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HomeProductsPower Supplies - (Board Mount)DC DC ConvertersWRF0505S-1WR2
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WRF0505S-1WR2 - Mornsun America, LLC

Manufacturer Part Number
WRF0505S-1WR2
Manufacturer
Mornsun
Allelco Part Number
32D-WRF0505S-1WR2
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
4,952 pcs available, New & Original
Parts Description
ISOLATED MODULE DC DC CONVERTER
Package
8-SIP Module, 7 Leads
Data sheet
-
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 4952
  • Unit Price: $4.178
  • Subtotal: $0.00

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Add to Cart and Submit RFQ now, we'll contact you immediately.

Quantity Unit Price Ext. Price
1+ $4.178 $4.18
10+ $3.668 $36.68
22+ $3.356 $73.83
110+ $3.095 $340.45
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

WRF0505S-1WR2 Tech Specifications
Mornsun America, LLC - WRF0505S-1WR2 technical specifications, attributes, parameters and parts with similar specifications to Mornsun America, LLC - WRF0505S-1WR2

Product Attribute Attribute Value
Manufacturer Mornsun
Voltage - Output 4 -
Voltage - Output 3 -
Voltage - Output 2 -
Voltage - Output 1 5V
Voltage - Isolation 3 kV
Voltage - Input (Min) 4.5V
Voltage - Input (Max) 9V
Type Isolated Module
Supplier Device Package -
Standard Number 62368-1
Size / Dimension 0.87" L x 0.37" W x 0.47" H (22.0mm x 9.5mm x 12.0mm)
Series WRF_S-1WR2 (1W)
Product Attribute Attribute Value
Power (Watts) 1 W
Package / Case 8-SIP Module, 7 Leads
Package Tube
Operating Temperature -40°C ~ 85°C
Number of Outputs 1
Mounting Type Through Hole
Features Remote On/Off
Efficiency 72%
Current - Output (Max) 200mA
Control Features -
Approval Agency CE, EN, UKCA
Applications ITE (Commercial)

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8504.40.9580

Frequently Asked Questions(FAQ)

