LQW18AN17NJ80D

Spec No.: JELF243A_0102J-01 P1/14 CHIP COILS (CHIP INDUCTORS) LQW18AN□□□□80□ REFERENCE SPECIFICATION 1. Scope This reference specification applies to chip coils (chip inductors) LQW18AN_80 series for general electronic equipment. 2. Part Numbering (Ex.) LQ W 18 A N 2N2 C 8 0 D Product Structure Dimension ID (L × W) Application Category Inductance Tolerance Performance Electrode Packaging and specification D: taping characteristic *B: bulk *B: Bulk packing is also available (taping condition: however, products without reels are put in plastic bags). 3. Part Number and Rating Operating temperature range -55°C to +125°C Storage temperature range -55°C to +125°C Inductance Customer Part number Tolerance Q (Min.) DC resistance (Ω max.) Self-resonant frequency (MHz min.) Rated current (mA)*1 2.2 C: ±0.2 nH 24 0.018 15000 3200 2.4 C: ±0.2 nH 18 0.026 15000 2400 LQW18AN3N0C80D 3.0 C: ±0.2 nH 13 0.17 15000 670 LQW18AN3N9B80D 3.9 B: ±0.1 nH 30 0.028 10000 2200 Murata Part number Nominal value (nH) LQW18AN2N2C80D LQW18AN2N4C80D LQW18AN3N9C80D 3.9 C: ±0.2 nH 30 0.028 10000 2200 LQW18AN3N9G80D 3.9 G: ±2% 30 0.028 10000 2200 LQW18AN4N1B80D 4.1 B: ±0.1 nH 30 0.028 10000 2200 LQW18AN4N1C80D 4.1 C: ±0.2 nH 30 0.028 10000 2200 LQW18AN4N1G80D 4.1 G: ±2% 30 0.028 10000 2200 LQW18AN4N2B80D 4.2 B: ±0.1 nH 30 0.028 10000 2200 LQW18AN4N2C80D 4.2 C: ±0.2 nH 30 0.028 10000 2200 LQW18AN4N2G80D 4.2 G: ±2% 30 0.028 10000 2200 LQW18AN4N3B80D 4.3 B: ±0.1 nH 35 0.036 11600 2100 LQW18AN4N3C80D 4.3 C: ±0.2 nH 35 0.036 11600 2100 LQW18AN4N3G80D 4.3 G: ±2% 35 0.036 11600 2100 LQW18AN4N7B80D 4.7 B: ±0.1 nH 25 0.054 10400 1500 LQW18AN4N7C80D 4.7 C: ±0.2 nH 25 0.054 10400 1500 LQW18AN4N7G80D 4.7 G: ±2% 25 0.054 10400 1500 LQW18AN4N9B80D 4.9 B: ±0.1 nH 23 0.081 7300 1200 LQW18AN4N9C80D 4.9 C: ±0.2 nH 23 0.081 7300 1200 LQW18AN4N9G80D 4.9 G: ±2% 23 0.081 7300 1200 LQW18AN5N6C80D 5.6 C: ±0.2 nH 38 0.040 6650 1900 LQW18AN5N6G80D 5.6 G: ±2% 38 0.040 6650 1900 LQW18AN6N0C80D 6 C: ±0.2 nH 40 0.040 6650 1900 LQW18AN6N0G80D 6 G: ±2% 40 0.040 6650 1900 LQW18AN6N5C80D 6.5 C: ±0.2 nH 40 0.040 6650 1900 LQW18AN6N5G80D 6.5 G: ±2% 40 0.040 6650 1900 LQW18AN6N8C80D 6.8 C: ±0.2 nH 40 0.040 6650 1900 LQW18AN6N8G80D 6.8 G: ±2% 40 0.040 6650 1900 LQW18AN7N2C80D 7.2 C: ±0.2 nH 38 0.040 6650 1900 MURATA MFG CO., LTD Spec No.: JELF243A_0102J-01 P2/14 Inductance Customer Part number Tolerance Q (Min.) DC resistance (Ω max.) Self-resonant frequency (MHz min.) Rated current (mA)*1 7.2 G: ±2% 38 0.040 6650 1900 7.5 C: ±0.2 nH 35 0.048 7000 1500 Murata Part number Nominal value (nH) LQW18AN7N2G80D LQW18AN7N5C80D LQW18AN7N5G80D 7.5 G: ±2% 35 0.048 7000 1500 LQW18AN8N2C80D 8.2 C: ±0.2 nH 38 0.052 4750 1600 LQW18AN8N2G80D 8.2 G: ±2% 38 0.052 4750 1600 LQW18AN8N4C80D 8.4 C: ±0.2 nH 38 0.052 4750 1600 LQW18AN8N4G80D 8.4 G: ±2% 38 0.052 4750 1600 LQW18AN8N7C80D 8.7 C: ±0.2 nH 38 0.052 4750 1600 LQW18AN8N7G80D 8.7 G: ±2% 38 0.052 4750 1600 LQW18AN9N1C80D 9.1 C: ±0.2 nH 38 0.052 4750 1600 LQW18AN9N1G80D 9.1 G: ±2% 38 0.052 4750 1600 LQW18AN9N5C80D 9.5 C: ±0.2 nH 38 0.052 4750 1600 LQW18AN9N5G80D 9.5 G: ±2% 38 0.052 4750 1600 LQW18AN9N9C80D 9.9 C: ±0.2 nH 38 0.052 4750 1600 LQW18AN9N9G80D 9.9 G: ±2% 38 0.052 4750 1600 LQW18AN10NG80D 10 G: ±2% 38 0.052 4750 1600 LQW18AN10NJ80D 10 J: ±5% 38 0.052 4750 1600 LQW18AN11NG80D 11 G: ±2% 40 0.052 4750 1600 LQW18AN11NJ80D 11 J: ±5% 40 0.052 