B0509S-1WR3 reference image
Reference image 4

B0509S-1WR3

1 W fixed-input isolated unregulated DC-DC converter with 5 V input and 9 V single output

Series
B_S-1WR3
Package
4-pin SIP module, 11.60 mm × 6.00 mm × 10.16 mm
Temperature
-40°C to +105°C with derating
Specifications

Key details

Part NumberB0509S-1WR3
ManufacturerMORNSUN
CategoryIsolated DC-DC Converter
Lifecycle StatusProduction
SeriesB_S-1WR3
Package / Case4-pin SIP module, 11.60 mm × 6.00 mm × 10.16 mm
Pin Count4
Operating Temperature-40°C to +105°C with derating
Last Verified2026-07-26
Overview

Part information

B0509S-1WR3 Overview

B0509S-1WR3 is a MORNSUN 1 W fixed-input isolated unregulated DC-DC converter with 5 V input and 9 V single output supplied in 4-pin SIP module, 11.60 mm × 6.00 mm × 10.16 mm. This page uses the exact orderable code because package, grade, temperature and option suffixes can change compatibility.

Key Technical Specifications

Rated Power1 W
Input Voltage5 V nominal (4.5 to 5.5 V)
Output Voltage9 V DC, single unregulated output
Maximum Output Current111 mA
Isolation Test Voltage1500 V DC

Package and Ordering Notes

The listed package is 4-pin SIP module, 11.60 mm × 6.00 mm × 10.16 mm with 4 pins, leads, lands or contacts. The featured image is a generic package illustration for form-factor identification and is not an actual date-code or lot photograph. The part or family is listed by MORNSUN as Production at the verification date.

Sourcing Guidance

Confirm current factory status, exact orderable suffix, packing format and lead time for B0509S-1WR3. Do not substitute a nearby family code without checking all electrical and package limits.

For an accurate quotation, include the full MPN, target quantity, acceptable date-code range, packaging format and destination. Icearth can help review traceability documents, label photos and electrical/package alignment before order placement.

Manufacturer Documentation

Technical values were checked against MORNSUN documentation. Use the linked datasheet as the controlling source and re-check revisions before PCB release or firmware qualification.

B0509S-1WR3 FAQ

What is B0509S-1WR3?

B0509S-1WR3 is a MORNSUN 1 W fixed-input isolated unregulated DC-DC converter with 5 V input and 9 V single output. It belongs to the B_S-1WR3 series.

What are the key specifications of B0509S-1WR3?

Rated Power is 1 W, and Input Voltage is 5 V nominal (4.5 to 5.5 V). Use the manufacturer datasheet for limits and test conditions.

What package does B0509S-1WR3 use?

B0509S-1WR3 uses 4-pin SIP module, 11.60 mm × 6.00 mm × 10.16 mm with 4 pins or leads. Verify the exact footprint and packing suffix before PCB or purchasing release.

Is B0509S-1WR3 still in production?

B0509S-1WR3 was listed in the manufacturer’s current Production or active product catalog when verified on 2026-07-26. Confirm factory status and lead time before ordering.

What should be checked before sourcing B0509S-1WR3?

Confirm the complete MPN, electrical ratings, package, temperature grade and packing format. Closely related series members can have different voltage, gain or output ratings and are not automatically interchangeable.

How B0509S-1WR3 differs from related orderable parts

B0509S-1WR3 belongs to the B_S-1WR3 family. Compared with B0505S-1WR3, the recorded differences include functional description: 1 W fixed-input isolated unregulated DC-DC converter with 5 V input and 9 V single output versus 1 W fixed-input isolated unregulated DC-DC converter with 5 V input and 5 V single output; Output Voltage: 9 V DC, single unregulated output, a higher recorded value than 5 V DC, single unregulated output; and Maximum Output Current: 111 mA, a lower recorded value than 200 mA. A shared family name does not establish pin, firmware or qualification compatibility.

Part numberRecorded functionPackagePins / contactsTemperatureLifecycle
B0509S-1WR31 W fixed-input isolated unregulated DC-DC converter with 5 V input and 9 V single output4-pin SIP module, 11.60 mm × 6.00 mm × 10.16 mm4 pins, leads or contacts-40°C to +105°C with deratingProduction
B0505S-1WR31 W fixed-input isolated unregulated DC-DC converter with 5 V input and 5 V single output4-pin SIP module, 11.60 mm × 6.00 mm × 10.16 mm4 pins, leads or contacts-40°C to +105°C with deratingProduction
B0512S-1WR31 W fixed-input isolated unregulated DC-DC converter with 5 V input and 12 V single output4-pin SIP module, 11.60 mm × 6.00 mm × 10.16 mm4 pins, leads or contacts-40°C to +105°C with deratingProduction
B1205S-1WR31 W fixed-input isolated unregulated DC-DC converter with 12 V input and 5 V single output4-pin SIP module, 11.60 mm × 6.00 mm × 10.16 mm4 pins, leads or contacts-40°C to +105°C with deratingProduction

For an RFQ or AVL review, quote the complete B0509S-1WR3 code and verify the manufacturer ordering table, package drawing, packing method and revision. The related numbers above are comparison references, not declared drop-in replacements.

Exact order-code identity for B0509S-1WR3

For BOM, label, AVL and RFQ matching, preserve these visible code segments: opening alphabetic sequence B; middle numeric sequence zero five zero nine; middle alphabetic sequence S; middle numeric sequence one; middle alphabetic sequence WR; and terminal numeric sequence three. The nearest published comparison codes are B0505S-1WR3; B0512S-1WR3; and B1205S-1WR3. Compare every segment because a changed character can identify a different density, voltage, package, temperature, qualification or packing option.

Do not shorten the requested code to B_S-1WR3 or remove its terminal characters. Ask the supplier to reproduce the complete code on the quotation and provide label or traceability evidence when exact suffix matching is mandatory.

B0509S-1WR3 specification interpretation

The following notes interpret the recorded values for this exact orderable code. They are intended to make model-to-model differences visible during engineering and procurement review; the manufacturer datasheet remains the controlling source.

  • Rated Power: The recorded value is 1 W, expressed in words as one W. Check steady-state, transient and thermal margin in the intended operating mode.
  • Input Voltage: The recorded value is 5 V nominal (4.5 to 5.5 V), expressed in words as five V nominal (four point five to five point five V). Check rail compatibility, tolerance and sequencing under worst-case conditions.
  • Output Voltage: The recorded value is 9 V DC, single unregulated output, expressed in words as nine V DC, single unregulated output. Check rail compatibility, tolerance and sequencing under worst-case conditions. The comparison record for B0505S-1WR3 lists 5 V DC, single unregulated output; this page therefore preserves 9 V DC, single unregulated output as the value associated with B0509S-1WR3.
  • Maximum Output Current: The recorded value is 111 mA, expressed in words as one hundred eleven mA. Check steady-state, transient and thermal margin in the intended operating mode. The comparison record for B0505S-1WR3 lists 200 mA; this page therefore preserves 111 mA as the value associated with B0509S-1WR3.
  • Isolation Test Voltage: The recorded value is 1500 V DC, expressed in words as one thousand five hundred V DC. Check rail compatibility, tolerance and sequencing under worst-case conditions.
Sourcing notes

Lifecycle and sourcing review

Production

Lifecycle information is shown for reference. Confirm current manufacturer documentation, availability and technical suitability before purchase.

Confirm current factory status, exact orderable suffix, packing format and lead time for B0509S-1WR3. Do not substitute a nearby family code without checking all electrical and package limits.