Page 2 of 4 Issued Date：2008/05/21

Output Current

Input Current

Model

Number

Input

Range

Output

Voltage

Min. load

Full load

Line

Regulation

Load

Regulation

No

load

(3)

Full

load

(2)

Eff

(4)

(%)

HEC75-48S1P8

36 – 75 VDC

1.8 VDC

0mA

20 A

4 mV

6 mV

120mA

0.926 A

85

HEC75-48S2P5

36 – 75 VDC

2.5 VDC

0mA

20 A

5 mV

8 mV

90mA

1.255 A

87

HEC75-48S3P3

36 – 75 VDC

3.3 VDC

0mA

20 A

7 mV

10 mV

120mA

1.618 A

90

HEC75-48S05

36 – 75 VDC

5.0 VDC

0mA

15 A

10 mV

15 mV

130mA

1.838 A

90

HEC75-48S15

36 – 75 VDC

15 VDC

0mA

5 A

30 mV

45 mV

160mA

1.860 A

90

Output Voltage

Output Current

Model Number Input Range

V1

V2

Line

Regulation

Load

Regulation

Eff

(4)

(%)

HEC75-48D3305

36 – 75 VDC

5 VDC

3.3 VDC

15 A

15 A

10/7 mV

15/10 mV

88

HEC75-48D3325

36 – 75 VDC

3.3 VDC

2.5 VDC

15 A

15 A

7/5 mV

10/8 mV

81

HEC75-48D0518

36 – 75 VDC

5 VDC

1.8 VDC

15 A

15 A

10/4 mV

15/6 mV

85

HEC75-48D3318

36 – 75 VDC

3.3 VDC

1.8 VDC

15 A

15 A

7/4 mV

10/6 mV

81

Note

1. BELLCORE TR-NWT-000332. Case 1: 50% Stress, Temperature at Tc=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 no load.

4. Single：Typical value at nominal input voltage and full load.

Dual：Typical value at nominal input voltage and both outputs current are 7.5A.

5. Maximum output deviation is 10% inclusive of remote sense. If remote sense is not being used, the + sense should be connected to its corresponding

+OUTPUT and likewise the -sense should be connected to its corresponding –OUTPUT.

6. Measured with a 1μF M/C and a 10μF M/C(for dual outputs) or 1μF M/C and a 10μF T/C(for single outputs)

7. Dual output safety approvals pending.

8. The negative / positive logic and pin length are optional. The pin voltage is referenced to -Vin.

Single：Please see single output product options table.

Dual：Please see dual output product options table.

9. Heat sink is optional and P/N: 7G-0021A-F, 7G-0022A-F, 7G-0023A-F, 7G-0024A-F.

10. The HEC75 meets EN55022 class A and class B only with external components connected with the input pins of the converter.

11. An external input filter capacitor is required if the module has to meet EN61000-4-4, EN61000-4-5.

The filter capacitor Power Mate suggest: Nippon chemi-con KY series, 220μF/100V, ESR 48mΩ.

12. BASEPLATE GROUNDING：Base-plate should be grounded at one of the four screw bolts prior to operation.

13. The converter is provided by basic insulation.