R452.500 Littelfuse Inc, R452.500 Datasheet
![Surface Mount Fuse](/photos/22/4/220461/4596308_sml.jpg)
R452.500
Manufacturer Part Number
R452.500
Description
Surface Mount Fuse
Manufacturer
Littelfuse Inc
Series
452r
Specifications of R452.500
Fuse Current
500mA
Fuse Size
6.10 X 2.69 X 2.69mm
Peak Reflow Compatible (260 C)
No
Current Rating
500mA
Body Material
Ceramic
Fuse Terminals
SMD Caps
Leaded Process Compatible
No
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
R452.500
Manufacturer:
LITTELFUSE/力特
Quantity:
20 000
NANO
The NANO
over the NANO
fuse design helps solve the problem of nuisance “opening” by accommo-
dating inrush currents that normally cause a fast-acting fuse to open.
ELECTRICAL CHARACTERISTICS:
AGENCY APPROVALS:
of Underwriters Laboratories and Certified by CSA.
AGENCY FILE NUMBERS:
INTERRUPTING RATINGS:
50 amperes at 125 VAC/VDC
ENVIRONMENTAL SPECIFICATIONS:
Operating Temperature:
Shock:
6 milliseconds).
Vibration:
Salt Spray:
Insulation Resistance (After Opening):
Method 302, Test Condition A, (10,000 ohms minimum).
Resistance to Soldering Heat:
(3 sec. at 260°C).
Thermal Shock:
Test Condition B (–65 to 125°C).
Moisture Resistance:
High Humidity (90-98 RH), Heat (65°C).
PHYSICAL SPECIFICATIONS:
Materials:
Soldering Parameters:
Solderability:
PACKAGING SPECIFICATIONS:
RS481-1 (IEC 286, part 3); 1,000 per reel; 5,000 piece reel also available.
Marking:
“T” to designate time delay characteristics.
PATENTED
ORDERING INFORMATION:
R452.375
R452.500
R452.750
R452 001.
R452 01.5
R452 002.
R452 02.5
R452 003.
R452 03.5
R452 004.
R452 005.
Catalog # Catalog # Rating
Tin-Lead
% of Ampere
Plated
Rating
100%
200%
300%
800%
MIL-STD-202, Method 213, Test Condition I (100 G’s peak for
Wave Solder — 260°C, 3 seconds maximum
Reflow Solder — 230°C, 30 seconds maximum
2
The 452/454 series Slo-Blo fuse marking includes the letter
Slo-Blo fuse has enhanced inrush withstand characteristics
MIL-STD-202, Method 201 (10–55 Hz, .06 in. total excursion).
Body: Ceramic
Terminations: Tin-Lead Alloy or Silver
Plated Brass Caps.
MIL-STD-202, Method 101, Test Condition B (48 hrs.).
2®
0454.375
0454.500
0454.750
0454 001.
0454 01.5
0454 002.
0454 02.5
0454 003.
0454 03.5
0454 004.
0454 005.
2
Plated
Silver
Fast-Acting fuse. The unique time delay feature of this
MIL-STD-202, Method 208.
Slo-Blo
MIL-STD-202, Method 107,
4 hours, Minimum
1 second, Min.; 60 seconds, Max.
0.2 seconds, Min.; 3 seconds, Max.
0.02 seconds, Min.; 0.1 seconds, Max.
Ampere Voltage
MIL-STD-202, Method 106,
®
Recognized under the Components Program
3/8
1/2
3/4
1
2
3
–55°C to 125°C.
Fuse 452/454 Series
1
2
3
4
5
1
1
1
/
/
/
2
2
2
UL E10480, CSA LR 29862.
MIL-STD-202, Method 210,
Rating
12mm Tape and Reel per EIA-
125
125
125
125
125
125
125
125
125
125
125
Opening
Time
MIL-STD-202,
Resistance Melting I
Cold Ohms
Nominal
1.20
0.700
0.360
0.225
0.0930
0.0625
0.0450
0.0340
0.0224
0.0186
0.0136
Next
w w w . l i t t e l f u s e . c o m
Nominal
A
15.0
20.16
26.53
34.40
53.72
2
0.101
0.240
0.904
1.98
3.65
8.20
Sec.
2
t
Refer to pg. 271 for SMF Omni-Blok
Average Time Current Curves
1000
0.01
100
0.1
10
Previous
1
0.1
Recommended pad layout
(.077")
1.96
(.270")
(.124")
(.116")
6.86
3.15
2.95
1
Surface Mount Fuses
CURRENT IN AMPERES
Subminiature Surface Mount
10
®
Holder, Series 154 000T.
(.057")
1.45
F
(.240")
100
1 A
6.10
(.106")
2.69
T
®
(.106")
269
2.69
1000
®
7