THIN FILM CHIP RESISTORS 61 Series 0.030" x 0.030" Spectrum Microwave 61 Series 0.030 x 0.030 Thin-film Resistor Chips are available in a wide range of resistances and tolerances. Values are available from 1.25 ohms to 1 megohm. Center-tapped resistors are standard for values up to 500 K. Applications include military and industrial hybrids, and medical, aerospace and communications equipment. 61 Series resistor chips are available with either passivated nichrome or tantalum-nitride resistor metalization. Nichrome provides excellent stability and temperature coefficient in hermetic applications while tantalum-nitride provides superior moisture-resistance for non-hermetic applications. Electrical Specifications Parameter Power Rating Life Noise High Temp Exposure TCR (61AC, 61AL) TCR (61ACT) Operating voltage Moisture resistance Thermal shock Limit 200 mW 0.2% max -35 dB typ 0.2% max 50 ppm/C -50 to -120 ppm/C 100 VDC max 0.5% max 0.5% max Test Conditions (derated at 70 to 0 mW @ 150) 1000 hours @ 125 C MIL-STD-202 method 308 100 hours at 150 C -55 to 125 C -55 to 125 C MIL-STD-202 method 106 MIL-STD-202 method 107 Typical Configurations Mechanical Specifications Substrate Bond pad metalization Size Thickness Bond pad dimensions Protective overcoat (passivation) Back side Silicon with 1 micron thermal oxide Gold, 100 microinches 0.031 x 0.031 0.002 (0.78 x 0.78 mm 0.05 mm) 0.013 0.003 (0.33 0.07 mm) 0.004 x 0.004 minimum (0.1 x 0.1 mm) 0.6 microns SiO2 (61AC & 61AL versions only) Lapped silicon Spectrum Microwave Tel: 508-485-6350 Fax: 508-485-5168 165 Cedar Hill Street, Marlborough, Ma 01752 www.SpectrumMicrowave.com THIN FILM CHIP RESISTORS 61 Series 0.030" x 0.030" All parts are 100% electrically tested, sample tested per MIL-STD-38534 section 3.4, and visually inspected to MIL-STD-883 requirements. Chips are supplied in standard 2" x 2" matrix tray packaging. Ordering Information Base Part Code Value (3 digits plus exponent) Tolerance Letter 61xxx- NNNE X 61AC (Nichrome center-tapped) (Under 100 ohms, an R indicates the decimal point location.) B = 0.1% C = 0.25% D = 0.5% F = 1% G = 2% J = 5% K = 10% M = 20% 61AL (Nichrome, no center-tap, values above 500K only) 61ACT (Tantalum-nitride centertapped) Ordering examples: 61AC-5002K is a 50 kilohm 10% center-tapped resistor with nichrome metalization. 61AL-1004J is a 1 megohm 5% resistor with nichrome metalization. 61ACT-50R1F is a 50.1 ohm 1% center-tapped resistor with tantalum-nitride metalization. Availability and Limitations: 61AC series is available from 2.5 ohms to 600 kohms. 61AL series is available from 250 kohms to 1 megohm. 61ACT series is available from 1.25 ohms to 300 kohms. B tolerance is available above 250 ohms. C tolerance is available above 100 ohms. D tolerance is available above 50 ohms. F tolerance is available above 25 ohms. G tolerance is available above 12 ohms. J tolerance is available above 5 ohms. (Specifications subject to change without notice.) Spectrum Microwave also manufactures Custom Substrates on a variety of materials, a wide range of Microwave, PIN Diode Drivers, and Custom Hybrid Circuits. Please contact the factory or your local representative for more information.