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| 型号： | 81A2A-B28-A10/A10L |
| 厂商： | Bourns Inc. |
| 文件页数： | 2/6页 |
| 文件大小： | 0K |
| 描述： | POT 1K OHM 5/8" SQ 2W CERMET |
| 标准包装： | 5 |
| 系列： | 81 |
| 电阻（欧姆）： | 1k |
| 功率（瓦特）： | 2W |
| 容差： | ±10% |
| 温度系数： | ±150ppm/°C |
| 匝数： | 单路 |
| 旋转： | 300° |
| 调节型： | 侧面调节 |
| 电阻材料： | 金属陶瓷 |
| 端接类型： | PCB 引脚 |
| 触动器长度： | 0.875"（22.22mm） |
| 触动器类型： | 开槽轴 |
| 触动器直径： | 0.250"（6.35mm） |
| 尺寸 - 主体： | 方形 - 0.625" L x 1.025" W x 0.625" H（15.88mm x 26.04mm x 15.88mm） |
| 安装类型： | 通孔 |
| 包装： | 散装 |
81/82 - 5/8 ” Square Single-Turn Panel Control
85/86 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch
Rotary Switch Speci?cations
Initial Electrical Characteristics 1
Contacts:
DPST ...............................................................................................................................................................................N.O/N.O.,N.C./N.C. or N.O./N.C.
DPDT ................................................................................................................................................................................2 N.O./N.C. (break before make)
Power Rating (Resistive Load):
DPST ............................................................................................................ 2 A @ 125 volts RMS-60 Hz or 2 A @ 28 VDC, 1 A @ 250 volts RMS-60 Hz
DPDT ........................................................................................................................................................... 1 A @ 125 volts RMS-60 Hz or 1 A @ 28 VDC
Contact Resistance (0.1 VDC-10 mA) ..................................................................................................................................................... 10 milliohms nominal
Contact Bounce ................................................................................................................................................................................ 5 milliseconds maximum
Dielectric Withstanding Voltage (MIL-STD-202, Method 301)
Sea Level ............................................................................................................................................................................................. 1500 VAC minimum
Insulation Resistance ....................................................................................................................................................................... 1000 megohms minimum
Environmental Characteristics 1
Operating Temperature Range ....................................................................................................................................................................... -40 °C to +70 °C
Storage Temperature Range ........................................................................................................................................................................ -65 °C to +125 °C
Vibration (Dual Section) ....................................................................................................................................................................................................... 8 G
(Triple Section) .................................................................................................................................................................................................... 5 G
(Quadruple Section) ........................................................................................................................................................................................... 3 G
Contact Resistance ........................................................................................................................................................................ 10 milliohms maximum
Contact Bounce ......................................................................................................................................................................... 0.1 millisecond maximum
Shock (Dual Section) ......................................................................................................................................................................................................... 20 G
(Triple Section) ...................................................................................................................................................................................................... 15 G
(Quadruple Section) ............................................................................................................................................................................................. 10 G
Contact Resistance ........................................................................................................................................................................ 10 milliohms maximum
Contact Bounce ......................................................................................................................................................................... 0.1 millisecond maximum
Rotational Life ..................................................................................................................................................................................................... 25,000 cycles
Switch Actuating Torque (50% Duty cycle @ Rated Power Load) .................................................................................. 1.41 to 4.94 N-cm (2 to 7 oz.-in.)
Contact Resistance ...................................................................................................................................................................... 100 milliohms maximum
Moisture Resistance (MIL-STD-202, Method 106, Condition B)
Contact Resistance (0.1 VDC-10 mA) ............................................................................................................................................ 10 milliohms maximum
Insulation Resistance (After 24 Hours @ Room Temperature) (500 VDC) .................................................................................... 100 megohms minimum
Switch Housing Material ................................................................................................................. High temperature, ?ame retardant, thermosetting plastic
Mechanical Characteristics 1
Actuating Torque (Each Section, Switch Module Only) ....................................................................................................... 3.53 to 10.6 N-cm (5 to 15 oz.-in.)
Running Torque (Out of Detent, 2-4 Module Assembly)..................................................................................................... 0.21 to 1.41 N-cm (0.3 to 2 oz.-in.)
Detent ..................................................................................................................................................................................................... CW or CCW standard
Actuation Angle ...................................................................................................................................................................................................................25 °
Contact Materials ..........................................................................................................................................................................Fine silver with gold overlay
Terminal Styles .................................................................................................................................................................................................. Solder lug only
Standard Orientation ..............................................................................................................................................................In-line with control terminals
Optional .......................................................................................................................................................................... Rotated 90 ° CCW from standard
Terminal Strength (Before and After Soldering Heat Exposure) .......................................................................................................... 0.9 Kg (2 lbs.) minimum
NOTE: Model 81/82 performance speci?cations do not apply to units subjected to printed circuit board cleaning procedures.
1At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.
Speci?cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their speci?c applications.
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