WSLT2726 Datasheet

WSLT2726
www.vishay.com
Vishay Dale
Power Metal Strip® Resistors, High Temperature (275 °C),
High Power, Low Value, Surface Mount, 4-Terminal
FEATURES
• 4-terminal design allows for 1 % tolerance Available
down to 0.002 
• High power-to-footprint size ratio
• 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, down to
0.0005 
• All welded construction
• Solid metal nickel-chrome resistive element with low TCR
(< 20 ppm/°C)
• Very low inductance 0.5 nH to 5 nH
• Low thermal EMF (< 3 μV/°C)
• AEC-Q200 qualified available (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
GLOBAL
MODEL
SIZE
POWER RATING
P70 °C
W
TOLERANCE
±%
RESISTANCE
VALUE RANGE

RESISTANCE VALUES
CURRENTLY AVAILABLE (2)

WEIGHT
(typical)
g/1000 pieces
WSLT2726
2726
3.0
1.0
0.3m to 5m
2m, 3m, 4m, 5m
420
Notes
• Power rating depends on the max. temperature at the solder point, component placement density and the substrate material.
• Part marking: Model, value, tolerance, date code.
(2) Other values may be available, contact factory.
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
RESISTOR CHARACTERISTICS
ppm/°C
± 75 over temperature of +20 °C to +60 °C
Operating temperature range
°C
-65 to +275
Maximum continuous current
V
(P x R)1/2
Temperature coefficient
GLOBAL PART NUMBER INFORMATION
Global Part Numbering: WSLT27265L000FEA (WSLT2726, 0.005 , ± 1 %)
W
S
L
GLOBAL MODEL
WSLT2726
Revision: 17-Dec-14
T
2
7
RESISTANCE
VALUE
L = m
2L000 = 0.002 
3L000 = 0.003 
4L000 = 0.004 
5L000 = 0.005 
2
6
5
L
0
0
0
F
E
A
TOLERANCE CODE
PACKAGING CODE
SPECIAL
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
Document Number: 30185
1
For technical questions, contact: [email protected]
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
WSLT2726
www.vishay.com
Vishay Dale
DIMENSIONS
DIMENSIONS in inches (millimeters)
MODEL
WSLT2726
L
W
H
0.272 ± 0.008 0.260 + 0.012/- 0.008 0.117 ± 0.008
(6.9 ± 0.2)
(6.6 + 0.3/- 0.2)
(3.0 ± 0.2)
R
(REF.)
0.198
(5.0)
S
T
U
N
0.028 ± 0.004 0.016 ± 0.002 0.078 ± 0.004 0.039 ± 0.006
(0.7 ± 0.1)
(0.4 ± 0.05)
(2.0 ± 0.1)
(0.99 ± 0.15)
SOLDER PAD DIMENSIONS in inches (millimeters)
a
b
c
d
w
0.220
0.096
0.035
0.035
0.290
WSLT2726
(5.6)
(2.44)
(0.89)
(0.89)
(7.4)
MODEL
W
L
MODEL
S
U
WSLT2726
T
N
R
RESISTANCE VALUE
(m)
2.0
3.0
4.0
5.0
ELEMENT MATERIAL
Ni-Cr
Ni-Cr
Ni-Cr
Ni-Cr
DERATING
Rated Power in %
H
c
d
b
a
w
b
120
100
80
60
40
20
0
- 65
- 25
25
75
125
70
175
275
125
Ambient Temperature in °C
PERFORMANCE
TEST
CONDITIONS OF TEST
TEST LIMITS
Thermal shock
-55 °C to +150 °C, 1000 cycles, 15 min at each extreme
± (0.5 %) R
Short time overload
0.3 m, 0.5 m, 2 m and 3 m - 5x rated power for 5 s
4 m and 5 m - 3x rated power for 5 s
± (0.5 %) R
Low temperature operation
-65 °C for 45 min
± (0.5 %) R
High temperature exposure
1000 h at +275 °C
± (1.0 %) R
Bias humidity
+85 °C, 85 % RH, 10 % bias, 1000 h
± (0.5 %) R
Mechanical shock
100 g’s for 6 ms, 5 pulses
± (0.5 %) R
Vibration
Frequency varied 10 Hz to 2000 Hz in 1 min, 3 directions, 12 h
± (0.5 %) R
Load life
1000 h at +70 °C, 1.5 h “ON”, 0.5 h “OFF”
± (1.0 %) R
Resistance to solder heat
+260 °C solder, 10 s to 12 s dwell, 25 mm/s emergence
± (0.5 %) R
Moisture resistance
MIL-STD-202, method 106, 0 % power, 7b not required
± (0.5 %) R
PACKAGING
MODEL
WSLT2726
REEL
TAPE WIDTH
DIAMETER
PIECES/REEL
CODE
16 mm/embossed plastic
330 mm/13"
1500
EA
Note
• Embossed Carrier Tape per EIA-481.
Revision: 17-Dec-14
Document Number: 30185
2
For technical questions, contact: [email protected]
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
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www.vishay.com
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Revision: 02-Oct-12
1
Document Number: 91000