WSL2512, 0.5 % Stability
®
Improved Stability (0.5 %), Power Metal Strip Resistors
Low Value (0.01 Ω to 0.1 Ω), Surface Mount
to 0.1
FEATURES
MODEL
H
W
T
L
l
b
a
Vishay Dale
Low Value (0.01
DIMENSIONS
), Surface Mount
DIMENSIONS
in inches [millimeters]
L
W
H
T
0.250 ± 0.010 0.125 ± 0.010 0.025 ± 0.010 0.030 ± 0.010
[6.35 ± 0.254] [3.18 ± 0.254] [0.635 ± 0.254] [0.762 ± 0.254]
WSLS2512
MODEL
WSLS2512
SOLDER PAD DIMENSIONS
in inches [millimeters]
a
0.065
[1.65]
b
0.145
[3.68]
l
0.160
[4.06]
120
100
80
60
STANDARD ELECTRICAL SPECIFICATIONS
RESISTANCE RANGE
± 1.0 %
0.01 - 0.1
63.6
0
- 65 - 50
GLOBAL MODEL
40
20
POWER RATING
P
70 °C
W
WEIGHT
(typical)
g/1000 pcs
WSLS2512
1.0
Rated Power in
%
Current sensing in high-temperature (+ 125 °C)
applications
Greater stability with maximum resistance
change of 0.5 % through a 2000 hour workload
Ideal for all types of current sensing, voltage
division and pulse applications including
switching
and
linear
power
supplies,
instruments, power amplifiers and shunts
Proprietary processing technique produces extremely low
resistance values (0.01 to 0.1 )
Durable with all welded construction
Solid metal Nickel-chrome resistive element with low TCR
(< 20 ppm/°C)
Lead (Pb)-free construction is RoHS compliant
Very low inductance 0.5 nH to 2 nH
Excellent frequency response to 50 MHz
Low thermal EMF (< 3 µV/°C)
Note
- 25
0
25
50
75
100
125
150
170
• Part Marking: Value, Tolerance Code
Derating
70 Ambient Temperature in °C
TECHNICAL SPECIFICATIONS
WSLS2512 RESISTOR CHARACTERISTICS
TEST
Thermal Shock
PARAMETER
± 75
- 65/+ 170
(P ×
R)
1/2
UNIT
PERFORMANCE
CONDITIONS OF TEST
- 55 °C to + 150 °C, 1000 cycles, 15 minutes at each extreme
5 x rated power for 5 seconds for WSL2512 size and smaller
Low Temperature Operation
High Temperature Exposure
Bias Humidity
Mechanical Shock
Vibration
Load Life
Resistance to Solder Heat
Moisture Resistance
- 65 °C for 45 minutes
1000 hours at + 170 °C
+ 85 °C, 85 % RH, 10 % Bias, 1000 hours
100 g’s for 6 milliseconds, 5 pulses
Frequency varied 10 to 2000 Hz in one minute, 3 directions, 12 hours
2000 hours at 70 °C, 1.5 hrs “ON”, 0.5 hours “OFF”
+ 260 °C Solder, 10 - 12 second dwell, 25 mm/second emergence
MIL-STD-202, Method 106, 0 % power, 7b not required
TEST LIMITS
± (0.5 % + 0.0005
± (0.5 % + 0.0005
± (0.5 % + 0.0005
± (1.0 % + 0.0005
± (0.5 % + 0.0005
± (0.5 % + 0.0005
± (0.5 % + 0.0005
± 0.5 %
R
± (0.5 % + 0.0005
± (0.5 % + 0.0005
)
R
)
R
)
R
)
R
)
R
)
R
)
R
)
R
)
R
Temperature Coefficient
ppm/°C
Short Time Overload
Operating temperature range
°C
Maximum Working Voltage
V
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: WSLS2512R0100FEA
W
PACKAGING CODE
EA
= Lead (Pb)-free, Tape/Reel
EK
= Lead (Pb)-free,Bulk
SPECIAL
S
L
S
2
5
1
2
R
0
1
0
0
F
E
A
PACKAGING
MODEL
WSLS2512
REEL
TAPE WIDTH
12 mm/Embossed Plastic
DIAMETER
178 mm/7"
PIECES/REEL
2000
CODE
EA
GLOBAL MODEL
RESISTANCE VALUE
TOLERANCE CODE
WSLS2512
R
= Decimal
R0100
= 0.01
F
= ± 1.0 %
NOTICE
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc., or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information
contained herein is intended to provide a product description only. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay’s terms and
conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness for a particular
purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling
these products for use in such applications do so at their own risk and agree to fully indemnify Vishay for any damages resulting from such improper use or sale.
For technical questions, contact ww2bresistors@vishay.com
Revision 24-Oct-06
(Dash Number)
(up to 2 digits)
From 1 - 99 as
applicable
Note
VMN-PT9195-0610
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