WSHM2818R0400FEA [VISHAY]
RES 0.04 OHM 1% 7W 2818;型号: | WSHM2818R0400FEA |
厂家: | VISHAY |
描述: | RES 0.04 OHM 1% 7W 2818 |
文件: | 总4页 (文件大小:124K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
WSHM2818
www.vishay.com
Vishay Dale
Power Metal Strip® Resistors, High Power (7 W),
Low Value (Down to 0.001 Ω), Surface Mount
FEATURES
• Improved thermal management incorporated
into design
• All welded construction of the Power Metal Strip
resistors are ideal for all types of current
sensing, voltage division, and pulse applications
• Proprietary processing technique produces
extremely low resistance values
• Sulfur resistance by construction that is
unaffected by high sulfur environments
• Very low inductance (< 5 nH)
• Solid metal nickel-chrome or manganese-
copper alloy resistive element with low TCR
(< 20 ppm/°C)
LINKS TO ADDITIONAL RESOURCES
• Low thermal EMF (< 3 μV/°C)
• AEC-Q200 qualified (1)
3
D
3D Models
Design Tools
Videos
• PATENT(S): www.vishay.com/patents
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
Notes
•
(1)
Follow link to Overview of Automotive Grade Products for more details: www.vishay.com/doc?49924
Flame retardance test may not be applicable to some resistor technologies
STANDARD ELECTRICAL SPECIFICATIONS
RESISTANCE VALUE RANGE
POWER RATING
WEIGHT
(typical)
Ω
GLOBAL MODEL
SIZE
P70 °C
W
g/1000 pieces
TOL. 0.ꢀ ꢁ
0.010 to 0.1
0.101 to 0.2
TOL 1.0 ꢁ
0.001 to 0.1
0.101 to 0.2
WSHM2818
WSHM2818
2818
2818
7 (1)
6
167.8
167.8
Note
(1)
The WSHM2818 is rated at 7 W with maximum surface temperature of 180 °C
GLOBAL PART NUMBER INFORMATION
Global Part Numbering: WSHM2818R1000FEA (visit www.vishay.net Vishay Dale parts numbering manual for all options)
W
S
H
M
2
8
1
8
R
1
0
0
0
F
E
A
RESISTANCE
VALUE
GLOBAL MODEL
TOLERANCE CODE
PACKAGING CODE (1)
SPECIAL
WSHM2818
L = mΩ*
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 to 99 as
applicable
R = decimal
4L000 = 0.004 Ω
R0100 = 0.01 Ω
* Use “L” for resistance
values < 0.01 Ω
Notes
SMD Power Metal Strip Marking (www.vishay.com/doc?30327)
•
(1)
Packaging code: EB (lead (Pb)-free) and TB (tin / lead) are non-standard packaging codes designating 1000 piece reels. These non-standard
packaging codes are identical to our standard EA (lead (Pb)-free) and TA (tin / lead), except that they have a package quantity of 1000 pieces
PATENT(S): www.vishay.com/patents
This Vishay product is protected by one or more United States and international patents.
