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| 型号： | 4ASH901 |
| 厂商： | MEC Switches |
| 文件页数： | 46/48页 |
| 文件大小： | 0K |
| 描述： | SWITCH TACTILE SPST-NO 0.05A 24V |
| 产品目录绘图： | 4ASH9 Series |
| 标准包装： | 50 |
| 系列： | Multimec® |
| 电路： | SPST-NO |
| 开关功能： | 关-瞬时 |
| 触点额定电压： | 0.05A @ 24VDC |
| 触动器类型： | 帽盖 |
| 安装类型： | 表面贴装 |
| 从引脚算起，致动器距离 PCB 的高度： | 8.40mm |
| 致动器方向： | 顶部触动 |
| 端接类型： | 鸥翼型 |
| 外形： | 10.10mm x 10.10mm |
| 发光： | 发光 |
| 发光电压： | 3.35 VDC |
| 发光类型，颜色： | LED，蓝 |
| 操作力： | 300gf |
| 防护等级： | IP67 - 防尘，防水 |
| 特点： | 密封式 - 焊剂防护 |
| 包装： | 管件 |
| 触动器材料： | 聚苯硫醚（PPS） |
| 开关行程： | 1.00mm |
| 机械寿命： | 10,000,000 次循环 |
| 工作温度： | -30°C ~ 85°C |
| 产品目录页面： | 2468 (CN2011-ZH PDF) |
| 相关产品： | 679-2197-ND - BEZEL SWITCH DUSTY BLUE 679-2196-ND - BEZEL SWITCH MELON 679-2195-ND - BEZEL SWITCH ULTRA BLUE 679-2194-ND - BEZEL SWITCH BLACK 679-2193-ND - BEZEL SWITCH RED 679-2192-ND - BEZEL SWITCH WHITE 679-2191-ND - BEZEL SWITCH YELLOW 679-2190-ND - BEZEL SWITCH GREY 679-2189-ND - BEZEL SWITCH BLUE 679-2100-ND - CAP SWITCH BLACK/ RED LENS 更多... |
| 其它名称： | 679-2235 |
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46
mec
Usage Guidelines
How to get the best results with mec switches
These guidelines are offered to users of mec switches as an aid to
ensure successful and reliable switch operation.
Temperature
Both Unimec? and Multimec ? switches are produced in standard and
high temperature versions. Please see the technical specifications
for details on operating and storage temperatures and soldering
guidelines to make sure you select the best switch for your application.
When wave soldering is taking place, mec strongly recommend
that the temperature profile is analyzed and compared with the
temperature rating of the switch. In case of doubt always select the
high temperature versions Unimec? 154XX and Multimec ? 3XXHX. It is
also important to monitor the accumulated heat build up from both the
pre-heat zones and the solder zone.
Most standard accessories for both Unimec? and Multimec ? switches
are made from ABS plastic with a maximum operating temperature of
65°C. It is strongly recommended that accessories are mounted after
soldering of the switch. If this is not possible care must be taken not
to overheat the accessories during the soldering process. Actuators
for the 3EXX9, the 1S09 and Varimec? caps are, however, made
of high temperature materials and will meet the same temperature
specifications as the high temperature switches.
For accessories made from other plastic materials please see Multimec
and Unimec technical specifications.
LEDs have their own temperature specifications. When fitted in a
high temperature switch the LED will determine the max. operating
temperature, i.e. 3FTH923 has an upper temperature limit of 85°C – not
160°C! This also applies to the 4A and 4F switches.
Contact contamination may be recognized by an increase in contact
resistance and possible intermittent operation of the switch, especially
in low power applications. Care must be taken not to submerge the
switch in cleaning agents or spray the switch during cleaning. The
switch must be protected at all times to prevent contamination by flux
or cleaning liquids.
For Unimec? alternate versions we recommend to leave the actuator
in the released upper position during soldering. This makes the switch
more resistent to overheating.
Soldering and Cleaning Multimec ?
Multimec ? switches are fully sealed to IP67 specifications to prevent
solder flux and aqueous or solvent based cleaning solutions from
entering the switch and contaminating the contacts. The switches can
be placed on the PC board with other components and wave soldered.
Multimec ? offers a high level of sealing, however, with aqueous solvent
solutions care must be taken to avoid the worst case situation with
water jets, complete immersion into a liquid with a temperature below
the board or surface tension reducing additives.
Recommended cleaning methods are demineralized water. Any surface
tensions reducing agents, such as soap, must not be used as they risk
causing a potential leakage of the switch.
Soldering - Through Hole Versions
Hand soldering: Max 350°C for max. 3 sec., this applies for both low
temperature and high temperature versions.
Wave soldering: Heat built up in the switch during pre-heating and
soldering must not exceed the maximum operating temperature of the
switch. If, for some reason, a high pre-heating temperature is required,
mec recommend the high temperature switches. In any case peak
temperature must not exceed 260°C, and soldering time is max. 10
sec.
Mounting and Dismounting
If switches are to be mounted in rows it is essential that the
recommendations regarding spacing are followed. PC board thickness
should be 1.2 to 1.6 mm and terminal hole diameter should be 0.9 mm.
Soldering - Surface Mount Versions
For all methods – infrared, convection and vapour phase. The upper
limit 260°C/30 sec. must be observed. The soldering temperature
profile must have moderate temperature gradients.
