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BOURNS
3590S电位器技术参数
电气特性（Electrical Characteristics）
5K可调电阻 BOURNS多圈精密电位计 3590S-2-502L
标准阻值范围(Standard Resistance Range）..........................200 to 100K ohms
阻值允许偏差(Resistance Tolerance）..........................................±5 %
立线性度(Independent Linearity)..........................................±0.25%
有效旋转角度(Effective Electrical Angle)......................3600 ° +10 °, -0 °
小阻值(Absolute Minimum Resistance）......................1 ohm or 0.1 % maximum
(whichever is greater)
噪音(Noise)...................................................100 ohms ENR maximum
耐电压(Dielectric Withstanding Voltage)(MIL-STD-202, Method 301)
海平面（Sea Level）..............................................1,500 VAC minimum
额定功率(Power Rating)(Voltage Limited By Power Dissipation or 450 VAC, Whichever is Less)
+40 °C..................................................................2 watts
+125 °C..................................................................0 watt
绝缘电阻(Insulation Resistance)(500 VDC)....................1,000 megohms minimum
分辨率(Resolution) ..................................See recommended part numbers

环境特性(Environmental Characteristics)

工作温度范围(Operating Temperature Range).......................+1 °C to +125 °C
储存温度范围(Storage Temperature Range)........................-55 °C to +125 °C
温度系数范围(Temperature Coefficient Over Storage Temperature Range2)
.........................................................±50 ppm/°C maximum/unit
震动(Vibration)...............................................................15 G
电刷返回(Wiper Bounce).....................................0.1 millisecond maximum
冲击(Shock)...................................................................50 G
高温负荷寿命(Load Life).......................................1,000 hours, 2 watts
总阻变化(Total Resistance Shift).....................................±2 % maximum
旋转寿命(Rotational Life) (No Load)....................1,000,000 shaft revolutions
总阻变化(Total Resistance Shift).....................................±5 % maximum
防潮性(Moisture Resistance) (MIL-STD-202, Method 103, Condition B)
总阻变化(Total Resistance Shift).....................................±2 % maximum
防护等级(IP Rating)
密封对象（Sealed Versions） (-3, -4, -7, and -8) ............................IP 65
不密封对象(Unsealed Versions) (-1 -2, -5, and -6)............................IP 40

机械特性(Mechanical Characteristics)

终端止档强度 (Stop Strength)..........................45 N-cm (64 oz.-in.) minimum
机械角度(Mechanical Angle)....................................3600 ° +10 °, -0 °
扭矩(Torque) (Starting & Running).......0.35 N-cm (0.5 oz.-in.) maximum (unsealed)
1.1 N-cm (1.5 oz.-in.) maximum (sealed)
固定方式(Mounting)..............................55-80 N-cm (5-7 lb.-in.) (plastic)
90-113 N-cm (8-10 in.-lb.) (metal)
轴摆度(Shaft Runout).....................................0.13 mm (0.005 in.) T.I.R.
横向摆动(Lateral Runout).................................0.20 mm (0.008 in.) T.I.R.
轴端游隙(Shaft End Play).................................0.25 mm (0.010 in.) T.I.R.
转轴径向跳动(Shaft Radial Play)..........................0.13 mm (0.005 in.) T.I.R.
引导径向跳动(Pilot Diameter Runout)......................0.08 mm (0.003 in.) T.I.R.
侧隙(Backlash)......................................................1.0 ° maximum
重量(Weight)....................................................Approximately 19 G
终端设备(Terminals).........................................Solder lugs or PC pins
浸焊条件(Soldering Condition)
手焊(Manual Soldering)...................96.5Sn/3.0Ag/0.5Cu solid wire or no-clean
活性松香焊锡丝(rosin cored wire); 370 °C (700 °F) max. for 3 seconds
波动焊接(Wave Soldering)...96.5Sn/3.0Ag/0.5Cu solder with no-clean flux; 260 °C (500 °F) max.
for 5 seconds
清洗过程(Wash processes)..........................................Not recommended
标记(Marking)..........Manufacturer’s name and part number, resistance value and
tolerance, linearity tolerance, wiring diagram, and date code.
机械连接(Ganging )(Multiple Section Potentiometers).................1 cup maximum
五金器具(Hardware).....One lockwasher and one mounting nut is shipped with each potentiometer.