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
VISHAY [ VISHAY ]
