Datasheet

http://www.tracopower.com Page 2 of 3
All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
DC/DC Converters
TRA 3 Series 3 Watt
Input Specifications
Input current no load / full load 5 Vin models 50 mA / 700 mA typ.
12 Vin models 40 mA / 285 mA typ.
24 Vin models 30 mA / 150 mA typ.
Surge voltage (1 sec. max.) 5 Vin models 9 V max.
12 Vin models 18 V max.
24 Vin models 30 V max.
Input filter internal capacitor
Reverse polarity input current 0.5 A max.
Recommended input fuse (slow blow type) 5 Vin models: 2000 mA
12 Vin models: 1000 mA
24 Vin models: 500 mA
Output Specifications
Regulation – Input variation 1.2 % / 1 % change of Vin
– Load variation see graph 1 on page 3
Ripple and noise (20 MHz Bandwidth) 100 mVp-p max.
Temperature coefficient ± 0.02 %/K
Short circuit limited 0.5 sec. max.
Capacitive load 220 µF max.
General Specifications
Temperature ranges – Operating –40°C to +85°C (without derating)
– Case temperature +100°C max.
– Storage –50°C to +125°C
Humidity (non condensing) 95 % rel H max.
Reliability, calculated MTBF (MIL-HDBK-217F, at +25°C, ground benign) >2’000’000 h
Isolation voltage (60 sec.) Input/Output 1‘000 VDC
Isolation capacitance Input/Output 60 pF typ.
Isolation resistance Input/Output >1‘000 Mohm
Switching frequency tba. (frequency modulation)
Safety standards IEC 60950-1:2005 (2nd edition) + Am 1:2009
EN 60950-1:2006 + Am 1:2010 + Am 11:2009
Safety approvals – CB scheme ( IEC 60950-1) www.tracopower.com/products/tra3-cb.pdf
– CSA certification (UL 60950-1, CSA 60950-1-07) www.tracopower.com/products/tra3-csa.pdf
Environmental compliance – Reach
www.tracopower.com/products/tra3-reach.pdf
– RoHS RoHS directive 2011/65/EU
pending