SURFACE MOUNT INDUCTORS CHIP INDUCTORS LQN21A Series The LQN21A Series consists of air-core chip coils using a subminiature alumina core as a bobbin. The High Q values at high frequencies and high self-resonant frequencies make this coil perfect for use in the high frequency circuits of communications equipment. FEATURES LQN21A04 *Broad inductance range *Inductance tolerance: 0.5nH (8.2nH); 5% (10nH-470nH) LQN21A *Tight Inductance Tolerance 2% LQN21A44 *High Q *High Rated Current *Low DCR PART NUMBERING SYSTEM LQN TYPE LQN: Non-epoxy coated 21 SIZE 21: 2.0 x 1.5mm (0805) A 3N3 CORE MATERIAL A: Air Core D INDUCTANCE CODE 3N3: 3.3nH 04 M00 TOLERANCE D: 0.5nH J: 5% G: 2% ELECTRODE MATERIAL 04/44: Nickel & Solder UNMARKED SPECIFICATIONS Inductance Dimensions: mm LQN21A04 Part Number LQN21A3N3D04 LQN21A6N8D04 LQN21A8N2D04 LQN21A10NJ04 LQN21A12NJ04 LQN21A15NJ04 0805 LQN21A18NJ04 1.5 0.2 1.5 0.2 LQN21A22NJ04 LQN21A27NJ04 LQN21A33NJ04 LQN21A39NJ04 1.78 max. LQN21A47NJ04 LQN21A56NJ04 2.0 0.2 1.5 0.2 LQN21A68NJ04 LQN21A82NJ04 LQN21AR10J04 LQN21AR12J04 0.5 0.5 min. 0.5 min. min. LQN21AR15J04 LQN21AR18J04 LQN21AR22J04 LQN21AR27K04 LQN21AR33K04 LQN21AR39K04 LQN21AR47K04 Nominal Value (nH) Tolerance 3.3 6.8 8.2 10 12 15 18 22 27 33 39 47 56 68 82 100 120 150 180 220 270 330 390 470 Test Frequency (MHz) 0.5nH Q 1 Minimum Value Peak Test Value Q Frequency (Typ.) Value (MHz) 10 70 20 80 65 30 250 70 100 5% 65 80 65 70 65 60 70 50 45 40 200 150 30 35 100 15 25.2 50 10% 10 2 SelfDC Allowable Operating Resistance resonant Current Temp. Frequency (Ohms max.) (mA) Range (MHz min.) 0.05 0.11 0.12 0.03 0.11 0.12 0.10 0.09 0.17 0.15 0.09 0.23 0.26 0.23 0.42 0.38 0.40 0.47 0.71 0.70 2.00 2.20 2.50 2.80 6000 5400 3900 3300 3200 2700 2600 2100 2300 1900 1700 1600 1500 1200 1100 900 750 350 700 500 550 500 400 350 910 680 630 1320 680 630 690 720 540 570 730 450 430 460 320 350 320 390 250 240 190 180 170 160 0.15 1900 570 0.09 0.23 0.26 0.23 0.42 0.55 0.40 0.68 0.71 0.02 1700 1600 1500 1200 1100 900 750 350 700 500 730 450 430 460 320 270 320 260 250 240 -25C ~ +85C Tight Tolerance LQN21A33NG04 33 LQN21A33NG04 39 47 56 68 82 100 120 150 180 220 LQN21A33NG04 LQN21A33NG04 LQN21A33NG04 LQN21A33NG04 LQN21AR10G04 LQN21AR12G04 LQN21AR15G04 LQN21AR18G04 LQN21AR22G04 10 70 20 80 2% 100 65 30 70 65 80 250 -25C ~ +85C 1: Measured with LCR meter YHP4191A, measuring tap 16193A. 2: Measured with Network Analyzer HP8753C. Available as standard through authorized Murata Electronics Distributors. 218 CG01-J SURFACE MOUNT INDUCTORS CHIP INDUCTORS LQN21A Series SPECIFICATIONS Inductance SelfDC resonant Allowable Operating Test Nominal Test 800 1.5 Nominal Resistance Current Temp. Tolerance Frequency Value Frequency MHz GHz (Ohms max.) Frequency (mA) Range Value (nH) (min.) (MHz) (Typ.) (Typ.) (MHz) (MHz min.) Dimensions: mm Part Number LQN21A44 LQN21A2N7D44 2.7 3.1 3.3 5.6 6.8 8.6 10 12 15 18.8 21 27 LQN21A3N1D44 1.5 0.2 LQN21A3N3D44 1.5 0.2 LQN21A5N6D44 1.78 max. LQN21A6N8D44 LQN21A8N6D44 2.0 0.2 LQN21A10NJ44 1.5 0.2 LQN21A12NK44 LQN21A15NK44 LQN21A18NK44 0.5 0.5 min. 0.5 min. min. Q LQN21A21NK44 LQN21A27NK44 120 20 85 110 0.5nH 95 35 100 250 5% 10% 40 115 100 85 100 105 95 6000 0.02 90 75 65 45 5400 3900 3300 3200 3100 2600 2200 1800 0.03 0.04 0.05 0.06 1900 1800 1700 1500 1400 1300 1320 1100 -25C ~ +85C 1000 950 900 1: Measured with LCR meter YHP4191A, measuring tap 16193A. 2: Measured with Network Analyzer HP8753C. Available as standard through authorized Murata Electronics Distributors. TYPICAL ELECTRICAL CHARACTERISTICS Q-FREQUENCY CHARACTERISTICS LQN21A (Tight Inductance Tolerance) Q-FREQUENCY CHARACTERISTICS LQN21A04 100 100 80 80 60 60 40 Q Q 330nH 470nH 40 20 20 10nH 220nH33nH 0 1 5 50 100 10 500 1000 0 3.3nH 220nH 33nH 10nH 1 10 5000 10000 100 Frequency (MHz) 1000 10000 Frequency (MHz) INDUCTANCE-FREQUENCY CHARACTERISTICS LQN21A44 LQN21A44 150 100 3.3nH 27nH 120 50 Inductance (nH) 90 Q 12nH 60 30 40 30 20 27nH 50 100 500 1000 Frequency (MHz) 5000 10000 0 10 3.3nH 50 100 500 1000 5000 10000 Frequency (MHz) CG01-J 219 SURFACE MOUNT INDUCTORS 0 10 12nH 10