How does the WRF0505S-1WR2 compare to other 1W isolated DC-DC converters in terms of efficiency and thermal performance under continuous load?
The WRF0505S-1WR2 achieves 72% efficiency at full rated output (5V/200mA), which is moderate compared to newer high-efficiency designs that often exceed 80%. However, its compact 22.0mm x 9.5mm footprint and through-hole mounting limit heatsinking options, making thermal management critical under sustained operation. In typical commercial environments, this module may require airflow or derating above 60% load to maintain junction temperatures below 85°C. When paired with a 5V logic supply in ITE applications, it offers sufficient headroom for short bursts but should be evaluated alongside alternatives like Mornsun’s KOB series if higher efficiency is required.
What are the key considerations when integrating the WRF0505S-1WR2 into a system requiring remote enable functionality?
The WRF0505S-1WR2 includes a remote On/Off control feature that allows external logic to disable the output by pulling the enable pin low. This is useful for power sequencing in multi-supply systems, but designers must ensure the control signal can source/sink enough current to reliably activate the enable threshold without noise-induced false triggering. Since the module operates from 4.5V–9V input, the enable logic must be compatible with this voltage range unless buffered. Additionally, disabling the module reduces standby losses—important in battery-powered or energy-conscious designs—but introduces startup delay that must align with system initialization timing.
Can the WRF0505S-1WR2 safely operate near its maximum current rating in an ambient temperature of 60°C?
Operating near 200mA output at 60°C ambient requires derating due to reduced thermal margin. With an operating range of -40°C to +85°C and no explicit derating curve provided, conservative practice suggests limiting continuous output to 150–180mA to prevent exceeding internal temperature limits. At 72% efficiency, 200mA draws approximately 1.39W internally, generating heat within the small 12mm-high package. Without active cooling, prolonged full-load operation risks premature aging or failure. For most commercial ITE applications, occasional peaks to 200mA are acceptable, but sustained loads should stay below 180mA.
How does the isolation voltage of 3 kV in the WRF0505S-1WR2 impact safety compliance in end products?
The 3 kV reinforced insulation meets basic safety requirements for SELV (Safety Extra-Low Voltage) circuits in accordance with IEC 62368-1, which supports CE, EN, and UKCA certifications listed for this part. In medical or industrial equipment where reinforced isolation is mandated, this level satisfies typical regulatory thresholds. However, for higher-risk environments requiring 4 kV or more, additional isolation barriers may still be needed upstream or downstream of this module. Designers should verify whether their application classifies the output as functional, basic, or reinforced isolation per local standards.
Is the WRF0505S-1WR2 suitable for use in automotive applications despite being rated for ITE (Commercial) use?
No, the WRF0505S-1WR2 is explicitly qualified for ITE (Information Technology Equipment) and not designed for automotive environments. Automotive systems demand stricter reliability criteria including extended temperature ranges (-40°C to +125°C), vibration resistance, and fault tolerance beyond what this module guarantees. While it may function temporarily in some non-critical vehicle systems, using it outside its specified category introduces liability and compliance risks. For infotainment or auxiliary 5V supplies, automotive-qualified alternatives like Mornsun’s ATE series should be considered instead.
What input voltage ripple specifications should be expected when driving the WRF0505S-1WR2 from an unregulated 5V wall adapter?
Although the datasheet doesn’t specify input ripple tolerance, typical isolated DC-DC converters like the WRF0505S-1WR2 can tolerate moderate input ripple up to 100 mVpp under normal conditions. Driving it from a poorly filtered 5V adapter with ripple exceeding 200 mVpp may cause instability or audible noise due to insufficient bulk capacitance or poor layout coupling. To minimize stress, place 10 µF ceramic and 100 µF electrolytic capacitors close to the input pins, and ensure PCB traces are wide enough to reduce inductive impedance. Excessive ripple could also degrade efficiency below 72%, especially near minimum input voltage (4.5V).
How does the size and pinout of the WRF0505S-1WR2 affect board layout complexity compared to surface-mount alternatives?
The WRF0505S-1WR2 uses a through-hole 8-pin SIP package measuring 22.0 × 9.5 × 12.0 mm, which occupies more board area than equivalent SMT modules of similar power. Its single-row pin configuration simplifies hand soldering and mechanical retention but limits routing density. Compared to modern SMD designs, it offers better thermal dissipation through direct metal contact with the PCB but lacks the miniaturization benefits of chip-scale packaging. For legacy or prototype systems, its footprint is manageable, but high-volume designs may prefer smaller, automated-friendly alternatives unless mechanical robustness is prioritized.
What precautions are necessary when replacing the WRF0505S-1WR2 in an existing design with another manufacturer’s 1W isolated converter?
Substituting any DC-DC converter requires matching at least input/output voltages, output current capability, isolation rating, and physical dimensions. The WRF0505S-1WR2 provides 5V@200mA with 3 kV isolation; replacement parts must meet or exceed these specs. Pin compatibility is critical—many 1W modules use different pinouts (e.g., 7-pin vs. 8-pin). Efficiency differences affect overall system heat, and switching frequency variations may interfere with nearby sensitive analog circuitry. Always validate transient response, EMI emissions, and thermal behavior post-substitution to avoid latent failures in field deployments.

Parts with Similar Specifications

The three parts on the right have similar specifications to Mornsun America, LLC WRF0505S-1WR2

Product Attribute WRF0503S-1WR2 WRF0505S-3WR2 WRF0515S-1WR2 WRF1205S-1WR2
Part Number WRF0503S-1WR2 WRF0505S-3WR2 WRF0515S-1WR2 WRF1205S-1WR2
Manufacturer Mornsun America, LLC Mornsun America, LLC Mornsun America, LLC Mornsun America, LLC
Voltage - Input (Min) - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Power (Watts) - - - -
Standard Number - - - -
Efficiency - - - -
Current - Output (Max) - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Features - - - Simultaneous Sampling
Size / Dimension - - - -
Voltage - Output 4 - - - -
Voltage - Isolation - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Voltage - Output 1 - - - -
Applications - - - -
Series - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Voltage - Input (Max) - - - -
Voltage - Output 3 - - - -
Number of Outputs - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Approval Agency - - - -
Control Features - - - -
Voltage - Output 2 - - - -
Type - - - -

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Customer Reviews

Evaluation: 10 Articles

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
  • QC (Quality Warranty)
  • Payment Support
  • Packaging
  • Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


Strict quality inspection builds a solid foundation for electronic component quality.
  1. Visual inspection
  2. Performance testing and reliability verification
  3. Standardized full-process testing
  4. Precise control of every parameter
We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
Quality Inspection
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Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.
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  • Western-Union
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Contact us if you have any questions.

Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
  • ISO 13485: 2016
  • ISO 14001: 2015
  • ISO 28000: 2007
  • ISO 45001: 2018
  • GB/T 27922-2011
  • SMTA
  • IPC
  • ESD
  • PSMA
WRF0505S-1WR2 Image

WRF0505S-1WR2

Mornsun America, LLC
32D-WRF0505S-1WR2

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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