MTR Series Power Resistors Features TO-220 / TO-247 style power package Molded case for protection and easy mounting Electrically isolated case Non-Inductive design Part Numbering System MTR 20 Product Type Power 20: 20 Watts 30: 30 Watts 35: 35 Watts 50: 50 Watts 100: 100 Watts J Resistance Tolerance D: ±0.5% F: ±1% J: ±5% K: ±10% Construction 1 Alumina Substrate 2 Resistor Layer B Packaging Code B: Bulk D 1001 TCR (PPM/°C) D: ±50 E: ±100 F: ±200 G: ±300 -:No Specified Resistance R100: 0.1Ω 0100: 10Ω 4700: 470Ω 1001: 1000Ω 1002: 10000Ω -H Code H: Mounting Hole Power Package 3 Lead 4 Molded Package Type Power Package MTR20 TO-220 MTR30 TO-220 MTR35 TO-220 MTR50 TO-220 MTR50-H TO-220 MTR100 TO-247 Rev.7 Power Resistors MTR Series Environmental Characteristics Item Requirement Test Method Temperature Coefficient of Resistance (T.C.R.) As Specified. Referenced to 25°C, ΔR taken at +105°C Short Time Overload ΔR±0.3% 2 times rated power with applied voltage not to exceed 1.5 times maximum continuous operating voltage for 5 seconds Load Life ΔR±1.0% 2,000 hours at rated power Damp Heat with Load ΔR±0.5% 40±2°C, 90~95% R.H. Max. working voltage for 1000 hrs with 1.5 hrs “ON” and 0.5 hrs “OFF” Solderability 90% min. coverage 245±5°C for 3 seconds Thermal Shock ΔR±0.3% -65°C ~150°C, 100 cycles Terminal Strength ΔR±0.2% (Pull Test) 2.4N Vibration, High Frequency ΔR±0.2% 20g peak Lead Material: Tinned Copper Maximum Torque: 0.9 N-m Without a Heat Sink, When in Free Air at 25°C, it is rated for 2.25W. The Case Temperature is to be used for the Definition of the Applied Power Limit. The Case Temperature Measurement Must be Made with a Thermocouple Contacting the Center of the Component Mounted on the Designed Heat Sink. Thermal Grease Should be Applied Properly. Rev.7 Power Resistors MTR Series MTR20 Dimensions Type Weight (g) (1000pcs) MTR20 1290 Derating Curve Electrical Characteristics Specifications Resistance Range Item TCR (PPM/°C) ±0.5% ±1% - - ±5% ±10% Type 0.05Ω -1Ω MTR20 >1Ω -3Ω - >3Ω -10Ω >10Ω –10KΩ ±300 ±100 ±200 ±50 ±100 ±200 Operating Voltage: 350Vmax Dielectric Strength: 1800VAC Insulation Resistance: 10GΩ min. Working Temperature Range: -65°C to +150°C Resistance Value< 1Ω is available Rev.7 MTR Series Power Resistors MTR30 Dimensions Weight (g) (1000pcs) 1155 Type MTR30 Derating Curve Electrical Characteristics Specifications Resistance Range Item ±0.5% ±1% - - ±5% ±10% TCR (PPM/°C) Type MTR30 0.05Ω -1Ω >1Ω -3Ω - >3Ω -10Ω >10Ω –10KΩ ±300 ±100 ±200 ±50 ±100 ±200 Operating Voltage: 420Vmax Dielectric Strength: 1800VAC Insulation Resistance: 10GΩ min. Working Temperature Range: -65°C to +150°C Resistance Value < 1Ω is available Rev.7 MTR Series Power Resistors MTR35 Dimensions Type Weight (g) (1000pcs) MTR35 1902 Derating Curve Electrical Characteristics Specifications Item TCR (PPM/°C) Resistance Range ±0.5% ±5% ±10% 0.05Ω - 0.1Ω － － >0.1Ω - 1Ω － － ±300 ±300 ±300 ±100 ±200 ±50 ±100 ±200 ±100 ±200 ±50 ±100 ±200 ±100 ±200 ±50 ±100 ±200 Type MTR >1Ω - 3Ω >3Ω - 10Ω >10Ω - 10KΩ ±50 ±100 ±200 ±1% Operating Voltage: 350VMax Dielectric Strength: 1800VAC Insulation Resistance: 10GΩ min. Working Temperature Range: -65°C to +150°C Resistance Value < 1Ω is available Rev.7 MTR50 Dimensions 0.40 0.42" (10.15 10.67mm) 0.63 0.65" (16.00 16.52mm) MTR Series Power Resistors 0.115 0.135" (2.92 3.44mm) Weight (g) (1000pcs) 1290 Type MTR50 0.045 0.055" (1.14 1.40mm) 0.016 0.024" (0.40 0.60mm) 0.026 0.034" (0.66 0.86mm) 0.45 0.55" (11.43 13.97mm) 0.19 0.21" (4.82 5.34mm) 0.10 0.16" (2.54 4.06mm) Derating Curve 0.06 0.08" (1.52 2.04mm) Electrical Characteristics Specifications Resistance Range Item ±0.5% ±1% - - ±5% ±10% TCR (PPM/°C) Type MTR50 0.1Ω -1Ω - >1Ω -3Ω - >3Ω -10Ω >10Ω –10KΩ ±300 ±100 ±200 ±50 ±100 ±200 Operating Voltage: 350VMax Dielectric Strength: 1800VAC Insulation Resistance: 10GΩ min. Working Temperature Range: -65°C to +150°C Resistance Value < 1Ω is available Rev.7 Dimensions 0.40 0.42" (10.15 10.67mm) 0.115 0.135" (2.92 3.44mm) MTR50H 0.63 0.65" (16.00 16.52mm) MTR Series Power Resistors 0.115 0.135" (2.92 3.44mm) (1.50mm) 0.121 0.129" (3.08 3.28mm) Weight (g) (1000pcs) 2770 0.045 0.055" (1.14 1.40mm) Derating Curve 0.19 0.21" (4.82 5.34mm) 0.026 0.034" (0.66 0.86mm) 0.016 0.024" (0.40 0.60mm) 0.06 0.08" (1.52 2.04mm) 0.45 0.55" (11.43 13.97mm) MTR50-H (2.00mm) 0.10 0.16" (2.54 4.06mm) Type Electrical Characteristics Specifications Resistance Range Item TCR (PPM/°C) ±0.5% ±1% - - ±5% ±10% Type MTR50 0.1Ω -1Ω - >1Ω -3Ω - >3Ω -10Ω >10Ω –10KΩ ±300 ±100 ±200 ±50 ±100 ±200 Operating Voltage: 350VMax Dielectric Strength: 1800VAC Insulation Resistance: 10GΩ min. Working Temperature Range: -65°C to +150°C Resistance Value < 1Ω is available Rev.7 MTR Series Power Resistors MTR100 Dimensions Type Weight (g) (1000pcs) MTR100 3381 Derating Curve Electrical Characteristics Specifications Resistance Range Item ±1% ±5% ±10% TCR (PPM/°C) Type - MTR100 0.05Ω -1Ω >1Ω -3Ω >3Ω -10Ω >10Ω –10KΩ ±300 ±100 ±200 ±50 ±100 ±200 Operating Voltage: 700VMax Dielectric Strength: 1800VAC Insulation Resistance: 10GΩ min. Working Temperature Range: -65°C to +175°C Resistance Value < 1Ω is available Rev.7