Features ■ ■ ■ ■ Applications Thick film technology Bourns patented thermal fuse Fail safe Protection to BELLCORE GR-1089-CORE ■ ■ ■ ■ ■ ■ Analog Line Cards CPE (Customer Premises Equipment) DDS (Digital Data Systems) DLC (Digital Loop Carriers) T1/T3 Transmission Lines ISDN L11B Line Feed Resistors w/Thermal Fuse & Overvoltage Protectors Product Characteristics Resistor Tolerance 20 ohms to 100 ohms .....................................................±1 % 5.6 ohms .........................................................................±5 % Ratio Tolerance 20 ohms to 100 ohms ..................................................±0.5 % 5.6 ohms ......................................................................±2.5 % Operating Temperature.......................................-40 °C to +85 °C Environmental Characteristics TESTS PER MIL-STD-202 Humidity ..........................................................................103B Solderability.....................................................................208D Thermal Shock ................................................................107B Resistance to Solvents ......................................................215 Resistance to Solder Heat ..............................................210D Flammability ...................................................................UL 94V-0 IEC 695-2-2 Functional Characteristics Bellcore GR-1089-CORE ITU-T K.20 Lightning Surge ................................................................1 KV Power Induction........................................................600 Vrms Power Contact..........................................................230 Vrms UL 497A FCC Part 68.302 Rules (d) and (e) Physical Characteristics Body Style ..........................................................Open Frame SIP Body Material...........................................................96% Alumina Lead Frame Material..................................Copper, solder coated Standard Parts Available Off the Shelf ..................................................5.6, 10, 20, 30, 50, 100 ohms Circuit Schematic OVERVOLTAGE PROTECTOR F1 R1A R2A R1B R2B 1 5 7 8 15 11 Product Dimensions MAX. SEATED HEIGHT 12.19 (0.480) 53.59 MAX. (2.110) 0.84 REF. (.033) 8.89 (.350) 10.16 (.400) TYP. 2 PLCS. 2.54 (.100) TYP. 2 PLCS. 5.08 (.200) TYP. 2 PLCS. 3.175 + 0.64/-0.13 (.125 + .025/-.005) 0.51 ±0.25 THICK (.020 x .010) 0.81 DIA. HOLE (.032) 3.81 MAX. THICKNESS (.150) DIMENSIONS: How To Order 9 F2 MM (INCHES) L11B 100AA Model (L11B = LFR w/Thermal Fuse and Overvoltage Protectors*) Resistor Tolerance • 5R6AA = 5.6 ohms • 010AA = 10 ohms • 020AA = 20 ohms • 030AA = 30 ohms • 050AA = 50 ohms • 100AA = 100 ohms Custom values available; contact factory. *Specify Overvoltage Protection: • Specify peak pulse current rating • Specify minimum turn on voltage • Provide schematic showing desired configuration REV. A 06/05 Specifications are subject to change without notice. Customers should verify device performance in their specific applications. Circuit Protection Division Asia-Pacific: Tel: +886-2 2562-4117 Fax: +886-2 2562-4116 Europe: Tel: +41-41 768 5555 Fax: +41-41 768 5510 The Americas: Tel: +1-951 781-5500 Fax: +1-951 781-5700 www.bourns.com