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R-78 Series Our R-78 series is the original non isolated, high efficiency switching regulator designed as a pin compatible drop in replacement for LM78 linear regulators - no heat sink required! RECOM's R-78 series switching regulator modules offer all the advantages of a switching regulator - high efficiency, wide input voltage range, accurate output voltage regulation - with a low cost for production quantities. The R-78 series offer a risk-free, pre-tested solution that makes designing a switching regulator circuit redundant. The R-78 series meet all of the most commonly requested specifications yet makes no compromise when it comes to quality and reliability as it is guaranteed with a full 3 year warranty from RECOM.
R-78E Switching Regulator Module
RECOM introduces the R-78E low-cost switching regulator to save engineers significant development time and keep their BOM under budget 
R-78E switching regulator module now offers all the advantages of a switching regulator (high efficiency, wide input voltage range, accurate output voltage regulation) with a low cost for production quantities. The R-78E offers a risk-free, pre-tested solution that makes designing a switching regulator circuit redundant. The R-78E meets all of the most commonly requested specifications yet makes no compromise when it comes to quality and reliability as it is guaranteed with a full 3 year warranty from RECOM. The input voltage covers the 7 VDC to 28 VDC range, allowing operation from both an industrial 24 V bus or from either a 9 V or 12 V battery. The converter is fully protected against overload, short circuit, and over-temperature conditions. Due to the R-78E’s high efficiency of up to 92% at an output voltage of 5 V/500 mA, no heat-sink is required for operation over the full industrial temperature range of -40°C to +85°C (+70°C without derating). The compact SIP3 package, TO-220 compatible, measures only 11.6 x 8.5 x 10.4 mm saving precious board space.
R-78C Series Switching Regulators
Compact and highly efficient, the new R-78C series switching regulator operates up to 42 V 
RECOM has significantly improved the existing features of the standard R-78 series with a much higher input voltage range of up to 42 VDC and double the output power in the same size case. The R-78C series offers 15 W/cm³ of power. Although the R-78C has the highest efficiency of 96% when the input/output voltage variance is only a few volts, it still can achieve 90% efficiency even with an input voltage of 30 V higher than the output voltage. The R-78C can deliver high efficiency over the entire input voltage range and with a nearly constant efficiency when the load varies between 20% and 100%.
R-78xx-0.5 Modular Switching Regulator
High Efficiency 0.5 amp output with medical approvals 
The R-78xx-0.5 Series high efficiency switching regulators are ideally suited to replace 78xx linear regulators and are pin compatible. The efficiency of up to 97% means that very little energy is wasted as heat so there is no need for any heat sinks with their additional space and mounting costs. Low ripple and noise figures and short circuit, overload and over temperature protection round off the specifications of this versatile converter series. This R-78xx-0.5 is fully certified to EN 60601-1-2 (Medical Equipment), EN 55022 (Emissions), and EN55024 (Immunity) EMC Standards and for EN-60950-1 Safety.
R-78HBxx-0.5 Modular Switching Regulator
Input voltage up to 72V with 96% efficiency and 0.5 amp output 
The R-78HBxx-Series high efficiency, high input voltage switching regulators are pin compatible and ideally suited to replacing 78xx linear regulators. An efficiency of up to 96% means that very little energy is wasted as heat so there is no need for any heat sinks with their additional space requirements and mounting costs. An input voltage range of up to 8:1 is unsurpassed by any other converter and allows the full stored energy utilization of standard and high voltage batteries. The fully protected output is ideal for industrial applications (especially for industry standard 24VDC bus supplies) and the L-Version with 90° pins allows direct replacement for laid-flat regulators where component height is at a premium. Low ripple and noise figures and a short circuit input current of typically only 15mA round off the specifications of this versatile converter series.
R-78Bxx-1.0 Modular Switching Regulator
High efficiency 1.0 amp output with medical approvals 
The R-78Bxx-1.0 Series high efficiency switching regulators are ideally suited to replace 78xx linear regulators and are pin compatible. The efficiency of up to 97% means that very little energy is wasted as heat so there is no need for any heat sinks with their additional space and mounting costs. Low ripple and noise figures and short circuit input current of typically only 10mA, overload and over temperature protection round off the specifications of this versatile converter series. This R-78Bxx-1.0 is fully certified to EN 60601-1-2 (Medical Equipment), EN 55022 (Emissions), and EN55024 (Immunity) EMC Standards and for EN-60950-1 Safety. The L-Version with 90° pins allows direct replacement for laid-flat regulators where component height is at a premium.
R-78Bxx-1.5 Modular Switching Regulator
High efficiency 1.5 amp output with medical approvals 
The R-78Bxx-1.5 Series high efficiency switching regulators are ideally suited to replace 78xx linear regulators and are pin compatible. The efficiency of up to 97% means that very little energy is wasted as heat so there is no need for any heat sinks with their additional space and mounting costs. Low ripple and noise figures and short circuit input current of typically only 10mA, overload and over temperature protection round off the specifications of this versatile converter series. This R-78Bxx-1.5 is fully certified to EN 60601-1-2 (Medical Equipment), EN 55022 (Emissions), and EN55024 (Immunity) EMC Standards and for EN-60950-1 Safety. The L-Version with 90° pins allows direct replacement for laid-flat regulators where component height is at a premium.
ROF-78xx-0.5SMD Modular Switching Regulator
High efficiency 0.5A open frame surface mount 
The ROF-78xx-0.5SMD high efficiency switching regulators are ideally suited to replace SMD linear regulators. The efficiency of up to 95% means that very little energy is wasted as heat so full power operation over the full industrial ambient temperature range of -40°C to +85°C is possible. Low ripple and noise figures and short circuit, overload and over-temperature protection round off the specifications of this versatile converter series. This ROF-78xx-0.5SMD is compliant to EN 55022 CISPR 22 Class B (Emissions) with a simple external filter, EN 61000-6-1 and EN 61000-6-2 Crit A (Radiated Susceptibility), EN 61000-4-2 Crit B (Electrostatic Discharge 4kV).
R-78AAxx-0.5SMD Modular Switching Regulator
High efficiency 0.5 amp SMD switching regulators ideally suited to modern pick-and-place mass production. 
The R-78AAxx-0.5SMD series are manufactured without lead and meet the requirements for RoHS 6/6 as well as the increased reflow soldering temperatures associated with vapor phase soldering, making these high efficiency switching regulators ideally suited to modern pick-and-place mass production. The efficiency of up to 97% means that very little energy is wasted as heat. The additional features of remote on/off control and adjustable output voltages will find many uses in the battery-powered, industrial, medical and automotive markets.
R-78AAxx-1.0SMD Modular Switching Regulator
High efficiency 1.0 amp SMD switching regulators ideally suited to modern pick-and-place mass production. 
The R-78AAxx-1.0SMD series are manufactured without lead and meet the requirements for RoHS 6/6 as well as the increased reflow soldering temperatures associated with vapor phase soldering, making these high efficiency switching regulators ideally suited to modern pick-and place mass production. The efficiency of up to 94% means that very little energy is wasted as heat. The additional features of remote on/off control and adjustable output voltages will find many uses in the battery-powered, industrial, medical and automotive markets.
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Product Training ModulesR-78 Series: Modular Switching Regulators 
Become an expert on the benefits of the R-78 series in comparison to standard linear regulators. Resources |
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R-78C
R-78xx-0.5 
R-78HBxx-0.5 
R-78Bxx-1.0
R-78Bxx-1.5
ROF-78xx-0.5SMD
R-78AAxx-0.5SMD
