25~50W DIP Type DC DC Converter Module : CHB50 Series
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DIP Type DC-DC Converter

25~50W DIP Type DC/DC Converter : CHB50

CHB50 - 25~50 Watts DC/DC Converter with Isolation


DC-DC Converter- isolated DC DC converter - Module

25~50W Isolated Wide Input DC DC Converter Modules meets UL60950-1, EN60950-1, IEC60950-1, CE Mark 2006/95/EC, 93/68/EEC, and 89/336/EEC.
  • 25-50W Isolated Output
  • Regulated Outputs
  • Efficiency to 89%
  • 2:1 Input Range
  • Half-Brick size meet industrial standard
Input Voltage Range See Model List
Undervoltage Lockout 12Vin power up ...8.8V ; power down ... 8V
24Vin power up ... 17V ; power down ... 16V
48Vin power up ... 34V ; power down ... 32.5V
Positive Logic Remote On/Off³⁴  
Input Filter PI Type
Voltage Accuracy ± 1% max.
Transient Response 25% step load change ... < 500 μs
External Trim Adj. Range ± 10%
Ripple & Noise (20MHz BW) 2.5V & 3.3V & 5V... 75 mV pk-pk max.
12V & 15V... 100 mV pk-pk max.
24V... 240 mV pk-pk max.
Temperature Coefficient ± 0.03% / °C max.
Short Circuit Protection Continuous
Line Regulation¹ (HL-LL) ... ± 0.2% max.
Load Regulation² (FL-ZL) ... ± 0.2% max.
OVP Trip Range,% Vo nom 115-140%
Current Limit 110% ~ 150% Nominal Output
Isolation Voltage ... Input/Output ...1500VDC min.
... Input/Case ...1500VDC min.
... Output/Case ...1500VDC min.
Isolation Resistance 10⁷Ω min.
Switching Frequency 12/24Vin ...400 KHz, Typ.
48Vin ........300 KHz, Typ.
Operating Case Temperature -40°C to +100°C
Storage Temperature Range -55°C to +105°C
Thermal Shutdown,Case Temp. 100°C Typ.
Case Material Aluminum

Model No. I/P Vol. O/P Vol. O/P Current O/P Watts (max.)
CHB50-12S05 9~18VDC 5.00 VDC 10.0A 50W
CHB50-12S12 9~18VDC 12.0 VDC 4.16A 50W
CHB50-12S15 9~18VDC 15.0 VDC 3.33A 50W
CHB50-12S24 9~18VDC 24.0 VDC 2.08A 50W
CHB50-12S25 9~18VDC 2.50 VDC 10.0A 25W
CHB50-12S33 9~18VDC 3.30 VDC 10.0A 33W
CHB50-24S05 18-~36VDC 5.00 VDC 10.0A 50W
CHB50-24S12 18-~36VDC 12.0 VDC 4.16A 50W
CHB50-24S15 18-~36VDC 15.0 VDC 3.33A 50W
CHB50-24S24 18-~36VDC 24.0 VDC 2.08A 50W
CHB50-24S25 18-~36VDC 2.50 VDC 10.0A 25W
CHB50-24S33 18-~36VDC 3.30 VDC 10.0A 33W
CHB50-48S05 36-~75VDC 5.00 VDC 10.0A 50W
CHB50-48S12 36-~75VDC 12.0 VDC 4.16A 50W
CHB50-48S15 36-~75VDC 15.0 VDC 3.33A
CHB50-48S24 36-~75VDC 24.0 VDC 2.08A 50W
CHB50-48S25 36-~75VDC 2.50 VDC 10.0A 25W
CHB50-48S33 36-~75VDC 3.30 VDC 10.0A 33W

Ordering Information:

  1. Measured from high line to low line.
  2. Measured from full load to zero load.
  3. Logic compatibility ... Open Collector ref, to - Input
    Module ON ... Open circuit
    Module OFF ... <0.8VDC
  4. Suffix"N" to the Model# with Negative Logic Remote ON/OFF
  5. Output ripple and noise measured with 10uF tantalum and 1µF Ceramic capacitor across output.
  6. Suffix"-C" to the Model no. with Clear Mounting Insert (3.2mm DIA.)
Mechanical Drawing (Unit: mm)