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WSMS2908L5000JK

型号:

WSMS2908L5000JK

品牌:

VISHAY[ VISHAY ]

页数:

3 页

PDF大小:

86 K

WSMS2908  
Vishay Dale  
Power Metal Strip® Meter Shunt Resistor,  
Very Low Value (down to 0.0001 Ω)  
FEATURES  
• High power to resistor size ratio  
• 5-terminal connection design  
• Use for single or multi-phase energy meters  
• Proprietary processing technique produces  
extremely low resistance values  
• All welded construction  
• Very low inductance (< 5 nH)  
• Low thermal EMF (< 3 μV/°C)  
• Compliant to RoHS directive 2002/95/EC  
STANDARD ELECTRICAL SPECIFICATIONS  
POWER RATING  
RESISTANCE VALUE  
RESISTANCE VALUES  
CURRENTLY AVAILABLE (1)  
Ω
WEIGHT  
(typical)  
g/1000 pieces  
GLOBAL  
MODEL  
TOLERANCE  
%
SIZE  
P70 °C  
W
RANGE  
Ω
WSMS2908  
2908  
3.0  
5.0  
50μ to 1000μ  
100μ, 250μ, 300μ, 430μ, 500μ  
2100  
Note  
(1)  
Other values may be available, contact factory  
TECHNICAL SPECIFICATIONS  
PARAMETER  
UNIT  
RESISTOR CHARACTERISTICS  
500 for 100 μΩ, 225 for 250 μΩ,  
175 for 300 μΩ, 430 μΩ, and 500 μΩ  
Temperature Coefficient  
ppm/°C  
Operating Temperature Range  
Maximum Current Rating  
°C  
A
- 65 to + 170  
(P/R)1/2  
GLOBAL PART NUMBER INFORMATION  
GLOBAL PART NUMBERING: WSMS2908L2500JK (WSMS2908, 0.00025 Ω, 5 %)  
W
S
M
S
2
9
0
8
L
2
5
0
0
J
K
GLOBAL MODEL  
RESISTANCE VALUE  
TOLERANCE CODE  
PACKAGING CODE  
SPECIAL  
WSMS2908  
L = mΩ  
J = 5.0 ꢀ  
K = Bulk pack  
E = Tape and reel  
(Dash number)  
(Up to 2 digits)  
From 1 to 99 as  
applicable  
L1000 = 0.00010 Ω  
L2500 = 0.00025 Ω  
L3000 = 0.00030 Ω  
L4300 = 0.00043 Ω  
L5000 = 0.00050 Ω  
** Please see document “Vishay Material Category Policy”: www.vishay.com/doc?99902  
www.vishay.com  
42  
For technical questions, contact: ww2bresistors@vishay.com  
Document Number: 30160  
Revision: 02-Jul-10  
WSMS2908  
Power Metal Strip® Meter Shunt Resistor,  
Vishay Dale  
Very Low Value (down to 0.0001 Ω)  
DIMENSIONS in inches (millimeters)  
0.453 (11.5)  
0.157 (4.0)  
0.059 (1.5)  
0.142 (3.6)  
0.118 (3.0)  
0.110 (2.8)  
90° 0.2°  
0.315 (8.0)  
0.157 (4.0)  
Ø 0.165 (Ø 4.2)  
2 PLACES  
0.787 (20.0)  
CALIBRATION NOTCH  
1.142 (29.0) 0.010  
TERMINAL THICKNESS 0.040 (1.0)  
ALL VALUES  
DERATING  
TOLERANCES ON DECIMALS  
XXX 0.005  
120  
100  
80  
RESISTOR  
RESISTANCE  
ELEMENT  
THICKNESS  
(inches)  
ELEMENT  
LENGTH  
ELEMENT  
MATERIAL  
VALUE  
60  
40  
20  
0
Ω)  
100  
250  
300  
430  
500  
0.040  
0.059  
0.051  
0.038  
0.033  
0.080  
0.276  
0.276  
0.315  
0.315  
Mn-Cu  
Mn-Cu  
Mn-Cu  
Mn-Cu  
Mn-Cu  
- 65- 50 - 25  
0
25  
50  
75 100 125 150 175  
Ambient Temperature in °C  
70  
PERFORMANCE  
TEST  
CONDITIONS OF TEST  
TEST LIMITS  
Thermal Shock  
Short Time Overload  
- 55 °C to + 150 °C, 1000 cycles, 15 min at each extreme  
5 x rated power for 5 s  
0.5 ꢀ ΔR  
0.5 ꢀ ΔR  
0.5 ꢀ ΔR  
1.0 ꢀ ΔR  
0.5 ꢀ ΔR  
0.5 ꢀ ΔR  
0.5 ꢀ ΔR  
1.0 ꢀ ΔR  
0.5 ꢀ ΔR  
Low Temperature Operation  
High Temperature Exposure  
Bias Humidity  
- 65 °C for 45 min  
1000 h at + 170 °C  
+ 85 °C, 85 ꢀ RH, 10 ꢀ bias, 1000 h  
100 g’s for 6 ms, 5 pulses  
Mechanical Shock  
Vibration  
Frequency varied 10 Hz to 2000 Hz in 1 min, 3 directions, 12 h  
1000 h at + 70 °C, 1.5 h “ON”, 0.5 h “OFF”  
Load Life  
Moisture Resistance  
MIL-STD-202, method 106, 0 ꢀ power, 7b not required  
Document Number: 30160  
Revision: 02-Jul-10  
For technical questions, contact: ww2bresistors@vishay.com  
www.vishay.com  
43  
Legal Disclaimer Notice  
Vishay  
Disclaimer  
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE  
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.  
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,  
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other  
disclosure relating to any product.  
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or  
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay 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.  
Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical  
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements  
about the suitability of products for a particular application. 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. Parameters  
provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All  
operating parameters, including typical parameters, must be validated for each customer application by the customer’s  
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,  
including but not limited to the warranty expressed therein.  
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining  
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.  
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk and agree  
to fully indemnify and hold Vishay and its distributors harmless from and against any and all claims, liabilities, expenses and  
damages arising or resulting in connection with such use or sale, including attorneys fees, even if such claim alleges that Vishay  
or its distributor was negligent regarding the design or manufacture of the part. Please contact authorized Vishay personnel to  
obtain written terms and conditions regarding products designed for such applications.  
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by  
any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.  
Document Number: 91000  
Revision: 11-Mar-11  
www.vishay.com  
1
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