Type CHR High Resistance Precision Chip Resistors
1Pages

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 These high resistance precision chip resistors are designed for use in extremely low signal detection / amplifi cation circuits. Applications include: Photodiode signal amplifi cation, photomultipliers, ionization detection, etc. These precision high resistance chip resistors can also be ideal for use as the input resistor for high impedance voltage division. Style FC - Flip Chip version for surface mount applications. This version has solderable metallized termination pads on one side of the substrate, the same side as the resistive element. The back side of the substrate is bare ceramic. Style WB - Wire Bond versions for hybrid applications are available on a custom basis for high quantity applications. Contact Applications Engineering. Type CHR High Resistance Precision Chip Resistors Style FC - Flip Chip Version is a surface mount version with solderable pads for fl ip chip soldering. Temperature Coeffi cient: 10 Meg to 25 Meg: 25 ppm/°C -40°C to +85°C, referenced to +25°C. Above 25 Meg: 35 ppm/°C +10°C to +40°C, referenced to +25°C. 70 ppm/°C -40°C to +85°C, referenced to +25°C. TC is referenced to +25°C, ÄR taken at low temperature and high temperature. Load Life: 1000 hours at rated voltage at +85°C, ÄR ± 0.3% max. Momentary Overload: 1.5 times rated voltage, for 5 seconds, ÄR ± 0.3% max. Thermal Shock: Mil-Std-202, Method 107. -40°C to +85°C, 5 cycles, ÄR ± 0.3% max. Operating Temperature: -40°C to +85°C. A D B C Dimensions: Ko signifies tape thickness and dimension 12mm 0.473” Ao Bo 7” dia. (178 mm) .512” arbor hole (13mm) Packaging information: Style FC, fl ip chip resistors, are shipped with the bare ceramic side up in the pocket, with the solderable pads facing down. The illustration shows the orientation of the pocket. The CHR2520FC is available only with this pocket orientation. Full reel quantities: 1000 pieces per reel. Quantities of less than 250 will be shipped in tape without reel and without tape leader at the option of Caddock. Tape dimensions and materials will be consistent with EIA-481-1. Reels will be marked with a label containing Caddock logo, part number, resistor value, tol er ance, pack ag ing date, and quantity. Standard Resistance Values: Tolerance ±1% Standard. 10.0 Meg 20.0 Meg 25.0 Meg 40.0 Meg 50.0 Meg 75.0 Meg 80.0 Meg 100 Meg Carrier Tape and pocket dimensions: Tape is 12mm Carrier Tape (8mm pitch) 0.271” (6.88mm) Size 2520 0.216” (5.49mm) 0.066” (1.68mm) Ao Bo Ko 10 Meg to 100 Meg, 1% Tolerance, Temperature Coeffi cient to as low as 25 ppm/°C Model Resistance Min. Max. CHR2520FC +85°C Max. Voltage Rating Max. Temp. 150 Dimensions in inches and (millimeters) .250 ±.007 (6.35 ±.18) A B D .200 ±.007 (5.08 ±.18) .033 min. (.84) C .027 ±.003 (.69 ±.08) Comments 10 Meg 100 Meg Solderable Pads Ordering Information: CHR 2520 FC - 10.0 Meg - 1% Type CHR Physical Size 2520 = 0.250” x 0.200” Style: FC Resistor Value (Ù) See “Standard Resistance Values” Tolerance: Specifi cations: Solder attachment note: Style FC has a bare ceramic back surface. The recommended solders for fl ip chip solder attachment are 62Sn/36Pb/2Ag, 96.5Sn/3.5Ag, or standard Sn/Ag/Cu solder alloys. Custom resistance values and non-standard tol er anc es can be man u fac tured for high quantity applications. Please contact Caddock Applications Engineering. • Higher Resistances up to 1,000 Meg • Higher Voltage Ratings • Application Optimized Tolerance and TC • Precision Tolerance to ±0.25% • Offset TC (such as -150 ppm/°C ±50 ppm/°C) • Gold Wire Bondable Versions • Aluminum Wire Bondable Versions See table for dimensions in inches and (mil li me ters). Custom Type CHR Resistors 28_IL133.1004