TRUMPower has launched its 105W TMP105-20-LNR ac-dc medical-grade power adapter, which is set at 20V output voltage and specifically configured to charge Lenovo® ThinkPad® laptop computers. The power adapter comes with a rectangular slim tip plug with a signal pin, which is compatible with a lot of Lenovo® ThinkPad® models such as Helix, T431s, Edge E531, T440s, X1 Carbon, etc. The power adapter is approved to the latest medical and ITE safety standards, including the 3rd edition of EN 60601-1, UL 60601-1, and IEC 60601-1, and EN/UL/IEC 60950-1 2nd edition. The power supplies offer a low earth leakage current of less than 200µA and touch current of 100µA maximum at 264 Vac, 63 Hz.
With 0.98 active power factor, the TMP105-20-LNR operates at a 90 to 264 Vac universal input. The unit measures 5.76" (L) x 2.96" (W) x 1.54" (H) and comes equipped with the IEC 320/C14 ac inlet and a power-on LED indicator. Units come with the IEC320/C6 ac inlet or the IEC 320/C18 ac inlet is also available. TRUMPower also offers other connector options such as the big barrel "advanced" connector, with dimensions 7.5mm OD, 5.55mm ID, and a 0.8mm diameter signal pin, which is compatible with ThinkPad® models such as R60, R400, R500, T60, T400, T400s, T410s, T430, T500, T510, T520, W500, Z60m, Z60t, etc.
With an active efficiency of up to 89%, the power adapter is compliant with the CEC and Energy Star Level V standards. The unit is comprehensively protected against overvoltage and overcurrent conditions and deliver a reliable 150,000 hours minimum MTBF at full load at 25 degrees C ambient per MIL-HDBK-217F.