参数资料
型号: TRF250-145U
厂商: TE Connectivity
文件页数: 1/1页
文件大小: 0K
描述: POLYSWITCH 0.145A HOLD UNENCAPS
产品培训模块: Circuit Protection Products
产品目录绘图: TRF250-(080,120,145)U Side
TRF250-(120,145)U Front
标准包装: 500
系列: PolySwitch®
电流 - 维持(Ih): 145mA
电流 - 跳闸(It): 290mA
电流 - 最大: 3A
电压 - 最大: 60V
R最小/最大: 3.500 ~ 6.500 欧姆
跳闸时间: 4s
封装/外壳: 径向
包装: 散装
产品目录页面: 2402 (CN2011-ZH PDF)
其它名称: RF0027-000
PolySwitch?
PTC Devices
Overcurrent Protection Device
PRODUCT: TRF250-145U
DOCUMENT: SCD26223
REV LETTER: F
REV DATE: MAY 11, 2011
PAGE NO.: 1 OF 1
Specification Status: Released
Operating Conditions at 20 ° C:
Maximum Continuous Operating Voltage (V MCO ): 60V DC
Maximum Interrupt Current (I INT ): 3A RMS
Fault Ratings at 20°C:
250V RMS , 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:
None
Marking:
TABLE I. DIMENSIONS:
A B
C
D
E
F
MIN MAX MIN MAX
MIN
MAX
MIN
MAX
NOM
MIN
MAX
mm:
-- 6.0 -- 10.0
--
3.8
4.7
--
5.0
--
6.0
in: -- (0.24) -- (0.39)
--
(0.15)
(0.19)
--
(0.20)
--
(0.24)
*Rounded off approximation
TABLE II. PERFORMANCE RATINGS @ 20°C:
HOLD
TRIP
RESISTANCE ( )
TIME TO TRIP(Sec)
OPERATING
TRIPPED
CURRENT CURRENT
@ 1A
TEMPERATURE
POWER DISSIPATION
(A)
(A)
(°C)
(W) @ 60V DC
R MIN R MAX
R 1 MAX *
TYP
MAX
MIN MAX
TYP MAX
0.145 0.290 3.5 6.5 14.0
2.0
4.0
-40 85
0.7 0.8
*Post Trip Resistance measured after one hour.
TABLE III. APPLICABLE PART DESCRIPTIONS:
PART DESCRIPTION
TRF250-145U
PACKAGING TYPE
Bulk
NOTES
N/A
Agency Recognitions:
Reference Documents:
Precedence:
Effectivity:
CAUTION:
Materials Information
UL (File #E74889), CSA (File #78165C), TUV
Raychem 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.
Operation beyond the rated voltage or current may result in rupture, electrical arcing or flame.
ROHS Compliant
ELV Compliant
Pb-Free
? 2006, 2011 Tyco Electronics Corporation, a TE Connectivity Ltd. Company. All rights reserved.
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TRF250-145U-2 功能描述:可复位保险丝 - RoHS:否 制造商:Bourns 电流额定值: 电阻:7.5 Ohms 最大直流电压: 保持电流:0.1 A 安装风格:SMD/SMT 端接类型:SMD/SMT 跳闸电流:0.6 A 引线间隔: 系列:MF-PSHT 工作温度范围:- 40 C to + 125 C
TRF250-145US 功能描述:可复位保险丝 - RoHS:否 制造商:Bourns 电流额定值: 电阻:7.5 Ohms 最大直流电压: 保持电流:0.1 A 安装风格:SMD/SMT 端接类型:SMD/SMT 跳闸电流:0.6 A 引线间隔: 系列:MF-PSHT 工作温度范围:- 40 C to + 125 C
TRF250-145US-2 功能描述:可复位保险丝 - RoHS:否 制造商:Bourns 电流额定值: 电阻:7.5 Ohms 最大直流电压: 保持电流:0.1 A 安装风格:SMD/SMT 端接类型:SMD/SMT 跳闸电流:0.6 A 引线间隔: 系列:MF-PSHT 工作温度范围:- 40 C to + 125 C
TRF250-145US-B-0.5 功能描述:可复位保险丝 - RoHS:否 制造商:Bourns 电流额定值: 电阻:7.5 Ohms 最大直流电压: 保持电流:0.1 A 安装风格:SMD/SMT 端接类型:SMD/SMT 跳闸电流:0.6 A 引线间隔: 系列:MF-PSHT 工作温度范围:- 40 C to + 125 C
TRF250-145UST-B-0.5 功能描述:可复位保险丝 - RoHS:否 制造商:Bourns 电流额定值: 电阻:7.5 Ohms 最大直流电压: 保持电流:0.1 A 安装风格:SMD/SMT 端接类型:SMD/SMT 跳闸电流:0.6 A 引线间隔: 系列:MF-PSHT 工作温度范围:- 40 C to + 125 C