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B1203S-1WR3 - Mornsun Power

Description: DC DC CONVERTER 3.3V 1W

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PCB Footprints
B1203S-1WR3 - Mornsun Power PCB footprint - Other - Other - B1203S-1WR3-1
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3D Models
B1203S-1WR3 - Mornsun Power  - 3D model - Other - B1203S-1WR3-1
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B1203S-1WR3 Details

  • Manufacturer Part Number:

    B1203S-1WR3

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    MODULE-4

  • ECCN Code:

    EAR99

  • Manufacturer:

    MORNSUN

  • YTEOL:

    5.9

  • Analog IC - Other Type:

    DC-DC UNREGULATED POWER SUPPLY MODULE

  • Approvals:

    CB, CE, EN, IEC, UKCA, UL

  • Efficiency (Main Output):

    75%

  • Input Voltage-Max:

    13.2 V

  • Input Voltage-Min:

    10.8 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PSMA-T4

  • Length:

    11.6 mm

  • Line Regulation-Max:

    1.5%

  • Load Regulation-Max:

    20%

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    4

  • Operating Temperature-Max:

    105 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    0.303 A

  • Output Voltage-Nom:

    3.3 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SMA

  • Package Shape:

    RECTANGULAR

  • Package Style:

    MICROELECTRONIC ASSEMBLY

  • Peak Reflow Temperature (Cel):

    NOT SPECIFIED

  • Protections:

    OUTPUT OVER CURRENT

  • Ripple Voltage (Main Out):

    0.010605 Vrms

  • Seated Height-Max:

    10.41 mm

  • Surface Mount:

    NO

  • Switching Frequency-Max:

    260 kHz

  • Technology:

    HYBRID

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    SINGLE

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

    NOT SPECIFIED

  • Total Power Output-Max:

    0.9999 W

  • Trim/Adjustable Output:

    NO

  • Width:

    6 mm

B1203S-1WR3 Frequently Asked Questions (FAQs)

  • MORNSUN recommends a 4-layer PCB with a solid ground plane and a separate layer for the input and output voltage lines to minimize noise and EMI. A sample PCB layout is available upon request.
  • While the B1203S-1WR3 is rated for operation up to 85°C, it's recommended to derate the output power by 2.5% per degree above 70°C to ensure reliable operation. Consult MORNSUN for custom high-temperature solutions.
  • MORNSUN recommends following the CISPR 22 Class B standard for EMC compliance. Use a metal enclosure, add EMI filters, and ensure proper grounding and shielding to minimize emissions and susceptibility.
  • The MTBF of the B1203S-1WR3 is approximately 2.5 million hours, calculated according to MIL-HDBK-217F. This value is based on a 40°C ambient temperature and 50% load condition.
  • Yes, the B1203S-1WR3 can be used in redundant or parallel configurations, but it's essential to ensure proper synchronization and current sharing to prevent oscillations and damage. Consult MORNSUN for application notes and guidance.

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B1203S-1WR3 Overview

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