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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

THL 3WI(SM) Series 3 Watt

Input Specifications

Input current at no load (nominal input voltage)

24 Vin models: 30 mA typ.

48 Vin models: 20 mA typ.

Input current at full load (nominal input voltage)

24 Vin; 3.3 VDC model: 110 mA typ.

24 Vin other models: 160 mA typ.

48 Vin; 3.3 VDC model: 55 mA typ.

48 Vin other models: 80 mA typ.

Surge voltage (1 sec. max.)

24 Vin models: 50 V max.

48 Vin models: 100 V max.

Conducted noise

EN 55022 level A, FCC part 15, level A without

external components

Recommended input fuse (slow blow)

24 V models: 1500 mA

48 V models: 800 mA

Output Specifications

Voltage set accuracy

±2 % max

Regulation

– Input variation Vin min. to Vin max.

1.0 % max.

– Load variation 15 – 100 %

1.0 % max.

Minimum load

15 % of rated max current (operation at lower

load condition is safe but a higher output ripple

will be experienced)

Temperature coefficient

±0.02 %/K

Ripple and noise (20 MHz bandwidth)

60 mVp-p typ.

Transient response setting time (25 % load step change)

300 µs typ.

Short circuit protection

indefinite, automatic recovery

Capacitive load

3.3 & 5 VDC models: 220 µF max.

all other models: 47 µF max.

General Specifications

Temperature

– Operating (natural convection cooling 20 LFM)

–40°C to +85°C

– Storage

–40°C to +125°C

– Case

+105°C max.

Load derating (natural convection cooling 20 LFM)

DIP models: 2.5 %/K above +65°C

SMD 3.3 & 5.0 VDC models: 2.2 %/K above +55°C

SMD other models: 2.5 %/K above +60°C

Humidity (non condensing)

95 %

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

>300‘000 h

Isolation voltage (60 sec.)

– Input/Output

1’500 VDC

Isolation capacitance

– Input/Output

500 pF max.

Isolation resistance

– Input/Output (500 VDC)

>1 GOhm

Safety standard (designed to meet)

IEC 60950-1, UL 60950-1

Safety approvals

– CB test certificate according IEC 60950-1

www.tracopower.com/products/thl3wi-cb.pdf

– CSA certificate for UL/cUL 60950-1

www.tracopower.com/products/thl3wi-csa.pdf

Switching frequency

350 kHz

Altitude during operation

5‘000 m max. (16‘400 ft) approved

Remote On/Off

– On:

2.5 to 5.5 VDC or open circuit

– Off:

–0.7 to 0.8 VDC

– Off stand by input current

5 mA max.

Environmental compliance

– Reach

www.tracopower.com/products/thl3wi-reach.pdf

– RoHS

RoHS directive 2011/65/EU