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參數(shù)資料
| 型號(hào)： | APRX178LT |
| 英文描述： | PHOTOLINK Optical TX/RX Modules |
| 中文描述： | PHOTOLINK光發(fā)射/接收模塊 |
| 文件頁數(shù)： | 6/7頁 |
| 文件大?。?/td> | 279K |
| 代理商： | APRX178LT |
Ampson Technology, Inc.
APRX178L
!
PRECAUTIONS DURING USE
1) Maximum rating
The maximum ratings are the limit values which must not be exceeded during operating of device. None of
these rating value must not be exceeded. If the maximum rating value is exceeded, the characteristics of
devices may never be restored properly. In extreme cases, the device may be permanently damages.
2) Soldering
Optical modules are comprised of internal semiconductor devices. However, in principle, optical modules are
optical components. During soldering, ensure that flux dose not contact with the emitting surface or detecting
surface. Also ensure that proper flux removal is conducted after soldering.
Some optical modules come with protective cap. The protective cap is used to avoid malfunction when the
optical module is not in use. Note that it is not dust or waterproof.
As mentioned before, optical modules are optical components. Thus, in principle, soldering where there may
be flux residue or flux removal after soldering is not recommended. Ampson recommends that soldering be
performed without the optical module mounted on the board. Then, after the board has been cleaned, the
optical module should be soldered on to the board manually.
If the optical module cannot be soldered manually, use non-halogen (chlorine-free) flux and make sure,
without cleaning, there is no residue such as chlorine. This is one of the ways to eliminate the effects of flux.
In such a cases, be sure to check the devices’ reliability.
3) Noise resistance
It is believed that the use of optical transfer devices improve noise resistance. In theory, optical fiber is not
affected by noise at all. However, receiving modules which handle signals whose level is extremely small,
are susceptible to noise.
The optical module is to be used in an area which is susceptible to radiated noise, increase the shielding by
covering the optical module and the power line filter with a metallic cover.
4) Vibration and shock
This module is plastic sealed and has its wire fixed by resin. This structure is relatively resistant to vibration
and shock. In actual equipment, there are sometimes cases in which vibration, shock, and stress is applied
to soldered parts or connected parts, resulting in lines cut. A care must be taken in the design of equipment
which will be subject to high levels of vibration.
5) Support pins
The APRX178XX has support pins in order to fix itself to the PCB temporary. Please make the hole for these
pins in the PCB under the condition described in board layout hole pattern.
6) Panel attachment
APRX178XX has hole for panel attachment. Please be sure to attach it to panel with self-tapping screw.
6/7
12/5/2002 REV.1.0
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| APR-XAA | 功能描述:烙鐵 X-Axis Assembly Kit RoHS:否 制造商:Weller 產(chǎn)品:Soldering Stations 類型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大溫度:+ 850 F 電纜類型:US Cord Included |
| APR-XALSK | 功能描述:烙鐵 APR-5000 X-Axis Lock Solenoid Kit RoHS:否 制造商:Weller 產(chǎn)品:Soldering Stations 類型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大溫度:+ 850 F 電纜類型:US Cord Included |
| APR-XAM | 功能描述:烙鐵 XLXAxis Motor RoHS:否 制造商:Weller 產(chǎn)品:Soldering Stations 類型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大溫度:+ 850 F 電纜類型:US Cord Included |
| APR-XLABK | 功能描述:烙鐵 XL Action Button Kit W/PCB RoHS:否 制造商:Weller 產(chǎn)品:Soldering Stations 類型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大溫度:+ 850 F 電纜類型:US Cord Included |
| APR-XL-CA | 功能描述:烙鐵 XL Single Vision Camera RoHS:否 制造商:Weller 產(chǎn)品:Soldering Stations 類型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大溫度:+ 850 F 電纜類型:US Cord Included |
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