Product Images are shown for illustrative purposes only and may differ from actual product.

B1203S-1WR3 Mornsun Isolated DC - DC Converter

  • Stock: 48

    Availability: InStock priceValidUntil: 2026-03-03

  • Brand: Mornsun
  • SKU: 4022 | DAG763

Availability: InStock priceValidUntil: 2026-03-03

  • Rs. 179.36 (inc GST)
    Rs.152.00 + GST

    Qty :

GST Invoice: Available for all purchases — eligible for input tax credit.

Delivery: 2–8 days across India. No MOQ required.

Bulk Orders: Need more quantity or not in stock? Email: dnatechindia [at] gmail.com

Import Service: We import a wide range of electronic components on request.

B1203S-1WR3 Mornsun Isolated DC - DC Converter

B1203S-1WR3 Mornsun Isolated DC - DC Converter

This B1203S-1WR3 from Mornsun is a 12 Volts to 3 Volts DC-DC Converter 1W Power Supply Module - Compact SIP Package from Mornsun is specially designed for applications where an isolated voltage is required in a distributed power supply system. They are suitable for: pure digital circuits, low frequency analog circuits, relay-driven circuits and data switching circuits.

DNA solutions, Nashik has various types of Power Mornsun 's. Check out our complete collection of  Mornsun's Power Modules.

If you are in Nashik you can buy this Electronic Component at our local shop at New CBS, Nashik or you can place order online and get it delivered at your doorstep anywhere in India.

Features of B1203S-1WR3 Mornsun Isolated DC - DC Converter

  • Operating temperature range: -40℃ to +105℃
  • High efficiency up to 81%
  • Continuous short-circuit protection
  • No-load input current as low as 8mA
  • I/O Isolation Test voltage:1.5K VDC/min
  • Industry standard pin-out
  • Compact SIP package

Specifications of Mornsun B1203S-1WR3

  • Model Number:B2403S-1WR3
  • Isolation Voltage:1.5  kVdc/min
  • Input Voltage range:21.6-26.4 Vdc
  • Nominal voltage:12 Volt dc
  • Output voltage: 3 Volts
  • Output current:42/5(mA)
  • Wattage:1W
  • Package: SIP
  • Size:11.60mm(Length) X 6.00mm(Width) X 10.16mm (Height)
  • Weight:1.3gm

Related Links

Package Includes

  • 1 x B1203S-1WR3 Mornsun Isolated DC - DC Converter

Extra Information
Country of Origin China
Imported By ElectroSource Private Limited

Reviews (3)

Write a review

Note: HTML is not translated!
    Bad           Good

Frequently Asked Questions

Do you provide a GST bills?
Yes we provide GST Bill by the name of DNA Solutions. You will receive a GST compliant invoice for your records. You can take GST benefit.
What is your return / replacement policy?
Returns/replacements depend on the item type and condition. If there’s an issue, contact us with photos/videos and we’ll guide you as per policy.
Do you ship all over India?
Yes — we dispatch orders across India.
What payment methods do you accept?
We accept UPI, cards, netbanking, and other checkout options shown on the payment page.
What details should I send for a bulk quote?
Send these details for an accurate bulk quote: - Part number(s) - Quantity required - Preferred brand (if any) - Product image (if possible) - Delivery address + PIN code - GST invoice needed (Yes/No) + GSTIN (if Yes)
Are components original / new?
We aim to supply genuine, new parts. For sourced items, we confirm availability and provide the best matching grade/brand possible.

NEW Products

Product Page : New Products

CSN-AZXK WITH SWITCH

CSN-AZXK Current Sensor Module with Switch CSN-AZXK Current Sensor Module, measures low to medium c..

Rs.2,230.20 (inc GST)
Rs.1,890.00 + GST

SKU: 9829 | DAC528
Stock: 5

XL2596 3.3Volt PWM Stepdown DC/DC Buck Converter TO-220-5 IC

XL2596 3.3V PWM Stepdown DC/DC Buck Converter ICXL2596 3.3V DC/DC Buck Converter for efficient volta..

Rs.46.14 (inc GST)
Rs.39.10 + GST

SKU: 7253 | DAF751
Stock: 150

Keltron Supercapacitor 500 Farad 2.7 Volts EDLC

Keltron Supercapacitor 500 Farad EDLC Energy StorageKeltron 500F 2.7V Supercapacitor - High power de..

Rs.2,495.70 (inc GST)
Rs.2,115.00 + GST

SKU: 10265 | DAJ149
Stock: 5

CD4081 AND Gate

CD4081 Quad AND Gate ICCH4081 Quad 2 input AND Gate ICThe CD4081 is a quad 2-input AND gate. The out..

Rs.27.14 (inc GST)
Rs.23.00 + GST

SKU: 1998 | DAA135
Stock: 8

Have You Seen

Product Page : Have You Seen

IRFB260N Power MOSFET

IRFB260N Power MOSFET by DNA SolutionsIRFB260N Power MOSFET, Low Gate-to-Drain Charge, 380W Power Di..

Rs.152.22 (inc GST)
Rs.129.00 + GST

SKU: 1155 | DAA179
Stock: 44

Mornsun URA2405YMD-6WR3 DC-DC Converter Module

Mornsun URA2405YMD-6WR3 DC-DC Converter ModuleMornsun URA2405YMD-6WR3 offers DC-DC conversion with 5..

Rs.758.56 (inc GST)
Rs.642.85 + GST

SKU: 10570 | DAJ642
Stock: 10

IR Sensor Dispenser Board 8-24 Volts

IR Sensor Based Dispenser Board (8 - 24 Volts)IR Sensor based Dispenser Board for Automatic Hand San..

