Type T912 and T914 Precision Resistor Networks Resistor Pairs and Quads with Ratio Characteristics for Precision Analog Circuits Type T912 and T914 Precision Resistor Networks are constructed with Caddock Tetrinox® resistance films to achieve the precise ratio performance and stability required by highly accurate amplifier circuits, voltage reference circuits, and precision bridge circuits. • Ratio Tolerance - from 0.1% to 0.01%. • Ratio Temperature Coefficient - 10 ppm/°C, 5 ppm/°C or 2 ppm/°C. • Absolute Temperature Coefficient - 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. 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 amplifier gain-setting. • 9:1 Resistance Ratio - for use in voltage reference dividers. Ordering Information: Model Number T912 - A 10K - 010 - 02 * 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 No Letter - T912 with R1 = R2 No Letter - T914 with R1 = R2 = R3 = R4 Ratio Tolerance: * Type T914 CADDOCK T914 0429 PIN 1 R1 1 .100 (2.54) 8 PINS ON .100 (2.54) CENTERS R1 3 4 DIMENSIONS IN INCHES AND (MILLIMETERS) 1 2 3 4 R3 5 Ratio Temperature Coefficient: Options for ratio temperature coefficient are provided as shown in the Ordering Information panel. Voltage Rating: 30 volts DC or RMS AC applied to R1, R2, R3 and R4. Power Rating: 0.10 watt applied to R1, R2, R3 and R4 (not to exceed rated voltage). 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. .020 (.51) .150 ±.040 (3.81 ±1.02) R2 Ratio Tolerance: Options for ratio tolerance are provided as shown in the Ordering Information panel. Storage Temperature: -55°C to +105°C. .500 ±.020 (12.70 ±.51) PIN 1 .010 (.26) R2 2 .095 (2.41) MAX. .900 ±.020 (22.86 ±.51) Absolute Tolerance: ±0.1% for all resistors. Absolute Temperature Coefficient: 25 ppm/°C referenced to +25°C, ΔR taken at 0°C and +70°C. Package Power Rating: Type T912, 0.20 watt. Type T914, 0.40 watt. Ratios Available: 1:1 and Custom. .500 ±.020 (12.70 ±.51) .020 (.51) .150 ±.040 (3.81 ±1.02) 4 PINS ON .100 (2.54) CENTERS 500K 1 Meg * (This information appears on the back side of the network) .095 (2.41) MAX. .100 (2.54) -020 = 0.02% -010 = 0.01% Special or mixed resistance values are available as custom networks. See the custom section at the bottom of this page. Type T912 CADDOCK T912 0402 = 0.10% * -100 -050 = 0.05% Standard Resistance Values: (R1) 1K 10K 40K 200K 2K 20K 50K 250K 5K 25K 100K 400K Ratios Available: 1:1, 9:1, 10:1, and Custom. .500 ±.020 (12.70 ±.51) * Ratio Temperature Track (0°C to +70°C): -10 = 10 ppm/°C -05 = 5 ppm/°C -02 = 2 ppm/°C Specifications: .010 (.26) Dielectric Strength Between Isolated Pins: 50 volts RMS AC. R4 6 7 R1 = R 2 = R 3 = R 4 8 Custom Model T912 and T914 Precision Resistor Networks For applications requiring non-standard resistance values, the T912 and T914 custom configurations 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. Applications Engineering 17271 North Umpqua Hwy. Roseburg, Oregon 97470-9422 Phone: (541) 496-0700 Fax: (541) 496-0408 © 2004 Caddock Electronics, Inc. CADDOCK e-mail: [email protected] • web: www.caddock.com For Caddock Distributors listed by country see caddock.com/contact/dist.html Contact our Applications Engineering for performance, price, and availability of these custom resistor networks. Sales and Corporate Office 1717 Chicago Avenue Riverside, California 92507-2364 Phone: (951) 788-1700 Fax: (951) 369-1151 28_IL117.1004