Product # PQ60120EKx04

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-0005190 Rev. A

07/13/09

Page 7

Input:

Output:

Current:

Part No.:

35-75V

12V

4A

PQ60120EKx04

Technical Specification

0

2

4

6

8

10

0

1

2

3

4

Load Current (A)

35 Vin

48 Vin

75 Vin

60

65

70

75

80

85

90

95

100

0

1

2

3

4

Load Current (A)

35 Vin

48 Vin

75 Vin

3

4

5

6

100

200

300

400

Air Flow (LFM)

25º C

40º C

55º C

0

1

2

3

4

5

6

25

40

55

70

85

Ambient Air Temperature (ºC)

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

84.0

84.5

85.0

85.5

86.0

86.5

87.0

100

200

300

400

Air Flow (LFM)

25º C

40º C

55º C

Figure 1: Efficiency at nominal output voltage vs. load current for minimum,

nominal, and maximum input voltage 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

minimum, nominal, and maximum input voltage 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).

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 (nominal input voltage).

Figure 6: Thermal plot of converter at 4 amp load current (48W) with 55°C

air flowing at the rate of 200 LFM. Air is flowing from pin 3 to pin 1 (nominal

input voltage).

Semiconductor junction temperature is

within 1°C of surface temperature

PQ60-EK Figures