1:1 input range Features Efficiency up to 82% 1kVDC/1s or 2kVDC/1s isolation option DC/DC Converter Wide operating temperature range from Unregulated -40C to +100C at full load UL60950-1 and IEC/EN60950-1 certified Converters R1S/E 1W SMD package Description 1 Watt The R1S/E series is an unregulated DC/DC converter in fully encapsulated open Frame package style. SMD This series has been designed to offer exceptionally high efficiency at low loads and an extended operating temperature range. Uses include battery powered supplies, green energy applications and general isolating/converting DC power where board space and high efficiency is a premium. Single Output Selection Guide Part nom. Input Output Output Efficiency max. Capacitive (1) (2) Number Voltage Voltage Current typ. Load VDC VDC mA % F (3) (4,5) R1S -3.305/E 3.3 5 200 81 2200 (3) (4,5) R1S -0505/E 5 5 200 81 2200 (3) (4,5) R1S -1205/E 12 5 200 82 2200 (3) (4,5) R1S -2405/E 24 5 200 80 2200 Notes: Note1: Efficiency is tested at nominal input and full load at +25C ambient Note2: Max Cap Load is tested at nominal input and full resistive load and is defined as the E358085 capacitive load that will allow start up in under 1s without damage to the converter Model Numbering UL60950-1 certified CAN/CSA-C22.2 No. 60950-1-07 certified R1S - /E IEC/EN60950-1 certified (5) Packaging Single EN55032 compliant (4) (3) Protection and Isolation Option Pinning Output Voltage nom. Input Voltage Notes: Note3: without marking denotes 5 pins out of 8 fitted (includes /H option) with marking 8 denotes 8 pins out of 8 fitted (/H option not available) Note4: standard part is without continuous short circuit protection add suffix /P for continuous short circuit protection add suffix /H for 2kVDC/1s isolation (not available for R1S8) or add suffix /HP for 2kVDC/1s isolation and continuous short circuit protection Note5: add suffix -R for tape and reel packaging (compatible with all other suffixes) Ordering Examples: R1S8-3.305/E = Single Output, 8 pins out of 8 fitted, 3.3Vin, 5Vout R1S-3.305/EH = Single Output, 5 pins out of 8 fitted, 3.3Vin, 5Vout with 2kVDC/1s isolation R1S8-0505/EP = Single Output, 8 pins out of 8 fitted, 5Vin, 5Vout with continuous short circuit protection R1S-0505/EHP-R = Single Output, 8 pins out of 8 fitted, 5Vin, 5Vout with 2kVDC/1s isolation, continuous short circuit protection and tape and reel packaging www.recom-power.com REV.: 3/2019 ECO-1Typical Load Line R1S/E DC/DC Converter Series Specifications (measured Ta= 25C, nom. Vin, full load and after warm-up unless otherwise stated) BASIC CHARACTERISTICS Parameter Condition Min. Typ. Max. Input Voltage Range 10% (5) Minimum Load 0% Internal Operating Frequency 20kHz 90kHz Output Ripple and Noise 20MHz BW 50mVp-p 100mVp-p Efficiency vs. Load R1S-xx05/E 100 90 80 70 60 50 40 30 3.305 20 0505 1205 10 2405 0 0 10 20 30 40 50 60 70 80 90 100 Output Load % REGULATIONS Parameter Condition Value Output Accuracy 5.0% max. Line Regulation low line to high line, full load 1.2% typ. Load Regulation 10% to 100% load 15.0% max. Notes: Note5: Operation below 10% load will not harm the converter, but specifications may not be met Tolerance Envelope +10% +5% +5% Vnom -2% -5% 10 50 100 Output Load % continued on next page www.recom-power.com REV.: 3/2019 ECO-2 Efficiency % Output Voltage %