4750 1600 LQW18AN12NG80D 12 G: ±2% 37 0.064 5000 1500 LQW18AN12NJ80D 12 J: ±5% 37 0.064 5000 1500 LQW18AN13NG80D 13 G: ±2% 37 0.064 5000 1500 LQW18AN13NJ80D 13 J: ±5% 37 0.064 5000 1500 LQW18AN15NG80D 15 G: ±2% 38 0.075 4600 1400 LQW18AN15NJ80D 15 J: ±5% 38 0.075 4600 1400 LQW18AN16NG80D 16 G: ±2% 40 0.075 4600 1400 LQW18AN16NJ80D 16 J: ±5% 40 0.075 4600 1400 LQW18AN17NG80D 17 G: ±2% 40 0.075 4600 1400 LQW18AN17NJ80D 17 J: ±5% 40 0.075 4600 1400 LQW18AN18NG80D 18 G: ±2% 40 0.075 4600 1400 LQW18AN18NJ80D 18 J: ±5% 40 0.075 4600 1400 LQW18AN19NG80D 19 G: ±2% 40 0.075 4600 1400 LQW18AN19NJ80D 19 J: ±5% 40 0.075 4600 1400 LQW18AN22NG80D 22 G: ±2% 40 0.086 3450 1300 LQW18AN22NJ80D 22 J: ±5% 40 0.086 3450 1300 LQW18AN23NG80D 23 G: ±2% 40 0.086 3450 1300 LQW18AN23NJ80D 23 J: ±5% 40 0.086 3450 1300 LQW18AN24NG80D 24 G: ±2% 40 0.086 3450 1300 LQW18AN24NJ80D 24 J: ±5% 40 0.086 3450 1300 LQW18AN25NG80D 25 G: ±2% 40 0.098 3600 1200 LQW18AN25NJ80D 25 J: ±5% 40 0.098 3600 1200 LQW18AN27NG80D 27 G: ±2% 40 0.098 3600 1200 LQW18AN27NJ80D 27 J: ±5% 40 0.098 3600 1200 LQW18AN28NG80D 28 G: ±2% 40 0.098 3600 1200 LQW18AN28NJ80D 28 J: ±5% 40 0.098 3600 1200 LQW18AN30NG80D 30 G: ±2% 40 0.12 2880 1100 MURATA MFG CO., LTD Spec No.: JELF243A_0102J-01 P3/14 Inductance Customer Part number Tolerance Q (Min.) DC resistance (Ω max.) Self-resonant frequency (MHz min.) Rated current (mA)*1 30 J: ±5% 40 0.12 2880 1100 LQW18AN31NG80D 31 G: ±2% 40 0.11 3150 1100 Murata Part number Nominal value (nH) LQW18AN30NJ80D LQW18AN31NJ80D 31 J: ±5% 40 0.11 3150 1100 LQW18AN33NG80D 33 G: ±2% 40 0.11 3150 1100 LQW18AN33NJ80D 33 J: ±5% 40 0.11 3150 1100 LQW18AN34NG80D 34 G: ±2% 40 0.15 3000 1050 LQW18AN34NJ80D 34 J: ±5% 40 0.15 3000 1050 LQW18AN36NG80D 36 G: ±2% 37 0.20 3000 910 LQW18AN36NJ80D 36 J: ±5% 37 0.20 3000 910 LQW18AN37NG80D 37 G: ±2% 37 0.20 3000 910 LQW18AN37NJ80D 37 J: ±5% 37 0.20 3000 910 LQW18AN39NG80D 39 G: ±2% 40 0.16 3280 1000 LQW18AN39NJ80D 39 J: ±5% 40 0.16 3280 1000 LQW18AN41NG80D 41 G: ±2% 40 0.16 3280 1000 LQW18AN41NJ80D 41 J: ±5% 40 0.16 3280 1000 LQW18AN43NG80D 43 G: ±2% 40 0.21 2780 840 LQW18AN43NJ80D 43 J: ±5% 40 0.21 2780 840 LQW18AN44NG80D 44 G: ±2% 40 0.21 2780 840 LQW18AN44NJ80D 44 J: ±5% 40 0.21 2780 840 LQW18AN47NG80D 47 G: ±2% 32 0.23 2700 830 LQW18AN47NJ80D 47 J: ±5% 32 0.23 2700 830 LQW18AN48NG80D 48 G: ±2% 32 0.23 2700 830 LQW18AN48NJ80D 48 J: ±5% 32 0.23 2700 830 LQW18AN51NG80D 51 G: ±2% 32 0.23 2700 830 LQW18AN51NJ80D 51 J: ±5% 32 0.23 2700 830 LQW18AN52NG80D 52 G: ±2% 35 0.27 2750 750 LQW18AN52NJ80D 52 J: ±5% 35 0.27 2750 750 LQW18AN56NG80D 56 G: ±2% 38 0.26 2600 770 LQW18AN56NJ80D 56 J: ±5% 38 0.26 2600 770 LQW18AN58NG80D 58 G: ±2% 35 0.30 2400 700 LQW18AN58NJ80D 58 J: ±5% 35 0.30 2400 700 LQW18AN68NG80D 68 G: ±2% 37 0.38 2380 630 LQW18AN68NJ80D 68 J: ±5% 37 0.38 2380 630 LQW18AN69NG80D 69 G: ±2% 37 0.38 2380 630 LQW18AN69NJ80D 69 J: ±5% 37 0.38 2380 630 LQW18AN72NG80D 72 G: ±2% 34 0.47 2330 560 LQW18AN72NJ80D 72 J: ±5% 34 0.47 2330 560 LQW18AN73NG80D 73 G: ±2% 28 0.41 2280 590 LQW18AN73NJ80D 73 J: ±5% 28 0.41 2280 590 LQW18AN75NG80D 75 G: ±2% 28 0.41 2280 590 LQW18AN75NJ80D 75 J: ±5% 28 0.41 2280 590 LQW18AN78NG80D 78 G: ±2% 28 0.41 2280 590 LQW18AN78NJ80D 78 J: ±5% 28 0.41 2280 590 LQW18AN82NG80D 82 G: ±2% 34 0.5 2230 550 LQW18AN82NJ80D 82 J: ±5% 34 0.5 2230 550 LQW18AN83NG80D 83 G: ±2% 34 0.5 2230 550 MURATA MFG CO., LTD Spec