150W DIP Type High Input DC/DC Converter : DHQB150

DHQB150 - 150 Watts Quarter Brick Type 2:1 High Input Voltage Isolated DC - DC Converters


Regulated Output DC-DC Converter- Isolation - Module

Our DHQB150 series is fire & smoke EN45545-2 and shock & vibration EN50155 (EN61373) compliant. The dimension is 2.28" x 1.45" x 0.5" meet industrial standard quarter brick size. They provide a 300Vdc nominal input (with an input range of 180 to 425Vdc) and 3000VAC reinforced isolation, which are suitable for distributed power architectures, telecommunications, servers, base station, battery operated equipment, and industrial applications.
  • Efficiency Up to 89%
  • Fixed Switching Frequency
  • Regulated Outputs
  • Remote On/Off
  • Low No Load Power Consumption
  • Fully Protected (OTP/OCP/OVP/UVLO)
  • 3000Vac I/O Isolation
  • Operating Case Temperature -40 to +105℃
  • -55℃ Operating Available
  • Quarter Brick Size Meet Industrial Standard 2.28" x 1.45" x 0.5"
  • Shock & Vibration MIL-STD-810F Compliant
  • Fire & Smoke EN45545 Compliant
  • 2000m Operating Altitude
Input Voltage Range Nominal 300V Range: 180-425V
Voltage Accuracy ± 1% max.
Transient Response 75%-100% step load change
Error Band ...±5% Vout
Recover Time ... < 250 µs
External Trim Adj. Range +10%, -20%
R&N (20MHz BW Note3) 5V......................... 60mV RMS, 100mV pk-pk, max.
12V&15V ............ 60mV RMS, 150mV pk-pk max.
24V&28V ............ 100mV RMS, 280mV pk-pk max.
48V ...................... 200mV RMS, 480mV pk-pk max.
Temperature Coefficient ± 0.02% / °C max.
Short Circuit Protection Continuous
Line Regulation(note 1) ± 0.2% max
Load Regulation(note 2) ± 0.2% max
O.V.P. Trip Range, % Vo nom 115% ~ 140%
Current Limit 110% ~ 160% Nominal Output
Start up Time 280ms typ.
Isolation Voltage Input/Output : 3000VAC min.
Input/Case : 2500VAC min.
Output/Case : 500VAC min.
Isolation Resistance 100M Ω min.
Switching Frequency 360 KHz Tpy.
Operating Case Temperature -40°C to 105°C
Storage Temperature -55°C to 105°C
Thermal Shutdown, Case Temperature. 110°C Typ.
Humidity 95% RH max. Non Condensing
MTBF MIL-HDBK-217F, GB, 25℃, Full Load … 48V... 1000Khrs typ.;Others … 800Khrs typ.
Case Material Aluminum Base Plate with Plastic Case
Dimensions 2.28×1.45x0.50 inches(57.9x36.8×12.7 mm)
Weight 65g

Model No. I/P Vol. O/P Vol. O/P Current O/P Watts (max.)
DHQB150-C1xyz 180-425 VDC 5.00V 30.0A 150W
DHQB150-C2xyz 180-425 VDC 12.0V 12.5A 150W
DHQB150-C3xyz 180-425 VDC 15.0V 10.0A 150W
DHQB150-C9xyz 180-425 VDC 24.0V 6.3A 150W
DHQB150-C9Cxyz 180-425 VDC 28.0V 5.4A 150W
DHQB150-C9Bxyz 180-425 VDC 48.0V 3.2A 150W

Ordering Information:

  1. x = blank stands for Remote On/Off Logic Positive
    x = N stands for Remote On/Off Logic Negative
    y = blank stands for M3.5x0.5 mounting inserts
    y = C stands for Clear mounting insert (3.2mm DIA)
    z = blank stands for -40~105℃ operating temp.
    z = L stands for -55~105℃ operating temp.
  2. Nominal input voltage 300VDC.
    Measured at 300Vin.
  3. An External input capacitor 150uF for all models are recommended to reduce input ripple voltage.
  4. -55°C start-up screen per MIL-STD105E S1 Sampling Procedure for L Version.
Mechanical Drawing (Unit: mm)


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