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All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.

DC/DC Converters

THN 20 Series

20 Watt

Output Specifications

Max. capacitive load

3.3 VDC models: 7’000 µF

5 VDC models: 5’000 µF

12 VDC models: 850 µF

15 VDC models: 700 µF

±12 VDC models: 500 µF (each output)

±15 VDC models: 350 µF (each output)

General Specifications

Temperature ranges

– Operating without heat sink

–40°C to +75°C (with derating)

– Operating with heat sink

–40°C to +85°C (with derating)

– Case temperature

+105°C max.

– Storage

–55°C to +125°C

Power derating

– Operating without heat sink

2.0 %/K above 60°C

– Operating with heat sink

2.0 %/K above 70°C

Thermal inpedance

– Natural convection

17.6°C/W

– Natural convection with heat sink

14.8°C/W

Humidity (non condensing)

5 % to 95 % rel H max.

Reliability, calculated MTBF (MIL-HDBK-217F, at +25°C, ground benign)

>550’000 h

Isolation voltage (60sec.)

– Input/Output

1’500 VDC

Isolation capacitance

– Input/Output

1000 pF typ.

Isolation resistance

– Input/Output (500 VDC)

>1’000 MOhm

Remote On/Off

– On:

3.0 ... 15 VDC or open circuit

– Off:

0 ... 1.2 VDC or short circuit pin 6 and pin 2

– Off idle current:

1.5 mA

Switching frequency (fixed)

330 kHz typ. (pulse width modulation PWM)

Vibration and thermal shock

EN 61373, MIL-STD-810E

Safety standards

UL /cUL 60950-1, EN 60950-1, IEC 60950-1

Safety approvals

– UL/cUL

t

Physical Specifications

Casing material

nickel coated copper

Baseplate

non conductive FR4

Potting material

silicone (UL 94V-0 rated)

Weight

15 g (0.53 oz)

Soldering temperature

max. 265°C / 10 sec.

Environmental compliance

– Reach

www.tracopower.com/products/thn20-reach.pdf

– RoHS

RoHS directive 2011/65/EU