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Isolation transformers

Photo TypeTurns RatioSize LxWxHMax PrimlevelApplications / CommentsUnit price Euro*
VAT excl.
LL15271+1 : 1+138x24x17+16 dBUThe "standard" problem solver. Ground isolation, MS decoding,
splitting 1 direct + 1 isolated outputs. Mic input 200:800 Ω.
€54.35
LL1527A1+1 : 1+138x24x17+16 dBUAs LL 1527. Secondary shields available individually on connector pins.€54.35
LL1527XL1+1 :1+138x24x20.5+19 dBUAs LL1527, but with + 3 dB level capability compared to the LL1527.€64.43
LL1532
1+1 : 228x17x15+10 dBUA small size audio transformer. For isolation and microphone input (200:800 Ω).€50.59
LL15701+1 : 1+138x24x17+16 dBUSplitting 1 direct + 1 isolated outputs. Extra wide bandwidth.
Microphone input (200 : 800 Ω).
€59.88
LL1570XL1+1 : 1+138x24x20.5+19 dBUAs LL1570, but with + 3 dB level capability compared to the LL1570.€69.96
LL1588 1+1 : 1+147x28x24+28 dBUHigh level isolation applications 1:2 microphone input. Phase splitting.€79.94


LL1591 1+1 : 1+137x22x17+16 dBU”Naked” LL1527 -> no Faraday shields and no mu metal housing.
Not for demanding applications.
€32.91
LL1593 1+1 : 228x17x14+12 dBU”Naked” LL1532 -> no Faraday shields and no mu metal housing.
Not for demanding applications.
€31.92
LL16841+1 : 1+142x28x22+25 dBUAmorphous core version of LL1588. High level isolation applications
1:2 microphone input. Phase splitting.
€104.84
LL79021+1+1+1 :1+1+1+166x32x21+28 dBUHigh level high quality general purpose transformer for very demanding
applications. "When only the best is good enough".
€115.42

*For larger quantities, please ask for quotation.

Splitting transformers

PhotoTypeTurn RatioSize LxWxHMax PrimlevelApplications / CommentsUnit price Euro*
VAT excl.

LL1581XL1+1 : 1+138x24x20.5+13 dBU (Prim. in parallel)Splitting 1 direct + 2 isolated outputs. Very high immunity to external
magnetic fields and to large ground differences.
€77.77

LL15831 : 1+128x17x15 +8 dBU Splitting 1 direct + 2 isolated outputs. Small size mic. level transformer
with the same excellent noise immunity as the LL1581XL.
€60.47
LL15901 : 1+1+147x28x23+13 dBUSplitting1 direct + 3 isolated outputs.€115.42
LL79041+1: 1+166x32x21 +23dBU (Prim. in parallel)Very high level splitting transformer for 1 direct + 2 isolated outputs.
Very high immunity to external magnetic fields and to large ground differences.
€123.32

*For larger quantities, please ask for quotation.

Transformer DIN unit

Lundahl transformers DIN unitjpg

Most of the transformers above can be mounted in our DIN housing using our kit, for easy onsite installation.

For your convenience, the following selected units are fully assembled and ready to install.

Complete DIN units

Pre-assembled units with screw terminals, ready to install
PhotoTypeApplications / Comments
Unit price Euro*
VAT excl.

DIN1527Provides galvanic isolation and splitting 1 direct + 1 isolated. It is suitable for low-to-medium signal levels. €89.23

DIN1581XL Provides galvanic isolation and splitting 1 direct + 1 isolated. It is suitable for medium-to-high signal levels. €112.55

DIN1588Is intended for splitting 1 direct + 2 isolated. It is suitable for mic and line level signals up to +13 dBU.€114.82

*For larger quantities, please ask for quotation.