SMD Low Ohmic - Current Sense Resistors Type RL73 Series Key Features n Up to 2 Watts at 70°C n Values down to R10 n 8 chip sizes n Ideal for current detection n Value marked on resistor n Sizes 0201 to 2512 n 0402, 0603, 0805, 1206, 2512 stocked in distribution n New Higher Power Version now available Applications n Audio n Communications TE Connectivity are pleased to offer this thick film chip resistor for current sensing positions. n Automotive It has a special metal glaze resistive element and a nickel barrier layer beneath the solder to prolong terminal life. Following the developments by semiconductor manufacturers in the n Low voltage power supplies production of a range of IC's for battery charge management and low voltage power n Power management supplies, the RL73 Series satisfies the demand for a low ohmic shunt resistor to act as a applications current sensor. Characteristics - Electrical - Standard Power Type TCR Power rating Resistance TDF TD TE Tape @ 70°C 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 1 1773269 CIS WR 02/2012 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. SMD Low Ohmic - Current Sense Resistors Type RL73 Series Characteristics - Electrical - High power version Type TCR Power rating Resistance TDF TD TE Tape @ 70°C Range RLP73M1E 400PPM 0.125W R051 - R10 1000 5000 -- Paper RLP73N1E 300PPM 0.125W R110 - R47 1000 5000 -- Paper RLP73K1E 200PPM 0.125W R51 - 1R0 1000 5000 -- Paper RLP73M1J 400PPM 0.125W R051 - R10 1000 5000 -- Paper RLP73N1J 300PPM 0.125W R110 - R47 1000 5000 -- Paper RLP73K1J 200PPM 0.125W R51 - 1R0 1000 5000 -- Paper RLP73M2A 400PPM 0.25W R051 - R10 1000 5000 -- Paper RLP73N2A 300PPM 0.25W R110 - R47 1000 5000 -- Paper RLP73K2A 200PPM 0.25W R51 - 1R0 1000 5000 -- Paper RLP73V2B 600PPM 0.5W R010 - R020 1000 5000 -- Paper RLP73M2B 400PPM 0.5W R022 - R047 1000 5000 -- Paper RLP73N2B 300PPM 0.5W R051 - R091 1000 5000 -- Paper RLP73K2B 200PPM 0.5W R10 - 1R0 1000 5000 -- Paper RLP73V3A 600PPM 2W R010 - R020 1000 -- 4000 Plastic RLP73M3A 400PPM 2W R022 - R047 1000 -- 4000 Plastic RLP73N3A 300PPM 2W R051 - R091 1000 -- 4000 Plastic RLP73K3A 200PPM 2W R10 - 1R0 1000 -- 4000 Plastic Operating Voltage=√(P*R) ; Overload Voltage=2.5*√(P*R) ; Operating Current=√(P/R) Maximum operating temperature -55°C to +155°C 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 70°C, power rating must be derated in accordance with this curve. Characteristics - Environmental Item Requirement Test Method Temperature Coefficient As Specification -55°C ~ +125°C, 25°C is the reference temperature of Resistance (TCR): ±(0.5%+0.05Ω) Short Time Overload: RCWV*2.5 or Max. overload voltage for 5 seconds for higher Power rating: ±(1.0% + 0.05Ω) Insulation Resistance: ≥10G Max. overload voltage for 1 minute 70 ±2°C, Max. working voltage for 1000 hrs with Endurance: ±(1.0%+0.05Ω) 1.5 hrs “ON” and 0.5 hrs “OFF” 40 ±2°C, 90-95% R.H. max. working voltage Damp Heat with Load: ±(0.5%+0.05Ω) for 1000 hrs with 1.5 hrs “ON” and 0.5 hrs “OFF” Dry Heat: ±(0.5%+0.05Ω) at +155°C for 1000 hrs Bending Strength: Bending once for 5 seconds 2010, 2512 sizes: 2mm As Spec. Other sizes: 3mm Solderability: 95% min. coverage 245 ±5°C for 3 seconds Resistance to Soldering Heat: ±(0.5%+0.05Ω) 260 ±5°C for 10 seconds Voltage Proof: No breakdown or flashover 1.42 times RCWV (RMS) for 1 minute Individual leaching area ≤5% Leaching: 260±5°C for 30 seconds Total leaching area ≤10% Thermal Shock: ±(0.5%+0.05Ω) -55°C to +155°C, 5 cycles Reference Standards: IEC 60115-1, 60068-2-58; JIS-C 5201-1 Storage Temperature: 25±3°C; Humidity < 80%RH 2 1773269 CIS WR 02/2012 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 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 LW 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 RL(P)73 1E (0402) 1.00 ±0.05 0.50 ±0.05 0.20 ±0.10 0.25 ±0.10 0.32 ±0.10 RL(P)73 1J (0603) 1.60 ±0.10 0.80 ±0.10 0.30 ±0.20 0.30 ±0.20 0.45 ±0.10 RL(P)73 2A (0805) 2.00 ±0.15 1.25 ±0.15 0.40 ±0.25 0.30 ±0.20 0.55 ±0.10 RL(P)73 2B (1206) 3.10 ±0.10 1.55 ±0.15 0.40 ±0.25 0.50 ±0.30 0.55 ±0.10 RL(P)73 2E (1210) 3.10 ±0.10 2.50 ±0.15 0.50 ±0.25 0.50 ±0.30 0.55 ±0.10 RL(P)73 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 RLP73 3A (2512)