SMRC1D Datasheet, PDF (1/3 Pages) Vishay Siliconix – Bulk Metal® Foil Technology Surface Mount Precision Resistor

SMRC1D
Vishay Foil Resistors
Bulk Metal^® Foil Technology
Surface Mount Precision Resistor
Product may not
be to scale
The SMRC1D is a truly precision molded surface mountable
resistor. It utilizes the Bulk Metal^® Foil technology for
the resistive element with its inherent low TCR and long term
stability. This surface mountable product affords similar
performance to the time tested VSR molded through hole
product.
Voltage division with tight tracking < 5ppm/°C can be achieved
with 2 randomly selected units even with a large ratio between
the two values.
The molded SMRC1D, while slightly larger and heavier than
the Bulk Metal^® Foil VSM surface mountable chip resistor, has
a rugged construction capable of withstanding significant thermal
cycling and allows for board installation without concern for
tolerance shifts due to manufacturing processes or mechanical
stresses.
FEATURES
• Small footprint
• Temperature Coefficient of Resistance:
± 4ppm/°C (0°C to + 60°C)
• Value Range: 5Ω to 33KΩ
• Tight Tolerances available to ± 0.01 percent
• Power: 0.25 watts @ + 70°C
• Excellent Long Term Stability: better than ± 0.02% maximum
• Low Thermal EMF: 0.1mV/°C maximum
• Low Noise, High Frequency Operation
• Matched Sets Available
FIGURE 2 - TEMPERATURE COEFFICIENT
OF RESISTANCE CURVE (0°C TO + 60°C)
VISHAY STANDARD TCR LIMITS
0°C to + 60°C
+ 100
+ ^4ppm/°C
+ 140
∆R
R0
(ppm)
- 100
- _4ppm/°C
FIGURE 1 - POWER DERATING CURVE
0
+ 25
- 140
+ 60
Temperature, °C
–55°C
200%
+70°C
175%
150%
125%
100%
75%
50%
25%
0
–50 –25 0 +25 +50 +75 +100 +125 +150 +175 +200
Ambient Temperature (°C)
FIGURE 3 - TEMPERATURE COEFFICIENT
OF RESISTANCE CURVE (55°C TO +125°C)
VISHAY STANDARD TCR LIMITS
- 55°C to + 125°C
+ 640
+ 500
+ ^8ppm/°C
+ 800
∆R
R0
(ppm)
- 500
- 640
- 55
- _8ppm/°C
+ 25
Temperature, °C
- 800
+ 125
VISHAY FOIL • FRANCE +33.4.93.37.28.24 FAX: [phone]
• GERMANY +49.9287.710 FAX: [phone]
• ISRAEL +972.3.557.0945 FAX: [phone]
• ITALY + 39.2.300.11919 FAX: [phone]
• JAPAN +81.42.729.0661 FAX: [phone]
• SINGAPORE +65.788.6668 FAX: [phone]
www.vishay.com
56
• SWEDEN +46.8.594.70590 FAX: [phone]
• UK [phone] FAX: [phone]
• USA [phone] FAX: [phone]
Document Number: 63073
Revision 26-Mar-02