参数资料
| 型号： | NH250500R0FJ01 |
| 厂商： | Vishay Dale |
| 文件页数： | 3/5页 |
| 文件大小： | 0K |
| 描述： | RES ALUM HOUSED WW 500 OHM 250W |
| 标准包装： | 1 |
| 系列： | NH |
| 电阻（欧姆）： | 500 |
| 功率（瓦特）： | 250W |
| 复合体： | 绕线 |
| 特点： | 非电感 |
| 温度系数： | ±20ppm/°C |
| 容差： | ±1% |
| 涂层，外壳类型： | 铝 |
| 安装特点： | 法兰 |
| 尺寸/尺寸： | 4.500" L x 3.000" W（114.30mm x 76.20mm） |
| 高度： | 2.219"（56.37mm） |
| 引线型： | 焊片 |
| 包装： | 散装 |
| 封装/外壳： | 轴向，盒 |
| 其它名称： | NH250-500J NH250500R0FJ01-ND Q2878010B |
RH, NH
www.vishay.com
POWER RATING
Vishay RH resistor wattage ratings are based on mounting to the following heat sink: ?
RH005 and RH010: 4" x 6" x 2" x 0.040" thick aluminum chassis (129 sq. in. surface area) ?
RH025: 5" x 7" x 2" x 0.040" thick aluminum chassis (167 sq. in. surface area) ?
RH050: 12" x 12" x 0.059" thick aluminum panel (291 sq. in. surface area) ?
RH100 and RH250: 12" x 12" x 0.125" thick aluminum panel (294 sq. in. surface area)
FREE AIR POWER RATING
Vishay Dale
GLOBAL ?
MODEL
W at 25 °C
RH005
NH005
4.5
RH010
NH010
7.5
RH025
NH025
12.5
RH050
NH050
20
RH100
NH100
40
RH250
NH250
100
AMBIENT TEMPERATURE DERATING
Derating is required for ambient temperatures above 25 °C, see the following graph. ?
Curves A , B , C apply to operation of unmounted resistors. Curve D applies to all types when mounted to specified heat sink. ?
A = RH005 and RH010 size resistor, unmounted ?
B = RH025 size resistor, unmounted ?
C = RH050, RH100 and RH250 size resistor, unmounted ?
D = All types mounted to recommended aluminum heat sink ?
120
100
80
60
40
20
0
A
B
C
D
- 55 - 50
0
50
150
250
25
AMBIENT TEMPERATURE IN °C
REDUCED HEAT SINK DERATING
Derating is also required when recommended heat sink area is reduced. ?
A = RH005 and RH010 size resistor ?
B = RH025 size resistor ?
C = RH050, RH100 and RH250 size resistor ?
100
90
80
70
60
50
40
30
20
10
A
B
C
0
0
20
40
60
80
100
% OF RECOMMENDED HEAT S INK AREA
Revision: 23-May-13
3
Document Number: 30201
For technical questions, contact: ww2aresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
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| NH25050R00FE01 | 功能描述:线绕电阻器 - 底架安装 NON-INDUCTIVE RoHS:否 制造商:Vishay/Dale 电阻:7 Ohms 容差:1 % 功率额定值:100 W 温度系数:50 PPM / C 系列:RH 工作温度范围:- 55 C to + 250 C 尺寸:46.02 mm Dia. x 46.02 mm W x 88.9 mm L x 44.45 mm H 封装:Bulk 产品:Power Resistors Wirewound Aluminum Housed |
| NH25050R00FJ01 | 功能描述:线绕电阻器 - 底架安装 250watts 50ohms 1% Non Inductive RoHS:否 制造商:Vishay/Dale 电阻:7 Ohms 容差:1 % 功率额定值:100 W 温度系数:50 PPM / C 系列:RH 工作温度范围:- 55 C to + 250 C 尺寸:46.02 mm Dia. x 46.02 mm W x 88.9 mm L x 44.45 mm H 封装:Bulk 产品:Power Resistors Wirewound Aluminum Housed |
| NH25050R00JE01 | 功能描述:线绕电阻器 - 底架安装 NH-250 50 5% E01 RoHS:否 制造商:Vishay/Dale 电阻:7 Ohms 容差:1 % 功率额定值:100 W 温度系数:50 PPM / C 系列:RH 工作温度范围:- 55 C to + 250 C 尺寸:46.02 mm Dia. x 46.02 mm W x 88.9 mm L x 44.45 mm H 封装:Bulk 产品:Power Resistors Wirewound Aluminum Housed |
| NH250511R0FJ01 | 功能描述:线绕电阻器 - 底架安装 NH-250 511 1% J01 RoHS:否 制造商:Vishay/Dale 电阻:7 Ohms 容差:1 % 功率额定值:100 W 温度系数:50 PPM / C 系列:RH 工作温度范围:- 55 C to + 250 C 尺寸:46.02 mm Dia. x 46.02 mm W x 88.9 mm L x 44.45 mm H 封装:Bulk 产品:Power Resistors Wirewound Aluminum Housed |
| NH25051R00FJ01 | 功能描述:线绕电阻器 - 底架安装 NH-250 51 1% J01 RoHS:否 制造商:Vishay/Dale 电阻:7 Ohms 容差:1 % 功率额定值:100 W 温度系数:50 PPM / C 系列:RH 工作温度范围:- 55 C to + 250 C 尺寸:46.02 mm Dia. x 46.02 mm W x 88.9 mm L x 44.45 mm H 封装:Bulk 产品:Power Resistors Wirewound Aluminum Housed |
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