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参数资料
| 型号： | 045403.5 |
| 厂商： | Littelfuse, Inc. |
| 英文描述： | Snap Action Basic Switch; Contact Current Max:500mA; Circuitry:SPDT; Switch Terminals:Screw; Actuator Style:Hinge Lever; Current Rating:15A at 250VacA; Mounting Type:Screw Terminal; Operating Force Max:100gf RoHS Compliant: Yes |
| 中文描述： | 亚硝酸钠二氧化硅生物科技保险丝四百五十四分之四百五十二系列 |
| 文件页数： | 1/1页 |
| 文件大小： | 110K |
| 代理商： | 045403.5 |
7
SURF
A
CE
MOUNT
FUSES
269
Surface Mount Fuses
www .littelfuse .com
Subminiature Surface Mount
NANO
2
Slo-Blo Fuse 452/454 Series
Tin-Lead
Silver
Nominal
Plated
Ampere
Voltage
Resistance Melting I
2t
Catalog #
Rating
Cold Ohms
A
2 Sec.
R452.375
0454.375
3/8
125
1.20
0.101
R452.500
0454.500
1/2
125
0.700
0.240
R452.750
0454.750
3/4
125
0.360
0.904
R452 001.
0454 001.
1
125
0.225
1.98
R452 01.5
0454 01.5
11/2
125
0.0930
3.65
R452 002.
0454 002.
2
125
0.0625
8.20
R452 02.5
0454 02.5
21/2
125
0.0450
15.0
R452 003.
0454 003.
3
125
0.0340
20.16
R452 03.5
0454 03.5
31/2
125
0.0224
26.53
R452 004.
0454 004.
4
125
0.0186
34.40
R452 005.
0454 005.
5
125
0.0136
53.72
The NANO2 Slo-Blo fuse has enhanced inrush withstand characteristics
over the NANO2 Fast-Acting fuse. The unique time delay feature of this
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:
% of Ampere
Opening
Rating
Time
100%
4 hours, Minimum
200%
1 second, Min.; 60 seconds, Max.
300%
0.2 seconds, Min.; 3 seconds, Max.
800%
0.02 seconds, Min.; 0.1 seconds, Max.
AGENCY APPROVALS: Recognized under the Components Program
of Underwriters Laboratories and Certified by CSA.
AGENCY FILE NUMBERS: UL E10480, CSA LR 29862.
INTERRUPTING RATINGS:
50 amperes at 125 VAC/VDC
ENVIRONMENTAL SPECIFICATIONS:
Operating Temperature: –55°C to 125°C.
Shock: MIL-STD-202, Method 213, Test Condition I (100 G’s peak for
6 milliseconds).
Vibration: MIL-STD-202, Method 201 (10–55 Hz, .06 in. total excursion).
Salt Spray: MIL-STD-202, Method 101, Test Condition B (48 hrs.).
Insulation Resistance (After Opening): MIL-STD-202,
Method 302, Test Condition A, (10,000 ohms minimum).
Resistance to Soldering Heat: MIL-STD-202, Method 210,
(3 sec. at 260°C).
Thermal Shock: MIL-STD-202, Method 107,
Test Condition B (–65 to 125°C).
Moisture Resistance: MIL-STD-202, Method 106,
High Humidity (90-98 RH), Heat (65°C).
PHYSICAL SPECIFICATIONS:
Materials: Body: Ceramic
Terminations: Tin-Lead Alloy or Silver
Plated Brass Caps.
Soldering Parameters:
Wave Solder — 260°C, 3 seconds maximum
Reflow Solder — 230°C, 30 seconds maximum
Solderability: MIL-STD-202, Method 208.
PACKAGING SPECIFICATIONS: 12mm Tape and Reel per EIA-
RS481-1 (IEC 286, part 3); 1,000 per reel; 5,000 piece reel also available.
Marking: The 452/454 series Slo-Blo fuse marking includes the letter
“T” to designate time delay characteristics.
PATENTED
ORDERING INFORMATION:
1000
100
10
1
0.1
0.01
1000
100
10
1
0.1
3/8A 1/2A
3/4A
1A
1
1/2A
2A
2
1/2A
3A 3
1/2A
4A 5A
TIME
IN
SECONDS
CURRENT IN AMPERES
Refer to pg. 271 for SMF Omni-Blok Holder, Series 154 000T.
Average Time Current Curves
1 A
T
6.86
(.270")
3.15
(.124")
2.95
(.116")
1.96
(.077")
2.69
(.106")
2.69
(.106")
1.45
(.057")
6.10
(.240")
Recommended pad layout
F
Next
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| 045501.6 | Snap Action Basic Switch; Contact Current Max:500mA; Circuitry:SPDT; Switch Terminals:Screw; Actuator Style:Hinge Lever; Current Rating:15A; Mounting Type:Screw Terminal; Operating Force Max:70gf; Operating Position:19 mm RoHS Compliant: Yes |
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