rmk33n| Datasheet

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RMK 33N
Vishay Sfernice

Dual Value Chip Resistors, Center Tap
FEATURES
High precision Very low temperature coefficient < 10 ppm/ C Excellent stability 0.03 % (2000 h, rated power, at + 70 C) Wirebondable

Actual Size

The demand for high precision, high stability microchips for both military and industrial environments is increasing with the growth and sophistication of modern day hybrid circuitry. The need for high accuracy ultra stable micro dividers particularly triggered the development of these third generation nickel chromium microchip dividers which offer standards of accuracy and thermal/time stability never achieved before in the conventional second generation thin metal film technologies.

TYPICAL PERFORMANCE
ABS TCR 5 ppm/ C ABS TOL. 0.1 % TRACKING 1 ppm/ C RATIO 0.01 %

SCHEMATICS
RT R1 R2

RT = R1 + R2 with R1 = R2 Standard

(Unequal values on request)

STANDARD ELECTRICAL SPECIFICATIONS
TEST SERIES Resistance range Tracking TCR: Absolute Ratio Absolute SPECIFICATIONS ULTRAFILM 1 k to 250 k 1 ppm/ C typical ( 2 ppm/ C maximum) 5 ppm/ C maximum 10 ppm/ C maximum 0.1 %, 0.05 %, 0.02 %, 0.01 % 0.1 %, 0.5 %, 1 % 125 mW at 25 C/50 mW at + 70 C, 25 mW at + 125 C 300 ppm typical < 0.01 ppm/V 100 VDC on RT - 55 C to + 155 C (1) - 55 C to + 155 C < - 35 dB typical < 0.01 uV/ C 50 ppm 1 year MIL-STD-202 Method 308 2000 h at + 70 C under Pn (RT = R1 + R2) - 55 C to + 125 C 0 C to + 70 C - 55 C to + 155 C CONDITIONS

Tolerance: Power rating Stability

Voltage coefficient Working voltage Operating temperature range Storage temperature range Noise Thermal EMF Shelf life stability Note: (1) For Temperature up to 200 C, please consult factory

* Please see document "Vishay Green and Halogen-Free Definitions (5-2008)" http://www.vishay.com/doc?99902 www.vishay.com 28 For technical questions, contact: sfer@vishay.com Document Number: 60068 Revision: 06-Oct-08