No.: JELF243A_0102J-01 P4/14 Inductance Customer Part number Tolerance Q (Min.) DC resistance (Ω max.) Self-resonant frequency (MHz min.) Rated current (mA)*1 83 J: ±5% 34 0.5 2230 550 LQW18AN91NG80D 91 G: ±2% 33 0.54 1900 520 LQW18AN91NJ80D 91 J: ±5% 33 0.54 1900 520 LQW18AN94NG80D 94 G: ±2% 34 0.63 1750 490 Murata Part number Nominal value (nH) LQW18AN83NJ80D LQW18AN94NJ80D 94 J: ±5% 34 0.63 1750 490 LQW18ANR10G80D 100 G: ±2% 34 0.63 1750 490 LQW18ANR10J80D 100 J: ±5% 34 0.63 1750 490 LQW18ANR11G80D 110 G: ±2% 32 0.7 1730 450 LQW18ANR11J80D 110 J: ±5% 32 0.7 1730 450 LQW18ANR12G80D 120 G: ±2% 32 0.72 1650 450 LQW18ANR12J80D 120 J: ±5% 32 0.72 1650 450 LQW18ANR15G80D 150 G: ±2% 28 0.87 1580 420 LQW18ANR15J80D 150 J: ±5% 28 0.87 1580 420 LQW18ANR18G80D 180 G: ±2% 25 1.65 1380 310 LQW18ANR18J80D 180 J: ±5% 25 1.65 1380 310 LQW18ANR20G80D 200 G: ±2% 25 1.74 1350 290 LQW18ANR20J80D 200 J: ±5% 25 1.74 1350 290 LQW18ANR21G80D 210 G: ±2% 27 1.98 1330 280 LQW18ANR21J80D 210 J: ±5% 27 1.98 1330 280 LQW18ANR22G80D 220 G: ±2% 25 2.08 1330 280 LQW18ANR22J80D 220 J: ±5% 25 2.08 1330 280 LQW18ANR25G80D 250 G: ±2% 24 2.28 1330 250 LQW18ANR25J80D 250 J: ±5% 24 2.28 1330 250 LQW18ANR27G80D 270 G: ±2% 24 2.42 1250 260 LQW18ANR27J80D 270 J: ±5% 24 2.42 1250 260 LQW18ANR30G80D 300 G: ±2% 25 3.12 1200 220 LQW18ANR30J80D 300 J: ±5% 25 3.12 1200 220 LQW18ANR33G80D 330 G: ±2% 25 3.84 1100 190 LQW18ANR33J80D 330 J: ±5% 25 3.84 1100 190 LQW18ANR36G80D 360 G: ±2% 25 3.98 1050 190 LQW18ANR36J80D 360 J: ±5% 25 3.98 1050 190 LQW18ANR39G80D 390 G: ±2% 25 4.23 1100 190 LQW18ANR39J80D 390 J: ±5% 25 4.23 1100 190 *1 As shown in the diagram below, derating is applied to the rated current based on the operating temperature. MURATA MFG CO., LTD Spec No.: JELF243A_0102J-01 P5/14 4. Testing Conditions Unless otherwise specified Temperature: ordinary temperature (15°C to 35°C) Humidity: ordinary humidity [25% to 85% (RH)] In case of doubt Temperature: 20°C±2°C Humidity: 60% to 70% (RH) Atmospheric pressure: 86 kPa to 106 kPa 5. Appearance and Dimensions Unit mass (typical value): 0.0034 g 6. Marking No marking. MURATA MFG CO., LTD Spec No.: JELF243A_0102J-01 P6/14 7. Electrical Performance No. Item 7.1 Inductance Specification Meet chapter 3 ratings. Test method Measuring equipment: Keysight E4991A or the equivalent Measuring frequency: Inductance 100 MHz Q 250 MHz 2.2 nH to 44 nH 200 MHz 47 nH to 69 nH 150 MHz 72 nH to 150 nH 7.2 Q 100 MHz 180 nH to 390 nH Measuring conditions: Measurement signal level: Approx. 0 dBm Measurement terminal distance: 1.0 mm Electrical length: 10.0 mm Measuring fixture: Keysight 16197A Position the chip coil under test as shown in the measuring example below and connect it to the electrode by applying weight. Measurement example: Meet chapter 3 ratings. Measuring method: see "Electrical performance: Measuring method for inductance/Q" in the chapter "16. Appendix". 7.3 DC resistance Meet chapter 3 ratings. Measuring equipment: digital multimeter 7.4 Self-resonant frequency Meet chapter 3 ratings. Measuring equipment: Keysight N5230A or the equivalent 7.5 Rated current Product temperature rise: 40°C max. Apply the rated current specified in chapter 3. MURATA MFG CO., LTD Spec No.: JELF243A_0102J-01 P7/14 8. Mechanical Performance No. 8.1 Item Shear test Specification Test method No significant mechanical damage or no Test substrate: glass-epoxy substrate Force application direction: sign of electrode peeling off shall be observed. Applying force: 5 N Holding time: 5 s±1 s 8.2 Bending test No significant mechanical damage or no Test substrate: glass-epoxy substrate (100 mm × 40 sign of electrode peeling off shall be mm × 1.6 mm) observed. Pressurizing speed: 1 mm/s Deflection: 2 mm Holding time: 30 s 8.3 Vibration Appearance shall have no significant mechanical damage. 