HQ Series
40-50A High Efficiency Quarter Bricks
BTCPower
TM
Product Brief
Part Number and Selection Information
Model
Part Number
Positive Logic
HQ40A-48-3.3
HQ45A-48-2.5
HQ50A-48-1.8
HQ50A-48-1.5
HQ15A-48-12
HQ35A-48-5
Negative Logic
HQ40A-48-3.3N
HQ45A-48-2.5N
HQ50A-48-1.8N
HQ50A-48-1.5N
HQ15A-48-12N
HQ35A-48-5N
Voltage (Volts)
Nominal
48
48
48
48
48
48
Range
36-75
36-75
36-75
36-75
36-75
36-75
Input
Current (A)
No load
0.1
0.1
0.1
0.1
0.1
0.1
Full load
3.2
2.8
2.2
1.8
4.1
4.0
Output
Voltage
(Volts)
3.3
2.5
1.8
1.5
12.0
5.0
Current
(Amps)
40
45
50
50
15
35
Efficiency
75% Load
(%)
89
87
86
85
93
91
Typical at Ta= +25 ºC under nominal line voltage and 75% load conditions, unless noted.
Consult factory for other output voltage configurations and optional accessories such as heatsinks and filters.
Outline Information and Pin-out
Pin Connection
Pin#
Function
1
2
3
4
5
6
7
8
Vin +
On/Off
Vin -
Vout -
Sense -
Trim
Sense +
Vout +
All dimensions are in inches [mm]
Pin 4 and 8 are dia. 0.062 [1.57]
All other pins are all dia. 0.040 [1.02]
Pin material: Brass
Pin finish: Tin/Lead plated
Heat spreader (baseplate) material:
Aluminum
Weight: 39.5g (1.4oz)
Thermal derating for vertical orientation, Vin=54V
Output
Output Current at 40°C (Amps)
Voltage
200 LFM
300 LFM
(Volts)
NoHeatsink With Heatsink No Heatsink With Heatsink
3.3
2.5
1.8
1.5
12.0
5.0
32
35
39
41
8.0
16
40
45
50
50
12
25
35
37
42
46
10.0
21
40
45
50
50
12
25
Output Current at 60°C (Amps)
200 LFM
300 LFM
No Heatsink With Heatsink No Heatsink With Heatsink
28
30
33
37
6.0
13
40
45
50
50
12
25
30
32
38
41
8.0
16
40
45
50
50
12
25
The information and specifications contained in this brief are believed to be accurate and reliable at the time of publication. Specifications are
subject to change without notice. Refer to product specification sheet for performance characteristics and application guidelines.
Broadband TelCom Power, Inc. –
1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: sales@btcpower.com
PB HQ Rev3 16-1-04
BTCPOWER [ BROADBAND TELCOM POWER, INC. ]
