MODEL 627 T CCITT V.35 Termination Surface Mount Resistor Networks ELECTRICAL Standard Resistance Tolerance, at 25C Operating Temperature Range Temperature Coefficient of Resistance Temperature Coefficient of Resistance Tracking Voltage Coefficient of Resistance Maximum Operating Voltage Insulation Resistance 2% -55C to +125C 250ppm/C 50ppm/C 100ppm/C 25Vdc 10,000 Megohms ENVIRONMENTAL Thermal Shock plus Power Conditioning Short Time Overload Moisture Resistance Mechanical Shock Vibration Shock Low Temperature Operation High Temperature Exposure Load Life, 2,000 Hours (33 Ohms = 0.5 Ohm) Resistance to Solder Heat (Total immersion in solder at 280C for 10 sec.) Dielectric Withstanding Voltage Temperature Exposure, Maximum Marking Permanency Lead Solderability Flammability Storage Temperature Range R 0.70% R 0.25% R 0.50% R 0.25% R 0.25% R 0.25% R 0.50% R 0.50% R 0.25% 200V for 1 minute 215C for 3 minutes MIL-STD-202, Method 215 MIL-STD-202, Method 208 UL-94V-O Rated -55C to +150C Specifications subject to change without notice. 4-123 Model 627 T 4 MECHANICAL Lead Material Lead Configuration Lead Coplanarity Substrate Material Resistor Material Body Material Copper Alloy, 60/40 Tin-Lead (Dipped) Gull Wing 0.002 in. (0.057mm) Alumina Cermet Epoxy OUTLINE DIMENSIONS (Inch/mm) .095 Max. 2.41 .395 Max. 10.03 .310 7.87 Max. .008 Typ. 0.20 .028 Typ. 0.71 .008 0.20 .220 .005 5.59 0.13 .016 Typ. 0.41 .050 Typ. 1.27 .015 Typ. 0.38 Note: Maximum allowable mold excursion = 0.006" SCHEMATIC 14 1 50 50 125 2 13 125 50 50 12 3 50 50 125 4 11 125 50 50 50 5 10 50 125 50 9 6 125 50 8 7 4-124 Model 627 T TYPICAL APPLICATION V.35 Balanced Interface 1F VCC TX1 IN TX2 IN TX3 IN RX2 OUT RX1 OUT (5V) S1 (0V) S2 4 3 3 2 1F DCE 1 27 DTE 1F 1F 27 1F 4 3 1F 2 1 3 26 15 25 16 24 18 23 17 22 20 21 19 18 24 17 23 16 26 9 15 25 9 10 5 5 10 6 7 13 12 11 8 7 12 6 13 14 VCC RX1 OUT RX2 OUT RX3 OUT TX2 IN TX1 IN S1 (0V) S2 (5V) OE Linear Techology Model LTC 1345 Linear Techology Model LTC 1345 BI Model 627T provides 6 of these termination networks in a single package 50 125 50 POWER DISSIPATION, WATTS AT 70C POWER DERATING CURVE Percent of Rated Power 100 80 60 40 20 0 Model 627 T -0 70 Package 1.28 Per Resistor 0.25 125 150 Degrees C 4-125 Model 627 T 4 TYPICAL PART MARKING Manufacturer's Trademark Part Number 627T50/125 Date Code Part Marking UK MADE Part Marking 7T500 Lead #1 Indicator PACKAGING Standard: Tape & Reel Conforms to requirements of EIA-481. All units oriented with lead #1 to the left of direction of feed. Tape: Reel: Option: Width Pocket Pitch Diameter Capacity = = = = = 24mm Embossed Antistatic Plastic 12mm 13" (330mm) Maximum 2,000 Units Magazines Conforms to EIA and JEDEC standards. All units oriented with lead #1 to the same side. Magazine: Capacity = 50 Units ORDERING INFORMATION 62 7 T 500 / 1250 TR4 Model Series Standard Tape & Reel Packaging: (No code used for Magazines.) No. of Leads: 7 = 14 leads Resistance Values Circuit Type: T = V.35 Termination 4-126 Model 627 T