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MSS1278H-124

RoHS compliant halogen free AEC-Q flag

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Specifications

Electrical specifications at 25°C.

Part number 1 Inductance (µH) 2
(Tolerance: ±10%)
DCR (mΩ) 3 SRF typ (MHz) 4 Isat (A) 5 Irms (A) 6
typ max 10% drop 20% drop 30% drop 20°C rise 40°C rise
MSS1278H-124K_D 120 113 132 4.5 2.2 2.5 2.7 1.60 2.20
Notes
  1. When ordering, please specify termination code: e.g. MSS1278H-105KED
  2. Inductance measured at 100 kHz, 0.1 Vrms using a Coilcraft SMD-A fixture in an Agilent/HP 4263B LCR meter or equivalent.
  3. DCR measured on a micro-ohmmeter and a Coilcraft CCF858 test fixture. For other operating temperatures, use this DCR at Temperature calculator.
  4. SRF measured using an Agilent/HP 8573D network analyzer or equivalent. Details
  5. Isat: DC current at 25°C that causes the specified inductance drop from its value without current.
    Temperature derating curves.
  6. Irms: Current that causes the specified temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings. Temperature derating curves.

Termination:

  • E = RoHS compliant matte tin over nickel over phos bronze.
  • T = RoHS tin-silver-copper (95.5/4/0.5). (Special order, added cost)
  • S = non-RoHS tin-lead (63/37). (Special order, added cost)

Packaging:

  • 13" reel, machine-ready 
    EIA-481 embossed plastic tape (500 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
Environmental
Environmental:
RoHS compliant , halogen free
Ambient temperature range:
–40°C to +125°C with (40°C rise) Irms current
Storage temperature range:
Component: –40°C to +165°C.
Tape and reel packaging: –40°C to +80°C
Maximum part temperature:
+165°C (ambient + temp rise)
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

Performance curves

Typical L vs Frequency

Typical L vs Current

Physical characteristics

mss1278hd-(1).gif

dims_inches_mm.gif

Tape and Reel specification

tapereel_pl.gif
Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation 
13" (330 mm) A B C D E W P Po P1 H T part_or_o.gif
500 330 100 13 30,4 24,4 24 16 4 2 8,7 0,5
 Part marking does not indicate polarity.

General specification

Core Material:
Ferrite
Weight:
3.8 g – 4.6 g
Packaging:
500/13″ reel; Plastic tape: 24 mm wide, 0.5 mm thick, 16 mm pocket spacing, 8.7 mm pocket depth.

Soldering/Washing

Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
Resistance to soldering heat:
Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles.
Refer to Soldering Coilcraft Components before soldering.
PCB Washing:
Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

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