B0503S-1WR3
MORNSUN B0503S-1WR3 (Isolated DC-DC Power Module) is suitable for system regulation, battery charging and power conversion. Genuine original, guaranteed; electrical characteristics and pin-out/package are per the official Datasheet. Contact us for pricing, samples and available stock.
- Package
- SIP-4
Product overview
MORNSUN B0503S-1WR3 (Isolated DC-DC Power Module) is suitable for system regulation, battery charging and power conversion. Genuine original, guaranteed; electrical characteristics and pin-out/package are per the official Datasheet. Contact us for pricing, samples and available stock.
- Manufacturer
- MORNSUN
- Part number
- B0503S-1WR3
- Category
- DC-DC Isolated Power Modules
- Package
- SIP-4
- Condition
- New & Original
- Compliance
- RoHS Compliant
- Lifecycle
- Confirm with manufacturer
- Lead time / MOQ
- Confirm with quotation
Technical parameters
35 parametersConstruction
- (full load / no-load) Other output
- 70/18
- 3.3VDC output
- 271/8
- 5VDC output
- 244/8
- 9VDC/12VDC/15VDC output
- 41/12
- 24VDC output
- 41/18
- 12V input 5VDC/9VDC/12VDC output
- 105/8
- 15VDC/24VDC output
- 103/8
- 5VDC/9VDC/12VDC output
- 84/8
- 9VDC output
- 53/8
- 12VDC/15VDC/24VDC output
- 52/8
- 3.3VDC input
- 5
- 5VDC input
- 9
- 15VDC input
- 21
- 24VDC input
- 30
- Other output
- 1.2
- 3.3VDC input 3.3VDC output
- 12
- 10%-100% load Other output
- 8
- 5VDC input 9VDC output
- 8
- 10%-100% load 12VDC output
- 7
- 15VDC output
- 6
- 12VDC/15VDC/24VVDC input 9VDC output
- 3
- Soldering spot is 1.5mm away from case for 10 seconds
- 300
- 5V input
- 95
- Vibration 3.3V/12V/15V/24V input
- 5G, 0.75mm. al
- MTBF MIL-HDBK-217F @ 25℃
- 3500 hours
Performance
- Input Current 3.3VDC output
- 84/10
- Reflected Ripple Current
- 15
- Surge Voltage(1sec. max.) 12VDC input
- 18 DC
- Temperature Coefficient Full load
- ±0.02 ℃
- Insulation Resistance Input-output resistance at 500VDC
- 1000 MΩ
- Operating Temperature
- 105
- Storage Temperature
- 125 ℃
- Case Temperature Rise Ta=25℃
- 25
- 3.3V input, full load, nominal input voltage
- 220
- 12V/15V/24V input, full load, nominal input voltage
- 260
Specifications & documentation
Use the official manufacturer documentation to verify electrical characteristics, package dimensions and operating limits before design approval.
Frequently asked questions
Common pre-quotation questions and selection notes to help you verify key parameters and sourcing before requesting a quote.
How do I verify the part is genuine / avoid counterfeit?
Buy only from authorized or franchised channels. On receipt, check: (1) laser-etched markings that solvent will not remove; (2) batch / lot code consistent between label and device; (3) original reel or tube packaging; (4) request traceability documents (CoC, date code). For critical parts, third-party X-ray / decapsulation testing is recommended.
How do I read the markings / date code on a chip?
Most active ICs use a 4-digit date code YYWW (year + week, e.g. 2345 = 2023 week 45). The top mark is manufacturer logo + base part number + lot code. For SMD code lookup, search by "marking code + package" on AllDataSheet / Octopart / LCSC.
What does the package code mean (TO-220, SOT-23, QFP…)?
Package codes describe the physical form factor and pin layout — critical when sourcing, because electrically equivalent parts in different packages will not fit the PCB. Common: TO-220 (3-terminal power), SOT-23 (3-pin small signal), DIP / SOIC (through-hole / SMD ICs), QFP / QFN (MCUs, processors).
What if my original model is discontinued (EOL / NRND)?
Three options: (1) the manufacturer’s recommended replacement; (2) franchised distributor legacy stock; (3) a functionally compatible cross-brand part — provided pinout and key parameters match. Always evaluate on a real board before mass swap.
What is the minimum order quantity (MOQ) and lead time?
We support both sample and volume orders. Minimum order quantity, stock availability and lead time are confirmed per inquiry — tell us your model and quantity and we will quote. Sample quantities for design validation are supported.
Can I get the datasheet and samples?
The full datasheet is linked on this page. For parts without a direct datasheet, we can locate the manufacturer document on request. Sample requests are supported — contact us with your model and quantity.
Request confirmation of current stock, date code, packaging, price and delivery terms. Product information does not constitute a binding offer; final specifications are confirmed with your quotation.