===== Lenovo Rectangular Power Adapter to 5.5mm Round Jack =====

{{:solder_station_adapter.jpg?600|}}\\

To use a Lenove Power supply together with my traveling solder station T12-642 I build a small TRIM adapter. The Lenovo power connector is called "TRIM Series connector" and my solder station needs a 5.5mm round jack power connector. So I needed a TRIM to 5.5 jack plug.\\

{{:trim_front.jpg?200|}} {{:trim_back.jpg?200|}} {{:round_jack.jpg?200|}}\\

To adjust the power of the supply one has to put a resistor between the signal pin and ground. Because I need 100W I used a 1k resistor between the signal pin and the ground.\\

{{:trim_pinout.jpg?400|}}\\

Resistance on Signal Pin:
  power rating 	resistance
  36 W 	        7,3 kΩ
  45 W 	        120 Ω
  65 W 	        280 Ω
  90 W 	        550 Ω
  135 W           1 kΩ
  170 W           1.9 kΩ
  230 W           4.6 kΩ 

The soldered adapter looks like that:\\
{{:adapter_soldered.jpg?400|}}\\
... and with some shrinking tube like that:\\
{{:adapter_shrank.jpg?400|}}\\

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==== Links ====

[[https://superuser.com/questions/1246823/lenovo-trim-yellow-rectangular-power-adapter]]\\
[[http://www.thinkwiki.org/wiki/Power_Connector#slim_power_tips]]\\

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