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0452.750

更新时间: 2024-11-02 19:41:55
品牌 Logo 应用领域
力特 - LITTELFUSE 电路保护
页数 文件大小 规格书
1页 143K
描述
Electric Fuse, Fast Blow, 0.75A, 125VAC, 125VDC, 50A (IR), Surface Mount,

0452.750 技术参数

生命周期:ActiveReach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8536.10.00.40
风险等级:5.12其他特性:RATED BREAKING CAPACITY AT 125 VDC: 50 A
熔断特性:FAST主体宽度:2.69 mm
主体高度:6.1 mm主体长度或直径:2.69 mm
电路保护类型:ELECTRIC FUSEJESD-609代码:e0
焦耳积分标称:安装特点:SURFACE MOUNT
最高工作温度:125 °C最低工作温度:-55 °C
包装方法:TAPE AND REEL物理尺寸:2.69mm x 2.69mm x 6.1mm
额定分断能力:50 A额定电流:0.75 A
额定电压(交流):125 V额定电压(直流):125 V
参考标准:CSA; PSE; UL表面贴装:YES
端子面层:TIN LEAD端子形状:END CAP
Base Number Matches:1

0452.750 数据手册

  
SURFACE MOUNT FUSES  
SUBMINIATURE SURFACE MOUNT  
NANOSMF Slo-Blo® Type Fuse  
®
®
The very small NANO2 Fuse with time delay performance  
characteristics. The unique time delay feature of this fuse  
design helps solve the problem of nuisance “opening” by  
accommodating inrush currents that normally cause a fast-  
acting fuse to open.  
ELECTRICAL CHARACTERISTICS:  
% of Ampere  
Rating  
Opening  
Time  
100%  
200%  
4 hours, Minimum  
1 second, Min.; 60 seconds, Max.  
300%  
800%  
0.2 seconds, Min.; 3 seconds, Max.  
0.02 seconds, Min.; 0.1 seconds, Max.  
6.86  
(.270")  
6.10  
(.240")  
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  
50 amperes at 125 VDC  
3.15  
(.124")  
F
T
L
1 A  
1.45  
(.057")  
2.95  
(.116")  
1.96  
(.077")  
2.69  
(.106")  
300 amperes at 32 VDC  
Recommended pad layout  
2.69  
(.106")  
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).  
Note: Metric dimensions shown.  
Inch dimensions are in parentheses.  
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.).  
Average Time Current Curves  
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).  
1000  
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:  
100  
10  
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 (IEC 286, part 3); 1,000 per reel.  
Marking: The 452/454 series Slo-Blo fuse marking includes  
the letter “T” to designate time delay characteristics.  
PATENTED  
1
ORDERING INFORMATION:  
Tin-Lead  
Plated  
Silver  
Nominal  
Nominal  
Plated Ampere Voltage Resistance Melting I2t  
0.1  
Catalog # Catalog # Rating  
Rating Cold Ohms  
A2 Sec.  
R452.375 0454.375  
R452.500 0454.500  
R452.750 0454.750  
3/8  
1/2  
3/4  
125  
125  
125  
1.60  
0.940  
0.460  
0.101  
0.240  
0.904  
R452 001. 0454 001.  
R452 01.5 0454 01.5  
R452 002. 0454 002.  
R452 02.5 0454 02.5  
1
125  
125  
125  
125  
0.270  
0.116  
0.0760  
0.0540  
1.98  
3.65  
8.20  
15.0  
1
0.01  
2
1 /  
0.1  
1
10  
CURRENT IN AMPERES  
100  
1000  
2
1
2
2 /  
R452 003. 0454 003.  
R452 03.5 0454 03.5  
3
125  
125  
0.0414  
0.0224  
20.16  
26.53  
1
2
3 /  
R452 004. 0454 004.  
R452 005. 0454 005.  
4
5
125  
125  
0.0186  
0.0136  
34.40  
53.72  
Refer to pg. 102 for SMF Omni-Blok® Holder, Series 154 000T.  
35  

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