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250R080TDR PDF预览

250R080TDR

更新时间: 2024-10-15 13:03:59
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力特 - LITTELFUSE /
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250R080TDR 数据手册

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POLYFUSE® Resettable PTCs  
Radial Leaded  
250R Series  
Description  
• The 250R series is designed to protect against short  
duration high voltage fault currents (power cross or  
power induction surge) typically found in telecom  
applications (250Vrms). The series can be used to help  
telecom networking equipment meet the protection  
requirements specified in ITU K.20 and K.21.  
Features  
• RoHS compliant and  
lead-free  
• Fast time-to-trip  
• 0.08 – 0.18 Hold current  
range, 60VDC operating  
voltage  
Agency Approvals  
• Binned and sorted narrow  
resistance ranges available  
• 250VAC interrupt rating  
AGENCY  
AGENCY FILE NUMBER  
E183209  
Applications  
R50082521  
• Customer Premises  
Equipment (CPE)  
• LAN/WAN Equipment  
• Access equipment  
• Central Office (CO)/  
Telecom Centers  
Electrical Characteristics  
Maximum Time  
Agency  
Resistance  
R typ  
P
Vmax  
/ V  
To Trip  
Approvals  
madx.  
(W)  
I hold  
(A)  
I trip  
(A)  
I max  
(A)  
Part Number  
R min  
(Ω)  
R 1max  
(Ω)  
V
Current  
Time  
int  
op  
(A)  
0.35  
0.35  
1
(Sec.)  
(Ω)  
22  
22  
8
250R080T  
250R080  
0.08  
0.08  
0.12  
0.12  
0.12  
0.12  
0.12  
0.12  
0.12  
0.12  
0.145  
0.145  
0.145  
0.145  
0.18  
0.18  
0.16  
0.16  
0.24  
0.24  
0.24  
0.24  
0.24  
0.24  
0.24  
0.24  
0.29  
0.29  
0.29  
0.29  
0.65  
0.65  
250/60  
250/60  
250/60  
250/60  
250/60  
250/60  
250/60  
250/60  
250/60  
250/60  
250/60  
250/60  
250/60  
250/60  
250/60  
250/60  
3
3
1
1
3
3
15  
14  
4
33  
33  
16  
16  
14  
16  
16  
16  
16  
16  
14  
12  
14  
14  
4
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
250R120  
3
1
1.5  
1.0  
0.85  
0.7  
0.8  
0.7  
1
250R120-RA  
250R120-RC  
250R120-RF  
250R120-R1  
250R120-R2  
250R120-R3  
250R120T  
250R145  
3
1
1
7
9
3
1
1
5.4  
6
7.5  
10.5  
9
3
1
1
3
1
1
6
3
1
1
8
10.5  
10  
12  
6
3
1
1
8
3
1
1
1.2  
2.5  
5
7
3
1
1
3
250R145-RA  
250R145-RB  
250R145T  
250R180  
3
1
1
3
5.5  
6
3
1
1
2.5  
2.0  
21  
4.5  
5.4  
0.8  
1.4  
3
1
1
7.5  
2.2  
3.9  
10  
10  
1.8  
1.8  
1
250R180T  
1
20  
4.5  
*typical value  
C: coated device  
T: pre-tripped device  
250R Series  
www.littelfuse.com  
©2006 Littelfuse  
Specifications are subject to change without notice.  
Electronics Designers Guide  

250R080TDR 替代型号

型号 品牌 替代类型 描述 数据表
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