NPP2-T1260.549OHM1%25PPM [VISHAY]
Fixed Resistor, Thin Film, 5W, 0.549ohm, 500V, 1% +/-Tol, -25,25ppm/Cel, 3312;型号: | NPP2-T1260.549OHM1%25PPM |
厂家: | VISHAY |
描述: | Fixed Resistor, Thin Film, 5W, 0.549ohm, 500V, 1% +/-Tol, -25,25ppm/Cel, 3312 电阻器 |
文件: | 总3页 (文件大小:815K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
NPR NPP T126
Powertron
•ꢀ Resistances from 0.01 to 51K Ohms
•ꢀ Power Rating to 20Watt
•ꢀ Resistance Tolerances to ±0.05%
•ꢀ TCR to ±5ppm/K
•ꢀ TO-126 Housing
•ꢀ Convenient SMD DPak Available
•ꢀ Low Inductance ( <50nH )
SPECIFICATIONS
Resistance Range3
Power Rating
Temperature
Coefficients
Thermal
Resistance
Type
Tolerances
1
2
Heatsink Free Air
Min
Max
±50ppm/K ( R>10W )
±100ppm/K ( R>0.1W )
±250ppm/K
±1% ( R>0.1W )
NPR 2-T126
20W
5W
1W
5.9K/W
0.01W
51KW
±5%
±0.05% / ±0.1% / ±0.25%
( R>5W )
±5 / ±10ppm/K ( R>1W )
±25ppm/K ( R>0.1W )
±100ppm/K
±0.5% ( R>1W ) /
±1% ( R>0.1W )
±2% / ±5%
NPP 2-T126
0.5W
6.0K/W
0.1W
51KW
1 Power rating based on 25°C Flange Temperature
2 Power rating based on 25°C Ambient Temperature
3 Consult Factory for Higher or Lower Values
Specification
Value
25A
Maximum Current
Temperature Range
-55°C to +155°C : NPP 2T126
-55°C to +120°C : NPR 2-T126
Dielectric Strength
2000 VAC
500 V
Max. Operating Voltage
Insulation Resistance
>1000 Meg-Ohm
Environmental Performance
Load Life
DR
Test Conditions
±1%
25°C / 90 min ON / 30 min OFF / 1000 hr
40°C / 90-95% RH / DC 0.1W / 1000 hr
-55°C for 30 min / +155°C for 30 min / 1000 hr
+350°C / 3s
Humidity Resistance
Temperature Cycle
Solder Heat
±1%
±0.25%
±0.1%
±0.25%
Vibration
Document Number: 64330
Revision: 20-09-10
For technical questions, contact: powertron@vishaypg.com
www.powertron.de
1
NPR NPP T126
Powertron
SPECIFICATIONS(continued)
Power Rating Notes -
Power Derating Curve
120
100
80
60
40
20
0
The NPR 2-T126 Series Foil Resistors must be attached to a
suitable heatsink. The maximum internal resistor temperature
is 155°C (120°C for the NPP 2-T126).
To specify an appropriate heatsink use the following formula :
RqH = TMAX - ( P x RqR ) - TA
P
Where: RqH = Thermal Resistance of Heatsink ( K/W )
RqR = Thermal Resistance of Resistor ( K/W )
TMAX = Maximum Temperature of Resistor
TA = Ambient Temperature of Heatsink ( °C )
P = Power Through Resistor ( W )
-25
0
25
50
75
100
125
150
175
Ambient Temperature (°C)
Mounting Notes -
The NPR 2-T126 Series Film Resistors must be attached to
a suitable heatsink. Mount resistor using thermal grease to
a clean / flat surface. Use a compression washer to provide
150 to 300 pounds ( 665 to 1330N ) of mounting force.
Torque mounting screw to 8 in-lbs ( 0.9 Nm ).
Ordering Information
Part Number - Resistance - Tolerance - TCR
Example: NPR 2-T126 0.5 Ohm 1% 100ppm
www.powertron.de
2
For technical questions, contact: powertron@vishaypg.com
Document Number: 64330
Revision: 20-09-10
Legal Disclaimer Notice
Vishay Precision Group
Disclaimer
ALL PRODUCTS, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE.
Vishay Precision Group, Inc., its affiliates, agents, and employees, and all persons acting on its or their
behalf (collectively, “Vishay Precision Group”), disclaim any and all liability for any errors, inaccuracies or
incompleteness contained herein or in any other disclosure relating to any product.
The product specifications do not expand or otherwise modify Vishay Precision Group’s terms and conditions of
purchase, including but not limited to, the warranty expressed therein.
Vishay Precision Group makes no warranty, representation or guarantee other than as set forth in the terms
and conditions of purchase. To the maximum extent permitted by applicable law, Vishay Precision Group
disclaims (i) any and all liability arising out of the application or use of any product, (ii) any and all liability,
including without limitation special, consequential or incidental damages, and (iii) any and all implied
warranties, including warranties of fitness for particular purpose, non-infringement and merchantability.
Information provided in datasheets and/or specifications may vary from actual results in different applications
and performance may vary over time. Statements regarding the suitability of products for certain types of
applications are based on Vishay Precision Group’s knowledge of typical requirements that are often placed on
Vishay Precision Group products. It is the customer’s responsibility to validate that a particular product with the
properties described in the product specification is suitable for use in a particular application.
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Product names and markings noted herein may be trademarks of their respective owners.
Document No.: 63999
Revision: 27-Apr-11
www.vishaypg.com
1
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