DC/DC Converters
THN 20WI Series 20 Watt
General Specifications
Temperature ranges
– Operating without heat sink
– Operating with heat sink
– Case temperature
– Storage
–40°C to +75°C (with derating)
–40°C to +85°C (with derating)
+105°C max.
–55°C to +125°C
Power derating
– Operating without heat sink
– Operating with heat sink
2.0 %/K above 60°C
2.0 %/K above 70°C
Thermal impedance
Humidity (non condensing)
– Natural convection
– Natural convection with heat sink
17.6°C/W
14.8°C/W
5 % to 95 % rel H max.
>550’000 h
Reliability, calculated MTBF (MIL-HDBK-217F, at +25°C, ground benign)
Isolation voltage (60sec.)
Isolation capacitance
Isolation resistance
Remote On/Off
– Input/Output
1’500 VDC
– Input/Output
1000 pF typ.
– Input/Output (500 VDC)
>1’000 MOhm
– On:
– Off:
– Off idle current:
3.0 ... 15 VDC or open circuit
0 ... 1.2 VDC or short circuit pin 6 and pin 2
1.5 mA
Switching frequency (fixed)
Vibration and thermal shock
Safety standards
330 kHz typ. (pulse width modulation PWM)
EN 61373, MIL-STD-810E
UL/cUL 60950-1, IEC/EN 60950-1
www.ul.com -> certifications -> File e188913
Safety approvals
– UL/cUL
Physical Specifications
Casing material
Baseplate
nickel coated copper
non conductive FR4
silicone (UL 94V-0 rated)
15 g (0.53 oz)
Potting material
Weight
Soldering temperature
max. 265°C / 10 sec.
Environmental compliance – Reach
www.tracopower.com/products/thn20wi-reach.pdf
RoHS directive 2011/65/EU
– RoHS
Application note: www.tracopower.com/products/thn20wi-application.pdf
All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
http://www.tracopower.com
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