Power Supplies - Board Mount

R-78HB3.3-0.5

Active

Recom Power

NON-ISOLATED DC/DC CONVERTERS 0.5A DC/DC REG 9-72VIN 3.3VOUT

Deep-Dive with AI

Search across all available documentation for this part.

DocumentsDatasheet Technical Data Sheet EN +1

Power Supplies - Board Mount

R-78HB3.3-0.5

Active

Recom Power

NON-ISOLATED DC/DC CONVERTERS 0.5A DC/DC REG 9-72VIN 3.3VOUT

Deep-Dive with AI

DocumentsDatasheet Technical Data Sheet EN +1

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	R-78HB3.3-0.5

Applications	ITE (Commercial)
Current - Output (Max) [Max]	500 mA
Features	OTP, SCP
Mounting Type	Through Hole
Number of Outputs	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 C
Package / Case	3-SIP Module
Power (Watts)	2 W
Size / Dimension [x]	0.45 "
Size / Dimension [x]	11.5 mm
Size / Dimension [y]	0.33 "
Size / Dimension [y]	8.5 mm
Size / Dimension [z]	17.5 mm
Size / Dimension [z]	0.69 in
Type	Linear Regulator Replacement
Voltage - Input (Max) [Max]	72 V
Voltage - Input (Min) [Min]	9 V
Voltage - Output 1	3.3 V

R-78HB Series

Part	Voltage - Input (Max) [Max]	Number of Outputs	Package / Case	Current - Output (Max) [Max]	Applications	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Efficiency	Size / Dimension [z]	Size / Dimension [y]	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [x]	Size / Dimension [z]	Type	Power (Watts)	Voltage - Input (Min) [Min]	Features	Voltage - Output 1
Recom Power R-78HB9.0-0.5	72 V	1	3-SIP Module	500 mA	ITE (Commercial)	Through Hole	85 °C	-40 C	92 %	17.5 mm	0.33 "	0.45 "	8.5 mm	11.5 mm	0.69 in	Linear Regulator Replacement	5 W	14 V	OTP SCP	9 V
Recom Power R-78HB12-0.5	72 V	1	3-SIP Module	500 mA	ITE (Commercial)	Through Hole	85 °C	-40 C	94 %	17.5 mm	0.33 "	0.45 "	8.5 mm	11.5 mm	0.69 in	Linear Regulator Replacement	6 W	17 V	OTP SCP	12 V
Recom Power R-78HB3.3-0.5	72 V	1	3-SIP Module	500 mA	ITE (Commercial)	Through Hole	85 °C	-40 C		17.5 mm	0.33 "	0.45 "	8.5 mm	11.5 mm	0.69 in	Linear Regulator Replacement	2 W	9 V	OTP SCP	3.3 V
Recom Power R-78HB6.5-0.5L	72 V	1	3-SIP Module	500 mA	ITE (Commercial)	Right Angle Through Hole	85 °C	-40 C	91 %	8.5 mm	0.45 in	0.69 in	11.5 mm	17.5 mm	0.33 in	Linear Regulator Replacement	3.25 W	9 V	OTP SCP	6.5 V
Recom Power R-78HB5.0-0.5	72 V	1	3-SIP Module	500 mA	ITE (Commercial)	Through Hole	85 °C	-40 C	87 %	17.5 mm	0.33 "	0.45 "	8.5 mm	11.5 mm	0.69 in	Linear Regulator Replacement	3 W	9 V	OTP SCP	5 V
Recom Power R-78HB24-0.3L	72 V	1	3-SIP Module	0.3 A	ITE (Commercial)	Right Angle Through Hole	85 °C	-40 C	96 %	8.5 mm	0.45 in	0.69 in	11.5 mm	17.5 mm	0.33 in	Linear Regulator Replacement	7.2 W	36 V	OTP SCP	24 V
Recom Power R-78HB6.5-0.5	72 V	1	3-SIP Module	500 mA	ITE (Commercial)	Through Hole	85 °C	-40 C	91 %	17.5 mm	0.33 "	0.45 "	8.5 mm	11.5 mm	0.69 in	Linear Regulator Replacement	3 W	9 V	OTP SCP	6.5 V
Recom Power R-78HB12-0.5L	72 V	1	3-SIP Module	500 mA	ITE (Commercial)	Right Angle Through Hole	85 °C	-40 C	94 %	8.5 mm	0.45 in	0.69 in	11.5 mm	17.5 mm	0.33 in	Linear Regulator Replacement	6 W	17 V	OTP SCP	12 V
Recom Power R-78HB12-0.5/W	72 V	1		500 mA	ITE (Commercial)	Chassis Mount	85 °C	-40 C	93 %	24 mm	0.38 "	0.48 in	9.7 mm	12.1 mm	0.94 "	Linear Regulator Replacement	6 W	17 V		12 V
Recom Power R-78HB9.0-0.5L	72 V	1	3-SIP Module	500 mA	ITE (Commercial)	Right Angle Through Hole	85 °C	-40 C	92 %	8.5 mm	0.45 in	0.69 in	11.5 mm	17.5 mm	0.33 in	Linear Regulator Replacement	4.5 W	14 V	OTP SCP	9 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	N/A	374	$ 15.50
		966	$ 15.50
Newark	Each	25	$ 14.63
		50	$ 14.35
		100	$ 12.90
Sager	N/A	1	$ 14.88
		5	$ 14.41
		10	$ 13.73
		25	$ 13.33
		50	$ 13.13
		100	$ 12.75
		250	$ 11.90

Description

General part information

R-78HB Series

The R-78HB3.3-0.5 is a 1-output 1.65W through hole-mount non-isolated DC/DC Converter for use with battery powered applications. High input voltage Switching Regulator ideally suited to replace 78xx linear regulators and are pin compatible. The 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 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.

Documents

Technical documentation and resources