User manual

TDK-Lambda

LS 25-150 Series

INSTRUCTION MANUAL

5-2 Mounting Method

1) This is convection cooling type power supply. In consideration of the heat radiation and safety, please keep a dis-

tance of more than 15mm between the power supply and the peripheral parts. When lining up multiple units, please

make sure to place them 15mm or more apart from each other.

2) Maximum allowable penetration of mounting screws into the power-supply is 5mm except LS25 (4mm).

3) Recommended torque for mounting screws of LS25 ~ LS150 (M3 screw) : 0.49 N⋅m (5.0 kgf⋅cm).

6. Wiring Method

z The input and output load wires shall be separated and twisted to improve noise immunity.

z Both wires must be as thick and short as possible to make lower impedance.

z Noise can be reduced by connecting a film capacitor with 0.1uF capacitance across the load terminals.

z For safety and EMI considerations, connect the FG terminal of LS series to mounting set ground terminal.

z The recommended wire type :

Recommended crimp-type terminal

MODEL

Recommended

Wire

Recommended torque

(MAX)

Mounting

Pieces

(MAX)

LS25 AWG16-22

M3.0 Screws

0.49 N⋅m (5.0 kgf⋅cm)

6.0mm

0.8mm

2 pieces

LS35 ~ LS150

AWG14-22

M3.5 Screws

1.0 N⋅m (9.8 kgf⋅cm) ~

1.4 N⋅m (13.7 kgf⋅cm)

6.8mm

0.8mm

2 pieces

Note 1 : When using separate loads, it is recommended to use 2 pieces of 0.8mm thick crimp-type terminal.

Note 2 : For recommended wire diameter, refer to wire maker recommended allowable current and voltage

drop. For higher output current model like 3.3V & 5V, bigger diameter wire is recommended.