NT IA PL M Features Applications ■ High power density ■ Telecom ports designed for Metallic Ended S CO ■ Can withstand ITU-T K.20, K.21 and K.45 *R oH basic test requirements ■ RoHS compliant* Line Test (MELT) functionality ■ ADSL and VDSL2 telecom ports ■ Telecom line test equipment CRM2512-FT Series Power Resistor Electrical Characteristics General Information Characteristic The Model CRM2512-FT is a power resistor rated to 2 watts continuous power in a small 2512 size package. It can withstand ITU-T K.20, K.21 and K.45 basic test requirements and is aimed at telecom applications. CRM2512-FT Power 2W Resistance 10K to 1M Ohms (E24) Working Voltage 300 V Short Time Overload Voltage 600 V Operating Temperature Range Characteristic Data -55 °C to +155 °C TCR ±100 PPM/°C Surge Characteristics (Per ITU-T K.20, K.21 and K.45 Test Requirements) Wave Shape Overvoltage Test 10/700 1.5 KV ±5 pulses 600 Vrms, 600 ohms, 0.2 seconds Recommended Solder Pad Layout L B DIMENSIONS: A MM (INCHES) ΔR Max. Load Life (1000 hours) <1% Short Term Overload <1% Thermal Shock < 0.5 % 600 Vrms, 600 Ohms, 0.2 Seconds, 5 Applications (R>20K) <1% 600 Vrms, 600 Ohms, 0.1 Seconds, 5 Applications (R<20K) <1% 10/700 1.5 kV, ±5 Applications <1% Product Dimensions Cu TRACE 6.3 ± 0.20 (0.248 ± 0.008) Model CRM2512-FT A B L 3.7 (0.146) 2.45 (0.096) 2.7 (0.106) 3.1 ± 0.20 (0.122 ± 0.008) 0.6 ± 0.20 (0.024 ± 0.008) Soldering Profile Peak 260 +5/-0 °C 230 °C or higher 200 180 °C 150 1.8 ± 0.20 (0.070 ± 0.008) Pre-heating Zone Derating Curve 150 °C 90 ± 30 seconds 100 30 ± 10 seconds Soldering Zone 50 Heating Time Power Ratio (%) Temperature (°C) 250 0.6 ± 0.20 (0.024 ± 0.008) 100 -55 70 155 Ambient Temperature (°C) *RoHS Directive 2002/95/EC Jan 27 2003 including Annex. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications CRM2512-FT Series Power Resistor Pulse Load Characteristics How to Order Model (CRM = High Power Resistor) Size 2512 = 2512 Size Resistance Tolerance • F = ±1 % Function • T = Special Resistor Layout for Telecom Applications Resistance Value First three digits are significant, fourth digit represents number of zeros to follow Packaging • E = 4000 pieces on 180 mm (7 inch) reel Terminations • LF = Tin-plated (RoHS Compliant) 1000 PEAK POWER (W) CRM 2512 - F T - 1202 E LF 100 10 1 0.0001 0.001 0.01 1.0 SURGE DURATION (S) Packaging Dimensions (Conforms to EIA RS-481A) PAPER TAPE TOP TAPE 1.5 +0.1/-0 DIA. (0.059 +0.004/-0) 1.5 (0.059) DIA. MIN. 1.75 ± 0.1 (0.069 ± 0.004) 5.5 ± 0.05 (0.217 ± 0.002) 13.0 ± 1.0 (0.512 ± 0.039) DIA. 180 +0/-3 (7.09 +0/-0.118) DIA. 12.0 ± 0.2 (0.472 ± 0.008) RESISTOR 3.60 ± 0.20 (0.142 ± 0.008) 0.85 ± 0.15 (0.033 ± 0.006) 4.0 ± 0.1 (0.157 ± 0.004) 2.0 ± 0.05 (0.079 ± 0.002) USER DIRECTION OF FEED DIMENSIONS: MM (INCHES) 60.0 (2.362) MIN. DIA. 6.9 ± 0.2 (0.272 ± 0.008) 4.0 ± 0.05 (0.157 ± 0.002) 15.4 ± 2.0 (0.606 ± 0.079) 13.0 ± 1.0 (0.512 ± 0.039) REV. 05/22/09 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications