Web page Sample & buy Tools & software Support & FAQ Document 598-1 High Temp Power Inductors MSS1278T * Designed for high ambient temperatures * Magnetic shielding, very low DCR, excellent current handling Designer's Kit C419 contains 3 of each value Core material Ferrite Core and winding loss See www.coilcraft.com/coreloss Terminations RoHS compliant matte tin over nickel over phos bronze. Other terminations available at additional cost. Weight: 3.8 g - 4.6 g Ambient temperature -40C to +125C with (40C rise) Irms current. Maximum part temperature +165C (ambient + temp rise). Derating. Storage temperature Component: -40C to +165C. Tape and reel packaging: -40C to +80C Resistance to soldering heat Max three 40 second reflows at +260C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30C / 85% relative humidity) Failures in Time (FIT) / Mean Time Between Failures (MTBF) 38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332 Packaging 500/13 reel; Plastic tape: 24 mm wide, 0.5 mm thick, 16 mm pocket spacing, 8.7 mm pocket depth PCB washing Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. See Doc787_PCB_Washing.pdf. DCR3 SRF 2(mOhms) Inductance typ4 1 Part number (H) typ max (MHz) MSS1278T-102NL_1.0 30% 6.3 7.0 115 MSS1278T-142NL_1.4 30% 8.8 9.8 85 MSS1278T-222NL_2.2 30% 9.4 10.5 60 MSS1278T-272NL_2.7 30% 10.1 11.3 40 MSS1278T-392NL_3.9 30% 11.7 13.0 35 MSS1278T-472ML_4.7 20% 13.9 15.5 33 MSS1278T-562ML_5.6 20% 15.7 17.5 30 MSS1278T-682ML_6.8 20% 19.1 21.3 23 MSS1278T-822ML_8.2 20% 20.3 22.6 20 MSS1278T-103ML_10 20% 21.8 24.3 17 MSS1278T-123ML_12 20% 23.2 25.8 15 MSS1278T-153ML_15 20% 27.9 31.0 13 MSS1278T-183ML_18 20% 30.8 34.3 12 MSS1278T-223ML_22 20% 35.5 39.5 11 MSS1278T-273ML_27 20% 45.0 50.0 10 MSS1278T-333ML_33 20% 61.9 68.8 9.5 MSS1278T-393ML_39 20% 69.1 76.8 8.5 MSS1278T-473ML_47 20% 72.3 80.4 7.5 MSS1278T-563ML_56 20% 80.2 89.2 7.0 MSS1278T-683ML_68 20% 91.3 101.5 6.5 MSS1278T-823ML_82 20% 125.9 139.9 5.0 MSS1278T-104ML_ 100 20% 135.1 150.2 4.5 MSS1278T-124KL_ 120 10% 182.3 202.6 4.3 MSS1278T-154KL_ 150 10% 216.5 240.6 4.1 MSS1278T-184KL_ 180 10% 229.0 254.5 4.0 MSS1278T-224KL_ 220 10% 323.6 359.6 3.4 MSS1278T-274KL_ 270 10% 415.6 461.8 3.1 MSS1278T-334KL_ 330 10% 487.3 541.5 2.9 MSS1278T-394KL_ 390 10% 533.6 592.9 2.7 MSS1278T-474KL_ 470 10% 707.5 786.2 2.2 MSS1278T-564KL_ 560 10% 777.4 863.8 2.0 MSS1278T-684KL_ 680 10% 1045 1162 1.7 MSS1278T-824KL_ 820 10% 1166 1296 1.4 MSS1278T-105KL_ 1000 10% 1334 1482 1.3 Isat (A)5Irms (A)6 10% 20% 30% 20C 40C drop drop drop rise rise 31.84 35.04 36.84 7.1 10.1 25.04 27.76 29.52 6.8 9.8 22.56 24.80 25.96 6.3 9.2 18.76 20.72 22.04 6.1 8.6 16.52 18.24 19.20 5.7 7.7 15.30 16.90 17.76 4.3 6.2 13.38 14.86 15.74 4.3 6.2 12.10 13.56 14.20 4.2 6.0 11.38 12.60 13.28 4.1 5.9 10.62 11.82 12.48 4.0 5.7 8.90 9.88 10.44 3.7 5.2 8.36 9.32 9.94 3.5 4.9 8.00 8.88 9.36 3.0 4.5 7.08 7.88 8.34 2.9 4.0 6.32 7.08 7.54 2.6 3.6 5.96 6.56 6.98 2.3 3.1 5.38 5.94 6.28 2.1 3.0 4.76 5.40 5.66 2.0 2.9 4.40 4.98 5.30 1.9 2.7 3.92 4.46 4.74 1.8 2.6 3.66 4.08 4.38 1.6 2.3 3.12 3.56 3.78 1.5 2.2 3.02 3.36 3.58 1.4 1.9 2.60 2.94 3.10 1.3 1.8 2.36 2.68 2.84 1.2 1.7 2.24 2.50 2.62 1.0 1.6 1.94 2.18 2.34 0.90 1.2 1.72 1.92 2.06 0.80 1.0 1.62 1.82 1.92 0.75 1.0 1.44 1.64 1.74 0.66 0.90 1.40 1.54 1.66 0.60 0.80 1.24 1.32 1.46 0.55 0.75 1.14 1.28 1.42 0.50 0.70 0.982 1.08 1.18 0.48 0.68 1. Please specify termination and packaging codes: MSS1278T-105KLD Termination: L = RoHS compliant matte tin over nickel over phos bronze. Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or S = non-RoHS tin-lead (63/37). Packaging: D = 13 machine-ready reel. EIA-481 embossed plastic tape (500 parts per full reel). B = Less than full reel. In tape, but not machine ready. To have a leader and trailer added ($25 charge), use code letter D instead. 2. Inductance tested at 100 kHz, 0.1 Vrms, 0 Adc using an Agilent/HP 4263B LCR meter or equivalent. 3. DCR measured on a micro-ohmmeter and a Coilcraft CCF858 test fixture. 4. SRF measured using an Agilent/HP 8753D network analyzer and a Coilcraft SMDD test fixture. 5. DC current at 25C that causes the specified inductance drop from its value without current. Click for temperature derating information. 6. Current that causes the specified temperature rise from 25C ambient. This information is for reference only and does not represent absolute maximum ratings. Click for temperature derating information. 7. Electrical specifications at 25C. Refer to Doc 362 "Soldering Surface Mount Components" before soldering. US +1-847-639-6400 sales@coilcraft.com UK +44-1236-730595 sales@coilcraft-europe.com Taiwan +886-2-2264 3646 sales@coilcraft.com.tw China +86-21-6218 8074 sales@coilcraft.com.cn Singapore + 65-6484 8412 sales@coilcraft.com.sg Document 598-1 Revised 09/03/15 (c) Coilcraft Inc. 2017 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Document 598-2 URE T A R E P M E T HIGH SMT Power Inductors - MSS1278T Series Typical L vs Frequency Typical L vs Current 10000 10000 1000 H 100 H 100 10 H 10 1 H 1 0.1 0.01 1000 H 1000 Inductance (H) Inductance (H) 1000 0.1 100 H 100 10 H 10 1 H 1 1 10 0.1 0.1 Frequency (MHz) Dimensions are in 10 1 100 Current (A) inches mm US +1-847-639-6400 sales@coilcraft.com UK +44-1236-730595 sales@coilcraft-europe.com Taiwan +886-2-2264 3646 sales@coilcraft.com.tw China +86-21-6218 8074 sales@coilcraft.com.cn Singapore + 65-6484 8412 sales@coilcraft.com.sg Document 598-2 Revised 09/03/15 (c) Coilcraft Inc. 2017 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Coilcraft: MSS1278T-124KLD MSS1278T-474KLB MSS1278T-684KLD MSS1278T-563MLD MSS1278T-473MLD MSS1278T-823MLD MSS1278T-273MLD MSS1278T-102NLB MSS1278T-334KLB MSS1278T-274KLB MSS1278T562MLB MSS1278T-183MLB MSS1278T-153MLD MSS1278T-154KLD MSS1278T-103MLD MSS1278T-224KLB MSS1278T-683MLB MSS1278T-682MLB MSS1278T-333MLB MSS1278T-223MLD MSS1278T-392NLD MSS1278T824KLB MSS1278T-124KLB MSS1278T-103MLB MSS1278T-184KLD MSS1278T-142NLD MSS1278T-272NLB MSS1278T-392NLB MSS1278T-822MLD MSS1278T-682MLD MSS1278T-272NLD MSS1278T-564KLD MSS1278T683MLD MSS1278T-393MLB MSS1278T-822MLB MSS1278T-274KLD MSS1278T-105KLD MSS1278T-123MLD MSS1278T-564KLB MSS1278T-394KLD MSS1278T-104MLD MSS1278T-562MLD MSS1278T-333MLD MSS1278T223MLB MSS1278T-824KLD MSS1278T-224KLD MSS1278T-334KLD MSS1278T-142NLB MSS1278T-273MLB MSS1278T-474KLD MSS1278T-184KLB MSS1278T-394KLB MSS1278T-105KLB MSS1278T-823MLB MSS1278T183MLD MSS1278T-222NLB MSS1278T-563MLB MSS1278T-684KLB MSS1278T-153MLB MSS1278T-473MLB MSS1278T-104MLB MSS1278T-472MLB MSS1278T-102NLD MSS1278T-222NLD MSS1278T-123MLB MSS1278T472MLD MSS1278T-393MLD MSS1278T-154KLB