Rs.501.50 (inc GST)
Rs.425.00 + GST

SKU: 2537 | DAC850
Stock: 10

ACS712 30 Amp Current Sensor Module

ACS712 30 Amp Current Sensor ModuleACS712 30 Ampere Hall effect current Sensor Module This is a..

Rs.82.60 (inc GST)
Rs.70.00 + GST

SKU: 902 | DAA682
Stock: 10

Related Products

Mornsun B0524S-1WR3 24V Isolated DC-DC Converter SMPS

Mornsun B0524S-1WR3 24V Isolated DC-DC Converter SMPS

Mornsun B0524S-1WR3 24V Isolated DC-DC Converter Mornsun B0524S-1WR3 24V DC-DC Converter with 1W ou..

Rs.160.48 (inc GST)
Rs.136.00 + GST

SKU: 3917 | DAG622
Stock: 30
B1203S-1WR3 Mornsun Isolated DC - DC Converter

B1203S-1WR3 Mornsun Isolated DC - DC Converter

B1203S-1WR3 Mornsun Isolated DC - DC ConverterB1203S-1WR3 Mornsun Isolated DC - DC ConverterThis&nbs..

Rs.179.36 (inc GST)
Rs.152.00 + GST

SKU: 4022 | DAG763
Stock: 48
HT1620 LQFP64 RAM Mapping 32X4 LCD Controller for I/O MCU

HT1620 LQFP64 RAM Mapping 32X4 LCD Controller for I/O MCU

Mornsun SW062R08E8T Power MOSFET SW062R08E8T MOSFET with low RDS(ON) of 5.9mΩ and low gate charge of..

Rs.192.75 (inc GST)
Rs.163.35 + GST

SKU: 5092 | DAG845
Stock: 10
PWB2405ZP-3WR2 Mornsun  DC to DC Wide Input Converter

PWB2405ZP-3WR2 Mornsun DC to DC Wide Input Converter

Mornsun PWB2405ZP-3WR2 DC to DC Wide Input Converter PWB2405ZP-3WR2 DC to DC Converter with 4:1 inpu..

Rs.1,150.50 (inc GST)
Rs.975.00 + GST

SKU: 6067 | DAG895
Stock: 4
LMC6484IM/NOPB CMOS Amplifier 4 Circuit Rail-to-Rail 14-SOIC SMD IC

LMC6484IM/NOPB CMOS Amplifier 4 Circuit Rail-to-Rail 14-SOIC SMD IC

LMC6484IM/NOPB CMOS Operational Amplifier LMC6484IM/NOPB Op-Amp with rail-to-rail capability, low p..

Rs.371.70 (inc GST)
Rs.315.00 + GST

SKU: 7081 | DAG627
Stock: 0
PN6005SSC-R1 AD-DC BUCK CONVERTER IC

PN6005SSC-R1 AD-DC BUCK CONVERTER IC

PN6005SSC-R1 AD-DC BUCK CONVERTER ICPN6005SSC-R1 AD-DC BUCK/BUCK-BOOST CONVERTER ICThe PN6..

Rs.76.70 (inc GST)
Rs.65.00 + GST

SKU: 7328 | DAG364
Stock: 10
A2405S-1WR3 DC to DC Converters SIP-5 MORNSUN

A2405S-1WR3 DC to DC Converters SIP-5 MORNSUN

Mornsun A2405S-1WR3 DC to DC Converter SIP-5 A2405S-1WR3 DC to DC Converter, 1W output, 24V to 5V c..

Rs.210.63 (inc GST)
Rs.178.50 + GST

SKU: 7397 | DAH229
Stock: 40
MORNSUN LM75-10C052412-15 AC-DC 75W Enclosed Switching Power Supply

MORNSUN LM75-10C052412-15 AC-DC 75W Enclosed Switching Power Supply

Mornsun LM75-10C052412-15 AC/DC 75W Enclosed Power Supply Mornsun LM75-10C052412-15 AC/DC 75W Power..

Rs.2,150.55 (inc GST)
Rs.1,822.50 + GST

SKU: 7513 | DAD950
Stock: 0
MORNSUN A2412S 1WR2 -24V to 12V DC-DC Converter 1W Power Supply Module

MORNSUN A2412S 1WR2 -24V to 12V DC-DC Converter 1W Power Supply Module

Mornsun A2412S 1WR2 DC-DC Converter 1W Power Supply Module Mornsun A2412S-1WR2 -24V to 12V DC-DC Co..

Rs.272.58 (inc GST)
Rs.231.00 + GST

SKU: 7517 | DAE465
Stock: 0
Mornson LM350-12B12 350W Enclosed AC-DC SMPS

Mornson LM350-12B12 350W Enclosed AC-DC SMPS

Mornson LM350-12B12 350W Enclosed AC-DC SMPSMornson LM350-12B12 350W Enclosed AC-DC SMPSThe Mornsun ..

Rs.2,714.00 (inc GST)
Rs.2,300.00 + GST

SKU: 7552 | DAF123
Stock: 0
VRB1205S-6WR3 Mornsun Module

VRB1205S-6WR3 Mornsun Module

VRB1205S-6WR3 Mornsun ModuleVRB1205S-6WR3 Mornsun ModuleVRB1205S-6WR3 Mornsun Module is a high-effic..

Rs.645.11 (inc GST)
Rs.546.70 + GST

SKU: 8955 | DAI245
Stock: 0