8.4 Solderability 90% or more of the outer electrode shall Flux: immersed in ethanol solution [including an be covered with new solder seamlessly. activator with a chlorine conversion value of 0.06(wt)%] with a rosin content of 25(wt)% for 5 s to 10 s. Solder: Sn-3.0Ag-0.5Cu solder Pre-heating: 150°C±10°C/60 s to 90 s Solder temperature: 240°C±5°C Immersion time: 3 s±1 s 8.5 Resistance to soldering heat Appearance: No significant mechanical damage shall be observed. Inductance change rate: within ±5% Oscillation frequency: 10 Hz to 55 Hz to 10 Hz, for approx. 1 min Total amplitude: 1.5 mm Test time: 3 directions perpendicular to each other, 2 h for each direction (6 h in total) Flux: immersed in ethanol solution [including an activator with a chlorine conversion value of 0.06(wt)%] with a rosin content of 25(wt)% for 5 s to 10 s. Solder: Sn-3.0Ag-0.5Cu solder Pre-heating: 150°C±10°C/60 s to 90 s Solder temperature: 270°C±5°C Immersion time: 10 s±1 s Post-treatment: left at a room condition for 24 h±2 h MURATA MFG CO., LTD Spec No.: JELF243A_0102J-01 P8/14 9. Environmental Performance The product is soldered on a substrate for test. No. Item Specification Test method 9.1 Heat resistance Appearance: No significant mechanical damage shall be observed. Inductance change rate: within ±5% Q change rate: within ±20% Temperature: 125°C±2°C Test time: 1000 h (+48 h, -0 h) Post-treatment: left at a room condition for 24 h±2 h 9.2 Cold resistance Appearance: No significant mechanical damage shall be observed. Inductance change rate: within ±5% Q change rate: within ±20% Temperature: -55°C±2°C Test time: 1000 h (+48 h, -0 h) Post-treatment: left at a room condition for 24 h±2 h 9.3 Humidity Appearance: No significant mechanical damage shall be observed. Inductance change rate: within ±5% Q change rate: within ±20% Temperature: 40°C±2°C Humidity: 90% (RH) to 95% (RH) Test time: 1000 h (+48 h, -0 h) Post-treatment: left at a room condition for 24 h±2 h 9.4 Temperature cycle Appearance: No significant mechanical damage shall be observed. Inductance change rate: within ±5% Q change rate: within ±20% Single cycle conditions: Step 1: -55°C±2°C/30 min±3 min Step 2: ordinary temperature/10 min to 15 min Step 3: +125°C±2°C/30 min±3 min Step 4: ordinary temperature/10 min to 15 min Number of testing: 10 cycles Post-treatment: left at a room condition for 24 h±2 h 10. Specification of Packaging 10.1 Appearance and dimensions of tape (8 mm width/paper tape) A 1.15±0.05 B 1.9±0.05 t 1.1 max. (in mm) 10.2 Taping specifications Packing quantity (Standard quantity) 4000 pcs/reel Packing method The products are placed in embossed cavities of a base tape and sealed by a top tape and a bottom tape. Feed hole position The feed holes on the base tape are on the right side when the top tape is pulled toward the user. Joint The base tape and the top tape are seamless. Number of missing products Number of missing