OverviewAll product unitsProduct unitPassive ComponentsProduct groupPower MagneticsProduct familyCoupled Power InductorsProduct seriesWE-EHPI Energy Harvesting Coupled Inductor

WE-EHPI Energy Harvesting Coupled Inductor

WE-EHPI Energy Harvesting Coupled Inductor
Size Dimen­sionsL
(mm)
W
(mm)
H
(mm)
5838 6 6 4

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

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.

Product video and more

Products

5838
Order Code Data­sheet Downloads StatusL1
(µH)
L2
(µH)
nIR
(A)
IR
(A)
ISAT
(A)
ISAT1
(A)
RDC1 typ
(Ω)
RDC2 typ
(Ω)
RDC1 max
(Ω)
RDC2 max
(Ω)
Samples
74488540070SPEC
7 files Active i| Production is active. Expected lifetime: >10 years. 7 70000 1 : 100 1.9 1.9 1.3 1.3 0.085 205 0.095 240
74488540120SPEC
7 files Active i| Production is active. Expected lifetime: >10 years. 13 33000 1 : 50 1.7 1.7 1 1 0.09 135 0.1 155
74488540250SPEC
7 files Active i| Production is active. Expected lifetime: >10 years. 25 10000 1 : 20 1.5 1.5 0.7 0.7 0.2 42 0.24 48
Order Code Data­sheet
74488540070SPEC
74488540120SPEC
74488540250SPEC
Samples
Order Code Data­sheet Downloads StatusL1
(µH)
L2
(µH)
nIR
(A)
IR
(A)
ISAT
(A)
ISAT1
(A)
RDC1 typ
(Ω)
RDC2 typ
(Ω)
RDC1 max
(Ω)
RDC2 max
(Ω)
Samples

REDEXPERT loss simulation

Find the best inductor!

REDEXPERT has the world’s most accurate AC loss model, which even includes the DC-bias current. With dedicated DC-DC topologies or the generic loss simulator, you can accurately determine the AC and DC losses for your converter. The model includes the core material, shape and winding structure of the inductor. REDEXPERT recommends suitable inductors and allows you to add more filters to find the best inductor for your application.

Videos

WE-MCRI – Innovative Molded Coupled Inductor by Würth Elektronik eiSos

Videos

Würth Elektronik Webinar: Energy Harvesting development steps

Videos

Würth Elektronik Webinar: Energy Harvesting is no longer a fiction

Videos

Würth Elektronik Webinar: Energy Harvesting: Now a Real and Efficient Solution

Videos

Würth Elektronik Webinar: Energy Harvesting ist keine Fiktion mehr

Videos

Würth Elektronik Webinar: Energy Harvesting development steps