Datasheet

Surface Mount Fuses
Nano2® > 600VDC > Fast-Acting Fuse > 485 Series
485 Series Fuse
RoHS
Description
The 485 Nano2® 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.
Features
Agency Approvals
Agency
Agency File Number
Ampere Rating
E10480
1A - 3.15A
29862
1A - 3.15A
• Fast-Acting / Surface
mount high fuse for high
voltage (up to 600VDC)
applications.
• Relatively high breaking
capacity at 100A.
• Fully compatible with
lead-free solder alloys
and higher temperature
profiles associated with
lead-free assembly.
• Rating – 1 - 3.15
Amperes.
• RoHS compliant /
Halogen Free
Applications
Electrical Characteristics for Series
% of Ampere
Rating
Opening Time at 25ºC
100%
4 hours, Minimum
200%
60 seconds, Maximum
• 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
Additional Information
Datasheet
Samples
Resources
Electrical Specifications by ltem
Ampere
Rating
(A)
Amp Code
Max Voltage
Rating
(V)
1.00
001.
1.50
01.5
2.00
002.
600
2.50
02.5
3.15
3.15
Agency Approvals
Nominal Cold
Resistance
(Ohms)
Nominal
Melting I2t
(A2sec)
600
0.264
0.3044
X
X
600
0.123
0.3917
X
X
0.0744
0.8962
X
X
600
0.0583
1.4921
X
X
600
0.0395
3.304
X
X
Interrupting Rating
[email protected],
[email protected]
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. I2t values stated for 8 msec opening time.
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice. Application testing is strongly recommended.
Revised: 05/10/16
Surface Mount Fuses
Nano2® > 600VDC > Fast-Acting Fuse > 485 Series
100
2A
2.5A
3.15A
1A
Average Time Current Curves
1.5A
Temperature Re-rating Curve
TIME IN SECONDS
10
1
0.1
Note:
1. Rerating depicted in this curve is in addition to the standard derating of 25% for
continuous operation.
0.01
0.001
0.1
1
10
100
1000
CURRENT IN AMPERES
Soldering Parameters - Reflow Soldering
Pre Heat
Pb – Free Assembly
- Temperature Min (Ts(min))
150°C
- Temperature Max (Ts(max))
200°C
- Time (Min to Max) (ts)
60 – 180 ses
Average Ramp-up Rate (Liquidus Temp
(TL) to peak)
5°C/second max.
TS(max) to TL - Ramp-up Rate
5°C/second max.
Reflow
- Temperature (TL) (Liquidus)
217°C
- Temperature (tL)
60 – 150 seconds
260
Time within 5°C of actual peak
Temperature (tp)
20 – 40 seconds
Critical Zone
TL to TP
Ramp-up
TL
TS(max)
tL
Ramp-down
TS(min)
25
Peak Temperature (TP)
+0/–5
tP
TP
Temperature
Reflow Condition
Preheat
tS
time to peak temperature
(t 25ºC to peak)
Time
°C
Ramp-down Rate
5°C/second max.
Time 25°C to peak Temperature (TP)
8 minutes max.
Do not exceed
260°C
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 05/10/16
Surface Mount Fuses
Nano2® > 600VDC > Fast-Acting Fuse > 485 Series
Product Characteristics
Material
Body: Ceramic
Cap: Silver Plated Brass
Product Marking
Body: Brand Logo, Current Rating
Operating
Temperature
-55˚C to 125˚C with proper derating
Moisture Sensitivity
Level
Level 1 J-STD-020
Solderability
MIL-STD-202, Method 208
Insulation
Resistance
(after Opening)
MIL-STD-202, Method 302,
Test Condition A (10,000 ohms,
Minimum)
MIL-STD-202, Method 107,
Test Condition B, 5 cycles, -65˚C to 125˚C,
15 minutes @ each extreme
MIL-STD-202, Method 213,
Test Condition I: Deenergized. 100G’s
peak amplitude, sawtooth wave 6ms
duration, 3 cycles XYZ+xyz = 18 shocks
MIL-STD-202, Method 201: 0.03”
amplitude, 10-55 Hz in 1 min. 2 hrs. each
XYZ=6hrs
Thermal Shock
Mechanical Shock
Vibratio
Moisture
Resistance
Dimensions
MIL-STD-202, Method 106, 10 cycles
MIL-STD-202, Method 101,
Test Condition B (48hrs)
MIL-STD-202, Method 210,
Test Condition B (10 sec at 260˚C)
Salt Spray
Resistance to
Soldering Heat
Part Numbering System
Recommended Pad Layout
0485 3.15 D R
SERIES
AMP Code*
Refer to Electrical
Characteristics Table
TOP VIEW
WAVE SOLDER
QUANTITY Code
D = 1500 pieces
PACKAGING Code
R = Tape and Reel
END CAP
*Example
REFLOW SOLDER
3.15 amp is 04853.15DR
Packaging
Packaging Option
Packaging Specification
Quantity
Ouantity & Option Code
24mm Tape and Reel
EIA-RS 481-1, (IEC 286, Part 3
1500
DR
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 05/10/16