All Unimec? and Multimec ? caps and bezels are easily snapped
onto the switch modules and can be changed at a later time with the
exception of the Unimec? 16.700 cap. The same applies to the 3E
caps/actuators. Once these caps are installed they are not designed
to be removed. To do so may cause damage to the switch and the PC
board if not done very carefully. If the 16.300 or 16.700 cap must be
removed from a Unimec? alternate action switch, make sure that the
switch actuator is in the released, upper position before attempting
RoHS Compliance
As of 1 July 2006 mec has completed the conversion to RoHS
compliance. A separate part number system assures that there will
not be any risk for mixing products in the supply chain. For more info
please see our homepage www.mec.dk
General Temperature Limits:
to remove the cap. This will prevent possible damage to the internal
latching pin.
Care must be taken when inserting the 3FT switch and LED assembly
into the PC board. Do not press direct on the LED. This will force the
Low Temperature
High Temperature
LEDs
Accessories
115°C
160°C
85/100°C
65/85/160°C
LED down into the actuator and risks to cause the switch contacts
to remain in the closed position. To correct the fault, the LED must
be raised slightly and centered in the actuator to assure unrestricted
movement of the actuator. A mounting tool is available for Multimec ?
switches.
Soldering and Cleaning Unimec?
Packaging
Unimec? and Multimec ? switches are packed in rigid tubes of 50
pieces each.
A box contains 1.000 pcs.
The surface mount versions of Multimec ? switches with a height up
to 12.5 mm can also be delivered on tape/reel. Each reel contains
250/500 pcs.
Most assembly and field problems experienced by users of unsealed
switches are caused by the contamination of the contacts during
soldering and cleaning.
For updates of products and/or changes of specifications please see www.mec.dk
mec
|
www.mec.dk
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| 4ASH922 | 功能描述:SWITCH TACTILE SPST-NO 0.05A 24V RoHS:是 类别:开关 >> 触摸 系列:Multimec® 标准包装:2,000 系列:LPH 电路:SPST-NO 开关功能:关-瞬时 触点额定电压:0.05A @ 12VDC 触动器类型:标准 安装类型:通孔 从引脚算起，致动器距离 PCB 的高度:7.00mm 致动器方向:顶部触动 端接类型:PC 引脚 外形:6.00mm x 6.00mm 发光:不发光 发光电压:- 发光类型，颜色:- 操作力:160gf 防护等级:IP40 特点:触摸反馈 包装:带卷 (TR) 触动器材料:- 开关行程:0.25mm 机械寿命:100,000 次循环 工作温度:-20°C ~ 70°C 其它名称:1301.9303-ND486-1943-2 |
| 4ASH942 | 功能描述:SWITCH TACTILE SPST-NO 0.05A 24V RoHS:是 类别:开关 >> 触摸 系列:Multimec® 标准包装:2,000 系列:LPH 电路:SPST-NO 开关功能:关-瞬时 触点额定电压:0.05A @ 12VDC 触动器类型:标准 安装类型:通孔 从引脚算起，致动器距离 PCB 的高度:7.00mm 致动器方向:顶部触动 端接类型:PC 引脚 外形:6.00mm x 6.00mm 发光:不发光 发光电压:- 发光类型，颜色:- 操作力:160gf 防护等级:IP40 特点:触摸反馈 包装:带卷 (TR) 触动器材料:- 开关行程:0.25mm 机械寿命:100,000 次循环 工作温度:-20°C ~ 70°C 其它名称:1301.9303-ND486-1943-2 |
| 4ASH982 | 功能描述:SWITCH TACTILE SPST-NO 0.05A 24V RoHS:是 类别:开关 >> 触摸 系列:Multimec® 标准包装:2,000 系列:LPH 电路:SPST-NO 开关功能:关-瞬时 触点额定电压:0.05A @ 12VDC 触动器类型:标准 安装类型:通孔 从引脚算起，致动器距离 PCB 的高度:7.00mm 致动器方向:顶部触动 端接类型:PC 引脚 外形:6.00mm x 6.00mm 发光:不发光 发光电压:- 发光类型，颜色:- 操作力:160gf 防护等级:IP40 特点:触摸反馈 包装:带卷 (TR) 触动器材料:- 开关行程:0.25mm 机械寿命:100,000 次循环 工作温度:-20°C ~ 70°C 其它名称:1301.9303-ND486-1943-2 |
| 4ASH98222 | 功能描述:SWITCH TACTILE SPST-NO 0.05A 24V RoHS:是 类别:开关 >> 触摸 系列:Multimec® 标准包装:2,000 系列:LPH 电路:SPST-NO 开关功能:关-瞬时 触点额定电压:0.05A @ 12VDC 触动器类型:标准 安装类型:通孔 从引脚算起，致动器距离 PCB 的高度:7.00mm 致动器方向:顶部触动 端接类型:PC 引脚 外形:6.00mm x 6.00mm 发光:不发光 发光电压:- 发光类型，颜色:- 操作力:160gf 防护等级:IP40 特点:触摸反馈 包装:带卷 (TR) 触动器材料:- 开关行程:0.25mm 机械寿命:100,000 次循环 工作温度:-20°C ~ 70°C 其它名称:1301.9303-ND486-1943-2 |
| 4ASYBW2680A3CJ | 制造商:KEMET Corporation 功能描述:0.068U 300V |
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