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参数资料
| 型号： | 81A1A-B28-B25L |
| 厂商： | Bourns Inc. |
| 文件页数： | 2/6页 |
| 文件大小： | 0K |
| 描述： | POT 1M OHM 5/8" SQ 1/2W PLAS |
| 标准包装： | 5 |
| 系列： | 81 |
| 电阻（欧姆）： | 1M |
| 功率（瓦特）： | 0.5W，1/2W |
| 容差： | ±20% |
| 温度系数： | ±1000ppm/°C |
| 匝数： | 单路 |
| 旋转： | 300° |
| 调节型： | 侧面调节 |
| 电阻材料： | 导电塑料 |
| 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 0.625" W x 0.625" H（15.88mm x 15.88mm 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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相关代理商/技术参数 |
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| 81A1A-B28-C18 | 功能描述:电位计 5/8" 50K 10% Square Single Turn RoHS:否 制造商:Bourns 产品:Musical Syst Potentiometer 安装风格:Panel 锥度:Audio, Linear 转数: 电阻:500 kOhms 元件类型:Carbon 轴类型:Round / Plain 端接类型:Solder Lug 电压额定值:200 V 功率额定值:0.2 W 容差:20 % |
| 81A1A-B28-D10 | 功能描述:电位计 5/8" 1K 20% Square Single Turn RoHS:否 制造商:Bourns 产品:Musical Syst Potentiometer 安装风格:Panel 锥度:Audio, Linear 转数: 电阻:500 kOhms 元件类型:Carbon 轴类型:Round / Plain 端接类型:Solder Lug 电压额定值:200 V 功率额定值:0.2 W 容差:20 % |
| 81A1A-B28-D13 | 功能描述:电位计 5/8" 5K 20% Square Single Turn RoHS:否 制造商:Bourns 产品:Musical Syst Potentiometer 安装风格:Panel 锥度:Audio, Linear 转数: 电阻:500 kOhms 元件类型:Carbon 轴类型:Round / Plain 端接类型:Solder Lug 电压额定值:200 V 功率额定值:0.2 W 容差:20 % |
| 81A1A-B28-D15 | 功能描述:电位计 5/8" 10K 20% Square Single Turn RoHS:否 制造商:Bourns 产品:Musical Syst Potentiometer 安装风格:Panel 锥度:Audio, Linear 转数: 电阻:500 kOhms 元件类型:Carbon 轴类型:Round / Plain 端接类型:Solder Lug 电压额定值:200 V 功率额定值:0.2 W 容差:20 % |
| 81A1A-B28-D18 | 功能描述:电位计 5/8" 50K 20% Square Single Turn RoHS:否 制造商:Bourns 产品:Musical Syst Potentiometer 安装风格:Panel 锥度:Audio, Linear 转数: 电阻:500 kOhms 元件类型:Carbon 轴类型:Round / Plain 端接类型:Solder Lug 电压额定值:200 V 功率额定值:0.2 W 容差:20 % |
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