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0251.250NRT1 PDF预览

0251.250NRT1

更新时间： 2024-02-10 16:54:12
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 35K
描述
Electric Fuse, Very Fast Blow, 0.25A, 125VAC, 125VDC, 50A (IR), Through Hole, HALOGEN FREE

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0251.250NRT1 技术参数

是否无铅：含铅是否Rohs认证：符合
生命周期：Active包装说明：HALOGEN FREE AND ROHS COMPLIANT
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8536.10.00.40风险等级：0.72
Is Samacsys：N其他特性：RATED BREAKING CAPACITY AT 125 VDC: 300 A
熔断特性：VERY FAST主体高度：7.11 mm
主体长度或直径：2.8 mm电路保护类型：ELECTRIC FUSE
保险丝类：Supplemental保险丝尺寸：PICO
JESD-609代码：e3焦耳积分标称：
安装特点：THROUGH HOLE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：2.8mm x 7.11mm预放电的额定值：0.0116 A2/s
额定分断能力：50 A额定电流：0.25 A
额定电压：125 V额定电压（交流）：125 V
额定电压（直流）：125 V参考标准：CSA; QPL; UL
表面贴装：NO端子面层：Matte Tin (Sn)
端子形状：PIN WIREBase Number Matches：1

0251.250NRT1 数据手册

  
Axial Lead and Cartridge Fuses  
Subminiature  
PICO® II Very Fast-Acting Fuse 251/253  
®
QPL  
RoHS  
®
The PICO® II very fast-acting fuse is designed to meet an extensive array  
of performance characteristics in a space-saving subminiature package.  
• RoHS Compliant version now available, use ordering suffix ‘L’  
(see example on data sheet).  
ELECTRICAL CHARACTERISTICS:  
% of Ampere  
Rating  
Ampere  
Rating  
Opening  
Time  
100%  
1/16–15  
1/16–7  
10  
4 hours, Minimum  
1 second, Maximum  
3 seconds, Maximum  
10 seconds, Maximum  
200%  
12–15  
AGENCY APPROVALS: Recognized under the Components  
Program of Underwriters Laboratories and Certified by CSA.  
Approved by METI from 1 through 5 amperes.  
AGENCY FILE NUMBERS: UL E10480, CSA LR 29862.  
REFERENCE TO MIL SPEC: Available in FM10 on QPL for  
MIL-PRF-23419. To order, change 251 to 253 as shown below.  
INTERRUPTING RATINGS:  
38.1  
38.1  
(1.5")  
7.11 (.280")  
REF.  
(1.5")  
2.41 (.095")  
DIA. REF.  
F
1 A  
L
0.64 (.025")  
DIA.  
EPOXY COATING  
300 amperes at rated voltage VDC.  
50 amperes at rated voltage VAC.  
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);  
Method 204, Test Condition C (55–2000 Hz at 10 G’s Peak).  
Moisture Resistance: MIL-STD-202, Method 106.  
PHYSICAL SPECIFICATIONS:  
1
16  
NOTE: .025" diameter for / –10A, .032" diameter for 12 –15A.  
PACKAGING SPECIFICATIONS: Tape and Reel per EIA-296;  
T1: 2.062" (52.4mm) taped spacing; 5,000 per reel.  
Options: For RoHS Compliant devices add the letter ‘L’ to end of  
packaging suffix. Example: R251001.NRT1L (RoHS Compliant 1A,  
5,000 per reel).  
Materials: Encapsulated, Epoxy-Coated Body; Solder Coated Copper  
Wire Leads. RoHS Compliant Product: Pure Tin coated copper wire leads.  
Flammability Rating: UL 94V0  
Average Time Current Curves  
Soldering Parameters:  
100  
Wave Solder — 260°C, 10 seconds maximum.  
Solderability: MIL-STD-202, Method 208.  
Lead Pull Force: MIL-STD-202, Method 211, Test Condition A (will  
withstand a 7 lb. axial pull test).  
PATENTED  
10  
ORDERING INFORMATION:  
Std. Type  
Catalog  
Number  
Mil. Type  
Catalog  
Number  
Nominal  
Resistance  
Cold Ohms  
Nominal  
Melting I2t  
A2 Sec.  
Ampere Voltage  
Rating  
Rating  
1
R251.062  
R251.125  
R251.250  
R251.375  
R253.062  
R253.125  
R253.250  
R253.375  
1/16  
1/8  
1/4  
3/8  
125  
125  
125  
125  
7.0  
0.000113  
0.00174  
0.0116  
1.70  
0.665  
0.395  
0.0296  
R251.500  
R251.750  
R251 001  
R251 1.25  
R251 01.5  
R251 002  
R251 02.5  
R251 003  
R251 03.5  
R251 004  
R251 005  
R251 007  
R251 010  
R251 012  
R251 015  
R253.500  
R253.750  
R253 001  
1/2  
3/4  
125  
125  
125  
125  
125  
125  
125  
125  
125  
125  
0.280  
0.175  
0.128  
0.100  
0.0823  
0.0473  
0.0360  
0.0290  
0.0240  
0.0204  
0.0155  
0.0105  
0.00705  
0.0055  
0.00446  
0.0598  
0.153  
0.256  
0.390  
0.587  
0.405  
0.721  
1.19  
1.58  
2.45  
4.14  
10.4  
25.5  
45.2  
68.8  
0.1  
1
1
4
1 /  
1
2
R253 01.5  
R253 002  
1 /  
2
1
2
2 /  
R253 003  
R253 004  
R253 005  
R253 007  
R253 010  
3
1
2
0.01  
0.001  
3 /  
4
5
7
10  
12  
15  
125  
125  
125  
32  
R253 015  
32  
0.05 0.1  
1
10  
100  
1000  
Note: Higher Ampere Ratings Available.  
Contact Technical Assistance for Details  
CURRENT IN AMPERES  
386  
www. lit t elf us e. c om  
1

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