Recom Switching Regulator, Through Hole, 1.8V dc Output Voltage, 4.75 → 18V dc Input Voltage, 1A Output Current,

RS Stock No.:: 166-8988
Mfr. Part No.:: R-781.8-1.0
Brand:: Recom

Recom Switching Regulator, Through Hole, 1.8V dc Output Voltage, 4.75 → 18V dc Input Voltage, 1A Output Current,

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Subtotal (1 tube of 42 units)*

$599.37

(exc. GST)

$689.28

(inc. GST)

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Temporarily out of stock

Shipping from 13 April 2026

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Tube(s)	Per Tube	Per unit*
1 - 1	$599.37	$14.271
2 - 3	$586.18	$13.957
4 +	$573.60	$13.657

*price indicative

RS Stock No.:: 166-8988
Mfr. Part No.:: R-781.8-1.0
Brand:: Recom

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Recom
	Output Voltage	1.8V dc
	Output Current	1A
	Input Voltage	4.75 → 18V dc
	Mounting Type	Through Hole
	Number of Outputs	1
	Package	SIP 3
	Power Rating	1.8W
	Efficiency	82%
	Ripple And Noise	20mV Pk-Pk
	Maximum Temperature	+85°C
	Minimum Temperature	-40°C
	Series	R-78-1.0
	Line Regulation	0.2%
	Load Regulation	0.4%
	Width	7.55mm
	Protection Features	Short Circuit Protection
	Application	Industrial
	MTBF	13338000h
	Power Signal Conversion Type	DC-DC
	Depth	10.2mm
	Standards Met	EN 60950-1
	Length	11.5mm
	Maximum Input Current	100mA
	Weight	1.9g
	Switching Frequency Range	280 → 430kHz

	Select all
	Brand Recom
	Output Voltage 1.8V dc
	Output Current 1A
	Input Voltage 4.75 → 18V dc
	Mounting Type Through Hole
	Number of Outputs 1
	Package SIP 3
	Power Rating 1.8W
	Efficiency 82%
	Ripple And Noise 20mV Pk-Pk
	Maximum Temperature +85°C
	Minimum Temperature -40°C
	Series R-78-1.0
	Line Regulation 0.2%
	Load Regulation 0.4%
	Width 7.55mm
	Protection Features Short Circuit Protection
	Application Industrial
	MTBF 13338000h
	Power Signal Conversion Type DC-DC
	Depth 10.2mm
	Standards Met EN 60950-1
	Length 11.5mm
	Maximum Input Current 100mA
	Weight 1.9g
	Switching Frequency Range 280 → 430kHz

Datasheet

COO (Country of Origin):: TW

R78xx 1.0 Series

Non-isolated
Medical safety approval EN-60601-1-2
No need for heat sinks
Pin-out compatible with LM78XX linear regulators
High efficiency
Low ripple and noise
Very low profile
Wide input range, 4.75-18V
Short circuit protection, thermal shutdown
SIP3 package

Note

De-rate above 60°C operating temperature.
MTBF to MIL-HDBK 217F.

Standards

EN-55022, EN-55024, EN-60601-1-2, EN-60950-1

RECOM Switching Regulator, Through-Hole Mounting, 1A Output Current - R-78-1.0 Series - R-781.8-1.0

Looking for a power conversion solution that's safe for use in medical applications? You're in safe hands with this RECOM switch regulator. It takes a wide input range from 4.75 to 18V DC and delivers a steady output voltage of 1.8V, ensuring a reliable power source for your critical equipment. Thanks to compact dimensions of 11.5 (L) x 7.55 (W) x 10.2mm (D) size, it won't take up much space in your setup.

Features & Benefits

• Low ripple and noise of 20mV Pk-Pk keeps EMI to a minimum
• Efficiency of 82% means little energy is lost during conversion, so you won't need a heat sink
• Performs without a glitch in a challenging temperature range between -40°C and +85°C

Applications

• Renewable energy plants
• Automotive industry
• Telecommunications networks

How does this regulator handle unsteady input voltage?

This switching regulator delivers line regulation of 0.2%. This means that even with fluctuating input voltage, it's able to maintain steady output.

How reliable is this switching regulator?

As it has a mean time between failures of over 13 million hours at +25°C, you can depend on smooth and consistent performance over the long term.