Vishay Dale CRA04S08347R0JTD

Summary of Vishay Dale CRA04S08347R0JTD Resistor Array

Engineers and procurement professionals seeking optimized resistor solutions for compact, high-density designs have increasingly turned to resistor arrays to save both board area and cost. The Vishay Dale CRA04S08347R0JTD is a thick film resistor array tailored for such needs. Designed to deliver reliable resistance in a miniature 0804 package, this model features four isolated 47 Ohm resistors with ±5% tolerance, each element supporting a power rating of 62.5mW. The CRA04S series offers cost-effective consolidation of multiple discrete resistors, facilitating not only size reduction but also improved assembly efficiency and design flexibility in high-reliability applications.

Main Attributes of the CRA04S08347R0JTD

The CRA04S08347R0JTD resistor array brings a suite of practical features well-suited for today’s dense circuit requirements. The device employs a thick film technology on a high-grade ceramic substrate, ensuring stability and resilience. Notably, the CRA04S series utilizes convex terminals with square corners, supporting automated assembly while maintaining secure solder joints. The series supports a wide resistance range (10 Ohms to 1 MOhm), though the CRA04S08347R0JTD is specifically 47 Ohm. Each unit contains isolated resistors to provide design flexibility in various circuit configurations.

Solderability is a key focus, with lead-free solder contacts utilizing a nickel barrier and pure tin plating. This dual compatibility with both lead-free and traditional leaded soldering processes streamlines manufacturing for companies adapting to evolving solder standards. Full compliance with RoHS directive 2002/95/EC and alignment with hazardous substance restrictions further complement the device’s safety and reliability credentials.

Detailed Technical Data for the CRA04S08347R0JTD

Understanding the technical parameters of the CRA04S08347R0JTD is critical for component selection. Each resistor within the array is rated at 47 Ohms (±5% tolerance) and can dissipate up to 62.5mW. The maximum permissible film temperature is 155°C—designers must ensure heat flow management through the PCB layout to avoid exceeding this threshold. The temperature coefficient for this model is ±200ppm/°C, indicating suitable stability for most commercial and industrial environments.

Electrical rating calculations for the device follow the square root of power multiplied by resistance (${ V = \sqrt{P \times R} }$). This means the engineer should ensure the operating voltage does not surpass the calculated rated limit for safe function within the circuit. The robust construction allows extended storage (up to 20 years) and guarantees solderability for at least two years after production.

Physical Layout and Packaging Details of the CRA04S08347R0JTD

The structural aspects of the CRA04S08347R0JTD contribute to its utility in high-density board layouts. Housed in an 0804 package, the array contains eight pins, with each resistor isolated and arranged to allow standard pad pitch. The convex terminal design with square corners not only ensures automated pick-and-place compatibility but also contributes to the longevity and reliability of the soldered joints.

Component count on the board can be significantly reduced by using such resistor networks, streamlining the assembly process and potentially lowering the total cost of ownership. The minimized footprint also permits more compact board designs, making the CRA04S08347R0JTD highly attractive for consumer electronics, instrumentation, and communication devices.

Regulatory Compliance and Environmental Impact of the CRA04S08347R0JTD

The CRA04S08347R0JTD demonstrates strong compliance with contemporary environmental and material requirements. Vishay confirms the array's compatibility with RoHS directives, both the original 2002/95/EC and the recast 2011/65/EU, thus restricting the use of hazardous substances within the device. The device is also manufactured in accordance with halogen-free requirements as per JEDEC JS709A, supporting designer efforts to meet stringent environmental regulations in global markets.

Possible Substitute or Alternative Models for the CRA04S08347R0JTD

Component lifecycle management is crucial for any electronics developer. Alternative or equivalent resistor arrays may be considered should the CRA04S08347R0JTD face extended lead times or availability challenges. Comparable models within the Vishay Dale CRA04S series, featuring similar resistance values and package outlines, can serve as direct replacements. Additionally, other manufacturers’ thick film 0804 isolated resistor arrays—with equivalent resistance, tolerance, and temperature coefficient—may be suitable substitutes, provided mechanical and solderability specifications align with design requirements. When evaluating alternatives, it is imperative to review not only electrical parameters but also regulatory compliance, packaging, and terminal finish to ensure drop-in compatibility with existing PCB layouts.

Conclusion

: Evaluating the CRA04S08347R0JTD for Modern Electronic Design

The Vishay Dale CRA04S08347R0JTD resistor array stands out as a robust solution for designers seeking to balance compactness, performance, and compliance. Its isolated-resistor construction, high-reliability features, and compatibility with both conventional and lead-free manufacturing processes make it well-suited for a variety of high-density applications. Careful consideration of its technical and environmental attributes, along with a structured approach to sourcing equivalents or replacements, enables engineering teams and procurement specialists to integrate the CRA04S08347R0JTD confidently within modern electronic assemblies.