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参数资料
| 型号： | 74HC257DB |
| 元件分类： | 开关 |
| 英文描述： | TOGGLE SWITCH, DP3T, MOMENTARY, 4A, 28VDC, PANEL MOUNT-THREADED |
| 文件页数： | 3/7页 |
| 文件大小： | 525K |
| 代理商： | 74HC257DB |
A-80
APEM
www.apem.com
12000X778 series
High performance toggle switches - threaded bushing 11,9 (15/32)
Overview
A
12
SERIES
Terminals and bushings
1
Solder lug terminals,
threaded bushing
11,9 (15/32)
2
Straight PC terminals,
threaded bushing
11,9 (15/32)
Number of poles
4
Double pole
5
Three pole
6
Four pole
Electrical functions
6
ON
-
ON
9
ON
OFF
ON
7
MOM OFF
MOM
8
ON
OFF
MOM
4
ON
ON MOM
MOM ON MOM
5
ON
MOM
Function 4
. For 2 and 4 poles only.
. Must not have blank in
"momentary" box.
Momentary
1R
ON ON MOM
2R
MOM ON MOM
. For function 4 only.
. Leave blank for other
functions.
ABOUT THIS SERIES
On the following pages, you will find successively :
- model structure of switches
- options in the same order as in above chart
Dimensions
: first dimensions are in mm while inches are shown as bracketted numbers.
Fluorescent tip
Blank
None
0.38
White fluorescent
tip to lever
X778
High performance
fully sealed
matt black switches.
Levers
Blank
Standard lever
-12
Short lever
Locking levers
1V
1 locked position
2V
2 locked positions
3V
3 locked positions
Approval
CECC
Availability :
Consult factory for
details of approved
models.
Sealing boots
can be used to further protect the switches against dust and water. They are presented in section H.
Mounting accessories
: standard hardware supplied with all models : 1 hex nut 14 mm (.551) across flats, part number U41.
This nut is presented after model structure of switches.
Security caps
are available to prevent inadvertent lever operation. They are presented in section I.
Packaging unit
: 2 pole models : 25 pieces
3 and 4 pole models : 20 pieces
.
相关PDF资料 |
PDF描述 |
|---|---|
| 74HC257N | TOGGLE SWITCH, DP3T, MOMENTARY, 4A, 28VDC, PANEL MOUNT-THREADED |
| 74HC257PW | TOGGLE SWITCH, DP3T, MOMENTARY, 4A, 28VDC, PANEL MOUNT-THREADED |
| 74HC258D | TOGGLE SWITCH, DP3T, MOMENTARY, 4A, 28VDC, PANEL MOUNT-THREADED |
| 74HC258DB | TOGGLE SWITCH, DP3T, MOMENTARY, 4A, 28VDC, PANEL MOUNT-THREADED |
| 74HC258N | TOGGLE SWITCH, DP3T, MOMENTARY, 4A, 28VDC, PANEL MOUNT-THREADED |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 74HC257DB,112 | 功能描述:编码器、解码器、复用器和解复用器 QUAD 2-IN MULTIPLXR RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| 74HC257DB,118 | 功能描述:编码器、解码器、复用器和解复用器 QUAD 2-IN MULTIPLXR RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| 74HC257DB-T | 功能描述:编码器、解码器、复用器和解复用器 QUAD 2-IN MULTIPLXR 3-S RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| 74HC257D-Q100J | 功能描述:IC QUAD 2-IN MUX 3-ST 16SO 制造商:nexperia usa inc. 系列:汽车级，AEC-Q100，74HC 包装:带卷（TR） 零件状态:在售 类型:多路复用器 电路:4 x 2：1 独立电路:1 电流 - 输出高，低:7.8mA，7.8mA 电压源:单电源 电压 - 电源:2 V ~ 6 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商器件封装:16-SO 标准包装:2,500 |
| 74HC257D-T | 制造商:未知厂家 制造商全称:未知厂家 功能描述:2-Input Digital Multiplexer |
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