SMD Low Ohmic - Current Sense Resistors Type RL73 Series Key Features Up to 1 Watt at 70C Values down to R10 8 chip sizes Ideal for current detection Value marked on resistor Sizes 0201 to 2512 0402, 0603, 0805, 1206, 2512 stocked in distribution Applications Audio Communications Automotive Low voltage power supplies TE Connectivity are pleased to offer this thick film chip resistor for current sensing positions. It has a special metal glaze resistive element and a nickel barrier layer beneath the solder to Power management applications prolong terminal life. Following the developments by semiconductor manufacturers in the production of a range of IC s for battery charge management and low voltage power supplies, the RL73 Series satisfies the demand for a low ohmic shunt resistor to act as a current sensor. Characteristics - Electrical Type TCR Power rating Resistance TDF TD TE Tape 70C Range RL73X1H 1000PPM 0.05W R10 - R13 1000 5000 -- Paper tape RL73V1H 600PPM 0.05W R15 - R47 1000 5000 -- Paper tape RL73N1H 300PPM 0.05W R51 - R91 1000 5000 -- Paper tape RL73N1E 300PPM 0.0625W R10 - R91 1000 5000 -- Paper tape RL73N1J 300PPM 0.1W R10 - R91 1000 5000 -- Paper tape RL73H2A 100PPM 0.125W R10 - R91 1000 5000 -- Paper tape RL73K2A 200PPM 0.125W R10 - R91 1000 5000 -- Paper tape RL73H2B 100PPM 0.25W R10 - R91 1000 5000 -- Paper tape RL73K2B 200PPM 0.25W R10 - R91 1000 5000 -- Paper tape RL73H2E 100PPM 0.5W R10 - R91 1000 5000 -- Paper tape RL73K2E 200PPM 0.5W R10 - R91 1000 5000 -- Paper tape RL73H2H 100PPM 0.75W R10 - R91 1000 -- 4000 Embossed plastic tape RL73K2H 200PPM 0.75W R10 - R91 1000 -- 4000 Embossed plastic tape RL73H3A 100PPM 1W R10 - R91 1000 -- 4000 Embossed plastic tape RL73K3A 200PPM 1W R10 - R91 1000 -- 4000 Embossed plastic tape Operating Voltage=(P*R) Overload Voltage=2.5*(P*R) Operating Current=(P/R) Maximum operating temperature -55C to +155C Power Derating Curve 100 80 60 40 20 0 0 20 40 60 80 100 120 140 160 180 Ambient Temperature (C) * Recommended Circuit Board Design For resistors operated in ambient temperatures above 70C, power rating must be derated in accordance with this curve. 1 1773269 CIS BI 06/2011 Dimensions are in millimeters Dimensions are shown for For email, phone or live chat, go to: te.com/help and inches unless otherwise reference purposes only. specified. Values in brackets Specifications subject are standard equivalents. to change. Power Ratio (%)SMD Low Ohmic - Current Sense Resistors Type RL73 Series Characteristics - Environmental Item Requirement Test Method Temperature Coefficient As spec +25/-55/+25/+125/+25C of Resistance (TCR): 0.5% Short Time Overload: RCWV*2.5 or Max. overload voltage for 5 seconds R 1% for high power rating Insulation Resistance: >1000M Apply 100VDC for 1 minute 70 2C, Max. working voltage for 1000hrs with Endurance: 1% 1.5hrs ON and 0.5hrs OFF 40 2C, 90 - 95% R.H. max. working voltage Damp Heat with Load: 0.5% for 1000hrs with 1.5hrs ON and 0.5hrs OFF Dry Heat: 0.5% at +155C for 1000hrs Bending Strength: As spec Bending amplitude 3mm for 10 seconds Solderability: 95% min. coverage 245 5C for 3 seconds Resistance to Soldering Heat: 0.5% 260 5C for 10 seconds Dielectric Withstand Voltage: By type Apply Max. overload voltage for 1 minute Thermal Shock: 0.5% -55C to +150C, 100 cycles Low Temperature Operation: 0.5% 1 hour, -65C, followed by 45 minutes of RCWV Reference Standards: MIL-STD-202, JIS-C 5201-1 Storage Temperature: 253C Humidity < 80%RH Dimensions D L W 1. Alumina Substrate 4. Edge Electrode (NiCr) 7. Resistor Layer (NiCr) t 2. Bottom Electrode (Ag) 5. Barrier Layer (Ni) 8. Overcoat (Epoxy) 3. Top Electrode (Ag-Pd) 6. External Electrode (Sn) 9. Marking C Part Number L W C D t RL73 1H (0201) 0.58 0.05 0.29 0.05 0.15 0.05 0.12 0.05 0.23 0.05 RL73 1E (0402) 1.00 0.05 0.50 0.05 0.20 0.10 0.25 0.10 0.32 0.10 RL73 1J (0603) 1.60 0.10 0.80 0.10 0.30 0.20 0.30 0.20 0.45 0.10 RL73 2A (0805) 2.00 0.15 1.25 0.15 0.40 0.25 0.30 0.20 0.55 0.10 RL73 2B (1206) 3.10 0.10 1.55 0.15 0.40 0.25 0.50 0.30 0.55 0.10 RL73 2E (1210) 3.10 0.10 2.50 0.15 0.50 0.25 0.50 0.30 0.55 0.10 RL73 2H (2010) 5.00 0.20 2.50 0.15 0.50 0.25 0.60 0.30 0.60 0.15 RL73 3A (2512) 6.35 0.20 3.10 0.15 0.55 0.25 0.60 0.30 0.60 0.10 2 1773269 CIS BI 06/2011 Dimensions are in millimeters Dimensions are shown for For email, phone or live chat, go to: te.com/help and inches unless otherwise reference purposes only. specified. Values in brackets Specifications subject are standard equivalents. to change.