Type T912 and T914 Precision Resistor Networks
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Sales and Cor po rate Offi ce 1717 Chicago Av e nue Riverside, California 92507-2364 Phone: (951) 788-1700 Fax: (951) 369-1151 Applications Engineering 17271 North Umpqua Hwy. Roseburg, Oregon 97470-9422 Phone: (541) 496-0700 Fax: (541) 496-0408 e-mail: caddock@caddock.com • web: www.caddock.com For Caddock Distributors listed by country see caddock.com/contact/dist.html © 2004 Caddock Electronics, Inc. CADDOCK Resistor Pairs and Quads with Ratio Characteristics for Precision Analog Circuits Type T912 and T914 Precision Resistor Networks are constructed with Cad dock Tetrinox® resistance fi lms to achieve the precise ratio performance and stability required by highly accurate amplifi er circuits, voltage reference circuits, and precision bridge circuits. • Ratio Tolerance - from 0.1% to 0.01%. • Ratio Temperature Coeffi cient - 10 ppm/°C, 5 ppm/°C or 2 ppm/°C. • Absolute Temperature Coeffi cient - 25 ppm/°C. • Ratio Stability of Resistance at Full Load for 2,000 hours - within 0.01%. • Shelf Life Stability of Ratio for 6 Months - within 0.005%. Both the T912 and the T914 are available in 14 standard resistance values between 1K and 1 Megohm. Caddock's high thru-put manufacturing capability assures that prototype and large-volume production quantities are available either from stock or within 6 weeks after receipt of order. Specifi cations: Absolute Tolerance: ±0.1% for all resistors. Absolute Temperature Coeffi cient: 25 ppm/°C referenced to +25°C, ÄR taken at 0°C and +70°C. Ratio Tolerance: Options for ratio tolerance are provided as shown in the Ordering Information panel. Ratio Temperature Coeffi cient: Options for ratio temperature coefficient are provided as shown in the Ordering Information panel. Voltage Rating: 30 volts DC or RMS AC ap plied to R1, R2, R3 and R4. Power Rating: 0.10 watt applied to R1, R2, R3 and R4 (not to exceed rated voltage). Package Power Rating: Type T912, 0.20 watt. Type T914, 0.40 watt. Storage Temperature: -55°C to +105°C. Insulation Resistance Between Isolated Pins: Pin 2 to Pin 3, Pin 4 to Pin 5, or Pin 6 to Pin 7, 1,000 Megohms, minimum. Dielectric Strength Between Isolated Pins: 50 volts RMS AC. Custom Model T912 and T914 Precision Resistor Networks For applications requiring non-standard resistance values, the T912 and T914 custom confi gurations can include these special features: • Mixed resistance values with a maximum ratio of 250-to-1. (Example: 1 Megohm and 4 K) • Absolute TC as low as 15 ppm/°C. • Ratio TC as low as 2 ppm/°C. • Custom voltage ratings. • Matched resistors of any special value between 1 K and 2 Megohms. Contact our Applications Engineering for performance, price, and availability of these custom resistor networks. Standard Type T912 and Type T914 Precision Resistor Networks In addition to the 14 standard equal value models of the Type T912 and T914, the Type T912 can also be ordered with: • 10:1 Resistance Ratio - for use in amplifi er gain-setting. • 9:1 Resistance Ratio - for use in voltage reference dividers. Type T912 and T914 Precision Resistor Networks Ordering Information: .500 ±.020 (12.70 ±.51) .095 (2.41) MAX. PIN 1 CADDOCK T914 0429 .010 (.26) .020 (.51) .150 ±.040 (3.81 ±1.02) .100 (2.54) .900 ±.020 (22.86 ±.51) 8 PINS ON .100 (2.54) CENTERS R1 R2 1 2 3 4 R3 R4 5 6 7 8 R1 R2 1 2 3 4 Type T914 Ratios Available: 1:1 and Custom. Type T912 Ratios Available: 1:1, 9:1, 10:1, and Custom. R1 = R2 = R3 = R4 DIMENSIONS IN INCHES AND (MILLIMETERS) .010 (.26) .500 ±.020 (12.70 ±.51) .020 (.51) CADDOCK T912 0402 PIN 1 .150 ±.040 (3.81 ±1.02) .100 (2.54) .500 ±.020 (12.70 ±.51) 4 PINS ON .100 (2.54) CENTERS .095 (2.41) MAX. Ratio Code Letter: A - T912 with R1: R2 where R2 = 10R1 1K:10K 10K:100K 40K:400K 2K:20K 20K:200K 50K:500K 5K:50K 25K:250K 100K:1 Meg B - T912 with R1: R2 where R2 = 9R1 1K:9K 10K:90K 40K:360K 2K:18K 20K:180K 50K:450K 5K:45K 25K:225K 100K:900K Model Number Ratio Tolerance: -100 = 0.10% -020 = 0.02% -050 = 0.05% -010 = 0.01% Standard Resistance Values: (R1) 1K 10K 40K 200K 500K 2K 20K 50K 250K 1 Meg 5K 25K 100K 400K Ratio Temperature Track (0°C to +70°C): -10 = 10 ppm/°C -05 = 5 ppm/°C -02 = 2 ppm/°C T912 - A 10K - 010 - 02 Special or mixed resistance values are available as custom networks. See the custom section at the bottom of this page. (This information appears on the back side of the network) No Letter - T912 with R1 = R2 No Letter - T914 with R1 = R2 = R3 = R4 * * * * * 28_IL117.1004