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參數(shù)資料
| 型號(hào)： | YA4V |
| 元件分類： | 功率/信號(hào)繼電器 |
| 英文描述： | POWER/SIGNAL RELAY, 4PDT, MOMENTARY, 0.24A (COIL), 6VDC (COIL), 1440mW (COIL), 5A (CONTACT), 28VDC (CONTACT), SOCKET MOUNT |
| 文件頁(yè)數(shù)： | 2/16頁(yè) |
| 文件大?。?/td> | 3319K |
| 代理商： | YA4V |
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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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| YD1A | POWER/SIGNAL RELAY, 4PDT, MOMENTARY, 0.07A (COIL), 28VDC (COIL), 1960mW (COIL), 5A (CONTACT), 28VDC (CONTACT), SOCKET MOUNT |
| YD1N | POWER/SIGNAL RELAY, 4PDT, MOMENTARY, 0.07A (COIL), 28VDC (COIL), 1960mW (COIL), 5A (CONTACT), 28VDC (CONTACT), SOCKET MOUNT |
| YD2A | POWER/SIGNAL RELAY, 4PDT, MOMENTARY, 0.07A (COIL), 28VDC (COIL), 1960mW (COIL), 5A (CONTACT), 28VDC (CONTACT), PANEL MOUNT |
| YD2B | POWER/SIGNAL RELAY, 4PDT, MOMENTARY, 0.12A (COIL), 12VDC (COIL), 1440mW (COIL), 5A (CONTACT), 28VDC (CONTACT), PANEL MOUNT |
| YD2N | POWER/SIGNAL RELAY, 4PDT, MOMENTARY, 0.07A (COIL), 28VDC (COIL), 1960mW (COIL), 5A (CONTACT), 28VDC (CONTACT), PANEL MOUNT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| Y-A4V | 制造商:Leach International Corporation 功能描述:MID RANGE - Bulk |
| YA50/D/RF | 制造商:C & S 功能描述:SOUNDER, YODAL ALARM, 24V |
| YA50/N/RF | 制造商:C & S 功能描述:SOUNDER YODAL ALARM 240V 制造商:C & S 功能描述:SOUNDER, YODAL ALARM, 240V 制造商:C & S 功能描述:SOUNDER, YODAL ALARM, 240V, Tones:Multiple Tones, Supply Voltage V AC:230VAC, Sound Level SPL:106dB, IP / NEMA Rating:IP54, Operating Temperature Min:-25C, Operating Temperature Max:55C, Current Consumption:13mA, External , RoHS Compliant: Yes |
| YA60/C/D/EU | 制造商:C & S 功能描述:SOUNDER 24VDC |
| YA6-10 | 功能描述:ANT YAGI 10DBI 698-750MHZ 18" NF RoHS:是 類別:RF/IF 和 RFID >> RF 天線 系列:* 標(biāo)準(zhǔn)包裝:1 系列:* |
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