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参数资料
| 型号： | XAA1J |
| 元件分类： | 功率/信号继电器 |
| 英文描述： | POWER/SIGNAL RELAY, DPDT, MOMENTARY, 11500mW (COIL), 5A (CONTACT), 28VDC (CONTACT), SOCKET MOUNT |
| 文件页数： | 8/10页 |
| 文件大小： | 614K |
| 代理商： | XAA1J |
Types of suppressors:
Passive devices.
The resistor capacitor circuit
It eliminates the power dissipation problem, as well as fast voltage rises. With a proper match between coil and resistor,
approximate capacitance value can be calculated from:
C = 0.02xT/R, where
T = operating time in milliseconds
R = coil resistance in kiloOhms
C = capacitance in microFarads
The series resistor must be between 0.5 and 1 times the coil resistance. Special consideration must be taken for the
capacitor inrush current in the case of a low resistance coil.
The record shown opposite is performed on the same relay as above. The operation time becomes:
- time to start the movement 2.3ms
- transfer time 1.2ms
The major difficulty comes from the capacitor volume. In our example of a relay with a 290
coil and time delay of 8 ms, a
capacitance value of C=0.5 uF is found. This non polarized capacitor, with a voltage of 63V minimum, has a volume of about
1cm3. For 150V, this volume becomes 1.5 cm3.
Date of issue: 6/00
- 9 -
Page 2 of 4
相关PDF资料 |
PDF描述 |
|---|---|
| XAA1K | POWER/SIGNAL RELAY, DPDT, MOMENTARY, 2760mW (COIL), 5A (CONTACT), 28VDC (CONTACT), SOCKET MOUNT |
| XAA2F | POWER/SIGNAL RELAY, DPDT, MOMENTARY, 4600mW (COIL), 5A (CONTACT), 28VDC (CONTACT), PANEL MOUNT |
| XAA2J | POWER/SIGNAL RELAY, DPDT, MOMENTARY, 11500mW (COIL), 5A (CONTACT), 28VDC (CONTACT), PANEL MOUNT |
| XAA2K | POWER/SIGNAL RELAY, DPDT, MOMENTARY, 2760mW (COIL), 5A (CONTACT), 28VDC (CONTACT), PANEL MOUNT |
| XAA4F | POWER/SIGNAL RELAY, DPDT, MOMENTARY, 4600mW (COIL), 5A (CONTACT), 28VDC (CONTACT), SOCKET MOUNT |
相关代理商/技术参数 |
参数描述 |
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| XA-ACC-BATT | 功能描述:XBEE BATT N-CELL 1.5VDC ALK 3P RoHS:是 类别:RF/IF 和 RFID >> RF配件 系列:* 标准包装:1 系列:* |
| XA-ACC-BH6D | 功能描述:XBEE BATTERY HOLDER D-SIZE 6CELL RoHS:是 类别:RF/IF 和 RFID >> RF配件 系列:* 标准包装:1 系列:* |
| XA-ACC-CS-L | 功能描述:XBEEBATTERY PACK LITHIUM 6V 3 RoHS:是 类别:RF/IF 和 RFID >> RF配件 系列:* 标准包装:1 系列:* |
| XA-ACC-CS-L-25 | 功能描述:XBEEBATTERY PACK LITHIUM 6V 25PK RoHS:是 类别:RF/IF 和 RFID >> RF配件 系列:* 标准包装:1 系列:* |
| XA-ACC-NK | 制造商:Digi International Inc 功能描述:ENCLOSURE NEMA 4/IP 66 XBEE ADPT |
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