303119Z, 303119
Vishay Foil Resistors
Models # 303119Z and 303119 (Current Sensing Fixed Foil Resistor Chips
VCS1625Z/VCS1625 Configuration) Screen/Test Flow in Compliance with
EEE-INST-002, (Tables 2A and 3A, Film/Foil, Level 1) and MIL-PRF-55342
FEATURES
• Temperature coefficient of resistance (TCR):
0.05 ppm/°C typical (0 °C to + 60 °C)
0.2 ppm/°C typical (- 55 °C to + 125 °C, + 25 °C ref.)
(see table 1)
• Resistance range: 0.01 Ω to 10 Ω
• Vishay Foil resistors are not restricted to standard values,
specific “as required” values can be supplied at no extra
cost or delivery (e.g. 1.234 Ω vs. 1 Ω)
INTRODUCTION
The Z-foil technology provides a significant reduction of
the resistive component’s sensitivity to ambient temperature
variations (TCR) and applied power changes (PCR).
Designers can now guarantee a high degree of stability
and accuracy in fixed-resistor applications using solutions
based on Vishay‘s revolutionary Z-foil technology.
0.05 ppm/°C absolute TCR removes errors due to
temperature gradients.
• Tolerance: to 0.5 %
• Power coefficient “ΔR due to self heating”: 5 ppm at rated
power
• Load life stability: 0.05 % at 70 °C, 2000 h at rated power
• Electrostatic discharge (ESD) up to 25 000 V
• Short time overload < 0.02 %
Models 303119Z and 303119 are surface mount chip
resistors designed with 4 pads for Kelvin connection.
Utilizing Vishay’s Bulk Metal® Z-foil as the resistance
element, 303119Z provides performance capabilities far
greater than other resistor technologies can supply in a
product of comparable size.
• Power rating: 0.5 W at + 70 °C (figure 1)
• Non inductive, non capacitive design
• Rise time: 1 ns effectively no ringing
• Current rating: 5 A maximum
These small devices dissipate 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 as well.
• Current noise: < - 40 dB
• Voltage coefficient: < 0.1 ppm/V
• Non inductive: < 0.08 µH
Our application engineering department is available to
advise and to make recommendations.
• Non hot spot design
• For prototypes units, append a “U” to the model number
(example: 303119ZU). These units have all of the table 2A
(page 3) 100 % tests performed, with no destructive
qualification testing required (table 3A, page 3). For more
information, please contact foil@vishay.com
FIGURE 1 - POWER DERATING CURVE
+ 70 °C
- 55 °C
100
75
50
25
0
• For oriented performances please contact us
TERMINATIONS
• Two options are available:
- tin/lead plated
- 75 - 50 - 25
0
+ 25 + 50 + 75 + 100 + 125 + 150 + 175
- gold plated
Ambient Temperature (°C)
TABLE 1 - SPECIFICATIONS
TYPICAL TCR
MAXIMUM TCR
MODEL
NUMBER
RESISTANCE
RANGE
TIGHTEST RESISTANCE
TOLERANCE
POWER RATING
at + 70 °C (1)
MAXIMUM
CURRENT (1)
(- 55 °C to + 125 °C, + 25 °C ref.)
> 2.0 Ω to 10 Ω
> 0.5 Ω to 2.0 Ω
0.3 Ω to 0.5 Ω
0.5 %
1.0 %
2.0 %
303119Z
303119
0.2 ppm/°C
2.0 ppm/°C
3 ppm/°C
> 2.0 Ω to 10 Ω
> 0.5 Ω to 2.0 Ω
> 0.1 Ω to 0.5 Ω
> 0.05 Ω to 0.1 Ω
> 0.03 Ω to 0.05 Ω
> 0.01 Ω to 0.03 Ω
0.5 %
1.0 %
2.0 %
2.0 %
2.0 %
2.0 %
5 ppm/°C
10 ppm/°C
15 ppm/°C
20 ppm/°C
30 ppm/°C
50 ppm/°C
0.5 W on FR4 PCB
5 A
Note
(1) Whichever is lower
Document Number: 63167
Revision: 03-Jun-09
For any questions, contact: foil@vishay.com
www.vishay.com
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