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参数资料
| 型号： | XG2A |
| 元件分类： | 功率/信号继电器 |
| 英文描述： | POWER/SIGNAL RELAY, DPDT, MOMENTARY, 0.056A (COIL), 28VDC (COIL), 1568mW (COIL), 5A (CONTACT), 28VDC (CONTACT), PANEL MOUNT |
| 文件页数： | 13/16页 |
| 文件大小： | 1015K |
| 代理商： | XG2A |
Application notes
N°102
RELAYS AND TEMPERATURE VARIATIONS
Most relay parameters are specified as maximum values over the rated temperature range of the specific relay. Users often
find that key parameters differ significantly at ambient temperature (20-25°C) and sometimes fall into the trap of specifying
their system around these ambient parameters. Additionally the actual temperature experienced by the relay can be far in
excess of existing ambient temperatures due to the heat generated by the coil current and the contact load. Figure 1 is the
summary of temperature effects on relay electrical characteristics.
Temperature
Resistance
Current
Operating
Voltage
Release
Voltage
Operate Time
Release Time
Increase
UP
DOWN
UP
Decrease
DOWN
UP
DOWN
Fig. 1
The following formulas are sometimes useful in calculating the effects shown above.
1. Change in coil resistance due to change of ambient temperature can be calculated by the following formula.
R = R20 [1 + .0039 (T-20)]
Where: R = Coil resistance at given temperature
R20 = Coil resistance at 20°C
T = °C Ambient temperature
"Rule of Thumb" : For each 10°C change of temperature, coil resistance will change approximately 4%.
2. High and low temperature pick up voltage:
E2 = E1K2,
Where: E2 = Pick Up Voltage at T2 temperature
E1 = Pick Up Voltage at 20°C
K2 = Coefficient of correction found on the graph in Fig. 2 at T2
Date of issue: 6/00
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| XE4N | POWER/SIGNAL RELAY, DPDT, MOMENTARY, 0.056A (COIL), 28VDC (COIL), 1568mW (COIL), 5A (CONTACT), 28VDC (CONTACT), SOCKET MOUNT |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| X-G2A | 制造商:Leach International Corporation 功能描述:EM RLY DPDT 5A 28VDC 500OHM SCKT - Bulk |
| XG2A1001 | 制造商:Omron Electronic Components LLC 功能描述:CONN IDC CONN F 10 POS 2.54MM IDT RA TH - Bulk 制造商:Omron Electronic Components LLC 功能描述:CONN SOCKET IDC 10POS .1X.1 |
| XG2A-1001 | 功能描述:集管和线壳 Connector w/Standard Terminal 10 Contacts RoHS:否 产品种类:1.0MM Rectangular Connectors 产品类型:Headers - Pin Strip 系列:DF50 触点类型:Pin (Male) 节距:1 mm 位置/触点数量:16 排数:1 安装风格:SMD/SMT 安装角:Right 端接类型:Solder 外壳材料:Liquid Crystal Polymer (LCP) 触点材料:Brass 触点电镀:Gold 制造商:Hirose Connector |
| XG2A1002 | 制造商:Omron Electronic Components LLC 功能描述:CONN IDC CONN M 10 POS 2.54MM IDT RA CBL MNT - Bulk 制造商:Omron Electronic Components LLC 功能描述:CONN SOCKET IDC 10POS .1X.1 |
| XG2A-1002 | 功能描述:集管和线壳 Connector w/Reverse Terminal 10 Contacts RoHS:否 产品种类:1.0MM Rectangular Connectors 产品类型:Headers - Pin Strip 系列:DF50 触点类型:Pin (Male) 节距:1 mm 位置/触点数量:16 排数:1 安装风格:SMD/SMT 安装角:Right 端接类型:Solder 外壳材料:Liquid Crystal Polymer (LCP) 触点材料:Brass 触点电镀:Gold 制造商:Hirose Connector |
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