SURFACE MOUNT RESISTORS RoHS ü RM Series: Less Than 1 ohm & Greater than 10 Meg ohms DIMENSIONS INTRODUCTION RFE International, Inc. offers a wide range of chip resistors to meet your application requirements. They are made with metal glazed thick film on a high purity ceramic substrate which is overcoated for stability and protection. These resistors are lead free. D Glass Passivation RATINGS FOR LOW RESISTANCE <1W TYPE RM04 RM06 RM10 RM12 RM25 RM50S RM50 RM1WS Rated Max Max T.C.R. Power at Working Overload °C) (PPM/ 70 °C Voltage Voltage +700 0.063 W 0.43V 0.86V +500 +1000 0.1 W 0.55V 1.08V +600 0.125 W 0.61V 1.22V +400 0.25 W 0.33 W 0.5 W 0.5 W 1W 0.86V 0.99V 1.22V 1.22V 1.72V 1.74V 1.98V 2.44V 2.44V 3.46V RM1W 1W 1.72V 3.46V RM2W 2W 2.44V 4.88V H Resistance Range ( W) F(+1%), J(+5%) 0.1W ~ 0.33 W ~ 0.05W ~ 0.1W ~ 0.33W ~ 0.3 W 0.99W 0.091W 0.3W 0.99 W +800 +600 +500 +400 0.01W ~ 0.05W ~ 0.1W ~ 0.33W ~ 0.049W 0.091W 0.3W 0.99 W +800 +600 +400 +800 +400 +300 +800 +700 +500 +400 +800 0.01W ~ 0.1W ~ 0.33W ~ 0.01W ~ 0.05W ~ 0.1W ~ 0.01W ~ 0.05W ~ 0.1W ~ 0.33W ~ 0.02 W ~ 0.091W 0.3W 0.99 W 0.049W 0.091W 0.99W 0.049W 0.091W 0.3W 0.99W 0.99 W W C L Dimensions (mm) Type L W H C D RM04 (0402) 1.0 + 0.1 0.5 + 0.05 0.35 + 0.05 0.20 + 0.1 0.2 + 0.1 RM06 (0603) 1.6 + 0.2 0.8 + 0.15 0.50 + 0.1 0.30 + 0.2 0.3 + 0.15 RM10 (0805) 2.0 + 0.2 1.25 + 0.15 0.50 + 0.15 0.40 + 0.2 0.3 + 0.15 RM12 (1206) 3.2 + 0.2 1.6 + 0.12 0.60 + 0.15 0.45 + 0.2 0.4 + 0.2 RM25 (1210) 3.2 + 0.2 2.5 + 0.2 0.60 + 0.15 0.50 + 0.2 0.5 + 0.2 RM50 (2010) 5.0 + 0.2 2.5 + 0.2 0.60 + 0.1 0.60 + 0.2 0.6 + 0.2 RM50S (1812) 4.5 + 0.1 3.01 + 0.1 0.80 + 0.1 0.55 + 0.05 0.4 + 0.1 RM1W (2512) 6.3 + 0.2 3.1 + 0.2 0.65 + 0.1 0.60 + 0.2 0.6 + 0.2 RM1WS (1218) 3.0 + 0.1 4.6 + 0.1 0.55 + 0.05 0.45 + 0.1 0.4 + 0.1 RM2W (2030) 7.6 + 0.1 0.60 + 0.05 0.80 + 0.1 0.7 + 0.1 5.1 + 0.1 RATINGS FOR HIGH RESISTANCE >10W Resistance Range Rated Max Max T.C.R. (W) Power at Working Overload (PPM/ °C) F(+1%), J(+5%) 70 °C Voltage Voltage 10.1M ~ 54M RM04 0.0625W 50V 100V +200 10.1M ~ 100M 10.1M ~ 54M RM06 0.1W 50V 100V +200 10.1M ~ 100M 10.1M ~ 54M RM10 0.125W 150V 300V +200 10.1M ~ 100M 10.1M ~ 54M RM12 0.25W 200V 400V +200 10.1M ~ 100M 10.1M ~ 54M RM25 0.33W 200V 400V +200 10.1M ~ 100M 10.1M ~ 54M RM50S 0.5W 200V 400V +200 10.1M ~ 100M 10.1M ~ 54M RM50 0.5W 200V 400V +200 10.1M ~ 100M 10.1M ~ 54M RM1WS 1W 200V 400V +200 10.1M ~ 100M 10.1M ~ 54M RM1W 1.0W 200V 400V +200 10.1M ~ 100M 10.1M ~ 54M RM2W 2.0W 200V 400V +200 10.1M ~ 100M TYPE PART NUMBER EXAMPLE DERATING CURVE Operating Temp. Range -55°C ~ +155° 70°C Rated Load (%) 100 155°C 80 60 40 20 0 -55 -30 0 20 40 60 80 100 120 140 160 Ambient Temperature (°C) 180 RM 10 R - 0R02 - J RFE International • Tel:(949) 833-1988 • Fax:(949) 833-1788 • E-Mail [email protected] C2BB02 REV 2009.3.13