VCS1610 Datasheet, PDF (1/4 Pages) Vishay Siliconix – High Precision Foil Surface Mount Current Sensing Chip Resistors with TCR of ± 2 ppm/°C,

VCS1610 (Kelvin Connection)
Vishay Foil Resistors
High Precision Foil Surface Mount Current Sensing Chip
Resistors with TCR of ± 2 ppm/°C, Load Life Stability of ± 0.02 %,
ESD Immunity up to 25 kV and Fast Thermal Stabilization
Any value at any tolerance available within resistance range
INTRODUCTION
Model VCS1610 is a surface mount resistor designed with
4 pads for Kelvin connection. Utilizing Vishay Bulk Metal^®
Foil as the resistance element, it provides performance
capabilities far greater than other resistor technologies can
supply in a product of comparable size. Low TCR removes
errors due to temperature gradients.
The VCS1610 has improved load life stability of ± 0.02 % at
+ 70 °C for 2000 h at rated power. Other technologies of
current sensing resistors offer a load life stability of ≥ 0.5 %
through a 1000 h workload.
This small device dissipates heat almost entirely through the
pads so surface mount users are encouraged to be
generous with the board’s pads and traces. Gold
terminations are available on special order.
Our application engineering department is available to
advise and to make recommendations. For non standard
technical requirements and special applications, please
contact us.
FEATURES
• Temperature coefficient of resistance (TCR):
± 2.0 ppm/°C typical (- 55 °C to + 125 °C,
+ 25 °C ref.) (see table 1)
• Tolerance: to ± 0.5 %
• Load life stability:
± 0.02 % at 70 °C, 2000 h at rated power
Pb-free
Available
RoHS*
COMPLIANT
• Power rating: 0.25 W at + 70 °C
• Electrostatic discharge (ESD) above 25 000 V
• Fast thermal stabilization due to proprietary
processing technique
• Short time overload ≤ 0.005 %
• Ohmic values: 0.2 Ω to 0.5 Ω (for higher or lower values
please contact us)
• Non inductive, non capacitive design
• Thermal EMF: 0.05 µV/°C typical
• Current noise: < - 42 dB
• Rise time: 1 ns without ringing
• Voltage coefficient: < 0.1 ppm/V
• Non inductive: < 0.08 µH
• Weight: 0.027 mg
TERMINATIONS
• Two lead (Pb)-free options are available:
Gold plated or tin plated
• Tin/lead plated
FIGURE 1 - POWER DERATING CURVE
- 55 °C
100
+ 70 °C
75
50
25
0
- 75 - 50 - 25 0 + 25 + 50 + 75 + 100 + 125 + 150 + 175
Ambient Temperature (°C)
APPLICATIONS
• Automatic test equipment (ATE)
• Airborne (in heads-up display systems)
• High precision instrumentation
• Electron beam recording equipment
• Electron microscopes
• Current sensing applications
• Force balance electronic scales
• Military
• Medical
• Down-hole (high temperature)
Electrical
Schematic
I₁
E₁
R
I2
E₂
TABLE 1 - TOLERANCE AND TCR VS. RESISTANCE VALUE (- 55 °C to + 125 °C, + 25° Ref.)
VALUE (Ω)
TOLERANCE
TYPICAL TCR
MAXIMUM TCR
0R200 to 0R500
0.5 %, 1 %
± 2 ppm/°C
Note
• Tighter tolerances and higher values are available. Please contact application engineering [e-mail]
± 15 ppm/°C
* Pb containing materials are not RoHS compliant, exemptions may apply
Document Number: 63137
Revision: 23-Jul-08
For any questions, contact: [e-mail]
www.vishay.com
1