Z POWER RESISTORS

HIGH POWER & HIGH FREQUENCY WITHOUT COMPROMISE

  • Improved Frequency Response Utilizing the Same Board Space
  • Excellent Thermal Heat Transfer Performance
  • Larger Metallized Terminal Surface Area with Reverse Aspect Ratio
  • Numerous Size, Thickness and Aspect Ratio Combinations
  • Fraction of the Cost of CVD Diamond With Proven and Conventional Materials
  • Custom Input Widths for Trace Matching Available

The Z Power style resistor gives a better frequency response with similar thermal properties in the same size package. The below chart illustrates the advantage to both RF performance and power handling associated with various Z Power configuration products. Using this technology, designers have novel and exciting combinations available by selecting the ideal thickness, package, aspect ratio and terminal geometry. When looking for a high power, high frequency resistor without compromise, the N-Series Z Power resistor is recommended. These designs have already been successfully deployed in today’s hi-tech applications.

Contact the experts at IMS to discuss how this technology can help achieve your next generation designs!

Z POWER RESISTOR DATA

TERMINAL STYLES

SCRUB CUT

To take the power handling one step further, IMS has implemented a “scrub-cut” rather than a traditional L-cut during the laser trimming process. You can see by the color mapping that there is much higher current density in the L-cut resulting in a hot spot while there is almost no current crowding in the scrub cut image.

FREQUENCY PERFORMANCE

Utilizing a smaller input terminal improves the VSWR at elevated frequencies. Compared to the standard SG the Z Power “SZG” resistor has a drafted resistor body to minimize input termination width differences from the trace. The Z Power resistors use a “scrub-cut” or edge-trim for tuning within a 2% tolerance. The combination of these 2 manufacturing characteristics maximizes the frequency performance.

REVERSE ASPECT

By changing the aspect ratio on the resistor the “term to term” distance is shortened giving the component a better frequency response at higher frequencies.

VSWR

NDR-2010SZG has a 1.2:1 VSWR (RL of -20dB) at 4.25GHz while the NDR-1020SZG has a 1.2:1 VSWR (RL of -19.8dB) at 5.45GHz with similar power ratings of 100W – 200W depending on the level of thermal management involved.

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