R1S-0505/HP RECOM Power Power Supply (Other) In Stock
The RECOM Power R1S-0505/HP is a 1 W unregulated DC-DC converter module with a 5 V nominal input (4.5 V to 5.5 V range), 5 V output, and 15% load regulation in a compact 5-lead DMA package for isolated auxiliary power. From $3.20 in stock worldwide shipping.
- Manufacturer
- RECOM Power
- Package
- Other
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- R1S-0505/HP Datasheet PDF
- Category
- Power Supply
- Temp Range
- -40.0°C to 100.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1 W isolated 5 V to 5 V DC-DC conversion in a compact 5-lead DMA through-hole module
- 4.5 V to 5.5 V wide input tolerance accommodates USB and regulated 5 V rail variations
- Unregulated design with 15% load regulation minimizes internal complexity for cost-sensitive isolation barriers
- RoHS-compliant and REACH-compliant construction for global market compliance
Applications
The R1S-0505/HP is used to provide isolated 5 V auxiliary power across galvanic isolation barriers in RS-232 and RS-485 interface circuits, optocoupler gate-driver supplies, and industrial I/O modules where the logic-side 5 V bus must be isolated from the field-side voltage. Its 1 W continuous output is sufficient to power a full isolated transceiver plus its decoupling network without a secondary regulated converter. The compact DMA footprint also fits isolated power rails in medical measurement equipment and building-automation sensor nodes where creepage and clearance requirements mandate galvanic separation.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| YTEOL | 6.2 |
| Analog IC - Other Type | DC-DC UNREGULATED POWER SUPPLY MODULE |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 5V |
| JESD-30 Code | R-XDMA-G5 |
| JESD-609 Code | e1 |
| Load Regulation-Max | 15% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 0.2A |
| Output Voltage-Max | 5.25V |
| Output Voltage-Min | 4.75V |
| Output Voltage-Nom | 5V |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | MODULE,5LEAD,.45 |
| Package Shape | RECTANGULAR |
| Package Style | MICROELECTRONIC ASSEMBLY |
| Peak Reflow Temperature (Cel) | 255 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Technology | HYBRID |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Tin/Silver/Copper (Sn/Ag/Cu) |
| Terminal Form | GULL WING |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 5 |
| Total Power Output-Max | 1W |
| Trim/Adjustable Output | NO |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the R1S-0505/HP accept, and can it run directly from a USB 5 V rail?
The R1S-0505/HP accepts input voltages from 4.5 V to 5.5 V, which fully encompasses the USB 5 V bus tolerance of ±5%. It can therefore be powered directly from a USB-sourced 5 V rail without an intermediate regulator, making it convenient for USB-connected isolated interface modules and sensor hubs.
How much output power does the R1S-0505/HP deliver, and what isolated circuits fit within that budget?
The R1S-0505/HP delivers 1 W of continuous output power at 5 V, which translates to 200 mA of available current. This is sufficient to power an isolated RS-485 transceiver drawing 120 mA plus its 100 mA bypass decoupling, or an optocoupler-based digital isolator bank drawing up to 180 mA, within a single low-cost SIP module footprint.
What does the 15% load regulation specification mean for downstream circuit design with the R1S-0505/HP?
The 15% load regulation means the R1S-0505/HP output voltage can vary by up to 15% between no load and full 1 W load, potentially swinging from roughly 5.75 V at no load to 5 V under full load. Downstream circuits must tolerate this range; alternatively, a local LDO post-regulator can tighten the output to ±2% if the connected logic requires a stable 5 V reference.
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About RECOM Power
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