NTC 5D-11.doc.2009-4-30.doc

1 、一般参数（Common Parameters） ： ( 1 ) 尺寸（mm）（Size） D L1L2FTdMax11.5Min6.54.00.57.5+1.0Max60.8+0.06 （2）材料 （Materials） 封装材料（Wrapper） ：聚硅树脂（Polysilicone） 引线（Down-lead） ：CP线（CP Wire） 颜色（Coating color） ：绿硅 2、主要技术参数（Parameters of Technology）: 25时零功率电阻值（）( Zero Power Resistance at 25 ) ：520% B 值（K）( B Value) ：2800 热时间常数(S) (Thermal Time Constant) ：44 热耗散系数（mW/）（Thermal Dissipation Constant ） ：17 工作温度（）（Operating Temperature） ：-40 - +200 最大稳态电流(A)（Max Steady State Current） ：4最大冲击电容量(F)（Max. Shock Capacity） ：470术语名称Terms说 明Description性能要求Requirement零功率电阻值Zero Power Resistance 在25下，当由于电阻体内部发热引起的电阻值变化相对于总测量误差可以忽略不计时所测得的电阻值。At 25, the measured resistance value when the the change of the resistance owing to its self-heat of the the resistor can be neglected compared to the general tolerance.见电特性参数See Electrical ParametersB 值B Value B值可以用25时和50时的零功率电阻值计算出来。其计算式是： T1T2 R1B= ln（ ） T2 - T1 R2 The B value can be calculated using the zero power resistance value at 25 and 50. The equation is as above.见电特性参数See Electrical Parameters热耗散系数Thermal Dissipation Constant在规定的温度下，热敏电阻中耗散的功率变化与热敏电阻相应温度变化之比。其单位：mW/The ratio of the change of the dissipation power to the corresponding change of the temperature at specified temperature. The unit is: mW/.见电特性参数See Electrical Parameters热时间常数Thermal Time Constant在零功率条件下，当温度发生变化时，热敏电阻的温度变化为其初始的和最终的温度差的63.2%所需的时间。Under zero power condition, thermal time constant is the time required by a thermistor that its body temperature reach 63.2% of the difference between its initial and final temperature.见电特性参数See Electrical Parameters工作温度Operating Temperature热敏电阻器长期连续工作所允许的温度范围。Allowable temperature range while the thermistor work continuously for long time.-40 +200额定温度Rated Temperature在工作电流工作时的温度变化范围。The temperature range at operating current.-40+200最大稳态电流 Max.Steady State Current通电后,电流达到稳态时,热敏电阻所承受的最大电流.The max current that the thermistor can endure when the current is steady.无可见性损伤,标志清晰 R/R15%No visible damage, the mark is clear.术语名称Terms说 明Description性能要求Requirement稳态湿热Damp Heat温度402，相对湿度933%，存放482小时后，在正常状态下1小时。The sample should be subjected to 402 ,relative humidity 933% for 482 hours, then stored at room temperature and humidity for 1 hour.无可见损伤、标志清晰、无击穿或飞弧 绝缘电阻大于100M.电阻值的最大变化率在15%以内No visible damage, the mark is clear, no breakdown or arcing. Insulating resistance is 100M. The change ratio of the resistance is within 15%. 耐 电 压Withstand Voltage施加1500V电压，时间 1分钟, 电压加在电阻器引线与绝缘层之间。Applied voltage of 1500V between the lead of the resistor and the insulating coating for 1 minute. 无击穿或飞弧No breakdown or arcing.耐焊接热Resistance to Soldering Heat 将热敏电阻器引线在25010的焊锡液里，液面距电阻体6mm时间3 秒。在室温下恢复到原来的状态。Immerse the lead of the resistor into tin liquor of 25010 for 3 sec, the distance from the liquor surface to the resistor is 6mm. Then resume to the original state.无可见损伤、电阻值的最大变化率在15%以内No visible damage. The max change ratio of the resistance is within 15%. 可 焊 性Solderability引线浸在25010的锡液里，时间3秒。浸焊温度：2405手焊温度：2605（5S）Immerse the lead into tin liquor of 25010 for 3 sec.The temperature of immerse welding: 2405The temperature of hand welding: 2605（5S） 焊锡涂布面积在95%以上The covered surface area should be above 95%.术语名称Terms说 明Description性能要求Requirement引出端变曲强度Bending Strength of Terminals固定电阻体,在一根引出端悬挂0.5kg重力变曲90度；然后再回复，再把方向弯曲90度Fix the resistor, hanging a force of 0.5kg to one terminal to bend it by 90 degree, then resume to the original state, bend it by 90 degree again.无可见损伤No visible damage.振动Vibration频率：10-50Hz;振幅：1.55mm方向和时间：X、Y及Z轴各2小时Frequency: 10-50Hz Wave Amplitude: 1.55mmDirection and Time: 2 hours respectively for X, Y and Z axis.无机械损伤No mechanical damage温度快