# Alternative for Obsolete LED driver LDU5660S500-WD

**URL:** <https://forum.digikey.com/t/alternative-for-obsolete-led-driver-ldu5660s500-wd/42552>\
**Category:** Power Supplies (off-board)\
**Tags:** recom-power, cross-reference, led-drivers\
**Created:** [June 18, 2024, 5:00am UTC](https://forum.digikey.com/t/alternative-for-obsolete-led-driver-ldu5660s500-wd/42552 "2024-06-18T05:00:00Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Brian\_2933](https://avatars.discourse-cdn.com/v4/letter/b/71c47a/32.png) [@Brian\_2933](https://forum.digikey.com/u/Brian_2933)\
**Post date:** [June 18, 2024, 5:00am UTC](https://forum.digikey.com/t/alternative-for-obsolete-led-driver-ldu5660s500-wd/42552/1 "2024-06-18T05:00:00Z")

</div>

[RCD-48-0.50/W](https://www.digikey.com/en/products/detail/recom-power/RCD-48-0-50-W/2768000) from Recom Power is being offered as a replacement for [LDU5660S500-WD](https://www.digikey.com/en/products/detail/xp-power/LDU5660S500-WD/4488557) from XP Power

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[![Image](https://global.discourse-cdn.com/digikey/original/3X/5/b/5bde72e0b906c26c5065656966a5eb311352d931.jpeg)](https://www.digikey.com/en/products/detail/recom-power/RCD-48-0-50-W/2768000)

| MFR PART # | RCD-48-0.50/W |
| --- | --- |
| DIGIKEY PART # | [945-1819-ND](https://www.digikey.com/en/products/detail/recom-power/RCD-48-0-50-W/2768000) |
| MANUFACTURER | Recom Power |
| DESCRIPTION | 500mA 2 ~ 56V Constant Current LED Driver Buck Topology 1 Output |
| DATASHEET | [Click Here](https://recom-power.com/pdf/Lightline_DC-DC/RCD-48.pdf) |

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| Atributes | [RCD-48-0.50/W](https://www.digikey.com/en/products/detail/recom-power/RCD-48-0-50-W/2768000) | [LDU5660S500-WD](https://www.digikey.com/en/products/detail/xp-power/LDU5660S500-WD/4488557) |
| --- | --- | --- |
| Product Status | Active | Obsolete |
| — | — | — |
| DigiKey Programmable | Not Verified | Not Verified |
| Type | Constant Current | Constant Current |
| Topology | Buck | Buck |
| Number of Outputs | 1 | 1 |
| Voltage - Input (Min) | 9V | 9V |
| Voltage - Input (Max) | 60V | 60V |
| Voltage - Output | 2 ~ 56V | 2 ~ 56V |
| Current - Output (Max) | 500mA | 500mA |
| Power (Watts) | 28 W | 28 W |
| Dimming | Analog, PWM | PWM |
| Features | Remote On/Off, OTP, SCP | Remote On/Off, SCP |
| Ratings | - | - |
| Operating Temperature | -40°C ~ 80°C | -40°C ~ 70°C |
| Efficiency | 96% | 97% |
| Termination Style | Wire Leads | Wire Leads |
| Size / Dimension | 1.28 L x 0.66 W x 0.44 H (32.6mm x 16.7mm x 11.1mm) | 1.25 L x 0.80 W x 0.49 H (31.8mm x 20.3mm x 12.5mm) |

To verify this part will work in your application or to view full specifications see the manufacturer datasheet [Data Sheet](https://recom-power.com/pdf/Lightline_DC-DC/RCD-48.pdf)