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TRF250-120UT PDF预览

TRF250-120UT

更新时间: 2024-10-29 13:45:23
品牌 Logo 应用领域
力特 - LITTELFUSE 温度传感电信电阻器
页数 文件大小 规格书
2页 436K
描述
我们的PolySwitch®系列电信和网络设备有助于满足对自恢复过流保护不断增长的需求。 该系列产品可针对ITU、Telcordia GR1089和IEC 62368-1中定义的电流交叉和电源感应

TRF250-120UT 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active包装说明:RADIAL LEADED, ROHS COMPLIANT
Reach Compliance Code:unknown风险等级:1.58
Base Number Matches:1

TRF250-120UT 数据手册

 浏览型号TRF250-120UT的Datasheet PDF文件第2页 
PRODUCT: TRF250-120S-B-0.5  
DOCUMENT: SCD26481  
REV LETTER: E  
REV DATE: JULY 26,2016  
PAGE NO.: 1 OF 2  
PolySwitch®  
PTC Devices  
Overcurrent Protection Device  
Specification Status: Released  
Operating Conditions at 20°C:  
Maximum Continuous Operating Voltage (VMCO): 60V
Maximum Interrupt Current (IINT ): 3ARMS  
Fault Ratings at 20°C:  
250 VRMS, 3A, 10 applications  
Additional Info at 20°C:  
Resistance matched: 0.5 Ohm  
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 intrabuil
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  
(0.26)  
MIN  
--  
--  
MAX  
10.0  
(0.39)  
MIN  
--  
--  
MAX  
4.6  
(0.18) (0.19)  
MIN  
4.7  
MAX  
--  
--  
NOM  
5.0  
(0.20)  
MAX  
7.0  
(0.28)  
mm:  
in:*  
*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  
0.120  
0.240  
4.0  
8.0  
16.0  
1.5  
2.5  
-40  
85  
0.8  
0.9  
* Maximum device resistance at 20°C measured 1 hour post trip  
TABLE III. APPLICABLE PART DESCRIPTIONS:  
PART DESCRIPTION  
PACKAGING TYPE  
NOTES  
TRF250-120S-B-0.5  
Bulk  
N/A  
Agency Recognitions:  
Reference Documents:  
Precedence:  
UL (File # E74889), CSA (File #78165), TUV  
PS300, ITU-T K.20  
This specification takes precedence over documents referenced herein.  
Effectivity:  
Reference documents shall be the issue in effect on the date of invitation for bid.  
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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