Power Supplies - Board Mount

R-78B3.3-1.0L

Active

Recom Power

NON-ISOLATED DC/DC CONVERTERS 1A DC/DC REG 4.75-34VIN 3.3VOUT

Power Supplies - Board Mount

R-78B3.3-1.0L

Active

Recom Power

NON-ISOLATED DC/DC CONVERTERS 1A DC/DC REG 4.75-34VIN 3.3VOUT

Specifications Series Pricing CAD Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	R-78B3.3-1.0L

Applications	ITE (Commercial), Medical
Current - Output (Max)	1 A
Efficiency	89 %
Features	SCP, OTP
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)	3 W
Size / Dimension Height	0.33 in
Size / Dimension Length	0.69 in
Size / Dimension Width	0.45 in
Type	Linear Regulator Replacement
Voltage - Input (Max)	32 V
Voltage - Input (Min)	4.75 V
Voltage - Output 1	3.3 V

R-78B Series

Part	Power (Watts)	Applications	Package / Case	Type	Voltage - Input (Min)	Efficiency	Features	Number of Outputs	Current - Output (Max)	Operating Temperature (Min)	Operating Temperature (Max)	Size / Dimension Height	Size / Dimension Length	Size / Dimension Width	Voltage - Input (Max)	Mounting Type	Voltage - Output 1
Recom Power R-78B6.5-1.5L	9.75 W	ITE (Commercial)	3-SIP Module	Linear Regulator Replacement	8 V	95 %	OTP SCP	1	1.5 A	-40 °C	85 °C	0.33 in	0.69 in	0.45 in	18 V	Right Angle Through Hole	6.5 V
Recom Power R-78B9.0-1.0L	9 W	ITE (Commercial) Medical	3-SIP Module	Linear Regulator Replacement	12 V	95 %	OTP SCP	1	1 A	-40 °C	85 °C	0.33 in	0.69 in	0.45 in	32 V	Right Angle Through Hole	9 V
Recom Power R-78B1.8-1.0L	1.8 W	ITE (Commercial) Medical	3-SIP Module	Linear Regulator Replacement	4.75 V	80 %	OTP SCP	1	1 A	-40 °C	85 °C	0.33 in	0.69 in	0.45 in	26 V	Right Angle Through Hole	1.8 V
Recom Power R-78B6.5-1.0L	6.5 W	ITE (Commercial) Medical	3-SIP Module	Linear Regulator Replacement	9 V	94 %	OTP SCP	1	1 A	-40 °C	85 °C	0.33 in	0.69 in	0.45 in	32 V	Right Angle Through Hole	6.5 V
Recom Power R-78B3.3-1.0L	3 W	ITE (Commercial) Medical	3-SIP Module	Linear Regulator Replacement	4.75 V	89 %	OTP SCP	1	1 A	-40 °C	85 °C	0.33 in	0.69 in	0.45 in	32 V	Through Hole	3.3 V
Recom Power R-78B15-1.0L	15 W	ITE (Commercial) Medical	3-SIP Module	Linear Regulator Replacement	20 V	97 %	OTP SCP	1	1 A	-40 °C	85 °C	0.33 in	0.69 in	0.45 in	32 V	Right Angle Through Hole	15 V
Recom Power R-78B9.0-1.0	9 W	ITE (Commercial) Medical	3-SIP Module	Linear Regulator Replacement	12 V	95 %	OTP SCP	1	1 A	-40 °C	85 °C	0.69 in	0.45 in	0.33 in	32 V	Through Hole	9 V
Recom Power R-78B1.8-1.0	2 w	ITE (Commercial) Medical	3-SIP Module	Linear Regulator Replacement	4.75 V	80 %	OTP SCP	1	1 A	-40 °C	85 °C	0.69 in	0.45 in	0.33 in	26 V	Through Hole	1.8 V
Recom Power R-78B3.3-1.5	4.95 W	ITE (Commercial)	3-SIP Module	Linear Regulator Replacement	4.75 V	91 %	OTP SCP	1	1.5 A	-40 °C	85 °C	0.69 in	0.45 in	0.33 in	18 V	Through Hole	3.3 V
Recom Power R-78B5.0-1.5L	7.5 W	ITE (Commercial)	3-SIP Module	Linear Regulator Replacement	6.5 V	94 %	OTP SCP	1	1.5 A	-40 °C	85 °C	0.33 in	0.69 in	0.45 in	18 V	Right Angle Through Hole	5 V

Pricing

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

Distributor	Package	Quantity	$	Updated

Digikey	Tube	1	$ 11.58	<6d
		5	$ 11.15
		10	$ 10.97
		25	$ 10.73
		50	$ 10.56
		100	$ 10.39
		250	$ 10.16
		500	$ 10.00
Newark	Each	25	$ 10.96	1w
		50	$ 10.07
		100	$ 9.83
RS Group	Minimum Package Quantity (MPQ)	1	$ 8.79	<5d
		5	$ 8.53
		10	$ 8.27
		25	$ 8.00
		50	$ 7.74
RS Group	Primary Pack (PP)	5	$ 7.13	<5d
		10	$ 6.92
		25	$ 6.70
		50	$ 6.48
RS Group	Special/Small Minimum Order (SSM)	1	$ 7.36	<5d
		5	$ 7.13
		10	$ 6.92
		25	$ 6.70
		50	$ 6.48
Sager	N/A	1	$ 10.82	30d+
		5	$ 10.47
		10	$ 9.97
		25	$ 9.68
		50	$ 9.56
		100	$ 9.27
		250	$ 8.65

CAD

3D models and CAD resources for this part

Description

General part information

R-78B Series

The R-78B3.3-1.0L is a 1-output 3.3W through hole-mount non-isolated DC/DC Converter with 97% efficiency. Switching regulator is ideally suited to replace 78xx linear regulators and are pin compatible. The efficiency of up to 97% means that very little energy is wasted as heat so there is no need for any heat sinks with their additional space. 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 10mA round off the specifications of this versatile converter series.

Documents

Technical documentation and resources

Datasheet