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XAL7050 High-inductance Shielded Power Inductors
XGL4020 Ultra-low DCR Power Inductors

UA8164-BE Coupled Inductor

for Microchip Technology

RoHS compliant halogen free
  • Designed to work in a flyback topology for a haptic driver circuit
  • Switching frequency: 300 kHz; Vin: 3.0 V; Vout: 230 V
  • 1 : 10 turns ratio
  • 200 Vrms, 2 seconds winding-to-winding isolation (hipot)
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Electrical specifications at 25°C. Max capacitance: 26 pF at 100 kHz, 0.1 Vrms.

For Flyback Applications

Part number 1 Inductance (µH) 2
(Tolerance: ±20%)
DCR (mΩ) 3 Isolation
Voltage (V)
Inductance (nH) 4
Turns Ratio
L1 max L2 max
UA8164-BE_ 1.0 35.0 2400 200 105 1 : 10

For SEPIC Applications

Part number 1 Inductance (µH) 2
(Tolerance: ±20%)
DCR max (mΩ) 3 Leakage
Inductance (nH) 4
Isat (mA) 5
L1 L2
UA8164-BE_ 1.0 35.0 2400 105 10700
  1. When ordering, please specify packaging code: e.g. UA8164-BEC
  2. Inductance is measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR meter or equivalent.
  3. DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
  4. Leakage inductance is for L1 and is measured at 100 kHz, 0.1 Vrms with L2 shorted
  5. Isat: DC current applied to L1 at which the inductance drops 10% from its value without current.


  • RoHS compliant matte tin over nickel over phos bronze.


  • C = 7″ machine-ready reel. EIA-481 embossed plastic tape (250 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
  • B = Less than full reel. In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes. When ordering, simply change the last letter of your part number from B to C.
  • D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (1000 parts per full reel).
RoHS compliant , halogen free
Ambient temperature range:
–40°C to +85°C
Storage temperature range:
Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C
Failures in Time (FIT) / Mean Time Between Failures (MTBF):

Performance curves

Inductance vs Current

Inductance vs Frequency



Physical characteristics



Tape and Reel specification


Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
7" (178 mm) 13" (330 mm) A B C D E W P Po P1 H T part_or_ak.gif
250 1000* 178/330 60/100 13 22,4 16,4 16 12 4 2 4,9 0,4
* Special order

General specification

Core Material:
430 mg
250/7″ reel; 1000/13″ reel Plastic tape: 16 mm wide, 0.4 mm thick, 12 mm pocket spacing, 4.9 mm pocket depth
Winding to Winding Isolation:
200 Vrms applied for 2 seconds


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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