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The Key Applications:
- Precision amplifiers; high-precision instrumentation; medical and
automatic test equipment; high-end stereo equipment; electron beam
scanning and recording equipment; and military, aerospace, and down-hole
equipment and instrumentation
The News:
Vishay's New SMR1DZ and SMR3DZ Ultra-High-Precision Z-Foil
Molded Surface-Mount Resistors Combine Typical TCR of ±0.05
ppm/°C, PCR of ±5 ppm at Rated Power, Tight Tolerance to
±0.01 %, and Electrostatic Discharge (ESD) Rating Above 25,000
V
- Built on Vishay's breakthrough "Z- foil" technology
- Provides a significant reduction of the resistive
component's sensitivity to ambient temperature variations (TCR) and
applied power changes (PCR)
- Improves stability by an order of magnitude compared
to any other resistor technology, allowing designers to guarantee a high
degree of accuracy in fixed-resistor applications
- Flexible terminations ensure minimal stress transference from the
PCB
Key Device Specifications:
- ±0.05-ppm/°C typical TCR (0°C to +60°C)
- ±0.2 ppm/°C from (-55°C to +125°C, +25°
ref.)
- ±5-ppm PCR at rated power
- ±0.01 % tolerance
- 5Ω to 80kΩ resistance range
- <0.1-ppm/°C voltage coefficient
- 0.05-µv/°C thermal EMF
- 1.0-ns rise time
- ESD >25 kV
- Power rating:
- MR1DZ - 250 mW at 70 °C
- MR3DZ - 600 mW at 70 °C
- Load-life stability of ±0.005 % for 2000 hours at 70
°C
- Current noise less than -40 dB
The Perspective:
Featuring flexible terminations to ensure minimal stress transference
from the PCB, the new SMR1DZ and SMR3DZ ultra-high-precision Z-Foil molded
surface-mount resistors offer a wide resistance range of 5 Ω to 80
kΩ, with any value at any tolerance available to designers for their
specific application requirements with no effect on cost or lead time.
Availability:
Samples and production quantities of the new Z-Foil resistors are
available now, with lead times of four to six weeks for larger orders.
Prototype samples available with lead times as low as 72 hours.
Datasheet
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