WSR25L300FTA [VISHAY]
RESISTOR, CURRENT SENSE, METAL STRIP, 2 W, 1 %, 110 ppm, 0.0053 ohm, SURFACE MOUNT, 4527, CHIP;
| 型号： | WSR25L300FTA |
| 厂家： | 
VISHAY |
| 描述： | RESISTOR, CURRENT SENSE, METAL STRIP, 2 W, 1 %, 110 ppm, 0.0053 ohm, SURFACE MOUNT, 4527, CHIP 电阻器 |
| 文件： | 总3页 (文件大小：134K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
WSR
Vishay Dale
Power Metal Strip® Resistors,
Low Value, Surface Mount
FEATURES
• Molded high temperature encapsulation
Pb-free
•
Ideal for all types of current sensing, voltage
division and pulse applications including switching
and linear power supplies, instruments, power
amplifiers
Available
e2
• Proprietary processing technique produces
extremely low resistance values
RoHS*
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 0.5ηH to 5ηH
• Excellent frequency response
• Low thermal EMF
• Lead (Pb)-Free version is RoHS Compliant
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
SIZE
POWER RATING
RESISTANCE RANGE
P70°C
Ω
W
0ꢀ.5
ꢁꢀ05
WSR2
WSR3
4527
4527
2.0
0.01 - 1.0
0.01 - 0.2
0.001 - 1.0
0.001 - 0.2
3.0*
*The WSR3 requires a minimum of 1050 sq. mil. circuit traces connecting to the recommended solder pad
• Part Marking: DALE, Model, Value, Tolerance, Date Code
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
WSR2 & WSR3
0.005Ω - 0.0099Ω = 110
0.010Ω - 1.0Ω = 75
Temperature Coefficient
ppm/°C
Dielectric Withstanding Voltage
Insulation Resistance
VAC
Ω
> 500
> 109
Operating Temperature Range
Maximum Working Voltage
Weight/1000 pieces (typical)
°C
V
- 65/+ 275
(P x R)1/2
440
g
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: WSR2.L000FEA (preferred part numbering format)
W
S
R
2
.
L
0
0
0
F
E
A
GLOBAL MODEL
VALUE
L = Miliohm
R = Decimal
.L000 = 0.005Ω
R0ꢁ00 = 0.01Ω
TOLERANCE
D = 0.5%
F = 1.0%
J = 5.0%
PACKAGING
EA = Lead Free, tape/reel
EK = Lead Free, Bulk
TA = Tin/Lead, tape/reel (R86)
BA = Tin/Lead, bulk (B43)
SPECIAL
WSR2
(Dash Number)
(up to 3 digits)
From ꢁ-999 as
applicable
Historical Part Number example: WSR2
WSR2
0ꢀ00.Ω
ꢁ5
EA (will continue to be accepted)
ꢁ5
0ꢀ00.Ω
EA
HISTORICAL MODEL
RESISTANCE VALUE
TOLERANCE CODE
PACKAGING
* Pb containing terminations are not RoHS compliant, exemptions may apply
www.vishay.com
214
For technical questions contact: ww2bresistors@vishay.com
Document Number: 30101
Revision: 30-Sep-05
WSR
Vishay Dale
Power Metal Strip® Resistors,
Low Value, Surface Mount
DIMENSIONS
DIMENSIONS in inches [millimeters]
MODEL
Wꢁ
L
H
T
W
WSR2
WSR3
0.455 0.032 0.095 0.005 0.100 0.010 0.275 0.005 0.215 0.005
[11.56 0.813] [2.41 0.127] [2.54 0.254] [6.98 0.127] [5.46 0.127]
W
H
W
ꢁ
T
SOLDER PAD DIMENSIONS in inches [millimeters]
L
MODEL
a
b
l
I
b
WSR2
WSR3
0.155
[3.94]
0.230
[5.84]
0.205
[5.21]
a
120
100
80
60
40
20
0
-65
-25
25
75
125
175
225
275
Ambient Temperature °C
Derating
70
PERFORMANCE
TEST LIMITS
TEST
CONDITIONS OF TEST
WSR2
WSR3
Thermal Shock
- 55°C to + 150°C, 1000 cycles, 15 minutes at each extreme
WSR2: 5 x rated power for 5 sec. WSR3: 4 x rated power for 5 sec.
- 65°C for 24 hours
(0.5% + 0.0005Ω) ∆R
(0.5% + 0.0005Ω) ∆R
(0.5% + 0.0005Ω) ∆R
(1.0% + 0.0005Ω) ∆R
(0.5% + 0.0005Ω) ∆R
(0.5% + 0.0005Ω) ∆R
(0.5% + 0.0005Ω) ∆R
(1.0% + 0.0005Ω) ∆R
(0.5% + 0.0005Ω) ∆R
(0.5% + 0.0005Ω) ∆R
(0.5% + 0.0005Ω) ∆R
(2.0% + 0.0005Ω) ∆R
(0.5% + 0.0005Ω) ∆R
(1.0% + 0.0005Ω) ∆R
(0.5% + 0.0005Ω) ∆R
(0.5% + 0.0005Ω) ∆R
(0.5% + 0.0005Ω) ∆R
(2.0% + 0.0005Ω) ∆R
(0.5% + 0.0005Ω) ∆R
(0.5% + 0.0005Ω) ∆R
Short Time Overload
Low Temperature Storage
High Temperature Exposure
Bias Humidity
1000 hours @ + 275°C
+ 85°C, 85% RH, 10% Bias, 1000 hours
Mechanical Shock
Vibration
100g’s for 6 milliseconds, 5 pulses
Frequency varied 10 to 2000Hz in one minute, 3 directions, 12 hours
1000 hours @ rated power, + 70°C, 1.5 hours “ON”, 0.5 hours “OFF”
+ 260°C Solder, 10 -12 second dwell, 25mm/second emergence
MIL-STD-202 Method 106, 0% power, 7a and 7b not required
Load Life
Resistance to Solder Heat
Moisture Resistance
PACKAGING
MODEL
REEL
TAPE WIDTH
DIAMETER
PIECES/REEL
CODE
WSR2 & WSR3
24mm/Embossed Plastic
330mm/13"
1500
EA
Embossed Carrier Tape per EIA-481-2.
Document Number: 30101
Revision: 30-Sep-05
For technical questions contact: ww2bresistors@vishay.com
www.vishay.com
215
Legal Disclaimer Notice
Vishay
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.
Document Number: 91000
Revision: 08-Apr-05
www.vishay.com
1
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