VCS2516Z
Vishay Foil Resistors
SURFACE MOUNT
Z-Based Bulk Metal
®
Foil Technology
Surface Mount Current Sensing Chip Resistors
FEATURES
•
•
•
•
•
•
•
•
•
•
Low Ohmic Values: 0.3Ω to 1.0Ω
Nominal TCR: 2ppm/°C (- 55°C to + 125°C, + 25°C ref)
Low Power Coefficient
Resistance Tolerance: up to
±
0.1%
Power Rating: 1 watt at + 85°C
Current Rating: 5 Amperes maximum
Low Voltage Coefficient: < 0.1ppm/V
Low Inductive
Low Current Noise: < -40Db
Low Thermal EMF
Product may not
be to scale
INTRODUCTION
The
“Z-based”
foil technology provides a significant
reduction of the resistive components’ sensitivity to ambient
temperature variations and applied power changes.
Designers now can guarantee a high degree of stability and
accuracy in fixed - resistor applications using solutions based
on Vishay‘s revolutionary “Z-based” foil technology.
Model VCS chip resistors have 4 tin/lead coated surface
mount pads for 4-terminal connection where a current
sensor is required. Utilizing Vishay Bulk Metal
®
Foil as the
resistance element, they provide performance capabilities
far greater than other resistor technologies can supply in a
product of comparable size.
These small devices dissipate the heat almost entirely
through the pads so surface mount users are encouraged to
be generous with the pads and board traces. Some hybrid
users may want to use conductive epoxy for the
interconnection and gold terminations are available on
special order. (Tin/lead oxidizes on the surface and the
conductive epoxy joint eventually fails electrically.)
Lead (Pb) Free terminations (100% Sn) are available also.
Our Application Engineering Department are prepared to
advise and recommend for non-standard technical
requirements and special applications, please contact us.
TERMINATIONS
•
Lead (Pb)-free two options available:
Gold Plated Terminations
Tin Plating
•
Tin/Lead (Sn 60% Pb 40%) Coated Terminations Standard
APPLICATIONS
•
•
•
•
•
•
•
•
Automatic Test Equipment (ATE)
Airborne (in heads-up display systems)
R
2
High precision Instrumentation
Electron Beam recording equipment
R
1
Vin
-
Electron Microscopes
Vout
+
Current sensing applications
Forced Balance electronic scales
Applications that require superior frequency stability etc.
FIGURE 1 - DIMENSIONS
in inches and millimeters
Mounting
Pads (4)
I1
.200
(5.08)
.070
(1.78)
L
W
A
E1
I
1
E
1
B
H
I2
E2
R
.070
(1.78)
.260
(6.60)
I
2
Top View
Bottom View
Solder Pad Layout
DIMENSIONS
INCHES
L
H
W
A
B
0.250
±
0.010
0.160
±
0.010
0.040 maximum
0.080
±
0.005
0.040
±
0.010
mm
6.35
±
0.25
4.06
±
0.25
1.02 maximum
2.03
±
0.13
1.02
±
0.25
Electrical
Schematic
E
2
SALES
• ISRAEL: foilsales.israel@vishay.com
• FRANCE/SWITZERLAND/SOUTHERN EUROPE: foilsales.eusouth@vishay.com
• AMERICAS: foilsales.usa@vishay.com
• ASIA/JAPAN: foilsales.asia@vishay.com • UK/HOLLAND/SCANDINAVIA: foilsales.eunorth@vishay.com • GERMANY/CZECH REPUBLIC/AUSTRIA: foilsales.eucentral@vishay.com
www.vishay.com
32
For technical questions in the Americas, contact foilsupport1@vishay.com
Document Number: 63094
For technical questions in Asia/Japan/Europe/Africa/Israel, contact foilsupport2@vishay.com
Revision 05-Oct-04
VCS2516Z
Vishay Foil Resistors
TABLE 1 - SPECIFICATIONS
MODEL
NUMBER
VCS2516Z
RESISTANCE
RANGE
0.3Ω to 1.0Ω
RESISTANCE
TOLERANCE
±
1.0%
Standard
±
0.5% and
±
0.1%
available
POWER RATING
@ + 85
°
C
1 watt
on ceramic
substrate
(0.5 W on FR4 PCB)
MAXIMUM
TCR
(- 55
°
C to + 125
°
C, + 25
°
C)
±
3ppm/°C
MAXIMUM
CURRENT
5 Amps
SURFACE MOUNT
Note: Tighter tolerances are available. Please contact appication engineering
TABLE 2 - TYPICAL PERFORMANCE SPECIFICATIONS
TEST
Thermal Shock 5x (- 65
°
C to + 150
°
C)
Low Temperature Operation
Short Time Overload
High Temperature Exposure
Resistance to Bonding Exposure
Moisture Resistance
Life 2000 @ 70
°
C: Rated Power On Ceramic PCB
*Error at low values as shown + 0.001 for measurement.
MIL-PRF-55342
∆
R LIMITS
±
0.10%
±
0.10%
±
0.10%
±
0.10%
±
0.2%
±
0.2%
±
0.5%
MAXIMUM
∆
R LIMITS(*)
±
0.02%
±
0.02%
±
0.02%
±
0.02%
±
0.05%
±
0.03%
±
0.05%
TABLE 3 - ORDERING INFORMATION
Specify Vishay VCS2516 resistors as follows:
Example:
VCS2516Z
MODEL
0R3000
RESISTANCE VALUE
0.1%
TOLERANCE
B
TERMINATION
B = Standard Tin/Lead
G = Gold
S = Lead Free (Tin Plated)
W
PACKAGING
T = Tape and Reel
W = ESD Waffle Pack
Resistance Value, in ohms, is expressed by a series of 6 characters, 5 of which represent significant digits while the 6th is a dual purpose letter that
designates both the multiplier and the location of the comma or decimal.
RESISTANCE
RANGE
0.3Ω to 1Ω
LETTER
DESIGNATOR
R
MULTIPLIER
FACTOR
x1
EXAMPLE
0R3000 = 0.3000Ω
SALES
• ISRAEL: foilsales.israel@vishay.com
• FRANCE/SWITZERLAND/SOUTHERN EUROPE: foilsales.eusouth@vishay.com
• AMERICAS: foilsales.usa@vishay.com
• ASIA/JAPAN: foilsales.asia@vishay.com • UK/HOLLAND/SCANDINAVIA: foilsales.eunorth@vishay.com • GERMANY/CZECH REPUBLIC/AUSTRIA: foilsales.eucentral@vishay.com
For technical questions in the Americas, contact foilsupport1@vishay.com
Document Number: 63094
For technical questions in Asia/Japan/Europe/Africa/Israel, contact foilsupport2@vishay.com
Revision 05-Oct-04
www.vishay.com
33
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