VISHAY VCS232Z

VCS232Z (Z-Foil Technology)
Vishay Foil Resistors
Ultra High Precision Z-Foil Power Current Sensing Resistor with
Absolute TCR of ± 0.05 ppm/°C and Load Life Stability to ± 0.005%
FEATURES
Product may not
be to scale
P
R
O
D
U
C
T
Any value at any tolerance available with resistance range
INTRODUCTION
VCS232Z is the industry’s first device to prove high rated
power, excellent load life stability along with low TCR and all
in one resistor.
The New Z-Foil Technology provides a significant reduction
of the resistive components sensitivity to ambient
temperature variations (TCR) and applied power changes
(PCR).
The latest development in Foil resistors technology have
reduced the temperature coefficient of Resistance (TCR), to
below ± 0.2 ppm/°C (part per million per degree centigrade).
± 0.05 ppm/°C Absolute TCR removes error due to
temperature gradients.
By taking advantage of the overall stability and reliability of
Vishay Bulk Metal® Z-Foil resistors, designers can
significantly reduce circuit errors and greatly improve overall
circuit performances.
Model VCS232Z is a 4 lead kelvin connected device.
Our Application Engineering Department is available to
advise and make recommendations for non-standard
technical requirements and special applications. Please
contact us.
FIGURE 1 - TRIMMING TO VALUES
(CONCEPTUAL ILLUSTRATION)
Current Path
Before Trimming
Current Path
After Trimming
N
E
W
THROUGH HOLE
• Temperature Coefficient of Resistance (TCR):
± 0.05 ppm/°C (Industrial range)
Pb-free
Available
± 0.2 ppm/°C (MIL range)
RoHS*
• Resistance Range: 0.25Ω to 500Ω
COMPLIANT
• Power Coefficient “ΔR due to self heating”:
4 ppm/W typical
• Load Life stability: < ± 0.005% 2W at 25°C for 2000 hours
• Power rating @ + 25°C: 2 Watts
• Tolerance: to ± 0.02%
• Electrostatic Discharge (ESD) above 25 000 Volts
• Short Time overload ≤ ± 0.005%
• Non hot spot design
• Thermal EMF: 0.05µV/°C
• Rise time: 1ns without ringing
• Current Noise < - 40dB
• Non Inductive/Capacitive design
• Voltage Coefficient < 0.1 ppm/V
• Thermal Finishes available Lead (Pb)-free
Tin/Lead Alloy
• Maximum current: 3 Amps
• For better performances please contact us
Trimming Process
Removes this Material
from Shorting Strip Area
Changing Current Path
and Increasing
Resistance
APPLICATIONS
•
•
•
•
•
•
•
•
Automatic Test Equipment (ATE)
High Precision Instrumentation
Electron Beam application
Current Sensing applications
Pulse applications
Military
Power amplifier
Power supplies
I1
E1
E2
I2
NOTE: Foil shown in black, etched spaces in white
FIGURE 2 - DIMENSIONS in inches (millimeters)
L
W
H
D2
D1
LL
LS
LT
Tin/Lead or Lead (Pb)-free
Solder coated
copper leads
Dimensions - Maximum Inches (mm) - unless otherwise noted
MODEL
L
H
W
LL
(Minimum)
LS
± 0.20 (± 0.5)
LT
± 0.20 (± 0.5)
D1
(Nominal)
D2
(Nominal)
VCS232Z
1.240 (32.0)
0.512 (13.0)
0.177 (4.50)
0.500 (12.7)
0.688 (17.5)
1.083 (27.5)
0.040 (1.00)
0.032 (0.80)
* Pb containing terminations are not RoHS compliant, exemptions may apply
SALES
