RO-1205S RECOM Power Power Supply (Other) In Stock

Name: RO-1205S
Brand: RECOM Power
SKU: RO-1205S
Availability: InStock

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.

ACTIVEPower SupplyVerified Jun 2026

Package / Visual Reference

RO-1205SOther

Quick Facts

Manufacturer: RECOM Power
Package: Other
Pin Count: 4
Lifecycle: ACTIVE
Datasheet: RO-1205S Datasheet PDF
Category: Power Supply
Price: From $4.6300(MOQ 1)
Temp Range: -40.0°C to 85.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of RO-1205S?

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

What is RO-1205S used for?

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.

What are the specifications of RO-1205S?

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

Where can I find the RO-1205S datasheet?

RO-1205S Datasheet Download

Official datasheet from RECOM Power

What are equivalent replacements for RO-1205S?

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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AvailabilityIn Stock

Reference Price (USD)

From $4.6300

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$6.0200	$6.02
19+	$4.6300	$87.97

pcs

Unit price: $6.0200 · Total: $6.02

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Direct Contact

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Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

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RO-1205S RECOM Power Power Supply (Other) In Stock

What are the key features of RO-1205S?

What is RO-1205S used for?

What are the specifications of RO-1205S?

Compliance & Regulatory

Where can I find the RO-1205S datasheet?

What are equivalent replacements for RO-1205S?

Frequently Asked Questions

What input voltage range does the RO-1205S DC-DC module accept, and what is its load regulation specification?

How does the SIP-4 package of the RO-1205S simplify integration into through-hole PCB designs?

For which types of auxiliary power supply rails is an unregulated module like the RO-1205S most appropriate?

Related Guides

STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply

STM32H725IGT3 High-Performance MCU Design Guide

150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing

STEF05SGR 5 V eFuse Protection Design Guide

Why Buy from FindMyChip

About RECOM Power

More from RECOM Power

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