Specifications of Heat Sinks

Thermal Characteristics  HS 40  HS 60  HS 80  HS 120 
heat load (max) with a temperature difference between laser diode module and ambi­ent (air) of
 0 K
 5 K
10 K


40 W
30 W
20 W


60 W
45 W
30 W


80 W
60 W
40 W


120 W
90 W
60 W
Tmax (hot side) max. 50°C 50°C 50°C 50°C
temperature difference 40 K 40 K 40 K 40 K
thermal resistance 0.3 K/W 0.2 K/W 0.15 K/W 0.1  K/W
electrical characteristics   
possible sensor types
(to be specified upon order)
PT 100
PT 1000
NTC 10 kOhm
PT 100
PT 1000
NTC 10 kOhm
PT 100
PT 1000
NTC 10 kOhm
PT 100
PT 1000
NTC 10 kOhm
Peltier current up to
(= opt. operation point)
0…4 A 0…4 A 0…10 A 0… 10 A
Peltier voltage up to
(= opt. operation point)
0…16 V 0…16 V 0…16 V 0…25 V
fan current 240 mA 480 mA 480 mA 1.5 A
fan voltage 12 V 12 V 12 V 12 V
general characteristics  
ambient temperature 0…30°C 0…30°C 0…30°C 0…30°C
relative humidity 30…70 % 30…70 % 30…70 % 30…70 %
weight 1 kg 1.5 kg 2 kg 3 kg
dimension (w x h x d) in mm3 195 x 95 x 105 290 x 95 x 105 225 x 135 x 180 310 x 74 x 188
ALS GmbH reserves the right to change specifications without prior notice.
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Schwarzschildstr. 6, D-12489 Berlin
Phone/Fax + 49 (0) 30 6392 652- 0/1