DC/DC Converter

URA_LD-20WR3 & URB_LD-20WR3 Series

2015.09.28-A/3

Page 1 of 9

MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

20W,Ultra wide input isolated & regulated dual /

single output DC/DC converter

FEATURES



Wide range of input voltage (4:1)



Efficiency up to 90%



No-load power consumption as low as 0.15W



Isolation voltage :1500VDC



Input under-voltage protection, output short

circuit

protection,

over-voltage

protection,

over-current protection



Operating temperature range: -40℃ to +85℃



Meet CISPR22/EN55022 CLASS A



Six-sided metal shielding package



A2S (wring mounting) and A4S (35mm rail

mounting) products featuring reverse polarity

protection for input



Meet UL60950 , EN60950 and

IEC60950

URA_LD-20WR3 & URB_LD-20WR3 series are isolated 20W DC-DC products with 4:1 input voltage. They feature efficiency up to 90%, 1500VDC

isolation, operating temperature of -40℃~+85℃, Input under-voltage protection, output short circuit protection, over-voltage protection,

over-current protection and EMI meets CISPR22/EN55022 CLASS A, which make them widely applied in data transmission device, battery

power supplies, tele-comunication device, distributed power supply system, remote control system, industrial robot system fields. And

extension package A2S and A4S also enable them with reverse voltage protection.

Selection Guide

Certification

Part No.

①

Input Voltage (VDC)

Output

Efficiency

③

(%,Min./Typ.)

@ Full Load

Max. Capacitive

Load

Nominal

(Range)

Max.

②

Output Voltage

(VDC)

Output Current

(mA)(Max./Min.)

UL/CE/CB

URA2405LD-20WR3

24

(9-36)

40

±5

±2000/0

84/86

4800

URA2409LD-20WR3

±9

±1111/0

86/88

1000

URA2412LD-20WR3

±12

±834/0

86/88

800

URA2415LD-20WR3

±15

±667/0

86/88

625

URB2403LD-20WR3

3.3

5000/0

84/86

10000

URB2405LD-20WR3

5

4000/0

88/90

10000

URB2409LD-20WR3

9

2222/0

87/89

4700

URB2412LD-20WR3

12

1667/0

87/89

1600

URB2415LD-20WR3

15

1333/0

88/90

1000

URB2424LD-20WR3

24

834/0

88/90

500

URA4805LD-20WR3

48

(18-75)

80

±5

±2000/0

84/86

4800

URA4812LD-20WR3

±12

±834/0

86/88

800

URA4815LD-20WR3

±15

±667/0

87/89

625

URB4803LD-20WR3

3.3

5000/0

84/86

10000

URB4805LD-20WR3

5

4000/0

88/90

10000

--

URB4809LD-20WR3

9

2222/0

87/89

4700

UL/CE/CB

URB4812LD-20WR3

12

1667/0

87/89

1600

URB4815LD-20WR3

15

1333/0

88/90

1000

URB4824LD-20WR3

24

834/0

88/90

500

Notes：①Series with suffix “H” are heat sink mounting; series with suffix “A2S” are chassis mounting，with suffix “A4S” are DIN-Rail mounting, for example

URB2405LD-20WHR3A2S is chassis mounting of with heat sink,URB2405LD-20WR3A4S is DIN-Rail mounting of without heat sink; If the application has a

higher requirement for heat dissipation, you can choose modules with heat sink;

②

Absolute maximum rating without damage on the converter, but it isn't recommended;

③

Efficiency is measured In nominal input voltage and rated output load;A2S (wiring) and A4S (rail) Model due to input reverse polarity protection,

minimum efficiency greater than Min.-2 is qualified;

④

The capacitive loads of positive and negative outputs are identical.