DC/DC Converters
THL 20WI Series
20 Watt
General Specifications
Temperature ranges
– Operating (convection cooling 50 LFM, 0.25 m/s)
–40°C to +75°C (with derating)
– Operating with heat sink (natural convection 20 LFM) –40°C to +85°C (with derating)
– Case temperature
– Storage
+105°C max.
–50°C to +125°C
Load derating
(convection cooling 50 LFM, 0.25 m/s)
– without heat sink
24 V; 3.3 VDC models: 2.5 %/K above +64°C
48 V; 3.3 VDC models: 2.7 %/K above +68°C
5, 12 & 15 VDC single output models: 2.2 %/K above +60°C
24 VDC output models: 2.0 %/K above +55°C
dual output models: 2.2 %/K above +60°C
– with heat sink
24 V; 3.3 VDC models: 3.3 %/K above +70°C
48 V; 3.3 VDC models: 3.2 %/K above +74°C
5, 12 & 15 VDC output models: 3.1 %/K above +67°C
24 VDC output models: 2.7 %/K above +63°C
dual output models: 3.1 %/K above +67°C
Thermal inpedance
– Natural convection
– Natural convection with heat sink
18.2°C/W
15.8°C/W
Humidity (non condensing)
95 % rel H max.
>346’000 h
Reliability, calculated MTBF (MIL-HDBK-217F, at +25°C, ground benign)
Isolation voltage (60sec.)
Isolation capacitance
Isolation resistance
Remote On/Off
– Input/Output
1500 VDC
– Input/Output
1500 pF typ.
– Input/Output (500 VDC)
>1000 MOhm
– On:
3.5 ... 15 VDC or open circuit
– Off:
– Off idle current:
0 ... 1.2 VDC or short circuit pin 6 and pin 2
8 mA
Switching frequency (fixed)
330 kHz typ. (pulse width modulation PWM)
5‘000 m max. (16‘400 ft) approved
UL/cUL 60950-1, IEC/EN 60950-1
Altitude during operation
Safety standards (designed to meet)
Safety approvals – CB test certificate according IEC 60950-1
– CSA certificate for UL/cUL 60950-1
www.tracopower.com/products/thl20wi-cb.pdf
www.tracopower.com/products/thl20wi-csa.pdf
Environmental compliance – Reach
www.tracopower.com/products/thl20wi-reach.pdf
RoHS directive 2002/95/EC
– RoHS
Physical Specifications
Casing material
Baseplate
metal
non conductive FR4
epoxy (UL 94V-0 rated)
15 g (0.53 oz)
Potting material
Weight
Soldering temperature
max. 260°C / 10sec.
Application note : www.tracopower.com/products/thl20wi-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
Page 3 of 4
TOUCHSTONE [ TOUCHSTONE SEMICONDUCTOR INC ]
