MPS Industries, Inc. - HWIA2918S Series High Current Helical Edge Wound (HEW) Flat Wire Inductor

High Current HEW™ Inductor in low-profile compact form
Inductance Range: 3.3 µH to 15 µH
Very low DCR
True 30 Amp handling capability on the wire (at high "L", Isat is more critical)
Dummy 3rd pin for mounting stability

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Unit of Measure

Items	HWIA2918-028A-3R3S 3.3 Microhenry (µH) Inductance (±10%) HWIA2918S Series High Current Helical Edge Wound (HEW) Flat Wire Inductor	HWIA2918-028A-4R7S 4.7 Microhenry (µH) Inductance (±10%) HWIA2918S Series High Current Helical Edge Wound (HEW) Flat Wire Inductor	HWIA2918-028A-6R8S 6.8 Microhenry (µH) Inductance (±10%) HWIA2918S Series High Current Helical Edge Wound (HEW) Flat Wire Inductor	HWIA2918-028A-100S 10.0 Microhenry (µH) Inductance (±10%) HWIA2918S Series High Current Helical Edge Wound (HEW) Flat Wire Inductor	HWIA2918-020A-150S 15.0 Microhenry (µH) Inductance (±10%) HWIA2918S Series High Current Helical Edge Wound (HEW) Flat Wire Inductor
Inductance (±10%)	N/A 3.30 µH	N/A 4.70 µH	N/A 6.80 µH	N/A 10 µH	N/A 15 µH
Nominal Direct Current (DC) Resistance	N/A 2.40 mOhm
Maximum Direct Current (DC) Resistance	N/A 2.70 mOhm
Isat (Typ) 10% drop	N/A 95.0 A	N/A 63.0 A	N/A 44.0 A	N/A 30.0 A	N/A 20.0 A
Isat (Typ) 20% drop	N/A >102 A	N/A 68.0 A	N/A 48.0 A	N/A 32.0 A	N/A 21.5 A
Isat (Typ) 30% drop	N/A >102 A	N/A 70.0 A	N/A 50.0 A	N/A 34.0 A	N/A 22.5 A
Irms (Typ) 20ºC rise	N/A 20 A
Irms (Typ) 40ºC rise	N/A 28 A
SRF (Typ)	N/A 33.5 MHz	N/A 28.0 MHz	N/A 22.0 MHz	N/A 15.8 MHz	N/A 13.0 MHz
Standard Operating Temperature Range	N/A -40 to 180 ºC
Note	N/A Inductance measured at 500 kHz, 0.1 Vrms, 0 Adc on Agilent/HP 4284A LCR meter or Equivalent. DCR measured on GW Instek GOM-802 Microhmmeter or Equivalent. DC Current at 25°C resulting in % drop of inductance from zero current. Isat is the more critical current specification when less than Irms. Current that causes a specificed temperature rise in an inductor from 25°C ambient. This specification is for reference only as the actual Temperature Rise will depends on the type of wires used and the cooling available (convection via airflow, or conduction through mounting to heat sink). The actual Temperature Rise will be much lower as the flat wire has greater surface for heat dissipation under power. SRF measured using Agilent/HP 4395A network analyzer and an Agilent/HP 43961A test fixture.	N/A Inductance measured at 500 kHz, 0.1 Vrms, 0 Adc on Agilent/HP 4284A LCR meter or Equivalent. DCR measured on GW Instek GOM-802 Microhmmeter or Equivalent. DC Current at 25°C resulting in % drop of inductance from zero current. Isat is the more critical current specification when less than Irms. Current that causes a specificed temperature rise in an inductor from 25°C ambient. This specification is for reference only as the actual Temperature Rise will depends on the type of wires used and the cooling available (convection via airflow, or conduction through mounting to heat sink). The actual Temperature Rise will be much lower as the flat wire has greater surface for heat dissipation under power. SRF measured using Agilent/HP 4395A network analyzer and an Agilent/HP 43961A test fixture.	N/A Inductance measured at 500 kHz, 0.1 Vrms, 0 Adc on Agilent/HP 4284A LCR meter or Equivalent. DCR measured on GW Instek GOM-802 Microhmmeter or Equivalent. DC Current at 25°C resulting in % drop of inductance from zero current. Isat is the more critical current specification when less than Irms. Current that causes a specificed temperature rise in an inductor from 25°C ambient. This specification is for reference only as the actual Temperature Rise will depends on the type of wires used and the cooling available (convection via airflow, or conduction through mounting to heat sink). The actual Temperature Rise will be much lower as the flat wire has greater surface for heat dissipation under power. SRF measured using Agilent/HP 4395A network analyzer and an Agilent/HP 43961A test fixture.	N/A Inductance measured at 500 kHz, 0.1 Vrms, 0 Adc on Agilent/HP 4284A LCR meter or Equivalent. DCR measured on GW Instek GOM-802 Microhmmeter or Equivalent. DC Current at 25°C resulting in % drop of inductance from zero current. Isat is the more critical current specification when less than Irms. Current that causes a specificed temperature rise in an inductor from 25°C ambient. This specification is for reference only as the actual Temperature Rise will depends on the type of wires used and the cooling available (convection via airflow, or conduction through mounting to heat sink). The actual Temperature Rise will be much lower as the flat wire has greater surface for heat dissipation under power. SRF measured using Agilent/HP 4395A network analyzer and an Agilent/HP 43961A test fixture.	N/A Inductance measured at 500 kHz, 0.1 Vrms, 0 Adc on Agilent/HP 4284A LCR meter or Equivalent. DCR measured on GW Instek GOM-802 Microhmmeter or Equivalent. DC Current at 25°C resulting in % drop of inductance from zero current. Isat is the more critical current specification when less than Irms. Current that causes a specificed temperature rise in an inductor from 25°C ambient. This specification is for reference only as the actual Temperature Rise will depends on the type of wires used and the cooling available (convection via airflow, or conduction through mounting to heat sink). The actual Temperature Rise will be much lower as the flat wire has greater surface for heat dissipation under power. SRF measured using Agilent/HP 4395A network analyzer and an Agilent/HP 43961A test fixture.