RO-1205S RECOM Power Power Supply (Other) In Stock
The RO-1205S is a RECOM Power unregulated DC-DC converter module accepting a 10.8 V to 13.2 V input with a 12 V nominal supply in a 4-pin SIP package. It provides single-output power conversion with up to 15% load regulation in a compact SMA SIP4 through-hole form factor. Available worldwide in stock for industrial, embedded, and isolated power supply applications.
- Manufacturer
- RECOM Power
- Package
- Other
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- RO-1205S 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
- 12 V nominal input (10.8 V to 13.2 V range) unregulated DC-DC converter module in SIP-4 through-hole package
- Single output with up to 15% load regulation for cost-effective non-critical auxiliary supply designs
- 4-pin SIP SMA package for vertical PCB mounting with minimal footprint in space-constrained power stages
- REACH-compliant construction for industrial and commercial equipment regulatory compliance
Applications
The RO-1205S is used in industrial control panels, embedded computing systems, and distributed power architectures requiring a compact 12 V input DC-DC converter module in a SIP through-hole package. Its unregulated single-output topology suits auxiliary bias supply rails for relay drivers, optocoupler bias circuits, and low-sensitivity analog stages where tight regulation is not critical. The SIP-4 pin format simplifies integration into existing through-hole PCB designs without additional mounting hardware.
Specifications
| Reach Compliance Code | Compliant |
| YTEOL | 5.9 |
| Analog IC - Other Type | DC-DC UNREGULATED POWER SUPPLY MODULE |
| Input Voltage-Max | 13.2V |
| Input Voltage-Min | 10.8V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-XSMA-P4 |
| 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 | 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 | PIN/PEG |
| Terminal Pitch | 2.54mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| 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, 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 RO-1205S DC-DC module accept, and what is its load regulation specification?
The RO-1205S accepts an input voltage of 10.8 V to 13.2 V with a nominal 12 V center, and specifies a maximum load regulation of 15%. This unregulated topology means the output voltage will vary up to 15% between no-load and full-load conditions, making it appropriate for bias supplies and auxiliary rails that tolerate output variation rather than precision regulated rails.
How does the SIP-4 package of the RO-1205S simplify integration into through-hole PCB designs?
The SIP-4 (single in-line package with 4 pins) format allows the RO-1205S to mount vertically on a PCB using standard through-hole drilling, requiring only 4 plated holes in a single row. This reduces PCB footprint compared to DIP packages and eliminates the need for SMD reflow for the power module, making it easy to hand-solder in prototype builds or include in wave-solder production runs.
For which types of auxiliary power supply rails is an unregulated module like the RO-1205S most appropriate?
The RO-1205S is best suited for auxiliary bias supplies where output voltage variation of up to 15% across load is acceptable, such as relay coil drivers, fan bias supplies, analog reference pre-regulators, and optocoupler bias circuits in 12 V industrial systems. For precision analog circuits requiring output variation below 2%, a regulated DC-DC converter with feedback control should be selected instead of this unregulated module.
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About RECOM Power
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