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UL Recognised
Wirewound Resistors
ULW Series
Terminations
Material:
Strength:
Solderability:
Hot tin dipped copper wire
The terminations meet the requirements of IEC 68.2.21
The terminations meet the requirements of IEC 115-1 Clause 4.17.3.2
Solvent Resistance
The body protection and marking are resistant to all normal industrial cleaning solvents suitable for printed circuits.
Flammability
The resistor coating will not burn or emit incandescent particles under any condition of applied temperature or power overload.
Performance Data
Maximum*
Typical
Load at rated power (1000 hours @ 25°C)
Short term overload (5 x Pr for 5 seconds)
Pulse (see Pulse Performance graphs)
Climatic
Long term damp heat (56 days)
Climatic category
Temperature rapid change
Dry heat (1000 hours @ 200°C)
Vibration
Robustness & solder heat
Δ R%
Δ R%
Δ R%
Δ R%
Δ R%
Δ R%
Δ R%
Δ R%
Δ R%
5
5
5
5
5
5
5
5
5
55/200/56
3
1
2
2
1
1
3
1
1
* Addition of 0.01 Ω applies
Thermal Performance
Derating Curve
Body Temperature Rise
100
80
300
250
ULW3
ULW4
200
60
150
ULW2
ULW5
40
100
20
50
0
0
50 100 150 200 250
Am bient Tem perature (°C)
300
0
0
1
2 3
Power (W)
4
5
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
? TT electronics plc
03.13
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相关代理商/技术参数 |
参数描述 |
|---|---|
| VDRS14T420BSE | 功能描述:VARISTOR 420V RMS 17MM LEADED RoHS:否 类别:过电压，电流，温度装置 >> TVS - 变阻器，MOV 系列:- 标准包装:1 系列:- 变阻器电压:33V 电流 - 浪涌:4A 电路数:1 最大交流电压:14VAC 最大直流电压:18VDC 能量:0.015J 封装/外壳:0402（1005 公制） 其它名称:478-6870-6 |
| VDRS14T420TLE | 制造商:Vishay Semiconductors 功能描述: |
| VDRS14T420TME | 制造商:Vishay Semiconductors 功能描述: |
| VDRS14T420TSE | 制造商:Vishay Angstrohm 功能描述:Var MOV 420VAC/560VDC 4500A 680V Radial T/R |
| VDRS14T460ALE | 制造商:Vishay Angstrohm 功能描述:Var MOV 460VAC/615VDC 4500A 750V Radial Ammo Pack |
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