Type MK Precision Power Film Radial Lead Resistors
2Pages

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. CAD K DOC Type MK Precision Power Film Radial-Lead Resistors Comparison of Type MK and "RN" Ratings and Dimensions Resistor Type Power Rating Maximum Resistance Mounting Hole Spacing MK120 0.50 W 40 Megohms or MK620 MK132, MK132V, 0.75 W 100 Megohms MK632, or MK632V Even the smallest Type MK resistor can replace all of these RN type resistors RN50 0.05 W 1 Megohm RN55 0.10 W 5 Megohms RN60 0.125 W 10 Megohms RN65 0.25 W 20 Megohms RN70 0.50 W 40 Megohms RN50 RN55 RN65 RN70 .150 (3.81) .200 (5.08) .400 (10.15) .500 (12.70) .625 (15.90) .875 (22.20) 1.000 (25.40) All outline drawings full size - dimensions in inches and (millimeters). RN60 One standard resistor confi guration can simplify board layouts. With the exceptionally wide range of resistance values that are available in each model of Type MK Precision Film Resistors, circuits can now be designed for maximum p ackaging densities without the need for leaving extra space where resistor value changes can require larger resistors or non- uniform lead spacings. Standardization of resistor size can speed assembly procedures and reduce procurement costs. The standardization of resistor size can pay additional dividends by simplifying assembly procedures. The radial leads do not require additional bending prior to insertion, and the standard lead spacing can reduce the time required for assembly. The combination of higher power ratings and smaller size can also lower procurement costs. By reducing the wide va ri ety of sizes and types of axial-lead resistors to a single, standardized resistor type, unit prices can be lowered and inventory problems simplifi ed. For specifi c price and delivery information, contact our Sales Offi ce. The largest Type MK - rated at .75 watt - requires less board space than even the .05 watt RN50. The smallest Type MK - rated at .50 watt - provides power dis si pa tion equal to the RN70 resistor. The RN70 resistor requires a mounting hole spacing of 1 inch and a side-to-side spacing of .25 inch, resulting in a total mounting area of .25 square inch - 10 times the area required for a .50 Watt Type MK resistor! Non-Inductive with Expanded Resistance Range — 1 ohm to 100 Megohms Here are the precision radial lead resistors that provide high density packaging in circuit board applications. Available in three miniature rectangular package confi gurations with standard lead spacings, Type MK Precision Power Ra di al- Lead Film Resistors now cover the entire resistance range from 1 ohm to 100 Megohms. Constructed with Caddock's Micronox® resistance fi lms fi red onto a solid ceramic substrate, Type MK Precision Film Re sis tors combine all of these outstanding advantages: • ±1% Resistance Tolerance is Standard - tolerances to ±0.1% are available on special order. • Operating Temperature - from -55°C to +175°C. • Full Power Rating at +125°C. • Temperature Coeffi cient is 50 ppm/°C from 5 ohms to 5 Megohms and 80 ppm/°C up to 100 Megohms - referenced to +25°C with the ÄR taken at -15°C and +105°C. • Extended Life Stability is Typically Better Than 0.1% per 1,000 Hours. • Caddock's Non-Inductive Performance - provides faster settling times and minimum distortion in all types of high frequency circuits. This combination of performance advantages in a small, standardized case can simplify many engineering and pro duc tion problems: One size of Type MK resistor can replace many sizes of axial-lead resistors. This table of "RN" style axial-lead resistors shows the many sizes and power ratings that can be replaced with one of the three models of Type MK Precision Film Resistors, within the maximum allowable voltage ratings. Page 1 of 2 28_IL100.1004

Sales and Corporate Office 1717 Chicago Avenue 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. CADKDOC Temperature Coefficient: Temperature Coefficient referenced to +25°C, ÄR taken at -15°C and +105°C. Insulation Resistance: 10,000 Megohms, minimum. Resistance Range Temp. Coef.200...