
Amp Code
Max Voltage
Rating
(V)
Interrupting Rating
Nominal
Cold
Resistance
(Ohms)
Nominal
Melting I 2 t
(A 2 sec)
Agency Approvals
1.00 001. 600
100A@600VDC,
100A@250VAC
0.264 0.3044 X X
1.50 01.5 600 0.123 0.3917 X X
2.00 002. 600 0.0744 0.8962 X X
2.50 02.5 600 0.0583 1.4921 X X
3.15 3.15 600 0.0395 3.304 X X
The 485 Nano 2 Fuse Series is a small, fast acting, surface
mount ceramic fuse rated at a remarkable 600VDC at its
small size and with 100A breaking capacity. It is primarily
designed for circuit protection in high energy applications.
This product is fully compatible with lead-free solder alloys
and higher temperature profiles associated with lead-free
assembly.
Description
Applications
• PC server and Telecom
systems
• LCD TV inverter boards
DC input protection
• Uninterruptible Power
Supply (UPS) / 3-Phase
Power Supplies
• 380VDC server / lighting
in data center
Notes:
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. I
2 t values stated for 8 msec opening time.
Additional Information
Datasheet Samples Resources