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Document 535 -1
Shielded Power Inductors – SER1052
• High current, low DCR shielded power inductors • 10.2 × 11 mm base; only 5.2 mm tall
Designer’s Kit C421 contains 3 of each value Core and winding loss See www.coilcraft.com/coreloss Core material Ferrite Terminations RoHS compliant tin-silver over tin over nickel over phos bronze (pins 1 and 2); matte tin over nickel over phos bronze (pin 3). Other terminations available at additional cost. Weight 1.6 g Ambient temperature –40°C to +85°C with (40°C rise) Irms current. Maximum part temperature +125°C (ambient + temp rise). Derating. Storage temperature Component: –40°C to +125°C. Tape and reel packaging: –40°C to +80°C Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 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 200/7″ reel; 700/13″ reel Plastic tape: 24 mm wide, 0.4 mm thick, 16 mm pocket spacing, 5.45 mm pocket depth PCB washing Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. See Doc787_PCB_Washing.pdf.
Inductance DCR SRF
Isat (A)5 Irms(A)6
±20%2 max3 typ4 10% 20% 30% 20°C 40°C
Part number1
(µH) (mOhm) (MHz) drop drop drop rise rise
SER1052-801ML_ SER1052-102ML_ SER1052-122ML_ SER1052-132ML_ SER1052-152ML_
0.80 1.0 1.2 1.3 1.5
4.0 4.0 6.0 4.0 4.0
100 95 91 81 75
24.9 25.2 25.6 12.5 16.3 16.5 17.0 17.5 12.5 16.3 20.5 21.0 21.3 11.0 15.0 12.9 16.8 17.2 12.5 16.3 13.5 14.0 14.5 11.0 15.0
SER1052-182ML_ SER1052-202ML_ SER1052-222ML_ SER1052-252ML_ SER1052-322ML_
1.8 2.0 2.2 2.5 3.2
6.0 9.0 4.0 7.5 6.0
70 65 58 55 53
13.3 13.8 14.3 11.0 15.0 15.3 15.8 16.2 8.5 11.5
8.9 9.6 10.0 12.5 16.3 11.4 11.8 12.1 9.0 12.0
7.3 7.8 8.5 11.0 15.0
SER1052-402ML_ 4.0 SER1052-432ML_ 4.3 SER1052-572ML_ 5.7
9.0 7.5 9.0
47 44 35
8.3 8.5 8.8 8.5 11.5 6.4 6.8 7.0 9.0 12.0 5.4 5.8 6.0 8.5 11.5
1. Please specify termination and packaging codes:
SER1052-572MLD Termination: L = RoHS compliant tin-silver over copper
(pins 1 and 2); matte tin over nickel over phos bronze (pin 3). Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or S = non-RoHS tin-lead (63/37). Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic tape (200 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 C instead. D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (700 parts per full reel) 2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A or equivalent. 3. DCR measured on a micro-ohmmeter. 4. SRF measured using an Agilent/HP 4395A network analyzer and an Ag.