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R45203.5NR

更新时间： 2024-11-02 13:12:51
品牌 Logo 应用领域
力特 - LITTELFUSE /
页数 文件大小 规格书
1页 112K
描述
Electric Fuse, Slow Blow, 3.5A, 125VAC, 125VDC, 50A (IR), Surface Mount

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R45203.5NR 技术参数

生命周期：ObsoleteReach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8536.10.00.40
风险等级：5.2其他特性：RATED BREAKING CAPACITY AT 125 VDC: 50A
熔断特性：SLOW主体宽度：2.69 mm
主体高度：2.69 mm主体长度或直径：6.1 mm
电路保护类型：ELECTRIC FUSEJESD-609代码：e0
焦耳积分标称：26 J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：6.1mm x 2.69mm x 2.69mm
额定分断能力：50 A额定电流：3.5 A
额定电压（交流）：125 V额定电压（直流）：125 V
参考标准：CSA; UL表面贴装：YES
端子面层：TIN LEAD端子形状：END CAP
Base Number Matches：1

R45203.5NR 数据手册

  
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Surface Mount Fuses  
Subminiature Surface Mount  
NANO2® Slo-Blo® Fuse 452/454 Series  
®
®
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  
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.  
AGENCY APPROVALS: Recognized under the Components Program  
of Underwriters Laboratories and Certified by CSA.  
AGENCY FILE NUMBERS: UL E10480, CSA LR 29862.  
INTERRUPTING RATINGS:  
6.86  
(.270")  
6.10  
(.240")  
F
3.15  
(.124")  
T
50 amperes at 125 VAC/VDC  
1 A  
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).  
1.45  
(.057")  
2.95  
(.116")  
1.96  
(.077")  
2.69  
(.106")  
Recommended pad layout  
2.69  
(.106")  
Average Time Current Curves  
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).  
7
1000  
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.  
100  
10  
PATENTED  
ORDERING INFORMATION:  
1
Tin-Lead  
Plated  
Silver  
Nominal  
Nominal  
Plated Ampere Voltage Resistance Melting I2t  
Catalog # Catalog # Rating  
Rating Cold Ohms  
A2 Sec.  
0.1  
R452.375 0454.375  
R452.500 0454.500  
R452.750 0454.750  
3/8  
1/2  
3/4  
125  
125  
125  
1.20  
0.700  
0.360  
0.101  
0.240  
0.904  
R452 001. 0454 001.  
R452 01.5 0454 01.5  
1
125  
125  
0.225  
0.0930  
1.98  
3.65  
1
2
1 /  
R452 002. 0454 002.  
R452 02.5 0454 02.5  
2
125  
125  
0.0625  
0.0450  
8.20  
15.0  
0.01  
1
2
2 /  
0.1  
1
10  
100  
1000  
R452 003. 0454 003.  
R452 03.5 0454 03.5  
3
125  
125  
0.0340  
0.0224  
20.16  
26.53  
CURRENT IN AMPERES  
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. 271 for SMF Omni-Blok® Holder, Series 154 000T.  
269  
www. littelfuse. com  
1

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