Recom DC-DC Switching Regulator, Through Hole, 3.3V dc Output Voltage, 6.5 → 32V dc Input Voltage, 6 →

View all Switching Regulators
Bulk discount available

Subtotal 5 units (supplied in a bag)*

£39.95

(exc. VAT)

£47.95

(inc. VAT)

Add to Basket
Select or type quantity
In Stock
  • 56 unit(s) ready to ship
  • Plus 75 unit(s) shipping from 16 October 2025
  • Plus 50 unit(s) shipping from 13 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
5 - 9£7.99
10 - 24£7.74
25 - 49£7.49
50 +£7.25

*price indicative

Packaging Options:
RS Stock No.:
901-1371P
Mfr. Part No.:
R-78W3.3-0.5
Brand:
Recom
Find similar products by selecting one or more attributes.
Select all

Brand

Recom

Output Voltage

3.3V dc

Output Current

6 → 500mA

Input Voltage

6.5 → 32V dc

Mounting Type

Through Hole

Number of Outputs

1

Package

SIP 3

Power Rating

16W

Efficiency

88%

Ripple And Noise

75mV Pk-Pk

Maximum Temperature

+85°C

Minimum Temperature

-40°C

Series

R-78W-0.5

Line Regulation

±0.4%

Load Regulation

±0.6%

Special Features

Draw Only 1mA Under No Load Conditions, Fully Protected Outputs

Power Signal Conversion Type

DC-DC

Rated Output Power

16W

Width

8.5mm

Output Voltage Adjustment Range

±3%

MTBF

9368 x 10³h

Protection Features

Built In Diode, Short Circuit Protection

Application

Battery Powered Systems, Cooling Systems, Fans, High Power LED Lighting

Weight

4.8g

Depth

17.5mm

Standards Met

CE, EN 60950-1 - 3rd Edition, EN 60950-1 Certified, IEC 60950-1 - 2nd Edition, IEC 60950-1 Certified, REACH, RoHS Compliant, UL

Length

11.5mm

Switching Frequency Range

280 → 380kHz

COO (Country of Origin):
TW

Recom R-78W-0.5 Series Single Output DC/DC Converter


The Recom R-78W-0.5 series of DC-DC converters are compact, low profile SMD switching regulators. R-78W-0.5 series has a high efficiency of up to 96%, which means that these DC-DC converters do not require heatsinks or fans. The switching regulator can operate reliably between -40°C and 85°C without derating. These DC-DC converters are the ideal space-saving solution for applications where space is limited.

Efficiency up to 96%, no need for heatsinks
Build-in Diode protection Circuit
Low profile
Wide input range
Short Circuit Protection,
RoHS compatible

RECOM DC-DC Switching Regulator, Built-In Diode Protection Circuit, 220μF Max Capacitive Load - R-78W-0.5 Series - R-78W3.3-0.5


The wrong input becomes the right output thanks to this switching regulator from RECOM. It steps down 6.5 to 32V DC supplies to the stable and noiseless 3.3V DC your low-voltage devices need. To keep you on the safe side, the unit comes with built-in short circuit protection, including an automatic recovery mechanism to ensure you don't lose time to electrical faults. As you don't need to link it to circuit boards to operate it, this is a flexible control solution that's suitable for battery-powered appliances and high-power LED lighting systems.

Features & Benefits


• Broad operating temperature range between -40°C and +85°C for use in demanding settings
• Low ripple and noise rating of 75mV for smooth signal transmission
• Mean time between failures of over nine million hours for long-term performance
• 88% maximum efficiency means it loses minimal power to heat, eliminating the need for a heatsink

Applications


• Process and packaging machinery
• Test and measurement instrumentation
• Automotive industry

How many wires does this regulator have?


For easy reference, this unit comes with three colour-coded wires – red for the input voltage, brown for the output voltage and black for the ground connection.