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参数资料
| 型号： | YA1N |
| 元件分类： | 功率/信号继电器 |
| 英文描述： | POWER/SIGNAL RELAY, 4PDT, MOMENTARY, 0.07A (COIL), 28VDC (COIL), 1960mW (COIL), 5A (CONTACT), 28VDC (CONTACT), SOCKET MOUNT |
| 文件页数： | 3/16页 |
| 文件大小： | 3319K |
| 代理商： | YA1N |
The bifilar coil
The principle is to wind on the magnetic circuit of the main coil a second coil shorted on itself. By a proper adaptation of the
internal resistance of this second coil it is possible to find an acceptable equilibrium between surge voltage and reduction of
the opening speed. To be efficient at fast voltage changes, the coupling of two coils must be perfect. This implies embedded
windings. The volume occupied by the second coil reduces the efficiency of the main coil and results in higher coil power
consumption. This method cannot be applied efficiently to products not specifically designed for this purpose.
The resistor (parallel with the coil)
For efficient action, the resistor must be of the same order of magnitude as the coil resistance. A resistor 1.5 times the coil
resistance will limit the surge to 1.5 times the supply voltage. Release time and opening speed are moderately affected. The
major problem is the extra power dissipated.
Semi-conductor devices
The diode
It is the most simple method to totally suppress the surge voltage. It has the major disadvantage of the higher reduction of
contact opening speed. This is due to the total recycling, through the diode, of the energy contained in the coil itself. The
following measurement is performed once again on the same relay. Operation times are given by the upper curve:
- time to start the movement 14ms
- transfer time 5ms
These times are multiplied by a coefficient from 4 to 8.
The lower curve shows the coil current. The increase prior to NO contact opening indicates that the contact spring dissipates
its energy. At the opening time the current becomes constant as a result of practically zero opening speed.
Due to this kind of behavior, this type of suppression must be avoided for power relays. For small relays which have to switch
low currents of less than 0.2 A, degradation of life is not that significant and the method may be acceptable.
Date of issue: 6/00
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相关PDF资料 |
PDF描述 |
|---|---|
| YA2A | POWER/SIGNAL RELAY, 4PDT, MOMENTARY, 0.07A (COIL), 28VDC (COIL), 1960mW (COIL), 5A (CONTACT), 28VDC (CONTACT), PANEL MOUNT |
| YA2V | POWER/SIGNAL RELAY, 4PDT, MOMENTARY, 0.24A (COIL), 6VDC (COIL), 1440mW (COIL), 5A (CONTACT), 28VDC (CONTACT), PANEL MOUNT |
| YA4N | POWER/SIGNAL RELAY, 4PDT, MOMENTARY, 0.07A (COIL), 28VDC (COIL), 1960mW (COIL), 5A (CONTACT), 28VDC (CONTACT), SOCKET MOUNT |
| YA4V | POWER/SIGNAL RELAY, 4PDT, MOMENTARY, 0.24A (COIL), 6VDC (COIL), 1440mW (COIL), 5A (CONTACT), 28VDC (CONTACT), SOCKET MOUNT |
| YD1A | POWER/SIGNAL RELAY, 4PDT, MOMENTARY, 0.07A (COIL), 28VDC (COIL), 1960mW (COIL), 5A (CONTACT), 28VDC (CONTACT), SOCKET MOUNT |
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| YA-1R5435242-A2 | 功能描述:基本/快动开关 LARGE BASICS RoHS:否 制造商:Omron Electronics 触点形式:SPDT 执行器:Lever 电流额定值:5 A 电压额定值 AC:250 V 电压额定值 DC:30 V 功率额定值: 工作力:120 g IP 等级:IP 67 NEMA 额定值: 端接类型:Wire 安装:Panel |
| YA-2 | 功能描述:PNEUMATIC CRIMP TOOl RoHS:否 类别:工具 >> 压接器，施用器，压力机 系列:- 产品培训模块:Board-to-Wire Connectors 标准包装:1 系列:DF11 工具类型:台式压机，施用器 适用于相关产品:矩形触点，24-28 AWG 特点:- 配用:H1505TR-ND - CONN SOCKET 24-28AWG CRIMP GOLDH1504TR-ND - CONN SOCKET 24-28AWG CRIMP TIN 相关产品:AP105-DF11-2428S(64)-ND - TOOL APPLICATOR DF11 ACCESSORIESAP105-DF11-2428S(63)-ND - TOOL APPLICATOR DF11 ACCESSORIESAP105-DF11-2428S(62)-ND - TOOL APPLICATOR DF11 ACCESSORIESAP105-DF11-2428S(61)-ND - TOOL APPLICATOR DF11 ACCESSORIESCM-105 WITH TRANSFORMER-ND - TOOL AUTO CRIMPING MACHINE 其它名称:*AP105-DF11-2428SQ1139807AQ949366 |
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