WSHM2818_15 [VISHAY]
Power Metal Strip® Resistors, High Power (7 W) Low Value (down to 0.001 ï), Surface Mount;
| 型号： | WSHM2818_15 |
| 厂家： | 
VISHAY |
| 描述： | Power Metal Strip® Resistors, High Power (7 W) Low Value (down to 0.001 ï), Surface Mount |
| 文件： | 总3页 (文件大小：97K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
WSHM2818
www.vishay.com
Vishay Dale
Power Metal Strip® Resistors, High Power (7 W)
Low Value (down to 0.001 ), Surface Mount
FEATURES
• Improved thermal management incorporated
into design
• Ideal for all types of current sensing, voltage
division and pulse applications including
switching
and
linear
power
supplies,
instruments, power amplifier
• Proprietary processing technique produces
extremely low resistance values
• All welded construction
• Very low inductance (< 5 nH)
• Solid metal nickel-chrome or manganese-copper alloy
resistive element with low TCR (< 20 ppm/°C)
• Excellent frequency response to 50 MHz
• Low thermal EMF (< 3 μV/°C)
• AEC-Q200 qualified (1)
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
Note
(1)
Flame retardance test may not be applicable to some resistor
technologies.
STANDARD ELECTRICAL SPECIFICATIONS
RESISTANCE VALUE RANGE
POWER RATING
WEIGHT
(typical)
g/1000 pieces
GLOBAL MODEL
SIZE
P70 °C
W
Tol. 0.5 %
Tol. 1.0 %
WSHM2818
2818
7 (2)
0.010 to 0.1
0.001 to 0.1
167.8
Note
(2)
The WSHM2818 is rated at 7 W with maximum surface temperature of 180 °C.
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
RESISTOR CHARACTERISTICS
200 for 1 m to 5.99 m
75 for 6 m to 100 m
Temperature coefficient
ppm/°C
Inductance
nH
°C
A
< 5
Operating temperature range
Maximum continuous current
-65 to +170
(P/R)1/2
GLOBAL PART NUMBER INFORMATION
Global Part Numbering: WSHM2818R1000FEA
W
S
H
M
2
8
1
8
R
1
0
0
0
F
E
A
RESISTANCE
VALUE
GLOBAL MODEL
TOLERANCE CODE
PACKAGING CODE
SPECIAL
WSHM2818
L = m*
F = 1.0 ꢀ
J = 5.0 ꢀ
EA = Lead (Pb)-free, tape/reel
EK = Lead (Pb)-free, bulk
(Dash number)
(up to 2 digits)
From 1 to 99 as
applicable
R = Decimal
4L000 = 0.004
R0100 = 0.01
* Use “L” for resistance
values < 0.01
Revision: 07-Apr-15
Document Number: 30188
1
For technical questions, contact: ww2bresistors@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
WSHM2818
www.vishay.com
Vishay Dale
DIMENSIONS in inches (millimeters)
L
H
a
T
b
l
a
W
RESISTANCE
DIMENSIONS
SOLDER PAD DIMENSIONS
MODEL
RANGE
L
W
H
T
a
b
l
0.280 0.010 0.180 0.010 0.059 0.010 0.125 0.010
0.138
(3.5)
0.200
(5.1)
0.024
(0.61)
WSHM2818
DERATING
0.001 to 0.1
(7.1 0.25)
(4.6 0.25)
(1.50 0.25)
(3.18 0.25)
ꢂ2ꢀ
ꢂꢀꢀ
8ꢀ
6ꢀ
4ꢀ
2ꢀ
ꢀ
- 6. - .ꢀ - 2.
ꢀ
2.
.ꢀ
7.
Ambient Temperature in °C
70
ꢂꢀꢀ
ꢂ2. ꢂ.ꢀ ꢂ7ꢀ
PERFORMANCE
TEST
CONDITIONS OF TEST
TEST LIMITS
ꢀ0. ꢁ R
ꢂ0ꢀ ꢁ R
ꢀ0. ꢁ R
ꢂ0ꢀ ꢁ R
ꢀ0. ꢁ R
ꢀ0. ꢁ R
ꢀ0. ꢁ R
ꢂ0ꢀ ꢁ R
ꢀ0. ꢁ R
ꢀ0. ꢁ R
Thermal shock
-55 °C to +150 °C, 1000 cycles, 15 min at each extreme
4x rated power for 5 s
Short time overload
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”
+260 °C solder, 10 s to 12 s dwell, 25 mm/s emergence
MIL-STD-202, method 106, 0 ꢀ power, 7b not required
Load life
Resistance to solder heat
Moisture resistance
PACKAGING
MODEL
REEL
TAPE WIDTH
DIAMETER
PIECES/REEL
CODE
WSHM2818
16 mm/embossed plastic
330 mm/13"
3500
EA
Note
Embossed Carrier Tape per EIA-481.
•
Revision: 07-Apr-15
Document Number: 30188
2
For technical questions, contact: ww2bresistors@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
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
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“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
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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
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including but not limited to the warranty expressed therein.
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Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as RoHS-Compliant fulfill the
definitions and restrictions defined under Directive 2011/65/EU of The European Parliament and of the Council
of June 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment
(EEE) - recast, unless otherwise specified as non-compliant.
Please note that some Vishay documentation may still make reference to RoHS Directive 2002/95/EC. We confirm that
all the products identified as being compliant to Directive 2002/95/EC conform to Directive 2011/65/EU.
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as Halogen-Free follow Halogen-Free
requirements as per JEDEC JS709A standards. Please note that some Vishay documentation may still make reference
to the IEC 61249-2-21 definition. We confirm that all the products identified as being compliant to IEC 61249-2-21
conform to JEDEC JS709A standards.
Revision: 02-Oct-12
Document Number: 91000
1
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