Brochure

© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/03/17
Surface Mount Fuses
NANO
2®
> Very Fast Acting Fuse > 456 Series
456 Series Fuse
Description
The High Current NANO
2®
Fuse is a small square surface
mount fuse that is designed to support higher current
requirements of various applications.
Agency Approvals
AGENCY AGENCY FILE NUMBER AMPERE RATING
E10480 20A - 40A
T50291892 20A - 30A
PS
E
NBK030308-JP1021 20A - 30A
29862 20A - 40A
Electrical Characteristics
Features
RoHS
% of
Ampere Rating
Opening Time
100% 4 hours, Minimum
200% 60 seconds, Maximum
Electrical Specifications
Ampere
Rating
(A)
Amp
Code
Max
Voltage
Rating
(V)
Interrupting
Rating
Nominal
Cold
Resistance
(Ohms)
Nominal
Melting
I
2
t (A
2
Sec.)
Nom Voltage
Drop
(mV)
Agency Approvals
PS
E
20 020. 125
100A @125VAC
300A @ 65VAC
300A @ 100VDC
1000A @ 32VDC
500A @ 72VDC
0.00230 18 64.7 x x x x
25 025. 125
100A @ 125VAC
300A @ 65VAC
500A @ 72VDC
1000A @ 32VDC
0.00192 45 68.38 x x x x
30 030. 125
100A @ 125VAC
300A @ 65VAC
1000A @ 32VDC
500A @ 72VDC
0.00132 81 69.9 x x x x
40 040. 72
180A @ 72VDC
600A @ 60VDC
0.00105 191 55 x x
Applications
• Voltage regulator module
for PC server
• Cooling fan system for
PC server
• Storage system power
• Basestation power
supply
• Surface mount high
current fuse
• Fully compatible with
lead-free solder alloys
and higher temperature
profiles associated with
lead-free assembly
• RoHS compliant and
Halogen Free
• Available in ratings of 20
to 40 Amperes
PS
E
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.
3. I
2
t values stated for 1 msec opening time.
40A
20A, 25A, 30A
Application testing is strongly recommended.
Additional Information
Datasheet
Samples
Resources