Revision: 29-Mar-2021
Document Number: 30188
1
For technical questions, contact: ww2bresistors@vishay.com
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
WSHM2818
www.vishay.com
Vishay Dale
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
RESISTOR CHARACTERISTICS
200 for 1 mΩ to 5.99 mΩ
Component temperature coefficient (including terminal) (1)
ppm/°C
75 for 6 mΩ to 200 mΩ
Element TCR (2)
ppm/°C
< 20
< 5
Inductance
nH
°C
V
Operating temperature range
Maximum working voltage (3)
-65 to +170
(P x R)1/2
Notes
(1)
(2)
(3)
Component TCR - total TCR that includes the TCR effects of the resistor element and the copper terminal
Element TCR - only applies to the alloy used for the resistor element; refer to item 1 in the construction illustration on the following page
Maximum working voltage - the WSHM is not voltage sensitive, but is limited by power / energy dissipation and is also not ESD sensitive
DIMENSIONS in inches (millimeters)
L
H
a
T
b
l
W
a
Notes
•
•
3D models available: www.vishay.com/doc?30324
Surface mount solder profile recommendations: www.vishay.com/doc?31052
RESISTANCE
RANGE
Ω
DIMENSIONS
SOLDER PAD DIMENSIONS
MODEL
L
W
H
T
a
b
l
0.280 0.010 0.180 0.010 0.059 0.010 0.125 0.010
0.138
(3.5)
0.200
(5.1)
0.024
(0.61)
WSHM2818
0.001 to 0.2
(7.1 0.25)
(4.6 0.25)
(1.50 0.25)
(3.18 0.25)
TYPICAL SENSING LAYOUT
SENSING WITH VIA LAYOUT (best performance)
a
f
e
a
a
a
c
b
b
l
l
d
c
a
b
c
l
a
b
d
e
f
l
0.138
(3.51)
0.210
(5.33)
0.020
(0.51)
0.024
(0.61)
0.143
(3.63)
0.210
(5.33)
0.026
(0.66)
0.105
(2.67)
Ø 0.020
(0.50)
0.024
(0.61)
Note
•
Sensing locations are based on the construction of the part; terminals are wrapped from the outside to underneath. These options place the
sensing location nearest the temperature stable resistance element, which minimizes contact resistance and optimizes TCR
Revision: 29-Mar-2021
Document Number: 30188
2
For technical questions, contact: ww2bresistors@vishay.com
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
WSHM2818
www.vishay.com
Vishay Dale
DERATING
PULSE CAPABILITY
Axis Title
120
100
80
60
40
20
0
10000
1000
100
click to get started
10
-65 -50 -25
0
25 50
100 125 150 170
70
www.vishay.com/resistors/power-metal-strip-calculator
Ambient Temperature (°C)
PERFORMANCE
TEST
CONDITIONS OF TEST
TEST LIMITS
Thermal shock
-55 °C to +150 °C, 2000 cycles, 15 min at each extreme
0.5 ꢀ
Refer to link for short time overload performance and pulse capability;
www.vishay.com/resistors/power-metal-strip-calculator/
Short time overload
1.0 ꢀ
Low temperature operation
High temperature exposure
Bias humidity
-65 °C for 24 h
0.5 ꢀ
1.0 ꢀ
0.5 ꢀ
0.5 ꢀ
0.5 ꢀ
1.0 ꢀ
0.5 ꢀ
0.5 ꢀ
2000 h at +170 °C
+85 °C, 85 ꢀ RH, 10 ꢀ bias, 1000 h
100 g’s for 6 ms, 5 pulses
Mechanical shock
Vibration
Frequency varied 10 Hz to 2000 Hz in 1 min, 3 directions, 12 h
2000 h at 70 °C, 1.5 h “ON”, 0.5 h “OFF”
+260 °C solder, 10 s to 12 s dwell, 25 mm/s emergence
MIL-STD-202, method 106, 0 ꢀ power, 7b not required
Load life
Resistance to solder heat
Moisture resistance
PACKAGING
REEL
MODEL
TAPE WIDTH
DIAMETER
PIECES/REEL
CODE
WSHM2818
16 mm/embossed plastic
330 mm / 13"
3500
EA
Notes
•
•
Embossed carrier tape per EIA-481
Additional packaging details at www.vishay.com/doc?20051
ADDITIONAL RESOURCES
Video: Power Metal Strip
Short Time Overload
www.vishay.com/videos/resistors/power-metal-strip174-resistor-short-time-overload-product-demo
Revision: 29-Mar-2021
Document Number: 30188
3
For technical questions, contact: ww2bresistors@vishay.com
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
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
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Revision: 09-Jul-2021
Document Number: 91000
1
相关型号:
WSHM2818_15
Power Metal Strip® Resistors, High Power (7 W) Low Value (down to 0.001 ï), Surface Mount
VISHAY
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