products within 0.025% of the number per reel or 1 pc., whichever is greater, and are not continuous. The specified quantity per reel is kept. 10.3 Break down force of tape Break down force of top tape 5 N min. Break down force of bottom tape 5 N min. MURATA MFG CO., LTD Spec No.: JELF243A_0102J-01 P9/14 10.4 Peeling off force of top tape Speed of peeling off Peeling off force 165 to 180 degree Bottom tape 300 mm/min 0.1 N to 0.6 N (The lower limit is for typical value.) F Top tape Base tape 10.5 Dimensions of leader section, trailer section and reel A vacant section is provided in the leader (start) section and trailer (end) section of the tape for the product. The leader section is further provided with an area consisting only of the cover tape (or top tape). (See the diagram below.) 10.6 Marking for reel Customer part number, Murata part number, inspection number (*1), RoHS marking (*2), quantity, etc. *1 Expression of inspection No.: (1) Factory code  □□ ○○○○ (2) Date First digit: year/last digit of year (1) (2) (3) Second digit: month/Jan. to Sep.→1 to 9, Oct. to Dec.→O, N, D Third, Fourth digit: day (3) Serial No. *2 Expression of RoHS marking: (1) RoHS regulation conformity ROHSY () (2) Murata classification number (1) (2) 10.7 Marking on outer box (corrugated box) Customer name, purchasing order number, customer part number, Murata part number, RoHS marking (*2), quantity, etc. 10.8 Specification of outer box Label H D W Dimensions of outer box (mm) W D H 186 186 93 Standard reel quantity in outer box (reel) 5 * Above outer box size is typical. It depends on a quantity of an order. MURATA MFG CO., LTD Spec No.: JELF243A_0102J-01 11. P10/14 Caution 11.1 Restricted applications Please contact us before using our products for the applications listed below which require especially high reliability for the prevention of defects which might directly cause damage to the third party's life, body or property. (1) Aircraft equipment (2) Aerospace equipment (3) Undersea (4) Power plant control equipment equipment (5) Medical equipment (6) Transportation equipment (vehicles, (7) Traffic signal (8) Disaster/crime trains, ships, etc.) equipment prevention equipment (9) Data-processing (10) Applications of similar complexity and/or reliability equipment requirements to the applications listed in the above 11.2 Precautions on rating Avoid using in exceeded the rated temperature range, rated voltage, or rated current. Usage when the ratings are exceeded could lead to wire breakage, burning, or other serious fault. 11.3 Inrush current If an inrush current (or pulse current or rush current) that significantly exceeds the rated current is applied to the product, overheating could occur, resulting in wire breakage, burning, or other serious fault. 11.4 Corrosive gas Please refrain from use since contact with environments with corrosive gases (sulfur gas [hydrogen sulfide, sulfur dioxide, etc.], chlorine, ammonia, etc.) or oils (cutting oil, silicone oil, etc.) that have come into contact with the previously stated corrosive gas environment will result in deterioration of product quality or an open from deterioration due to corrosion of product electrode, etc. We will not bear any responsibility for use under these environments. 