Product # PQ40120QGx08

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-2QG128D Rev. C

11/13/12

Page 6

Input:

Output:

Current:

Package:

18-75V

12V

8.33A

Quarter-brick

60

65

70

75

80

85

90

95

100

0

1

2

3

4

5

6

7

8

Load Current (A)

18 Vin

48 Vin

75 Vin

87

88

89

90

91

92

100

200

300

400

Air Flow (LFM)

25 ºC

40 ºC

55 ºC

0

2

4

6

8

10

12

14

0

1

2

3

4

5

6

7

8

Load Current (A)

18 Vin

48 Vin

75 Vin

3

4

5

6

7

100

200

300

400

Air Flow (LFM)

25 ºC

40 ºC

55 ºC

2

3

4

5

6

7

8

9

0

25

40

55

70

85

Ambient Air Temperature (°C)

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

Figures

Figure 1: Efficiency at nominal output voltage vs. load current for 18V, 48V and

75V input at 25°C.

Figure 2: Efficiency at nominal output voltage and 60% rated power vs. airflow

rate for ambient air temperatures of 25°C, 40°C, and 55°C (nominal input

voltage).

Figure 3: Power dissipation at nominal output voltage vs. load current for 18V,

48V and 75V input at 25°C.

Figure 4: Power dissipation at nominal output voltage and 60% rated power

vs. airflow rate for ambient air temperatures of 25°C, 40°C, and 55°C (nominal

input voltage, 48V input).

Figure 5: Maximum output power derating curves vs. ambient air temperature

for airflow rates of 100 LFM through 400 LFM with air flowing from pin 3 to pin

1 (24V input).

Figure 6: Thermal plot of converter 8.33 amp load current with 55°C air flowing

at the rate of 200 LFM. Air is flowing across the converter sideways from pin 3

to pin 1 (24V input).

Technical Figures