RMK 33N Vishay Thin Film Dual Value Chip Resistor, Center Tap FEATURES • High precision • Very low temperature coefficient • Excellent stability Actual Size TYPICAL PERFORMANCE 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. SCHEMATICS ▲ ABS TCR 5 TOL 0.1 RT R2 R1 RT= R1+R2 with R1=R2 Standard HYBRID STANDARD ELECTRICAL SPECIFICATIONS TEST SPECIFICATIONS ULTRAFILM® SERIES Resistance Range TCR: Tracking Absolute Tolerance: Ratio Absolute Power Rating: CONDITIONS 1K ohm to 250K ohms (RT = R1 + R2) ± 1ppm/°C Typical (± 2ppm/°C Max.) ± 5ppm/°C Max. ± 10ppm/°C Max. - 55°C to + 125°C 0°C to + 70°C - 55°C to + 125°C 0.1%, 0.05%, 0.02%, 0.01% ± 0.05%, ± 0.1%, ± 0.5%, ± 1% 125mW at 25°C/50mW at + 70°C, 25mW at + 125°C Stability Voltage Coefficient Working Voltage Operating Temperature Range Storage Temperature Range Noise Thermal EMF Shelf Life Stability 300ppm Typical 2000 hrs. Pn @ + 70°C Under < 0.01ppm/Volt 100VDC on RT - 55°C to + 155°C** - 55°C to + 155°C < - 35dB Typical MIL-STD-202 Method 308 < 0.01µV/°C 50ppm 1 year **for 200°C operations please consult factory. VISHAY THIN FILM • FRANCE +33.4.93.37.28.24 FAX: +33.4.93.37.27.31 • GERMANY +49.9287.710 FAX: +49 9287.70435 • ISRAEL +972.3.557.0945 FAX: +972.3.558.9121 • ITALY + 39.2.300.11919 FAX: +39.2.300.11999 • JAPAN +81.3.5464.6411 FAX: +81.3.5464.6433 • SINGAPORE +65.788.6668 FAX: +65.788.0988 • SWEDEN +46.8.594.70590 FAX: +46.8.594.70581 • UK +44 191 514 8237 FAX: +44 1953 457 722 • USA: (610) 407-4800 FAX: (610) 640-9081 www.vishay.com 154 Document Number: 60068 Revision 22-Jul-03 RMK 33N Vishay Thin Film Dual Value Chip Resistor, Center Tap DIMENSIONS in inches and millimeters B DIMENSION INCHES MILLIMETERS A 0.03 ± 0.004 0.76 ± 0.10 B 0.03 ± 0.004 0.76 ± 0.10 C 0.01 ns 0.015 0.25 to 0.40 D 0.006 0.15 E 0.004 0.10 F 0.006 0.15 Bonding Pad Area D A E F C MECHANICAL SPECIFICATIONS Resistive Element Passivated Nichrome Substrate Material Silicon (Alumina on request) Body Silicon Passivation Silicon Nitride Aluminum HYBRID Bonding pads How to Order Series Film RT Ohmic Value Absolute Tolerance Tolerance Ratio RMK33 N 100K ±0.5% 0.1% ±0.1% ±0.05% ±0.5% ±1% 0.1% 0.05% 0.02% 0.01% N = NiCr SURFACE MOUNT NETWORKS VISHAY THIN FILM • FRANCE +33.4.93.37.28.24 FAX: +33.4.93.37.27.31 • GERMANY +49.9287.710 FAX: +49 9287.70435 • ISRAEL +972.3.557.0945 FAX: +972.3.558.9121 • ITALY + 39.2.300.11919 FAX: +39.2.300.11999 • JAPAN +81.3.5464.6411 FAX: +81.3.5464.6433 • SINGAPORE +65.788.6668 FAX: +65.788.0988 • SWEDEN +46.8.594.70590 FAX: +46.8.594.70581 • UK +44 191 514 8237 FAX: +44 1953 457 722 • USA: (610) 407-4800 FAX: (610) 640-9081 Document Number: 60068 Revision 22-Jul-03 www.vishay.com 155