VISHAY WSK2512LFEA

WSK
Vishay Dale
Power Metal Strip® Resistors,
Low Value (down to 0.001 Ω), Surface Mount, 4-Terminal
FEATURES
• 4-Terminal design allows for 1 % tolerance down
to 0.001 Ω and 0.5 % tolerance down to 0.003 Ω
Pb-free
Available
• Ideal for all types of precision current sensing,
voltage division
and
pulse
applications
including switching and linear power supplies,
e3
instruments, power amplifiers
• Proprietary processing technique produces RoHS*
extremely low resistance values (down to 0.001 Ω) COMPLIANT
• All welded construction
• Solid metal Nickel-Chrome or Manganese-Copper alloy
resistive element with low TCR (< 20 ppm/°C)
• Solderable terminations
• Very low inductance 0.5 nH to 5 nH
• Excellent frequency response to 50 MHz
• Lead (Pb)-free version is RoHS compliant
STANDARD ELECTRICAL SPECIFICATIONS
RESISTANCE RANGE
Ω
GLOBAL
MODEL
POWER RATING
P70 °C
W
± 0.5 %
± 1.0 %
WSK2512
1.0
0.003 - 0.025
0.001 - 0.025
Note
• Part Marking: DALE, Value, Tolerance; due to resistor size limitations some resistance values will be marked with only the resistance value
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
WSK2512
ppm/°C
0.001 Ω - 0.0029 Ω = ± 250
0.003 Ω - 0.0049 Ω = ± 75
0.005 Ω - 0.025 Ω = ± 35
Operating Temperature Range
°C
- 65 to + 170
Maximum Working Voltage
V
(P x R)1/2
Weight/1000 pieces
g
63.6
Temperature Coefficient
GLOBAL PART NUMBER INFORMATION
NEW GLOBAL PART NUMBERING: WSK25125L000FTA (PREFERRED PART NUMBERING FORMAT)
W
S
K
2
5
1
2
5
L
0
0
0
F
T
A
GLOBAL MODEL
RESISTANCE VALUE
TOLERANCE CODE
PACKAGING CODE
SPECIAL
WSK2512
L = mΩ*
R = Decimal
5L000 = 0.005 Ω
R0100 = 0.01 Ω
* use “L” for resistance
values < 0.01 Ω
D = ± 0.5 %
F = ± 1.0 %
EA = Lead (Pb)-free, tape/reel
EK = Lead (Pb)-free, bulk
(Dash Number)
(up to 2 digits)
From 1 - 99 as
applicable
TA = Tin/lead, tape/reel (R86)
BA = Tin/lead, bulk (B43)
HISTORICAL PART NUMBERING: WSK2512 0.005 Ω 1 % R86 (WILL CONTINUE TO BE ACCEPTED)
WSK2512
0.005 Ω
1%
R86
HISTORICAL MODEL
RESISTANCE VALUE
TOLERANCE CODE
PACKAGING
* Pb containing terminations are not RoHS compliant, exemptions may apply
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For technical questions, contact: [email protected]
Document Number: 30108
Revision: 26-Mar-07
WSK
Power Metal Strip® Resistors,
Low Value (down to 0.001 Ω), Surface Mount, 4-Terminal
Vishay Dale
DIMENSIONS
L
W
H
B
b
T
A
l
d
c
a
e
DIMENSIONS in inches [millimeters]
MODEL
RESISTANCE
RANGE Ω
0.001 - 0.0049
WSK2512
0.005 - 0.025
MODEL
W
H
T
A
B
0.125 ± 0.010
[3.18 ± 0.254]
0.125 ± 0.010
[3.18 ± 0.254]
0.025 ± 0.010
[0.635 ± 0.254]
0.025 ± 0.010
[0.635 ± 0.254]
0.087 ± 0.010
[2.21 ± 0.254]
0.047 ± 0.010
[1.19 ± 0.254]
0.030 ± 0.010
[0.762 ± 0.254]
0.030 ± 0.010
[0.762 ± 0.254]
0.020 ± 0.010
[0.508 ± 0.254]
0.020 ± 0.010
[0.508 ± 0.254]
b
0.130 [3.30]
Rated Power in %
WSK2512
a
0.125 [3.18]
L
0.250 ± 0.010
[6.35 ± 0.254]
0.250 ± 0.010
[6.35 ± 0.254]
SOLDER PAD DIMENSIONS in inches [millimeters]
c
d
e
0.030 [0.76]
0.020 [0.51]
0.055 [1.40]
I
0.065 [1.65]
120
100
80
60
40
20
0
- 65 - 55 - 25
Derating
0
25
50
75 100 125 150 170
70 Ambient Temperature °C
PERFORMANCE
TEST
Thermal Shock
Short Time Overload
Low Temperature Storage
High Temperature Exposure
Bias Humidity
Mechanical Shock
Vibration
Load Life
Resistance to Solder Heat
Moisture Resistance
CONDITIONS OF TEST
- 55 °C to + 150 °C, 1000 cycles, 15 min at each extreme
5 x power for 5 s
- 65 °C for 24 h
1000 h at + 170 °C
+ 85 °C, 85 % RH, 10 % Bias, 1000 h
100 g’s for 6 ms, 5 pulses
Frequency varied 10 to 2000 Hz in 1 min, 3 directions, 12 h
1000 h at rated power, + 70 °C, 1.5 h “ON”, 0.5 h “OFF”
+ 260 °C Solder, 10 - 12 s dwell, 25 mm/s emergence
MIL-STD-202 Method 106, 0 % power, 7a and 7b not required
TEST LIMITS
± (0.5 % + 0.0005 Ω) ΔR
± (0.5 % + 0.0005 Ω) ΔR
± (0.5 % + 0.0005 Ω) ΔR
± (1.0 % + 0.0005 Ω) ΔR
± (0.5 % + 0.0005 Ω) ΔR
± (0.5 % + 0.0005 Ω) ΔR
± (0.5 % + 0.0005 Ω) ΔR
± (1.0 % + 0.0005 Ω) ΔR
± (0.5 % + 0.0005 Ω) ΔR
± (0.5 % + 0.0005 Ω) ΔR
PACKAGING
MODEL
WSK2512
REEL
TAPE WIDTH
12 mm/Embossed Plastic
DIAMETER
178 mm/7"
RIECES/REEL
2000
CODE
R86
Note
• Embossed carrier tape per EIA-481-1A
Document Number: 30108
Revision: 26-Mar-07
For technical questions, contact: [email protected]
www.vishay.com
21
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Vishay
Disclaimer
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
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document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
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Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 18-Jul-08
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