Vishay has announced a new series of high-precision Bulk Metal Z-Foil resistors built using Z1-Foil technology that features enhanced accuracy, stability and fast thermal stabilisation in sizes small enough for permanent assembly in operational equipment.
The SMR3P devices feature a TCR of ±0,5 ppm/°C maximum (+25°C to
+125°C), tolerances to 0,01%, load-life stability of ±0,005% (50 ppm) after 10 000 hours with 0,6 W at 70°C, and PCR (ΔR due to self-heating) of ±5 ppm at a rated power of 0,6 W at +70°C or 0,3 W at +125°C.
The SMR3P series is targeted at feedback devices for operational amplifiers, precision voltage dividers, precision bridge resistors and decade voltage dividers in precision amplifiers; high-precision instrumentation; medical, industrial, high-end stereo and automatic test equipment; electron beam and pulse applications; and measurement instrumentation.
Chips of 1206 and larger dimensions occasionally delaminate from the PCB or develop cracks due to the stresses introduced by handling of the PCB and thermal shock. The SMR3P features a moulded package with flexible terminations that ensure minimal stress transference from the PCB due to load-induced temperature gradients and a difference in thermal coefficient of expansion (TCE). The SMR3P’s low absolute TCR reduces errors due to temperature gradients, thus reducing a major source of uncertainty in precision circuits. The resistors can withstand unconventional environmental conditions, including the extremely high temperatures and radiation-rich environments of down-hole oil exploration and well logging, or the deep-sea underwater repeaters in cross-ocean communications.
The SMR3P series features electrostatic discharge (ESD) immunity up to 25 000 V, a thermal stabilisation time of <1 second (nominal value achieved within 10 ppm of steady-state value), current noise of 0,010 μVRMS/V of applied voltage (<-40 dB) and a voltage coefficient of <0,1 ppm/V. The devices offer a resistance range of 100 Ω to 15 kΩ. Vishay Foil resistors are not restricted to standard values, and can be supplied with ‘as required’ values (eg, 1,0002 kΩ vs. 1 kΩ) at no extra cost or delivery time. The resistors offer a non-inductive
(< 0,08 μH), non-capacitive design and feature lead-free or tin/lead alloy terminal finishes.
Cooling solutions for modern electronics Future Electronics
Passive Components
As electronic systems become more compact and powerful, effective thermal management has become a critical aspect of product design.
Read more...DC-link capacitors with ultra-low inductance Electrocomp
Passive Components
TDK Corporation recently released its new series of MKP DC high-frequency film capacitors, a high-performance DC link capacitor platform for next-generation SiC-based power electronics.
Read more...Same Sky expands rectangular connector portfolio Future Electronics
Interconnection
The portfolio includes male pin headers, female pin headers, and box headers, giving engineers the flexibility to select the most appropriate connector style for their specific design requirements.
Read more...Generating negative voltages from a positive supply Altron Arrow
Editor's Choice Passive Components
It is common for IoT devices, industrial sensors, meters, and medical equipment to require both a positive and negative voltage, and this article explains the options available to produce a negative rail from a positive rail supply.
Read more...Advanced sensing powers modern drones Future Electronics
DSP, Micros & Memory
Allegro MicroSystems has a portfolio of sensors, motor drivers, and power management devices specifically designed to enhance drone efficiency, reliability, and control.
Read more...Rapid IoT prototyping simplified Future Electronics
Test & Measurement
The STEVAL-MKBOXPRO from STMicroelectronics is a compact, ready-to-use wireless development kit designed to accelerate the creation of intelligent IoT and wearable applications.
Read more...High-precision thick-film resistors Avnet Silica
Passive Components
The new Panasonic ERJPC high precision thick-film resistors series deliver accuracy levels previously only achievable with thin film technology, offering customers higher power density and cost-effective performance.
Read more...Semi-shielded power inductors RS South Africa
Passive Components
The SDCx family from Eaton includes the SDCL and SDCH series of semi-shielded power inductors designed for reliable performance in consumer, industrial, energy, and medical applications.
Read more...Cortex-M33 performance for cost-sensitive designs Future Electronics
DSP, Micros & Memory
The STM32C5 series from STMicroelectronics introduces a new generation of entry-level microcontrollers engineered to deliver enhanced processing capability, modern security, and cost-effective scalability for connected embedded applications.
Read more...Next generation HMI processing platform Future Electronics
DSP, Micros & Memory
Microchip’s latest hybrid MCU SiP integrates an Arm926EJ-S processor with 512 Mb of DDR2 SDRAM and is engineered to meet the rising demand for sophisticated HMI solutions in modern vehicles.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version