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Lundahl LL5402 Audio transformer

70,08 €
(58,89 € excl. vat)
Recommended retail price: 79,81 €
You save 12%, that is 9,73 €
including VAT., plus shipping
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  • Shipping time: 1 - 2 workdays
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Category
Manufacturer
Item no.
  • LL5402
Product weight
  • 0,10 kg
Shipping weight
  • 0,12 kg
Application
Compliance

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Description

Lundahl LL5402 is an audio output transformer for unbalanced drive, ideally used with mixed feedback drive circuits.
Turns ratio: 2 + 2 : 1 + 1

Lundahl LL5402 Audio Output Transformer

LL5402 is an audio output transformer for unbalanced drive, ideally used with mixed feedback drive circuits. The effect of capacitance between the primary and the secondary windings is can be reduced if pins 1 and 5 are connected to ground. The windings of the LL5402 are arranged such that cold ends of the primary widings surround each secondary winding.

Turns ratio: 2 + 2 : 1 + 1

Dims (Length x Width x Height above PCB (mm)): 43 x 28 x 21

Pin layout (viewed from component side) and winding schematics:

lundahl ll5402 audio transformer ausgangsüberträger

Spacing between pins:
5.08 mm (0.2")

Spacing between rows of pins: 30.48 mm (1.2")

Weight: 92 g

Rec. PCB hole diameter: 1.5 mm

Static resistance of each primary: 30 W

Static resistance of each secondary: 7 W

Leakage inductance of secondaries (sec. in series): 0.2 mH

No-load impedance: >800 W @ 50 Hz, +20 dBU

Optimum source impedance: Minus 15 W (See application below)

Balance of output (according to IRT, source < 10 W , Load 600 W): > 60 dB

Distortion (connection as application example below, load 600 W) + 22 dBU 0.1% @ 50 Hz

Frequency response (as below , load 600 W): 20 Hz -- 40 kHz +/- 0.3 dB

Voltage loss across transformer (at midband with 600 W load): 0 dB

Isolation between primary and secondary windings / between

windings and core:

4 kV / 2 kV


ll5402-Datasheet

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Ratings from users

  • 5 Stars: 89% (8)
  • 4 Stars: 0% (0)
  • 3 Stars: 0% (0)
  • 2 Stars: 0% (0)
  • 1 Star: 0% (0)
Average product review: Average Rating: 5/55

(This product has got 9 Reviews| View more ratings in other languages)

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More product reviews
  1. Average Rating: 5/55 Spisak B. Wrote at 29.11.2020
    I recommend it to everyone in the audio world
    I have not yet commissioned the Lundahl LL5402 transformer but I trust the manufacturer to read the feedback!
  2. Average Rating: 5/55 Mario P. Wrote at 11.03.2018
    Lundahl top
    Lundahl LL5402 Audio transformer is ideal for balanced line outputs on valve circuits
  3. Average Rating: 5/55 MICHELE D. Wrote at 30.11.2017
    LL5402
    fast and professional service!
  4. Average Rating: 5/55 Michael C. Wrote at 09.07.2017
    LL5402
    Excellent service !
  5. Average Rating: 5/55 Eric d. Wrote at 09.01.2016
    LL5402
    Excellent product and customer service
  6. Average Rating: 5/55 gregor d. Wrote at 30.12.2014
    lundahl LL5402
    Excellent product and customer service tnx for everything regards Gregor
  7. Average Rating: 5/55 Giuseppe S. Wrote at 27.11.2014
    Great service
    Excellent product and customer service
  8. Average Rating: 5/55 Arnau H. Wrote at 12.01.2013
    great product
    2nd time ill use them for a mnats 1176 rev J, excellent product and customer service

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