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QSI Decoder Fan

Our 3.5CFM miniature fan can be used to reduce heating problems. The convenient size format 30 X 30 X 6 mm (1.18 X 1.18 X 0.24 in) will work in S, O, G and some wide body HO scales. The fan comes with 28 AWG 135mm (5.3”) power leads.

QSI Mini Cooling Fan 5V

The power requirements are as follows:

Some of the larger scale decoders include a 5 VDC output or you can use dropping resistors as follows:

Supply Voltage Resistor Ohms Watts
12 VDC 60 1.0
14 VDC 75 1.0
18 VDC 110 1.0


Ordering Information:

Fan Installation in Bachmann "Big Hauler" 4-6-0, Durango and Silverton.

Product Lineup

Discontinued