12. Precautions for Use This product is for use only with reflow soldering. It is designed to be mounted by soldering. If you want to use other mounting method, for example, using a conductive adhesive, please consult us beforehand. Also, if repeatedly subjected to temperature cycles or other thermal stress, due to the difference in the coefficient of thermal expansion with the mounting substrate, the solder (solder fillet part) in the mounting part may crack. The occurrence of cracks due to thermal stress is affected by the size of the land where mounted, the solder volume, and the heat dissipation of the mounting substrate. Carefully design it when a large change in ambient temperature is assumed. 12.1 Land dimensions The following diagram shows the recommended land dimensions for reflow soldering. The land dimensions are designed in consideration of electrical characteristics and mountability. Use of other land dimensions may preclude achievement of performance. In some cases, it may result in poor solderability, including positional shift. If you use other land pattern, consider it adequately. a 0.86 b 2.00 c 1.15 (in mm) 12.2 Flux and solder used Flux • Use a rosin-based flux that includes an activator with a chlorine conversion value of 0.06(wt)% to 0.1(wt)%. • Do not use a highly acidic flux with a halide content exceeding 0.2(wt)% (chlorine conversion value). • Do not use a water-soluble flux. Solder • Use Sn-3.0Ag-0.5Cu solder. • Standard thickness of solder paste: 100 μm to 150 μm If you want to use a flux other than the above, please consult our technical department. MURATA MFG CO., LTD Spec No.: JELF243A_0102J-01 P11/14 12.3 Soldering conditions (reflow) • Pre-heating should be in such a way that the temperature difference between solder and product surface is limited to 150°C max. Cooling into solvent after soldering also should be in such a way that the temperature difference is limited to 100°C max. Insufficient pre-heating may cause cracks on the product, resulting in the deterioration of product quality. • Standard soldering profile and the limit soldering profile is as follows. The excessive limit soldering conditions may cause leaching of the electrode and/or resulting in the deterioration of product quality. Temp. (℃) 260℃ 245℃±3℃ 220℃ 230℃ Limit Profile 180 150 Standard Profile 30s～60s 60s max. 90s±30s Time. (s) Standard profile Limit profile Pre-heating 150°C to 180°C/90 s±30 s 150°C to 180°C/90 s±30 s Heating Above 220°C/30 s to 60 s Above 230°C/60 s max. 245°C±3°C 260°C/10 s 2 times 2 times Peak temperature Number of reflow cycles 12.4 Reworking with soldering iron The following requirements must be met to rework a soldered product using a soldering iron. Item Requirement Pre-heating 150°C/approx. 1 min Tip temperature of soldering iron 350°C max. Power consumption of soldering iron 80 W max. Tip diameter of soldering iron Soldering time Number of reworking operations ø3 mm max. 3 s (+1 s, -0 s) 2 times max. * Avoid a direct contact of the tip of the soldering iron with the product. Such a direction contact may cause cracks in the ceramic body due to thermal shock. 