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DHS250B12 - Cosel

Description: Cosel PCB Mount 252W Isolated DC-DC Converter, Vin 200 → 400 V dc, I/O isolation 3 kV ac, 500 V dc, Vout 12V dc

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PCB Footprints
DHS250B12 - Cosel PCB footprint - Other - Other - DHS250B12-1
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3D Models
DHS250B12 - Cosel  - 3D model - Other - DHS250B12-1
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DHS250B12 Details

  • Manufacturer Part Number:

    DHS250B12

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Not Recommended

  • ECCN Code:

    EAR99

  • Manufacturer:

    Cosel USA Inc

  • YTEOL:

    3

  • Analog IC - Other Type:

    DC-DC REGULATED POWER SUPPLY MODULE

  • Approvals:

    CE, CUL, C-UL-US, EN, IEC, TUV, UKCA, UL

  • Efficiency (Main Output):

    88%

  • Input Voltage-Max:

    400 V

  • Input Voltage-Min:

    200 V

  • Input Voltage-Nom:

    280 V

  • JESD-30 Code:

    R-XDMA-P8

  • Length:

    61 mm

  • Line Regulation-Max:

    0.2%

  • Load Regulation-Max:

    0.2%

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    100 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    21 A

  • Output Voltage-Max:

    13.2 V

  • Output Voltage-Min:

    7.2 V

  • Output Voltage-Nom:

    12 V

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    DMA

  • Package Equivalence Code:

    MODULE,8LEAD,1.9

  • Package Shape:

    RECTANGULAR

  • Package Style:

    MICROELECTRONIC ASSEMBLY

  • Peak Reflow Temperature (Cel):

    260

  • Protections:

    OVER CURRENT; OVER VOLTAGE

  • Ripple Voltage (Main Out):

    0.10605 Vrms

  • Screening Level:

    EN 62368-1

  • Seated Height-Max:

    13.2 mm

  • Surface Mount:

    NO

  • Technology:

    HYBRID

  • Terminal Form:

    PIN/PEG

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    15

  • Total Power Output-Max:

    252 W

  • Trim/Adjustable Output:

    YES

  • Warm-up Time:

    0.2 s

  • Width:

    58.4 mm

DHS250B12 Frequently Asked Questions (FAQs)

  • Cosel recommends a PCB layout with a large copper area for heat dissipation, and a thermal management system with a heat sink and thermal interface material to keep the junction temperature below 100°C.
  • To ensure reliable start-up and shutdown, Cosel recommends a soft-start circuit to limit inrush current, and a shutdown circuit with a voltage supervisor to prevent voltage drops during power-down.
  • The DHS250B12 is designed to meet CISPR 11 Class B and FCC Part 15 Class B emissions standards. To minimize EMI and RFI, Cosel recommends using a metal enclosure, proper cable shielding, and filtering components.
  • The DHS250B12 is rated for operation up to 5,000 meters (16,400 ft) and 50°C ambient temperature. For high-altitude or high-temperature applications, Cosel recommends derating the output power and consulting with their application engineers.
  • The MTBF of the DHS250B12 is calculated to be approximately 550,000 hours at 40°C ambient temperature, based on MIL-HDBK-217F reliability prediction methodology.

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DHS250B12 Overview

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