www.vishay.com
P R O D U C T S H E E T
POWER METAL STRIP® RESISTOR
WSL…E
Power Metal Strip® Flip Chip
(Extended Range)
KEY BENEFITS
• Very Low TCR of 15 ppm/ºC
• Long-Term Stability (± 0.5 % + 0.01 )
• Fillet-less flip chip technology for space savings (reduction of mounting
occupation area)
• SMD alternative for low power, leaded wirewound resistors
• Good overload and pulse handling capability (5 times rated power for 5 seconds)
• No noise, no voltage coefficient
APPLICATIONS
• Base station controllers, DC/DC converters, scales, test equipment,
PCMCIA, VXO, TCXO, digital and analog video processing, motor controllers
Datasheet is available on our web site at www.vishay.com
for WSL…E - http://www.vishay.com/doc?20033
R E S I S T I V E P R O D U C T S
WSL…E
Vishay
Power Metal Strip® Flip Chip (Extended Range)
Patents Pending
Patents Pending
www.vishay.com For technical questions, contact: ww2bresistors@vishay.com Document Number: 20033
210 Revision: 22-Sep-06
FEATURES
xSMD alternative for low power leaded wirewound resistors
xExcellent stability in different environmental conditions
(< 0.5 % change in resistance)
xSuperior overload and pulse handling capability as
compared to thin film (as much as 2 x better)
xLow TCR, down to ± 15 ppm/K
xLow noise: < 0.01 µV(rms)/Volt
xVoltage coefficient: < 0.00001 %/Volt (< 0.1 ppm/V)
xVery low inductance: < 0.08 µH
• Ask about further value ranges, tighter tolerances and TCR’s.
• Power rating depends on the max. temperature at the solder point, the component placement density and the substrate material
• 4-Digit Marking, according to MIL-PRF-55342 (except as noted in Ordering Information table), on top side
1) Rated voltage:
2) Contact factory using e-mail address at bottom of this page for resistance values available between 0R5 - 10R for 1506 and 0R5 - 100R for
2010 and 2512
3) Depending on solder pad dimensions
Embossed Carrier Tape per EIA-481-1.2
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
SIZE
INCH
POWER
RATING
P70°C
LIMITING ELEMENT
VOLTAGE 1) MAX
V#
TEMPERATURE
COEFFICIENT
ppm/K
TOLERANCE
%
RESISTANCE
RANGE 2)
:
E-SERIES
WSL1506E 1506 0.25 63 15, 25 0.5, 1 0R5 - 10K 96
WSL2010E 2010 0.5 100 15, 25 0.5, 1 0R5 - 10K 96
WSL2512E 2512 1.0 100 15, 25 0.5, 1 0R5 - 10K 96
TECHNICAL SPECIFICATIONS
PARAMETER UNIT WSL1506E WSL2010E WSL2512E
Rated Dissipation at 70 °C W 0.25 0.5 1.0
Limiting Element Voltage1) V#63 100 100
Insulation Voltage (1 min) Vdc/ac peak 200 200 200
Thermal Resistance K/W d 2203) d 883) d 653)
Insulation Resistance M:> 106
Category Temperature Range °C - 55/+ 150
Weight/1000 pcs g 12 25 35
PxR
PACKAGING
MODEL REEL
TAPE WIDTH DIAMETER PIECES/REEL CODE
WSL1506E 12 mm/Embossed Plastic 180 mm/7" 4000 EA