12.5 Solder volume Solder shall be used not to increase the volume too much. An increased solder volume increases mechanical stress on the product. Exceeding solder volume may cause the failure of mechanical or electrical performance. MURATA MFG CO., LTD Spec No.: JELF243A_0102J-01 P12/14 12.6 Product's location The following shall be considered when designing and laying out PCBs. (1) PCB shall be designed so that products are not subject to mechanical stress due to warping the board. [Products direction] Products shall be located in the sideways direction (length: a < b) to the mechanical stress. a b 〈 Poor example〉 〈 Good example〉 (2) Components location on PCB separation It is effective to implement the following measures, to reduce stress in separating the board. It is best to implement all of the following three measures; however, implement as many measures as possible to reduce stress. Contents of measures Stress level (1) Turn the mounting direction of the component parallel to the board separation surface. A > D*1 (2) Add slits in the board separation part. A>B (3) Keep the mounting position of the component away from the board separation surface. A>C *1 A > D is valid when stress is added vertically to the perforation as with hand separation. If a cutting disc is used, stress will be diagonal to the PCB, therefore A > D is invalid. (3) Mounting components near screw holes When a component is mounted near a screw hole, it may be affected by the board deflection that occurs during the tightening of the screw. Mount the component in a position as far away from the screw holes as possible. 12.7 Handling of substrate After mounting products on a substrate, do not apply any stress to the product caused by bending or twisting to the substrate when cropping the substrate, inserting and removing a connector from the substrate or tightening screw to the substrate. Excessive mechanical stress may cause cracking in the product. Bending Twisting MURATA MFG CO., LTD Spec No.: JELF243A_0102J-01 P13/14 12.8 Cleaning The product shall be cleaned under the following conditions. (1) The cleaning temperature shall be 60°C max. If isopropyl alcohol (IPA) is used, the cleaning temperature shall be 40°C max. (2) Perform ultrasonic cleaning under the following conditions. Exercise caution to prevent resonance phenomenon in mounted products and the PCB. Item Requirement Power Time 20 W/L max. 5 min max. Frequency 28 kHz to 40 kHz (3) Cleaner Alcohol-based cleaner: IPA Aqueous agent: PINE ALPHA ST-100S (4) There shall be no residual flux or residual cleaner. When using aqueous agent, rinse the product with deionized water adequately and completely dry it so that no cleaner is left. * For other cleaning, consult our technical department. 12.9 Storage and transportation Storage period Use the product within 12 months after delivery. If you do not use the product for more than 12 months, check solderability before using it. Storage conditions • The products shall be stored in a room not subject to rapid changes in temperature and humidity. The recommended temperature range is -10°C to +40°C. The recommended relative humidity range is 15% to 85%. Keeping the product in corrosive gases, such as sulfur, chlorine gas or acid, oxidizes the electrode, resulting in poor solderability or corrosion of the coil wire of the product. • Do not keep products in bulk packaging. Doing so may cause collision between the products or between the products and other products, resulting in core chipping or wire breakage. • Do not place the products directly on the floor; they should be placed on a palette so that they are not affected by humidity or dust. • Avoid keeping the products in a place exposed to direct sunlight, heat or vibration. Transportation Excessive vibration and impact reduces the reliability of the products. Exercise caution when handling the products. 