WSL
Vishay Dale
Document Number: 30100 For technical questions contact: ww2bresistors@vishay.com www.vishay.com
Revision: 11-Aug-04 1
Power Metal Strip
®
Resistors, Low Value, Surface Mount
FEATURES
•
Ideal for all types of current sensing, voltage division and
pulse applications including switching and linear power
supplies, instruments, power amplifiers
•
Proprietary processing technique produces extremely low
resistance values
•
All welded construction
•
Solid metal Nickel-chrome or Manganese-copper alloy
resistive element
•
Solderable terminations
•
Very low inductance 0.5nH to 5nH
•
Excellent frequency response
•
Low thermal EMF
*For values above 0.1
Ω
derate linearly to 80% rated power at 0.5
Ω
• Part Marking: DALE, Value, Tolerance: due to resistor size limitations some resistors will be marked with only the resistance value.
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
POWER RATING
P
70°C
W
RESISTANCE RANGE
Ω
WEIGHT
(TYPICAL)
g/1000 pcs
± 0.5% ± 1.0%
WSL0805 0.125 0.01 - 0.2 0.01 - 0.2 4.8
WSL1206 0.25 0.01 - 0.2 0.002 - 0.2 16.2
WSL2010 0.5 0.01 - 0.5 0.001 - 0.5 38.9
WSL2512 1.0* 0.01 - 0.5 0.001 - 0.5 63.6
WSL2816 2.0 0.01 - 0.10 0.01 - 0.10 118
TECHNICAL SPECIFICATIONS
PARAMETER UNIT WSL RESISTOR CHARACTERISTICS
Temperature Coefficient ppm/˚C ± 275 for 1m
Ω
to 2.9m
Ω
, ± 150 for 3m
Ω
to 4.9m
Ω
± 110 for 5m
Ω
to 6.9m
Ω
, ±75 for 7m
Ω
to 0.5
Ω
Operating Temperature Range °C - 65 / + 170
Maximum Working Voltage V (P x R)
1/2
GLOBAL MODEL VALUE TOLERANCE CODE PACKAGING SPECIAL
(See Standard Electrical L = Miliohm D = ± 0.5% EA = Lead Free, Tape/Reel (Dash Number)
Specifications, Global Model, R = Decimal F = ± 1.0% EK = Lead Free, Bulk (up to 2 digits)
for more options). 4L000 = 0.004ΩJ = ± 5.0% TA = Tin/Lead, Tape/Reel (R86) From 1-99 as
R0100 = 0.01ΩBA = Tin/Lead, Bulk (B43) applicable
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: WSL25124L000FEA (preferred part numbering format)
WSL 25 1 2 4L 0 0 0 FEA
Historical Part Number example: WSL2512 0.004Ω1% EA (will continue to be accepted)
WSL2512 0.004Ω1% EA
HISTORICAL MODEL RESISTANCE VALUE TOLERANCE PACKAGING
CODE
www.vishay.com For technical questions contact: ww2bresistors@vishay.com Document Number: 30100
2Revision: 11-Aug-04
WSL
Vishay Dale
Power Metal Strip
®
Resistors, Low Value, Surface Mount
DIMENSIONS
L
I
T
W
H
b
a
70
Derating
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 %
MODEL
DIMENSIONS
in inches [millimeters]
RESISTANCE
RANGE
Ω
LWH T
WSL0805
0.01 - 0.2 0.080 ± 0.010
[2.03 ± 0.254]
0.050 ± 0.010
[1.27 ± 0.254]
0.013 ± 0.005
[0.330 ± 0.127]
0.015 ± 0.010
[0.381 ± 0.254]
WSL1206
0.002 - 0.2 0.126 ± 0.010
[3.20 ± 0.254]
0.063 ± 0.010
