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Recom Switching Regulator, Through Hole, 12V dc Output Voltage, 15 → 28V dc Input Voltage, 500mA Output Current,

RS Stock No.:: 166-8978
Mfr. Part No.:: R-78E12-0.5
Brand:: Recom

Recom Switching Regulator, Through Hole, 12V dc Output Voltage, 15 → 28V dc Input Voltage, 500mA Output Current,

Bulk discount available

Subtotal (1 tube of 42 units)*

£115.30

(exc. VAT)

£138.36

(inc. VAT)

FREE delivery for orders over £50.00

Temporarily out of stock

3 unit(s) shipping from 13 November 2025

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Tube(s)	Per Tube	Per unit*
1 - 4	£115.30	£2.745
5 - 9	£111.85	£2.663
10 - 24	£108.38	£2.58
25 - 49	£104.93	£2.498
50 +	£101.47	£2.416

*price indicative

RS Stock No.:: 166-8978
Mfr. Part No.:: R-78E12-0.5
Brand:: Recom

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Recom
	Output Voltage	12V dc
	Output Current	500mA
	Input Voltage	15 → 28V dc
	Mounting Type	Through Hole
	Number of Outputs	1
	Package	TO-220
	Efficiency	95%
	Ripple And Noise	70mV Pk-Pk
	Minimum Temperature	-40°C
	Maximum Temperature	+85°C
	Series	R-78E-0.5
	Line Regulation	±0.5%
	Width	8.5mm
	Depth	10.4mm
	Application	Industrial
	Protection Features	Over Temperature Protection, Overload Protection, Short Circuit Protection
	Weight	2g
	MTBF	2182000 (+85 °C)h
	Maximum Input Current	1.5mA
	Load Regulation	±1%
	Length	11.6mm
	Power Signal Conversion Type	DC-DC

	Select all
	Brand Recom
	Output Voltage 12V dc
	Output Current 500mA
	Input Voltage 15 → 28V dc
	Mounting Type Through Hole
	Number of Outputs 1
	Package TO-220
	Efficiency 95%
	Ripple And Noise 70mV Pk-Pk
	Minimum Temperature -40°C
	Maximum Temperature +85°C
	Series R-78E-0.5
	Line Regulation ±0.5%
	Width 8.5mm
	Depth 10.4mm
	Application Industrial
	Protection Features Over Temperature Protection, Overload Protection, Short Circuit Protection
	Weight 2g
	MTBF 2182000 (+85 °C)h
	Maximum Input Current 1.5mA
	Load Regulation ±1%
	Length 11.6mm
	Power Signal Conversion Type DC-DC

R78E Series Switching Regulator

The Recom R-78E series are highly efficient, non-isolated switching regulators. They offer a high-quality product at a low cost in production quantity. Coupled with the compact design, this module is ideal across a number of industrial applications.

With a high start-up current capability and a high efficiency of up to 95%, there is no need for heat sink and with the compact SIP3 package important space on the board is also saved.

Features and Benefits

• R-78E Series
• Low cost switching regulator
• High start-up current capabilities
• Short circuit protection
• High efficiency of up to 95%
• High efficiency, non-isolated, no need for heatsinks
• Pin compatible with 78 series regulators
• SIP3 package

Note

Power derates above 70°C

RECOM Switching Regulator, Through-Hole Mounting, DC-DC Conversion - R-78E-0.5 Series - R-78E12-0.5

Need a stable 12V DC supply for your equipment? This switching regulator from RECOM takes an input voltage anywhere between 15V and 28V DC and outputs a steady 12V DC. Line regulation of ±0.5% and load regulation of ±1% ensure a consistent supply, even if there are fluctuations in supply and demand. High efficiency of 95% reduces heat dissipation, meaning you won't need a separate heatsink. The compact SIP3 package saves space on your board.

Features & Benefits

• Operating temperature range of -40°C to +85°C makes it suitable for harsh environments
• Ripple and noise of 70 mV Pk-Pk reduce risk of damage due to overheating
• MTBF of 2,182,000h at +85°C for a long service life
• Through-hole mounting creates a strong connection with your PCB

Applications

• Military hardware
• Steel mills
• Lifts

What's load regulation?

Load regulation is the measure of a power supply's ability to output a constant voltage when the output current fluctuates. The smaller the percentage, the more stable the supply.

What's line regulation?

Line regulation is similar to load regulation in that it's a measure of a power supply's ability to maintain a constant voltage despite fluctuations in current. Load regulation refers to the output, whereas line regulation refers to the input.

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