WSL2010E 12 mm/Embossed Plastic 180 mm/7" 4000 EA
WSL2512E 12 mm/Embossed Plastic 180 mm/7" 2000 EA
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: WSL1506E10E0XEA
W S L 1 5 0 6 E 1 0 E 0 X E A
WSL1506E E = ± 25 ppm/K
X = ± 15 ppm/K
(Dash Number)
(up to 2 digits)
From 1-99 as
applicable
Resistance
Tolerance (±)
0.5
0.5
0.5
1.0
1.0
1.0
Multiplier
X1
X1000
X1 000 000
X1
X1000
X1 000 000
Symbol
W
X
Y
D
E
F
GLOBAL MODEL TOLERANCE CODE SPECIALRESISTANCE VALUE & TOLERANCE PACKAGING
EA = Lead (Pb)-free, Tape/Reel
EK = Lead (Pb)-free, Bulk
TA = Tape/Reel (R86)
BA = Bulk (B43)
Patents Pending
DIMENSIONS
L
T
d
D
W
I
a
b
SIZE
INCH
DIMENSIONS in inches [millimeters]
L W Tmax D d
1506
0.15 ± 0.005
[3.81 ± 0.13]
0.062 ± 0.003
[1.57 ± 0.08]
0.025
[0.64]
0.012 ± 0.003
[0.30 ± 0.08]
0.059 ± 0.003
[1.50 ± 0.08]
2010
0.200 ± 0.005
[5.08 ± 0.13]
0.100 ± 0.003
[2.54 ± 0.08]
0.025
[0.64]
0.020 ± 0.003
[0.51 ± 0.08]
0.097 ± 0.003
[2.46 ± 0.08]
2512
0.250 ± 0.005
[6.35 ± 0.13]
0.126 ± 0.003
[3.20 ± 0.08]
0.025
[0.64]
0.024 ± 0.003
[0.61 ± 0.08]
0.123 ± 0.003
[3.12 ± 0.08]
SIZE SOLDER PAD DIMENSIONS in inches [millimeters]
INCH a b l
1506 0.015 [0.38] 0.062 [1.57] 0.118 [3.00]
2010 0.023 [0.58] 0.100 [2.54] 0.153 [3.89]
2512 0.027 [0.69] 0.126 [3.20] 0.196 [4.98]
Pulse Energy Plot:
This represents the energy in each of 50 pulses, with a
1 second rest between pulses, that it takes to shift the
WSL....E resistance ± (0.50 % + 0.01 :).
Pulse Energy
1.E+00
1.E+01
1.E+02
1.E+03
1.E+04
1.E+02 1.E+03 1.E+04 1.E+0
5
Time in Microseconds
Pulse Energy in mJoules
WSL2512E
WSL1506E
WSL2010E
0 0.25 0.50 0.75 1.0
Power in W
WSL1506E WSL2010E
WSL2512E
150
125
100
75
50
25
0
Temperature Rise
Temperature Rise In C
- 55 -25 0 25 50 75 100 125 150 175
Ambient Temperature in C
120
100
80
60
40
20
0
70
Deratin
Rated Power In %
PERFORMANCE
TEST CONDITIONS OF TEST TEST LIMITS
Thermal Shock - 55 °C to + 150 °C, 100 cycles, 15 minutes at each extreme ± (0.20 % + 0.01 :)
Short Time Overload 5 x rated power for 5 seconds ± (0.20 % + 0.01 :)
Low Temperature Storage - 65 °C for 24 hours ± (0.20 % + 0.01 :)
High Temperature Exposure 1000 hours at + 150 °C ± (0.50 % + 0.01 :)
Moisture Resistance MIL-STD-202, Method 106, 0 % power, 7a and 7b not required ± (0.50 % + 0.01 :)
Load Life 1000 hours at rated power, + 70 °C, 1.5 hours “ON”, 0.5 hours “OFF” ± (0.50 % + 0.01 :)
Vibration MIL-STD-202, Method 204D ± (0.10 % + 0.01 :)
Mechanical Shock 100 G’s for 6 milliseconds, 5 pulses ± (0.10 % + 0.01 :)
Resistance to Soldering Heat + 260 °C solder, 10 - 12 seconds dwell, 25 mm/second emergence ± (0.50 % + 0.01 :)
Revision 22-Sep-06
For technical questions, contact ww2resistors@vishay.com
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.
VMN-PT9062-0610