RM-2405S RECOM Power Power Supply (Other) In Stock
The RM-2405S is a RECOM Power unregulated DC-DC converter module with a 24V nominal input range (21.6–26.4V) and 5V output in a compact SIP-4 through-hole package. It provides isolated power conversion for industrial and embedded applications. Available worldwide in stock with fast shipping.
- Manufacturer
- RECOM Power
- Package
- Other
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- RM-2405S Datasheet PDF
- Category
- Power Supply
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 24V nominal input (21.6–26.4V range) with isolated 5V output makes the RM-2405S ideal for 24V industrial bus-powered systems
- SIP-4 through-hole package allows direct PCB insertion without special tooling or SMD reflow processes
- RoHS and REACH compliant construction supports global regulatory requirements for green electronics manufacturing
Applications
The RM-2405S is suited for industrial control cards, PLC I/O modules, and field sensor nodes powered from a 24V industrial rail that need an isolated 5V logic supply without a full switching regulator design. Its single-function unregulated DC-DC module architecture simplifies BOM management and enables fast drop-in power isolation for microcontroller and signal-conditioning circuits operating alongside high-voltage industrial loads.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| YTEOL | 6.4 |
| Analog IC - Other Type | DC-DC UNREGULATED POWER SUPPLY MODULE |
| Input Voltage-Max | 26.4V |
| Input Voltage-Min | 21.6V |
| Input Voltage-Nom | 24V |
| JESD-30 Code | R-XSMA-T4 |
| Load Regulation-Max | 15% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 0.05A |
| Output Voltage-Max | 5.25V |
| Output Voltage-Min | 4.75V |
| Output Voltage-Nom | 5V |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | SIP4,.18 |
| Package Shape | RECTANGULAR |
| Package Style | MICROELECTRONIC ASSEMBLY |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Qualification Status | Not Qualified |
| Surface Mount | NO |
| Technology | HYBRID |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Total Power Output-Max | 0.25W |
| Trim/Adjustable Output | NO |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| Country of Origin | Mainland China, Taiwan |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the RM-2405S support, and what industrial bus rails is it compatible with?
The RM-2405S accepts a nominal 24V DC input with a minimum of 21.6V and a maximum of 26.4V. This range is directly compatible with standard 24V industrial control bus rails used in PLCs, DCS systems, and factory automation panels, eliminating the need for pre-regulators or resistive dropping networks to adapt a 24V supply to 5V logic.
How does the 15% load regulation specification affect circuit design downstream of the RM-2405S?
A maximum load regulation of 15% means the 5V output can vary by up to 750 mV between no-load and full-load conditions, which is typical for unregulated DC-DC modules. Designers must place local low-dropout regulators or bulk capacitors of at least 100µF downstream if the target load requires tighter than ±5% supply tolerance, such as analog signal chains, ADCs, or precision sensor excitation circuits.
What package does the RM-2405S use, and how does it mount on a PCB?
The RM-2405S uses a SIP-4 (Single Inline Package, 4-pin) through-hole format, identified by the Harwin JESD-30 code R-XSMA-T4. The 4 pins insert into a 2.54mm or compatible pitch through-hole pattern and are wave-soldered or hand-soldered. This format provides a mechanically robust solder joint that resists vibration better than surface-mount power modules in industrial environments.
For a 24V-powered industrial sensor node, when should an engineer choose the RM-2405S over a switching regulator IC?
The RM-2405S is preferable when the design requires galvanic isolation between the 24V power rail and the 5V logic side, which a simple switching regulator IC cannot provide. Isolation prevents ground loops and protects sensitive 5V microcontrollers from 24V transients or common-mode noise on the industrial bus, reducing EMC susceptibility and increasing reliability in environments with motor drives, solenoids, or relay-heavy control panels.
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