Coilcraft LPD5030V Miniature Flyback Transformer
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LPD5030V Series Miniature
High-Isolation Transformers

  • 1 :1 flyback transformer with 1500 Vdc (1000 Vrms) winding-to-winding isolation
  • Functional Safety Listed by UL.
  • Only 2.9 mm high and 4.8 mm square
  • Can be used as coupled shielded power inductors in SEPIC applications or as common mode chokes
  • See Selecting inductors for SEPIC
  • Excellent coupling coefficient: K = 0.97 or greater
  • RoHS-compliant, halogen free. 260°C compatible. Matte tin over nickel over silver terminations

SPECIFICATIONS


 For Flyback Applications See SEPIC specifications
Part number1 Inductance
at 0 A2
±20% (µH)
Inductance
at Ipk3
±20% (µH)
DCR max4
(Ohms)
Leakage5
L typ
(µH)
Turns ratio Ipk3
LPD5030V-472ME_ 4.7 3.3 0.322 0.109 1 : 1 1.90
LPD5030V-682ME_ 6.8 4.7 0.395 0.109 1 : 1 1.55
LPD5030V-103ME_ 10 7.0 0.490 0.130 1 : 1 1.30
LPD5030V-333ME_ 33 23 0.895 0.195 1 : 1 0.67
LPD5030V-154ME_ 150 105 3.82 0.456 1 : 1 0.31
LPD5030V-224ME_ 220 154 5.25 0.541 1 : 1 0.24
1 When ordering, please specify packaging code: e.g. LPD5030V-333MEC
Packaging:

 

C = 7" machine-ready reel
EIA-481 embossed plastic tape 750 parts per full reel).
B = Less than full reel
In tape, but not machine-ready. To have a leader and trailer added ($25 charge), use code letter C instead.
D = 13" machine-ready reel
EIA-481 embossed plastic tape. Factory order only, not stocked (2500 parts per full reel).
2 Inductance shown for each winding, measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR meter or equivalent.
3 Peak primary current drawn at minimum input voltage.
4 DCR is for each winding. DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
5 Leakage inductance is for L1 and is measured with L2 shorted.
6 Ambient temperature range: −40°C to +85°C with Irms current.
7 Storage temperature range: Component: −40°C to +125°C
Tape and reel packaging: −40°C to +80°C
8 Maximum part temperature: +125°C (Ambient + temperature rise)
9 Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.
10 Electrical specifications at 25°C.
Refer to Soldering Coilcraft Components before soldering.
 For SEPIC Applications See Flyback specifications
Part number1     L ±20% 2
(µH)
DCR
max3
(Ohms)
SRF
typ4
(MHz)
Coupling
coefficient
typ
Leakage
L typ5
(µH)
Isat (A)6 Irms (A)
10%
drop 
20%
drop 
30%
drop
both
windings7
one
winding8
LPD5030V-472ME_ 4.7 0.322 55.0 0.97 0.109 1.45 1.70 1.90 0.65 0.92
LPD5030V-682ME_ 6.8 0.395 49.9 0.97 0.109 1.30 1.50 1.55 0.59 0.83
LPD5030V-103ME_ 10 0.490 37.1 0.97 0.130 1.10 1.20 1.30 0.54 0.76
LPD5030V-333ME_ 33 0.895 19.2 0.98 0.195 0.49 0.59 0.67 0.43 0.61
LPD5030V-154ME_ 150 3.82 8.1 0.98 0.456 0.25 0.29 0.31 0.18 0.25
LPD5030V-224ME_ 220 5.25 6.5 >0.99 0.541 0.16 0.21 0.24 0.16 0.22
1 When ordering, please specify packaging code: e.g. LPD5030V-333MEC
Packaging:

 

C = 7" machine-ready reel
EIA-481 embossed plastic tape 750 parts per full reel).
B = Less than full reel
In tape, but not machine-ready. To have a leader and trailer added ($25 charge), use code letter C instead.
D = 13" machine-ready reel
EIA-481 embossed plastic tape. Factory order only, not stocked (2500 parts per full reel).
2 Inductance shown for each winding, measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR meter or equivalent. When leads are connected in parallel, inductance is the same value. When leads are connected in series, inductance is four times the value
3 DCR is for each winding. When leads are connected in parallel, DCR is half the value. When leads are connected in series, DCR is twice the value. DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
4 SRF measured using an Agilent/HP 4191A or equivalent. When leads are connected in parallel, SRF is the same value.
5 Leakage inductance is for L1 and is measured with L2 shorted.
6 Isat: DC current, at which the inductance drops the specified amount from its value without current. It is the sum of the current flowing in both windings.
7 Irms, both windings: Equal current when applied to each winding simultaneously that causes a 40°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings. Determine temperature rise.
8 Irms, one winding: Current when applied to one winding that causes a 40°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings.
Determine temperature rise.
9 Ambient temperature range: −40°C to +85°C with Irms current.
10 Storage temperature range: Component: −40°C to +125°C
Tape and reel packaging: −40°C to +80°C
11 Maximum part temperature: +125°C (Ambient + temperature rise)
12 Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.
13 Electrical specifications at 25°C.
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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Updated: April 16, 2018