Type MK Precision Power Film Radial-Lead Resistors Page 1 of 2 RoHS Compliant -- MK200 Series and MK700 Series Resistors Non-Inductive with Expanded Resistance Range 1 ohm to 100 Megohms Type MK Precision Power Film Radial-Lead Resistors provide high density packaging in circuit board applications. These resistors are available in two compact rectangular package configurations with standard lead spacings. Type MK Precision Power Radial-Lead Film Resistors cover the entire resistance range from 1 ohm to 100 Megohms, with a standard tolerance of 1%. Constructed with Caddock s Micronox resistance films fired onto a solid ceramic substrate, Type MK Precision Film Resistors combine all of these outstanding advantages: 1% Resistance Tolerance is Standard - tolerances to 0.1% are available on special order. Operating Temperature - from -40C to +150C. Power Ratings at +85C and at +125C. Temperature Coefficient is 50 ppm/C from 5 ohms to 5 Megohms and 80 ppm/C up to 100 Megohms - referenced to +25C with the R taken at -15C and +105C. Extended Life Stability is typically better than 0.1% Using one compact radial-lead resistor package can per 1,000 Hours. speed assembly procedures, simplify procurement, and simplify inventory. Caddock s Non-Inductive Performance - provides faster settling times and minimum distortion in all types of higher By reducing the wide variety of sizes and types of frequency circuits. axial-lead resistors to a single compact radial-lead resistor package with advanced performance ratings, procurement This combination of performance features in a compact and inventory can be simplified. The radial leads do not radial-lead resistor package can simplify engineering, require additional bending prior to inventory, and production: insertion, and the standard lead Selecting one compact radial- spacing can reduce the time lead resistor package can required for assembly. For specific simplify board layouts. price and delivery information, (Resistors shown full size) With the exceptionally wide contact our Sales Office. range of resistance values that are available in each model of Standard Part Number Includes: Standard resistance value Type MK Precision Power Film (listed below), standard tolerance of 1%. Radial-Lead Resistors, circuits MK227 MK727 MK232 MK732 can now be designed for greater packaging densities without the need for leaving extra space 1.00 2.00 K 4.00 Meg 1.00 2.00 K 10.0 Meg where resistor value changes can require larger resistors or 2.00 4.00 K 5.00 Meg 2.00 4.00 K 20.0 Meg non-uniform lead spacings. 4.00 5.00 K 10.0 Meg 4.00 5.00 K 40.0 Meg 5.00 10.0 K 20.0 Meg 5.00 10.0 K 50.0 Meg 10.0 20.0 K 40.0 Meg 10.0 20.0 K 100 Meg Recommended use: 20.0 40.0 K 20.0 40.0 K The Type MK resistors that are shown on this data sheet 40.0 50.0 K 40.0 50.0 K are recommended by Caddock for use in commercial and 50.0 100 K 50.0 100 K industrial applications. These RoHS resistors have pure 100 200 K 100 200 K matte tin (Sn) lead finish optimized for use in commercial and 200 400 K 200 400 K industrial applications. 400 500 K 400 500 K 500 1.00 Meg 500 1.00 Meg Presently, most military applications either prohibit the use of 1.00 K 2.00 Meg 1.00 K 2.00 Meg a matte tin lead finish or are trending toward this prohibition. 