[1.60 ± 0.254]
0.025 ± 0.010
[0.635 ± 0.254]
0.020 ± 0.010
[0.508 ± 0.254]
WSL2010
0.001 - 0.0069 0.200 ± 0.010
[5.08 ± 0.254]
0.100 ± 0.010
[2.54 ± 0.254]
0.025 ± 0.010
[0.635 ± 0.254]
0.058 ± 0.010
[1.47 ± 0.254]
0.007 - 0.5 0.200 ± 0.010
[5.08 ± 0.254]
0.100 ± 0.010
[2.54 ± 0.254]
0.025 ± 0.010
[0.635 ± 0.254]
0.020 ± 0.010
[0.508 ± 0.254]
WSL2512
0.001 - 0.0049 0.250 ± 0.010
[6.35 ± 0.254]
0.125 ± 0.010
[3.18 ± 0.254]
0.025 ± 0.010
[0.635 ± 0.254]
0.087 ± 0.010
[2.21 ± 0.254]
0.005 - 0.0069 0.250 ± 0.010
[6.35 ± 0.254]
0.125 ± 0.010
[3.18 ± 0.254]
0.025 ± 0.010
[0.635 ± 0.254]
0.047 ± 0.010
[1.19 ± 0.254]
0.007 - 0.5 0.250 ± 0.010
[6.35 ± 0.254]
0.125 ± 0.010
[3.18 ± 0.254]
0.025 ± 0.010
[0.635 ± 0.254]
0.030 ± 0.010
[0.762 ± 0.254]
WSL2816
0.01 - 0.1 0.280 ± 0.010
[7.1 ± 0.254]
0.165 ± 0.010
[4.2 ± 0.254]
0.025 ± 0.010
[0.635 ± 0.254]
0.062 ± 0.010
[1.57 ± 0.254]
MODEL
SOLDER PAD DIMENSIONS
in inches [millimeters]
RESISTANCE
RANGE
Ω
abl
WSL0805
0.01 - 0.2 0.040 [1.02] 0.050 [1.27] 0.020 [0.50]
WSL1206
0.002 - 0.2 0.050 [1.27] 0.070[1.78] 0.055 [1.40]
WSL2010
0.001 - 0.0069 0.093 [2.36] 0.120 [3.05] 0.055 [1.40]
0.007 - 0.5 0.055 [1.40] 0.120 [3.05] 0.130 [3.30]
WSL2512
0.001 - 0.0049 0.120 [3.05] 0.145 [3.68] 0.050 [1.27]
0.005 - 0.0069 0.083 [2.11] 0.145 [3.68] 0.125 [3.18]
0.007 - 0.5 0.065 [1.65] 0.145 [3.68] 0.160 [4.06]
WSL2816
0.01 - 0.1 0.130 [3.3] 0.190 [4.8] 0.040 [1.00]
Embossed carrier tape per EIA-481-1A.
PERFORMANCE
TEST CONDITIONS OF TEST TEST LIMITS
Thermal Shock - 55°C to + 150°C, 1000 cycles, 15 minutes at each extreme ± (0.5% + 0.0005
Ω
)
∆
R
Short Time Overload 5 x rated power for 5 seconds ± (0.5% + 0.0005
Ω
)
∆
R
Low Temperature Operation - 65°C for 24 hours ± (0.5% + 0.0005
Ω
)
∆
R
High Temperature Exposure 1000 hours @ + 170°C ± (1.0% + 0.0005
Ω
)
∆
R
Bias Humidity + 85°C, 85% RH, 10% Bias, 1000 hours ± (0.5% + 0.0005
Ω
)
∆
R
Mechanical Shock 100g’s for 6 milliseconds, 5 pulses ± (0.5% + 0.0005
Ω
)
∆
R
Vibration Frequency varied 10 to 2000Hz in one minute, 3 directions, 12 hours ± (0.5% + 0.0005
Ω
)
∆
R
Load Life 1000 hours @ rated power, + 70°C, 1.5 hours “ON”, 0.5 hours “OFF” ± (1.0% + 0.0005
Ω
)
∆
R
Resistance to Solder Heat + 260°C Solder, 10 - 12 second dwell, 25mm/second emergence ± (0.5% + 0.0005
Ω
)
∆
R
Moisture Resistance MIL-STD-202, Method 106, 0% power, 7a and 7b not required ± (0.5% + 0.0005
Ω
)
∆
R
PACKAGING
MODEL REEL
TAPE WIDTH DIAMETER PIECES/REEL CODE
WSL0805 8mm/Punched Paper 178mm/7" 5000 RT1
WSL1206 8mm/Embossed Plastic 178mm/7" 4000 R86
WSL2010 12mm/Embossed Plastic 178mm/7" 4000 R86
WSL2512 12mm/Embossed Plastic 178mm/7" 2000 R86
WSL2816 12mm/Embossed Plastic 178mm/7" 2000 R86
