Recom R DC-DC Converter, 3.3V dc/ 4A Output, 4.5 → 18 V dc Input, 6W, Through Hole, +85°C Max Temp -40°C Min Temp

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Subtotal (1 tube of 15 units)*

£367.18

(exc. VAT)

£440.62

(inc. VAT)

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  • 999,999,999 unit(s) shipping from 25 February 2026
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Tube(s)
Per Tube
Per unit*
1 - 4£367.18£24.479
5 - 9£356.16£23.744
10 - 24£345.15£23.01
25 - 49£334.13£22.275
50 +£323.13£21.542

*price indicative

RS Stock No.:
166-8770
Mfr. Part No.:
R-543.3PA
Brand:
Recom
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Brand

Recom

Output Voltage

3.3V dc

Input Voltage Range

4.5 → 18 V dc

Power Rating

6W

Input Voltage Nominal

12 V dc

Output Current

4A

Mounting Type

Through Hole

Isolated

No

Number of Outputs

1

Package

SIP

Width

9.1mm

Length

32.2mm

Depth

15mm

Series

R

Load Regulation

±2%

Minimum Temperature

-40°C

Maximum Temperature

+85°C

Efficiency

93%

COO (Country of Origin):
TW

R-6xxxP & R-5xxxP Series


Adjustable positive step down integrated switching regulator
Adjustable output voltage
Overload protection
Wide input range
R-5xxxPA series has auto-sense function
Continuous short circuit protection
Remote on/off control
Efficiency up to 96%
SIP12 package

RECOM DC-DC Converter, 91 to 93% Efficiency, Remote On-Off Control - R-5 Series - R-543.3PA


Is finding an efficient switching regulator your top priority? Look to this DC-DC converter from RECOM. It accepts inputs anywhere between 4.5 and 18V DC and steps them down to an adjustable 3.3V DC with an accuracy of ±1%. This makes it practical for running your sensitive DC-powered components. A 91 to 93% efficiency rating means minimal energy is wasted as heat and you won't need a heatsink to keep things cool. You can trust this is a reliable choice thanks to its comprehensive electrical safety mechanisms, including overload and short-circuit protections with automatic recovery. There's even remote ON/OFF control so you can manage your device from a distance.

Features & Benefits


• Typical load regulation of 1% means you get tightly controlled output values
• Autosense function compensates for losses caused by long circuit loops
• Flame-retardant package materials help ensure safety in case of fire
• Mean time between failures of 749,000 hours, so it's a long-lasting choice

Applications


• Renewable energy circuits
• Smart lighting
• Medical devices

What temperatures can I use this converter in?


You can use this unit across an operating temperature range of -40°C to +85°C, so it's a safe bet for demanding industrial settings.

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