4.00 Meg Therefore, Caddock does not recommend and does not 5.00 Meg support the Type MK Resistors that are shown on this data sheet for use in military applications. Non-Standard Part Number Includes: Any use of this product in a military program, against this Non-standard resistance value and/or non-standard tolerance. recommended limitation of use, must be completely supported Available in a minimum order quantity of 25 pcs. by the customer program design activity and component engineering activity based on the complete evaluation and Ordering Information: testing by these activities, there will be no support provided by Caddock for the military use. In this case, a military MK232 - 500K - 1% customer drawing must clearly specify the lead material, lead Model Number Tolerance finish, and the military customers responsibility for use. Resistor ValueType MK Precision Power Film Radial-Lead Resistors Page 2 of 2 Type MK Precision Film Resistors - Low and Standard Resistance Ranges +125C Maximum Ratings Resistance +85C Maximum Ratings (see Derating Curve) Model Dieletric Dimensions No. Strength Max. 1000 hr Max. 1000 hr Low Standard Standard Wattage Wattage Working Load Stablity Working Load Stablity Min. Min. Max. Voltage R less than Voltage R less than (0.20% (0.40% 1 Fig 10.07% 300 200 0.20 200 MK227 5 2 Meg 0.50 + 0.01 ohm) + 0.01 ohm) (0.20% (0.40% MK232 1 5 5 Meg Fig 20.07% 400 400 0.30 400 0.75 + 0.01 ohm) + 0.01 ohm) Thermal Shock: MIL-STD-202, Method 107, Resistance Tolerance: 1% is standard. Temperature Coefficient: Cond. B, except low temperature is -40C, (Tolerances to 0.1% available on Resistance Range Temp. Coef. R (0.20 percent + 0.01 ohm) max. values of 30 ohms or higher). Standard : 5 and above 50 ppm/C Moisture Resistance: MIL-STD-202, Overload/Overvoltage: 5 times rated Method 106, R (0.50 percent + 0.01 ohm) power with applied voltage not to Low : 1 to 4.99 200 ppm/C max. exceed 1.5 times maximum working voltage for 5 seconds, R (0.15 percent Temperature Coefficient referenced to Solderable Leads: Matte Tin Plated Copper. + 0.01 ohm) max. +25C, R taken at -15C and +105C. Measurement Note: Resistance measurement Operating Temperature: -40C to +150C. Insulation Resistance: 10,000 Megohms, on low resistance values shall be made at a minimum. point within 0.2 inch (5.08 mm) of the body. Load Stability: %R is shown in the table for 1,000 hours at rated voltage not to ex- ceed rated power. Type MK Precision Film Resistors - Extended Resistance Range +125C Maximum Ratings Resistance +85C Maximum Ratings (see Derating Curve) Model TC Dieletric Dimensions No. ppm/C Strength Max. 1000 hr Max. 1000 hr Wattage Working Load Stability Wattage Working Load Stability Min. Max. Voltage Voltage R less than R less than Limited Limited MK727 80 2.01 Meg 40.0 Meg 0.07%Fig 1 300 200 0.20% 200 0.50% by Max. by Max. Working Working MK732 80 5.01 Meg 100 Meg 0.07%Fig 2 400 400 0.20% 400 0.50% Voltage Voltage Resistance Tolerance: 1% Temperature Coefficient: See Table for TC Thermal Shock: MIL-STD-202, Method 107, (consult factory for tighter tolerances). value. TC referenced to +25C, R taken at Cond. B, except low temperature is -40C, -15C and +105C. R 0.50% max. Overload/Overvoltage: 1.5 times maximum working voltage for 5 seconds, Insulation Resistance: 10,000 Megohms, Moisture Resistance: MIL-STD-202, R 0.50% max. minimum. Method 106, R 0.50% max. Load Stability: %R is shown in the table Solderable Leads: Matte Tin Plated Copper. Operating Temperature: -40C to +150C. for 1,000 hours at rated voltage. Fig 2 Derating Curve: Fig 1 Model MK227 and MK727 Model MK232 and MK732 100 100% +85C .095 .005 .245 .010 .095 .005 .290 .010 (2.41 .13) (6.22 .26) (2.41 .13) (7.37 .26) 80 MK732 MK227 60 100 MEG 10.0 1% 1% 40 40% +125C .250 .050 .245 .010 .250 .050 .290 .010 (6.22 .26) (6.35 1.27) (6.35 1.27) (7.37 .26) 20 .025 .002 .025 .002 .200 .015 0 .150 .015 (.64 .05) DIA., (.64 .05) DIA., 25 85 125 150 (5.08 .38) (3.81 .38) LEADWIRE OFFSET LEADWIRE OFFSET AMBIENT TEMPERATURE, C .012 (.31) .012 (.31) FROM CENTERLINE FROM CENTERLINE DIMENSIONS IN INCHES AND (MILLIMETERS) Sales and Applications Engineering 17271 North Umpqua Hwy. ELECTRONICS, INC. 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