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TRF250-145T-2 PDF预览

TRF250-145T-2

更新时间: 2024-10-28 15:55:03
品牌 Logo 应用领域
力特 - LITTELFUSE 过载保护电阻器
页数 文件大小 规格书
2页 342K
描述
PTC Thermistor, Through Hole Mount, RADIAL LEADED, ROHS COMPLIANT

TRF250-145T-2 技术参数

是否无铅:不含铅生命周期:Active
包装说明:,Reach Compliance Code:unknown
风险等级:5.58Is Samacsys:N
其他特性:7.5 OHMS AT 20 DEG CELJESD-609代码:e3
安装特点:THROUGH HOLE MOUNT端子数量:2
最高工作温度:85 °C最低工作温度:-40 °C
封装形状:RECTANGULAR PACKAGE包装方法:TR
额定(AC)电压(URac):250 V电阻器类型:PTC THERMISTOR
表面贴装:NO端子面层:TIN
端子位置:RADIAL端子形状:WIRE
热敏电阻器应用:OVERLOAD PROTECTIONBase Number Matches:1

TRF250-145T-2 数据手册

 浏览型号TRF250-145T-2的Datasheet PDF文件第2页 
PRODUCT: TRF250-145T  
PolySwitch®  
DOCUMENT: SCD26222  
REV LETTER: F  
REV DATE: JULY 26, 2016  
PAGE NO.: 1 OF 2  
PTC Devices  
Overcurrent Protection Device  
Specification Status: Released  
Operating Conditions at 20°C:  
Maximum Continuous Operating Voltage (VMCO): 60VDC  
Maximum Interrupt Current (IINT ): 3ARMS  
Fault Ratings at 20°C:  
250VRMS, 3A, 10 applications  
Additional Info at 20°C:  
Resistance matched: n/a  
Lightning withstand: 1.5 kV per ITU-T K.20, K.21  
Helps equipment meet ITU-T K.20, K.21 Recommendations  
Helps equipment meet Telcordia GR1089 intrabuilding  
requirements  
Lead Material:  
22 AWG Sn-Plated Copper (0.64 mm [0.025] nominal diameter)  
External Coating Material:  
Cured, flame retardant epoxy polymer, meeting UL94 V-0  
requirements  
Marking:  
TABLE I. DIMENSIONS:  
A
B
C
D
E
F
MIN  
--  
MAX  
6.5  
MIN  
--  
MAX  
11.0  
MIN  
--  
MAX  
MIN  
MAX  
--  
NOM  
MIN  
--  
MAX  
7.0  
mm:  
in:  
4.6  
4.7  
5.0  
--  
(0.26)  
--  
(0.43)  
--  
(0.18) (0.19)  
--  
(0.20)  
--  
(0.28)  
*Rounded off approximation  
TABLE II. PERFORMANCE RATINGS @ 20°C:  
HOLD  
CURRENT CURRENT  
TRIP  
RESISTANCE (Ω)  
TIME TO TRIP(Sec)  
@ 1A  
OPERATING  
TEMPERATURE  
(°C)  
TRIPPED  
POWER  
DISSIPATION  
(W) @ 60VDC  
(A)  
(A)  
R MIN R MAX R1 MAX  
*
TYP  
MAX  
MIN  
MAX  
TYP  
MAX  
0.145  
0.290  
5.4  
7.5  
14.0  
1.5  
2.5  
-40  
85  
0.8  
0.9  
*Post Trip Resistance measured after one hour.  
TABLE III. APPLICABLE PART DESCRIPTIONS:  
PART DESCRIPTION  
PACKAGING TYPE  
NOTES  
TRF250-145T  
Bulk  
N/A  
Agency Recognitions:  
Reference Documents:  
Precedence:  
UL (File #E74889), CSA (File #78165C), TUV  
PS300, ITU-T K.20, K.21  
This specification takes precedence over documents referenced herein.  
Reference documents shall be the issue in effect on the date of invitation for bid.  
Effectivity:  
CAUTION:Operation beyond the rated voltage or current may result in rupture, electrical arcing or flame.  
Materials Information  
ROHS Compliant  
ELV Compliant  
Pb-Free  
© 2016 Littelfuse,Inc.  
littelfuse.com  
Specifications are subject to change without notice.  
Revised July 26,2016  

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