• ASIA/JAPAN: [email protected]
• UK/HOLLAND/SCANDINAVIA: [email protected]
• AMERICAS: [email protected]
• GERMANY/CZECH REPUBLIC/AUSTRIA: [email protected] • FRANCE/SWITZERLAND/SOUTHERN EUROPE: foilsales[email protected] • ISRAEL: [email protected]
Document Number: 63095
Revision: 08-Aug-06
For technical questions, contact: [email protected]
www.vishay.com
111
VCS232Z (Z-Foil Technology)
Vishay Foil Resistors Ultra High Precision Z-Foil Power Current Sensing
Resistor with Absolute TCR of ± 0.05 ppm/°C and
Load Life Stability to ± 0.005%
TYPICAL ΔR
MAXIMUM ΔR
Low temperature storage 24 hours @ - 55°C
± 0.002% (20 ppm)
± 0.005% (50 ppm)
Short time overload 6.25 x rated power
± 0.002% (20 ppm)
± 0.005% (50 ppm)
TEST OR CONDITION
± 0.002% (20 ppm)
± 0.005% (50 ppm)
Moisture resistance
± 0.01% (100 ppm)
± 0.02% (200 ppm)
± 0.002% (20 ppm)
± 0.005% (50 ppm)
Terminal Strength
Load life (2 Watt, + 25°C, 2000 hours)
P
R
O
D
U
C
T
DWV
High temperature exposure 2000 hours @ + 150°C
* Measurement error 0.0005R
- 55 °C
Percent of
Rated Power
+ 25°C
+ 75
± 0.01% (100 ppm)
± 0.01% (100 ppm)
± 0.02% (200 ppm)
FIGURE 4 - TYPICAL TCR CURVE Z-FOIL
(for more details see table 2)
FIGURE 3 - POWER DERATING CURVE
+ 100
± 0.005% (50 ppm)
+ 500
+ 50
+ 400
+ 25
+ 300
+ 200
0
- 50
0
+ 50
+ 100
+ 150
+ 200
+ 100
ΔR
0
R
(ppm)
- 100
Ambient Temperature (°C)
(Further Derating Not Necessary)
0.05 ppm/°C
- 200
RESISTANCE
RANGE (Ω)
TIGHTEST
RESISTANCE
TOLERANCE
- 0.1 ppm/°C
0.1 ppm/°C
- 300
TABLE 2 - VCS232Z
0.14 ppm/°C
- 400
- 500
TYPICAL TCR AND MAX.
SPREAD (ppm/°C)*
0.25 to < 10
± 0.05%
± 0.2 ppm/°C ± 2.8 ppm/°C
10 to 500
± 0.02%
± 0.2 ppm/°C ± 1.8 ppm/°C
0.2 ppm/°C
- 0.16 ppm/°C
- 55
- 25
0
+ 25
+ 60 + 75
+ 100 + 125
Ambient Temperature (°C)
Weight = 1.2 gms Maximum
* MIL-Range (- 55°C to + 125°C, + 25°C Ref.)
Contact Applications Engineering for other available values
N
E
W
TABLE 3 - ORDERING INFORMATION
MODEL
VCS232Z
RESISTANCE VALUE
RESISTANCE
RANGE
0.25Ω to < 500Ω
LETTER
MULTIPLIER
DESIGNATOR
FACTOR
R
TERMINATION
ABSOLUTE
TCR
T = Lead (Pb)-free
none = Tin/Lead Alloy
TCR0.2
X 1.0
Example: 249R00 = 249Ω
ABSOLUTE
TOLERANCE
Q=
A=
B=
C=
D=
F=
0.02%
0.05%
0.1%
0.25%
0.5%
1%
PACKAGING
B = Bulk
* Specify the resistance value for each resistor of the network - even if all values are the same.
Example:
VCS232ZT1R0000TCR0.2AB
Model: VCS232Z (Z-Foil)
Value: R1 = 1Ω
Termination: Lead (Pb)-free
TCR0.2: 0.2 ppm/°C typical refers to any value in the resistance range
Tolerance: Absolute = 0.05%
Packaging: Bulk Pack
SALES
• AMERICAS: [email protected]
• ASIA/JAPAN: [email protected]
• UK/HOLLAND/SCANDINAVIA: [email protected]
• GERMANY/CZECH REPUBLIC/AUSTRIA: [email protected] • FRANCE/SWITZERLAND/SOUTHERN EUROPE: [email protected] • ISRAEL: [email protected]
www.vishay.com
112
For technical questions, contact: [email protected]
Document Number: 63095
Revision: 08-Aug-06
THROUGH HOLE
TABLE 1 - PERFORMANCES*
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
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