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) Actual Size • Wirebondable 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 TCR TOL. ABS TRACKING 5 ppm/°C 1 ppm/°C ABS RATIO 0.1 % 0.01 % SCHEMATICS RT R1 R2 RT = R1 + R2 with R1 = R2 Standard (Unequal values on request) STANDARD ELECTRICAL SPECIFICATIONS TEST SPECIFICATIONS CONDITIONS SERIES ULTRAFILM® Resistance range 1 kΩ to 250 kΩ (RT = R1 + R2) Tracking ± 1 ppm/°C typical (± 2 ppm/°C maximum) - 55 °C to + 125 °C Absolute ± 5 ppm/°C maximum ± 10 ppm/°C maximum 0 °C to + 70 °C - 55 °C to + 155 °C TCR: Tolerance: Ratio Absolute Power rating 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 Stability 300 ppm typical Voltage coefficient < 0.01 ppm/V Working voltage 100 VDC on RT 2000 h at + 70 °C under Pn - 55 °C to + 155 °C (1) Operating temperature range Storage temperature range - 55 °C to + 155 °C Noise < - 35 dB typical Thermal EMF MIL-STD-202 Method 308 < 0.01 µV/°C Shelf life stability 50 ppm 1 year 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: [email protected] Document Number: 60068 Revision: 06-Oct-08 RMK 33N Dual Value Chip Resistors, Center Tap Vishay Sfernice DIMENSIONS DIMENSION INCHES MILLIMETERS A 0.03 ± 0.004 0.76 ± 0.10 B 0.03 ± 0.004 0.76 ± 0.10 C 0.01 to 0.015 0.25 to 0.40 D 0.006 0.15 E 0.004 0.10 F 0.006 0.15 B Bonding Pad Area D A E C F MECHANICAL SPECIFICATIONS Resistive element Passivated Nichrome Substrate material Silicon (Alumina on request) Body Silcon Passivation Silicone Nitride Bonding pads Aluminum GLOBAL PART NUMBER INFORMATION New Global Part Numbering: RMK33N5KF25KB0016 (preferred part number format) R M K GLOBAL MODEL 3 3 N 5 K F 2 5 K B 0 0 1 6 R1 VALUE ABS. TOLERANCE R2 VALUE RAT. TOLERANCE OPTION Decimal R, K or M B = ± 0.1 % W = ± 0.05 % D = ± 0.5 % F = ± 1.0 % Decimal R, K or M B = ± 0.1 % W = ± 0.05 % P = 0.02 % L = 0.01 % leave blank if no option Historical Part Number example: RMK 33N 5K 25K 1 % 0.1 % R0016 (will continue to be accepted) RMK 33N 5K 25K 1 % 0.1 % R0016 HISTORICAL MODEL R1/R2 VALUE ABS. TOLERANCE AND RATIO TOLERANCE OPTION Document Number: 60068 Revision: 06-Oct-08 For technical questions, contact: [email protected] www.vishay.com 29 Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1