TFI 20

The new TFI line is a set of surge filters which come in compact DIP-24 (TFI 20) or 1.6” x 1” (TFI 150 and TFI 300) packages. Placed in front of any DC/DC converter the TFI clamps momentary over-voltage transients to a safe value in order to protect the DC/DC converter from being damaged. During normal operation the output voltage follows the input voltage (Vout = Vin – 2 VDC typ.) up to the point of 168 VDC where the voltage is actively clamped. Whereas the transients defined within the EN 50155 (up to 154 VDC) are covered by the wide input range of dedicated railway converters the TFI handles the stricter definition laid-out in the RIA12 standard which allows transients of up to 20ms at 385 VDC. This level of protection is specifically required in railway applications where high voltage transients are expected but can also be used for 72, 96 and 110 VDC battery systems in railway applications.

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Product Status
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Product is recommended for new designs.

Product Documentation

Datasheet

Additional Documents

3D Drawings
Compliance & Conformity

Accessories

Attribute
Value
Power Rating
20 W
Number of Outputs
single
Input Voltage
43-160 VDC
Housing Type
Plastic Case
Mounting Type
PCB Mount
Connection Type
THD (Through-Hole Device)
Length
31.8 mm
Width
20.3 mm
Depth
10.2 mm
Maximum Temperature
95 °C
Minimum Temperature
-40 °C
Weight
14 g
Remote On/Off
No

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Available stock at Traco Power central warehouse (Switzerland)
Note: Can be ordered via franchised distributors
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Conformity
REACH Declaration

TRACOPOWER products do not generally fall under the REACH directive. 
Our general REACH declaration is available via the following link: 

General REACH declaration

RoHS Compliance

TRACOPOWER completed successfully in July, 2006 the process of producing all power supply and dc/dc converter fully compliant to the European RoHS Directive (2002/95/EC). Excepted are those products which have been removed from the actual sales program (obsolete products).
The EU RoHS Directive and the China RoHS both denominate identical Substances and MCV’s (Maximum Concentration Values).
The current TRACO POWER RoHS declaration therefore satisfies the EU RoHS Directive as well as the China RoHS Regulation.

Directive 2011/65/EU

TRACOPOWER RoHS Declaration

Cleaning Guideline

We generally do not recommend washing or cleaning electronic components. You should avoid it, if it is not absolutely necessary. Please refer to cleaning guide.

Other models in series

Model
Power
Input
Output
Links
Datasheet
Additional Info
TFI 150
150 W
43-160 VDC
eCAD
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TFI 150
TFI 300
300 W
43-160 VDC
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TFI 300
Similar Models
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TFI 150

0-300 Watt RIA12 Surge Filter, railway, 168 VDC clamping voltage, encapsulated

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TFI 300

0-300 Watt RIA12 Surge Filter, railway, 168 VDC clamping voltage, encapsulated

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