TDK-Lambda LS50-5 Switch Mode Power Supply - LS50-5

The TDK-Lambda LS50-5 belongs to the manufacturer's LS50 series of single output AC-DC power suppl...

Best current price£21.34from RS Components Ltd- UK

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RS Components Ltd- UKTDK-Lambda Switching Power Supply, LS25-5, 5V dc, 5A, 25W, 1 Output, 125 → 373 V dc, 88 → 264 V ac Input
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Rapid Online - Rapid Electronics Ltd.TDK-Lambda LS25-24 Chassis Mount Power Supply
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eBayTDK-Lambda Chassis Mount Power Supply
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Product Information

Full details

The TDK-Lambda LS50-5 is a reliable, high-efficiency single-output power supply designed for industrial professionals and automation engineers who require consistent 5V DC power. Delivering 50W of power with a universal AC input, it is ideal for factory automation, LED lighting, and testing equipment; however, users should note that operating temperatures may require de-rating depending on the specific environmental conditions.

All features

Model Part NumberLS50-5
BrandTDK-Lambda

Extended Product Information

FAQs

Does the LS50-5 require active cooling?

No, the unit is convection-cooled and does not require a fan.

Can I adjust the output voltage?

Yes, there is a built-in potentiometer that allows for a 10% adjustment of the output.

Is this power supply suitable for outdoor use?

It is designed for industrial enclosures, but you must ensure the enclosure is weatherproof and properly ventilated.

What is the MTBF of this device?

The LS50-5 has a high MTBF rating of 700,000 hours.

What safety standards does it meet?

It complies with UL 60950-1, EN 60950-1, and IEC 60950-1 standards.

What is the maximum output current?

The unit provides a maximum of 10A at 5V DC.

Troubleshooting

No output voltage detected

Check input power connection and ensure the AC source is within the 88-264V range.

Output voltage is slightly off 5V

Use the built-in potentiometer to fine-tune the output to exactly 5V DC.

Unit shuts down under load

Verify that the total load does not exceed 50W and ensure adequate ambient airflow.

Pros and Cons

Pros

  • Extremely reliable with high MTBF
  • Universal AC input range
  • Quiet convection cooling design
  • Adjustable output voltage
  • Compact and durable build

Cons

  • Requires careful thermal management/de-rating
  • Single output only
  • Not suitable for extreme high-heat environments without ventilation

Setup, Compatibility & Care

Ensure the power supply is mounted in an orientation that allows for adequate airflow, as it relies on natural convection cooling. While it accepts a wide range of input voltages, always verify that your local supply is within the 88-264V AC specification. To maintain performance, clean dust accumulation from the chassis periodically to prevent heat buildup. Always monitor the temperature in your enclosure, as the unit may require electrical load de-rating if the ambient temperature exceeds the manufacturer's specified thresholds.

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