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参数资料
| 型号： | H-38-11 |
| 厂商： | Bourns Inc. |
| 文件页数： | 8/73页 |
| 文件大小： | 0K |
| 描述： | HDWR NUT MOUNTING FOR ECW ENCODR |
| 产品变化通告： | H-38-11 Hardware Change 26/Jul/2010 |
| 标准包装： | 1,000 |
| 产品目录页面： | 2575 (CN2011-ZH PDF) |
| 配用： | ECW1DB24BC0024-ND - ENCODER DIGITAL CONT 24 CPR ECW1JB24BC0024-ND - ENCODER DIGITAL CONT 24 CPR |
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Potentiometers
Selecting a Potentiometer
The Sensors and Controls Division has a
potentiometer to ?t many of your applications.
Whether you need a precision control with millions
of rotational life cycles or a commercial
potentiometer that ?ts in a hand-held radio, we have
a product selection that is second to none. No other
manufacturer offers a broader selection of
potentiometers than Bourns Sensors and Controls.
Types of potentiometers in the Sensors and Controls
product line include:
? Multiturn Precision
? Single-Turn Precision
? Panel Control
? Commercial Grade
Precision Potentiometers are used to provide an
accurate electrical output signal corresponding to a
mechanical position input, where accuracy, reliability
and long life are important. These devices are
generally designed for high reliability, long life in
continuous service, high accuracy and operation in
demanding environments.
Panel Control Potentiometers are used where the
frequency of adjustment is high and front panel
accessibility is required. These industrial grade
devices are designed for long rotational life with
emphasis on good adjustability.
Cermet Element Technology
Cermet elements are available in
a wide range of resistance values
and tapers. They offer essentially
in?nite resolution and excellent
stability in the most severe
environmental conditions. Static
and dynamic noise (CRV)
performance is good, although conductive plastic is
better. The temperature coef?cient of cermet
elements is better than conductive plastic or carbon
type elements, though not as good as wirewound
elements. Linearity is good but can be improved in
accuracy by utilizing laser-trimming technology.
Frequency response of cermet materials is very good.
The practical application range extends well beyond
100 MHz.
Conductive Plastic Element Technology
Conductive plastic thick ?lm ink is similar
to cermet, but has a smoother surface. This
characteristic offers several operational
advantages over cermet. Dynamic
noise characteristics (CRV or output
smoothness) and rotational life are
measurably improved and resolution is
essentially in?nite. Conductive plastic elements are
generally available in a wide range of resistance
values and tapers. Moisture resistance, temperature
coef?cient, power dissipation and wiper current
capacity for conductive plastic elements are not as
good as cermet elements.
Commercial Potentiometers are used in consumer
applications as lower cost alternatives to industrial
grade panel controls. These devices are designed for
moderate rotational life with emphasis on low cost.
In selecting a potentiometer for your application, the
most important characteristics to consider are the
type of element (cermet, conductive plastic, carbon,
wirewound and Hybritron?) and expected cycle life
of the product.
Carbon Element Technology
Carbon elements offer the most cost-
effective technology. A carbon-based
resistive ink is screened or sprayed
onto a phenolic or FR4 substrate.
Resistance ranges are limited,
beginning with 1 k ? and going as high as 1
M ? . Potentiometers using this element
technology are typically for commercial type
applications, with rotational life in the 10,000 to
15,000 cycles range.
7
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相关代理商/技术参数 |
参数描述 |
|---|---|
| H-381-14 | 制造商:ETC MOLEX-INACTIVE 功能描述:Cross Referenced to MOLEX - Part: MOL19193-0330 |
| H-381-38 | 制造商:ETC MOLEX-INACTIVE 功能描述:Cross Referenced to MOLEX - Part: MOL19193-0331 制造商:Molex 功能描述:Ring Tongue Terminal (1/0)AWG 48.77mm 21.34mm Electro-Tin Bag |
| H-38-14 | 功能描述:电位计工具及硬件 H-038 HARDWARE RoHS:否 制造商:Vishay/Spectrol 产品:Adapter Kit |
| H-38-15 | 功能描述:电位计工具及硬件 HARDWARE - NUT RoHS:否 制造商:Vishay/Spectrol 产品:Adapter Kit |
| H-381-56 | 制造商:ETC MOLEX-INACTIVE 功能描述:Cross Referenced to MOLEX - Part: MOL19193-0333 |
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