WE-EHPI Energy Harvesting Coupled Inductor

Size	Dimensions	L (mm)	W (mm)	H (mm)
5838		6	6	4

LTSpice files

LT
LTSpice_WE-EHPI (rev23a).zip
|
2 KB

Characteristics

Low profile: 4 mm
Small footprint 6 x 6 mm
Very low secondary RDC
Multiple options of turn ratios available
Separated welding/soldering pads for increased reliability
Optimized winding technology for increased performance & reliability

Applications

Wireless fire, alarm, gas and metering remote sensors driven by environmental energies based on energy harvesting voltage transformers like LTC3108/LTC3109
Sensors with predictive battery replacements in applications which are difficult to access
Energy self-sufficient supply using subsequent installed sensors for energy harvesting

Application Notes

An Excellent Duet!

The WE-MCRI is an innovative molded coupled inductor with fully automated bifilar winding process. It offers an almost ideal coupling coefficient up to 0.995.

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Order Code	Datasheet	Downloads	Status	L₁(µH)	L₂(µH)	n	I_R(A)	I_SAT1(A)	R_{DC1 typ}(Ω)	R_{DC2 typ}(Ω)	R_{DC1 max}(Ω)	R_{DC2 max}(Ω)	SamplesAvailability & Sample
74488540070	SPEC7 µH, 70000 µH, 1 : 100	Availability –	Downloads8 files EDA models: Components ZIP ALT WE-EHPI (rev22b).IntLib \| 735 KB CDS Cadence_WE-EHPI (rev23a).zip \| 2.2 MB EAG Eagle_WE-EHPI (rev19a).lbr \| 21.9 KB KIC KiCad_WE-EHPI (rev25b).zip \| 99.9 KB CAD files ZIP 3D 3D_74488540070 (rev1).pdf \| 2.5 MB IGS WE-EHPI_5838 (rev1).igs \| 3.3 MB STP WE-EHPI_5838 (rev1).stp \| 1.2 MB Electric models ZIP PSP PSpice_WE-EHPI (rev23a).zip \| 3.5 KB Download all 8 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Inductance 17 µH	Inductance 270000 µH	Turns Ratio1 : 100	Rated Current1.9 A	Saturation Current 11.3 A	DC Resistance 10.085 Ω	DC Resistance 2205 Ω	DC Resistance 10.095 Ω	DC Resistance 2240 Ω	–Check availability
74488540120	SPEC13 µH, 33000 µH, 1 : 50	Availability –	Downloads8 files EDA models: Components ZIP ALT WE-EHPI (rev22b).IntLib \| 735 KB CDS Cadence_WE-EHPI (rev23a).zip \| 2.2 MB EAG Eagle_WE-EHPI (rev19a).lbr \| 21.9 KB KIC KiCad_WE-EHPI (rev25b).zip \| 99.9 KB CAD files ZIP 3D 3D_74488540120 (rev1).pdf \| 2.5 MB IGS WE-EHPI_5838 (rev1).igs \| 3.3 MB STP WE-EHPI_5838 (rev1).stp \| 1.2 MB Electric models ZIP PSP PSpice_WE-EHPI (rev23a).zip \| 3.5 KB Download all 8 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Inductance 113 µH	Inductance 233000 µH	Turns Ratio1 : 50	Rated Current1.7 A	Saturation Current 11 A	DC Resistance 10.09 Ω	DC Resistance 2135 Ω	DC Resistance 10.1 Ω	DC Resistance 2155 Ω	–Check availability
74488540250	SPEC25 µH, 10000 µH, 1 : 20	Availability –	Downloads8 files EDA models: Components ZIP ALT WE-EHPI (rev22b).IntLib \| 735 KB CDS Cadence_WE-EHPI (rev23a).zip \| 2.2 MB EAG Eagle_WE-EHPI (rev19a).lbr \| 21.9 KB KIC KiCad_WE-EHPI (rev25b).zip \| 99.9 KB CAD files ZIP 3D 3D_74488540250 (rev1).pdf \| 2.5 MB IGS WE-EHPI_5838 (rev1).igs \| 3.3 MB STP WE-EHPI_5838 (rev1).stp \| 1.2 MB Electric models ZIP PSP PSpice_WE-EHPI (rev23a).zip \| 3.5 KB Download all 8 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Inductance 125 µH	Inductance 210000 µH	Turns Ratio1 : 20	Rated Current1.5 A	Saturation Current 10.7 A	DC Resistance 10.2 Ω	DC Resistance 242 Ω	DC Resistance 10.24 Ω	DC Resistance 248 Ω	–Check availability

Expected Availability	Opening inventory	Quantity
Current Availability	–	–

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