Pin configuration (transformer seen from component side with label readable) 4, 3, 2, 1 LL1515 8, 7, 6, 5 LL1515 Usage (1:7) in+ pin 1 + 3 in- pin 2+4 out+ pin 6 out- pin 7 ground pin 5
Turns ratio 1:1 In+ pin 1 (left bottom, if you read transformer label correctly) In- pin 5 Out+ pin 7 Out - pin 10 (right top) Connect pin 6 + 9 Ground pin 8 Turns ratio 2:1 In+ pin 1 (left bottom, if you read transformer label correctly) In- pin 5 Out+ pin 7 + pin 9 Out - pin 10 + pin 6 Ground pin 8
Usage: In+ pin 1 (left row, bottom pin when viewed from component side) In- pin 3 connect pin 2 + pin 4 Out+ pin 5 (right row, bottom pin when viewed from component side) Out- pin 8 Shields pin 6
Usage: In+ pin 1 In- pin 4 Centertap pin 2 Out+ pin 6 Out- pin 7 Faraday shields pin 5 + 8
Usage: In+ pin 1 (coil 1) and pin 4 (coil 2) In- pin 2 (coil 1) and pin 3 (coil 2) Centertap pin 2 Out+ pin 8 Out- pin 6 Faraday shields pin 5
LL2801 is a 600 ohm output transformer, turns ration 1:1 Core: Radiometal lamination, ED style. Usage: in+ 7 in- 6 out+ 9 out- 10
Pin configuration: (Transformer seen from pin side. I am afraid I can not tell orientation, as our notes are incomplete and we have no samples left.) 4, 3, 2, 1 LL2804 8, 7, 6, 5 LL2804 Usage (1:7) in+ pin 2 in- pin 3 out+ pin 6 out- pin 7 Housing pin 1 Core pin 4 Faraday shield pin 5+8
Usage 1:1 in+ 7 in- 9 out+ 1 out- 5 connect 2 + 4 Faraday shield 10 + 6 Usage 2:1 in+ 7 in- 9 out+ 1+4 out- 2+5 Faraday shield 10 + 6
Usage, 3 : 2 In+ pin 1 + pin 6 in- pin 3 + pin 4 leave pin 2 + pin 5 Out+ pin 7 Out- pin 11 Connect pin 12 + pin 8 Ground pin 10 no pin at 9
Usage, 1 : 5 In+ pin 1 + pin 4 In- pin 2 + pin 3 out+ pin 8 out- pin 6 Shields pin 5 no pin at 7
Usage: in+ pin 1 in- pin 2 out+ pin 6 out- pin 5 Shields pin 4
Pin configuration (as seen from PIN side) 4, 3, 2, 1 8, 6, 5, LL4501 usage (turn ration 1 : 1) pin 1 primary signal in (+) pin 3 primary side ground pin 2 + pin 4 connect pin 8 out + pin 6 out - pin 5 Faraday shield. Ground.
Pin configuration (as seen from PIN side) 4, 3, 1, 8, 7, 6, 5, Usage (1:1): in+ pin 8 in- pin 5 connect pin 6 + pin 7 out+ pin 4 out- pin 3 Faraday shield pin 1
LL4602 usage (turn ration 1 : 1) Pin 1 + Pin 5 primary ground pin 2 + pin 4 primary signal in (+) pin 3 not used pin 7 out + pin 10 out - pin 6 + pin 9 connect
Pin configuration (as seen from PIN side) 4, 3, 1, 8, 7, 6, 5, Usage (1:1): in+ pin 8 in- pin 5 connect pin 6 + pin 7 out+ pin 4 out- pin 3 Faraday shield pin 1
Usage: in+ pin 1 in- pin 2 in+ pin 4 in- pin 5 (Pins 1, 2, 4, 5 can be used in series or in parallel) out+ pin 7 out centertap pin 3 out- pin 9 Shields pins 6 and 10
Pin configuration (transformer seen from component side with label readable) 4, 3, 2, 1 LL4901 8, 7, 6, 5 LL4901 Usage (1:5) in+ pin 1 in- pin 4 connect pis 2 + 3 out+ pin 6 out- pin 7 ground pin 5
Pin configuration (transformer seen from component side with label readable) 4, 3, 2, 1 LL4902 8, 7, 6, 5 LL4902 Usage (1:11) in+ pin 1 in- pin 4 connect pins 2 + 3 out+ pin 6 out- pin 7 ground 1 pin 5 ground 2 + case and core pin 8
Pin configuration (transformer seen from side of flying leads) 1 5 2 6 3 7 4 8 LL5008 usage (1:1) in+ pin 2 in- pin 4 connect pins 1+3 out+ pin 6 out- pin 8 connect pins 5+7
Pin configuration (as seen from PIN side) 5, 4, 3, 2, 1 10, 9, 7, 6, Usage (1:1): in+ pin 1 in- pin 4 connect pin 2 + pin 5 out+ pin 10 out- pin 7 connect pin 9 + 6 Pin 3 not connected
Pin configuration (as seen from PIN side) 6, 5, 4, 3, 2, 1 12, 11, 9, 8, 7 Usage (1: 1.6): in+ pin 1 in- pin 4 connect pin 6 + 3 out+ pin 7 + 12 out- pin 11 + 8 Faraday shield + housing pin 9 Usage (1: 3.2): in+ pin 1 in- pin 4 connect pin 6 + 3 out+ pin 7 out- pin 11 connect pin 12+8 Faraday shield + housing pin 9
Pin configuration (transformer seen from component side with label readable) 4, 3, 2, 1 LL5801 8, 7, 6, 5 (I am sorry, but I am unsure about orientation, as we have no samples left in stock. There is connection between pins 1 and 2, but not between pins 5 and 6) LL5801 Usage (1:1) in+ pin 1 in- pin 4 connect pin 2 + 3 out+ pin 6 out- pin 7 ground pin 5+8 (Faraday shield)
in+ 1 in- 5 out+ 7 out- 9 Faraday shields 6+10
in+ 1 in- 5 out+ 7 out- 9 Faraday shields 6+10
in+ 8 in- 6 out+ 10 out- 4
in+ 2 in- 3 out+ 6 out- 7 core 1 Housing 4 Faraday shield 5SR504a is similar to the more modern transformer LL1538
Per Lundahl, web_master/AT/lundahl/DOT/se
Lundahl Transformers AB
Tibeliusgatan 7
SE-761 50 Norrtälje
SWEDEN
Phone: +46 - 176 139 30
Fax: +46 - 176 139 35
Email: office/AT/lundahl/DOT/se