# RO-1209S (Component) ## Description Isolated Module DC DC Converter 1 Output 9V 111mA 10.8V - 13.2V Input The RO-1209S is a compact, isolated 1W DC-DC converter module from the ECONOLINE RO series, designed to convert a nominal 12V DC input into a regulated 9V DC isolated output. Housed in a SIP-4 through-hole package, it provides galvanic isolation of up to 1kVDC between input and output, making it suitable for industrial, instrumentation, telecommunications, and general-purpose power isolation applications. The module features a wide operating temperature range and fully encapsulated construction for enhanced reliability. Key Features 1W isolated DC-DC converter Nominal 12V DC input voltage Single 9V DC output 1kVDC input-to-output isolation Compact SIP-4 through-hole package Fully encapsulated design for improved reliability Industrial operating temperature range: -40°C to +85°C Up to 80–85% efficiency Industry-standard pinout Suitable for power isolation and voltage conversion applications UL94V-0 package material Optional short-circuit protection variants available #RO1209S #DCDCConverter #IsolatedPowerSupply #PowerModule #RecomPower #DCDC #PowerElectronics #IndustrialElectronics #VoltageConverter #SIP4 ## Component Details - **Owner:** adrian95 - **Created:** 6/10/2026 - **Last Updated:** 6/10/2026 - **Visibility:** Public - **Manufacturer Name:** RECOM Power - **Part Type:** Integrated Circuits - **Datasheet URL:** https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/e2da0f388d4a4c528ae79ab22fa213f89c160130a6ff258e48aa6c16870ae4cd.pdf - **Symbol Style:** parametric-v1 - **Implementation Details:** Package: SIP-4 through-hole isolated DC-DC converter module, 4 pins, 11.5 x 6.0 x 10.0mm body. Datasheet pinout: pin 1 -Vin, pin 2 +Vin, pin 3 -Vout, pin 4 +Vout. - **Manufacturer Part Number:** RO-1209S - **License:** https://creativecommons.org/licenses/by/4.0/ ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [Arrow](https://www.arrow.com/en/products/ro-1209s/recom-power.html?utm_currency=USD&region=nac) | N/A | N/A | | [LCSC](https://www.lcsc.com/product-detail/C6661146.html) | $5.4439 | 0 | | [Mouser](https://www.mouser.com/ProductDetail/RECOM-Power/RO-1209S?qs=8OBu2JtKQqrbisBhPdj2wA%3D%3D) | $6.57 | 16 | - **Part Type:** Integrated Circuits - **Sub-Type:** Logic - **MPN:** RO-1209S - **Mount Type:** Through Hole - **Package / Case Code:** Module - **Pin Count:** 4 - **Logic Function:** AND ## Pins | Pin | Name | Type | |-----|------|------| | 1 | -VIN | | | 2 | +VIN | | | 3 | -VOUT | | | 4 | +VOUT | | --- *Generated from [https://www.flux.ai/adrian95/ro-1209s](https://www.flux.ai/adrian95/ro-1209s)*