MT3A- series

OUTPUT SPECIFICATIONS

Output power

3 Watts, max.

Voltage accuracy

Full load and nominal Vin

± 1%

Minimum load (Note 5)

See table

Line regulation

LL to HL at Full Load

± 0.2%

Load regulation

Min Load to Full Load

Single

Dual

3.3Vout

Others

± 0.3%

± 0.2%

± 2%

Cross regulation (Dual) Asymmetrical load 25% / 100% FL

± 5%

Ripple and noise

20MHz bandwidth

See table

Temperature coefficient

±

0.02% / ºC, max.

Transient response recovery time 25% load step change

500µS

Over load protection

% of FL at nominal input

180%, typ.

Short circuit protection

Continuous, automatics recovery

GENERAL SPECIFICATIONS

Efficiency

See table

Isolation voltage

Input

to Output

Input (Output)to case

500VDC ,min

500VDC ,min

Isolation resistance

10

Isolation capacitance

300pF, max.

Switching frequency

100KHz, min.

Design meet safety standard

IEC60950-1,UL60950-1,EN60950-1

Case material

Nickel-coated copper

Base material

Non-conductive black plastic

Potting material

Epoxy (UL94-V0)

MTBF (Note 1)

BELLCORE TR-NWT-000332

MIL-HDBK-217F

3.706 x 10

3.018 x 10

INPUT SPECIFICATIONS

Input voltage range

5V nominal input

12V nominal input

24V nominal input

48V nominal input

4.5 – 6VDC

9 – 18VDC

18 – 36VDC

36 – 75VDC

Input filter

Pi type

Input surge voltage

100mS max

5V input

12V input

24V input

48V input

15VDC

36VDC

50VDC

100VDC

Input reflected ripple current

Nominal Vin and full load

120mAp-p

Start up time

Nominal Vin and

constant resistive load

Power up

30mS, typ.

ENVIRONMENTAL SPECIFICATIONS

Operating ambient temperature

-25ºC ~ +85ºC (with derating)

Storage temperature range

-40ºC ~ +125ºC

Maximum case temperature

100ºC

Thermal shock

MIL-STD-810F

Vibration

MIL-STD-810F

Relative humidity

5% to 95% RH

EMC CHARACTERISTICS

EMI

EN55022

Class A

Note

1.

BELLCORE TR-NWT-000332. Case 1: 50% Stress, Temperature at 40ºC.

MIL-HDBK-217F Notice2 @Ta=25 ºC, Full load(Ground, Benign, controlled environment).

2.

Maximum value at nominal input voltage and full load.

3.

Typical value at nominal input voltage and full load.

4.

Test by minimum Vin and constant resistive load.

5.

The output requires a minimum loading on the output to maintain specified regulation. Operation under no-load condition will not

damage these devices, however they may not meet all listed specification.