12.10 Resin coating The inductance value may change due to high cure-stress of resin to be used for coating/molding products. A wire breakage issue may occur by mechanical stress caused by the resin, amount/cured shape of resin, or operating condition etc. Some resin contains some impurities or chloride possible to generate chlorine by hydrolysis under some operating condition may cause corrosion of wire of coil, leading to wire breakage. So, please pay your careful attention when you select resin in case of coating/molding the products with the resin. Prior to use the coating resin, please make sure no reliability issue is observed by evaluating products mounted on your board. 12.11 Handling of product • Sharp material such as a pair of tweezers or other material such as bristles of cleaning brush, shall not be touched to the winding portion to prevent the breaking of wire. • Mechanical shock should not be applied to the products mounted on the board to prevent the breaking of the core. 12.12 Handling with mounting equipment • With some types of mounting equipment, a support pin pushes up the product from the bottom of the base (paper) tape when the product is sucked with the pick-up nozzle. When using this type of equipment, detach the support pin to prevent the breaking of wire on the product. • In some cases, the laser recognition function of the mounting equipment may not recognize this product correctly. Please contact us when using laser recognition. (There is no problem with the permeation and reflection type.) 13. Note (1) Please make sure that your product has been evaluated in view of your specifications with our product being mounted to your product. (2) You are requested not to use our product deviating from the reference specifications. (3) The contents of this reference specification are subject to change without advance notice. Please approve our product specifications or transact the approval sheet for product specifications before ordering. MURATA MFG CO., LTD Spec No.: JELF243A_0102J-01 P14/14 14. Appendix Electrical performance: Measuring method for inductance/Q (Q measurement is applicable only when the Q value is included in the rating table.) Perform measurement using the method described below. (Perform correction for the error deriving from the measuring terminal.) (1) Residual elements and stray elements of the measuring terminal can be expressed by the F parameter for the 2-pole terminal as shown in the figure below. (2) The product's impedance value (Zx) and measured impedance value (Zm) can be expressed as shown below, by using the respective current and voltage for input/output. Zm= V1 I1 Zx= V2 I2 (3) Thus, the relationship between the product's impedance value (Zx) and measured impedance value (Zm) is as follows. Zx=α Zm-β 1-ZmΓ Here, α = D/A = 1 β = B/D = Zsm - (1 - Yom Zsm) Zss Γ = C/A = Yom Zsm: measured impedance of short chip Zss: residual impedance of short chip (0.771 nH) Yom: measured admittance when measuring terminal is open (4) Calculate inductance Lx and Qx using the equations shown below. Im (Zx) Lx: inductance of chip coil Lx= 2πf Qx: Q of chip coil Im (Zx) f: measuring frequency Qx= Re (Zx) MURATA MFG CO., LTD