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WSHM2818R0150FEA

P1-P3P4-P4
WSHM2818
www.vishay.com
Vishay Dale
Revision: 16-Feb-17
1
Document Number: 30188
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
Power Metal Strip
®
Resistors, High Power (7 W),
Low Value (down to 0.001 ), Surface Mount
DESIGN TOOLS (click logo to get started)
FEATURES
• Improved thermal management incorporated
into design
• All welded construction of the Power Metal Strip
resistors are ideal for all types of current
sensing, voltage division, and pulse applications
• Proprietary processing technique produces
extremely low resistance values
• 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
Notes
• Follow link to Overview of Automotive Grade Products for more details: www.vishay.com/doc?49924
(1)
Flame retardance test may not be applicable to some resistor technologies
Note
(1)
The WSHM2818 is rated at 7 W with maximum surface temperature of 180 °C
Note
(1)
Packaging code: EB (lead (Pb)-free) and TB (tin / lead) are non-standard packaging codes designating 1000 piece reels. These non-standard
packaging codes are identical to our standard EA (lead (Pb)-free) and TA (tin / lead), except that they have a package quantity of 1000 pieces
Available
Models
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL MODEL SIZE
POWER RATING
P
70 °C
W
RESISTANCE VALUE RANGE
WEIGHT
(typical)
g/1000 pieces
Tol. ± 0.5 % Tol. ± 1.0 %
WSHM2818 2818 7
(1)
0.010 to 0.1 0.001 to 0.1 167.8
GLOBAL PART NUMBER INFORMATION
Global Part Numbering: WSHM2818R1000FEA (visit www.vishay.net Vishay Dale parts numbering manual for all options)
GLOBAL MODEL
RESISTANCE
VALUE
TOLERANCE CODE PACKAGING CODE
(1)
SPECIAL
WSHM2818 L = m*
R = decimal
4L000 = 0.004
R0100 = 0.01
* Use “L” for resistance
values < 0.01
D = ± 0.5 %
F = ± 1.0 %
EA = lead (Pb)-free, tape/reel
EK = lead (Pb)-free, bulk
(dash number)
(up to 2 digits)
from 1 to 99 as
applicable
W S H M 2 8 1 8 R 1 0 0 0 F E A
WSHM2818
www.vishay.com
Vishay Dale
Revision: 16-Feb-17
2
Document Number: 30188
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
Notes
(1)
Component TCR - total TCR that includes the TCR effects of the resistor element and the copper terminal
(2)
Element TCR - only applies to the alloy used for the resistor element; refer to item 1 in the construction illustration on the following page
(3)
Maximum working voltage - the WSHM is not voltage sensitive, but is limited by power / energy dissipation and is also not ESD sensitive
DIMENSIONS in inches (millimeters)
Notes
• 3D models available: www.vishay.com/doc?30324
• Surface mount solder profile recommendations: www.vishay.com/doc?31052
TYPICAL SENSING LAYOUT SENSING WITH VIA LAYOUT (best performance)
Note
• Sensing locations are based on the construction of the part; terminals are wrapped from the outside to underneath. These options place the
sensing location nearest the temperature stable resistance element, which minimizes contact resistance and optimizes TCR
TECHNICAL SPECIFICATIONS
PARAMETER UNIT RESISTOR CHARACTERISTICS
Component temperature coefficient (including terminal)
(1)
ppm/°C
± 200 for 1 m to 5.99 m
± 75 for 6 m to 100 m
Element TCR
(2)
ppm/°C < 20
Inductance nH < 5
Operating temperature range °C -65 to +170
Maximum working voltage
(3)
V(P/R)
1/2
MODEL
RESISTANCE
RANGE
DIMENSIONS SOLDER PAD DIMENSIONS
LWH Tabl
WSHM2818 0.001 to 0.1
0.280 ± 0.010
(7.1 ± 0.25)
0.180 ± 0.010
(4.6 ± 0.25)
0.059 ± 0.010
(1.50 ± 0.25)
0.125 ± 0.010
(3.18 ± 0.25)
0.138
(3.5)
0.200
(5.1)
0.024
(0.61)
L
W
T
H
b
a
a
l
abc l
0.138
(3.51)
0.210
(5.33)
0.020
(0.51)
0.024
(0.61)
l
a
b
c
c
a
abde f l
0.143
(3.63)
0.210
(5.33)
0.026
(0.66)
0.105
(2.67)
Ø 0.020
(0.50)
0.024
(0.61)
f
b
d
a
a
e
l
WSHM2818
www.vishay.com
Vishay Dale
Revision: 16-Feb-17
3
Document Number: 30188
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
DERATING
Notes
• Embossed carrier tape per EIA-481
• Additional packaging details at www.vishay.com/doc?20051
PERFORMANCE
TEST CONDITIONS OF TEST TEST LIMITS
Thermal shock -55 °C to +150 °C, 1000 cycles, 15 min at each extreme ± 0.5 %
Short time overload 4x rated power for 5 s ± 1.0 %
Low temperature operation -65 °C for 24 h ± 0.5 %
High temperature exposure 1000 h at +170 °C ± 1.0 %
Bias humidity +85 °C, 85 % RH, 10 % bias, 1000 h ± 0.5 %
Mechanical shock 100 g’s for 6 ms, 5 pulses ± 0.5 %
Vibration Frequency varied 10 Hz to 2000 Hz in 1 min, 3 directions, 12 h ± 0.5 %
Load life 1000 h at 70 °C, 1.5 h “ON”, 0.5 h “OFF” ± 1.0 %
Resistance to solder heat +260 °C solder, 10 s to 12 s dwell, 25 mm/s emergence ± 0.5 %
Moisture resistance MIL-STD-202, method 106, 0 % power, 7b not required ± 0.5 %
PACKAGING
MODEL
REEL
TAPE WIDTH DIAMETER PIECES/REEL CODE
WSHM2818 16 mm/embossed plastic 330 mm / 13" 3500 EA
ADDITIONAL RESOURCES
Video: Power Metal Strip
Short Time Overload
www.vishay.com/videos/resistors/power-metal-strip174-resistor-short-time-overload-product-demo
70
120
100
80
60
40
20
0
-65 -50 -25 0 25 50 75 100 125 150 170
Ambient Temperature in °C
Rated Power in %
P1-P3P4-P4

WSHM2818R0150FEA

Mfr. #:
Buy WSHM2818R0150FEA
Manufacturer:
Vishay / Dale
Description:
Current Sense Resistors - SMD .015ohms 7watt 1%
Lifecycle:
New from this manufacturer.
Delivery:
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