Schottky barrier diode - ROHM -Macnica

Product Summary

A Schottky barrier diode (SBD) is a diode that utilizes a Schottky barrier created by the junction of a metal and a semiconductor. It has a lower forward voltage (VF) than general PN junction diodes, and the device-specific time (reverse recovery time trr) required to turn off when the applied voltage changes from forward to reverse (switching speed) is faster). Therefore, it is an electronic component that is indispensable for improving the efficiency and reducing the size of power supply circuits.

With the demand for low power consumption in all applications, the adoption of SBDs, which are more efficient than other diodes, is increasing. On the other hand, if VF is lowered in pursuit of efficiency, IR, which has a trade-off relationship, increases, increasing the risk of thermal runaway. Therefore, it is important to determine the balance between VF and IR when selecting an SBD during circuit design. There is an inverse correlation (this is called a trade-off) between the SBD's forward voltage drop (VF) and reverse leakage current, so please pay attention to thermal design and usage conditions.

Product features

ROHM has a wide lineup of Schottky barrier diodes with a withstand voltage of 20V to 200V. The RB/RBS/RBR/RBQ series are schottky barrier diodes that have ultra-low VF to ultra-low IR series, and are widely used in overwhelming production volumes regardless of consumer, automotive, or industrial machinery. The ultra-compact series RASMID®, which boasts astonishing dimensional accuracy, uses ROHM's unique new manufacturing method to achieve a miniaturization of 0402 size, enabling higher density mounting.

In addition, by further expanding the lineup of the RBR/RBQ series, which has a proven track record in mass production, for large current, large voltage, and miniaturization, rectification and protection in a wider range of applications are possible.

Product lineup

RBR series (low VF type)

<Features>
・SBD that supports various applications with low VF characteristics
・High current efficiency by introducing high-precision process
・VRM=30V/40V/60V 3 voltage resistance lineup

Low VF type Click here for product search (manufacturer's web page)

RBQ series (low IR type)

<Features>
・SBDs with low IR and medium VF characteristics are ideal for switching power supplies
・Achieved high current efficiency by introducing high-precision process
・VRM=45V/65V/100V 3 voltage lineup

Low IR type Click here for product search (manufacturer's web page)

Package	Circuit	Part No.	Absolute		Electrical Characteristics (T _J =25°C)
			Maximum Ratings		Electrical Characteristics (T _J =25°C)
			V _RM (V)	_IO (A)	_VF Max.		I _R Max.(μA) (V _R =V _RM)
			V _RM (V)	_IO (A)	(V)	at I _F (A)	I _R Max.(μA) (V _R =V _RM)
V _RM = 45V Type
TO-252		RBQ10BM45A	45	10	0.65	5	70
		RBQ15BM45A	45	15	0.59	7.5	140
		RBQ20BM45A	45	20	0.59	10	200
TO-263S		RBQ10NS45A	45	10	0.65	5	70
		RBQ20NS45A	45	20	0.65	10	140
		RBQ30NS45A	45	30	0.65	15	200
TO-220FN		RBQ10T45A	45	10	0.65	5	70
		RBQ20T45A	45	20	0.65	10	140
		RBQ30T45A	45	30	0.65	15	200
TO-263L		RBQ10NL45B	45	10	0.62	10	100
TO-263L		RBQ16NL45B	45	16	0.61	16	200
TO-263S		RBQ30NS45B	45	30	0.59	30	350
TO-220FN		RBQ30TB45B	45	30	0.59	30	350
V _RM = 65V Type
TO-277A		RBQ3RSM65B	65	3	0.57	3	50
		RBQ5RSM65B	65	5	0.64	5	50
		RBQ10RSM65B	65	10	0.67	10	90
TO-252		RBQ10BM65A	65	10	0.69	5	70
		RBQ15BM65A	65	15	0.63	7.5	140
		RBQ20BM65A	65	20	0.63	10	200
TO-263S		RBQ10NS65A	65	10	0.69	5	70
		RBQ20NS65A	65	20	0.69	10	140
		RBQ30NS65A	65	30	0.69	15	200
TO-220FN		RBQ10T65A	65	10	0.69	5	70
		RBQ20T65A	65	20	0.69	10	140
		RBQ30T65A	65	30	0.69	15	200
V _RM = 100V Type
TO-277A		RBQ3RSM10B	100	3	0.7	3	80
		RBQ5RSM10B	100	5	0.7	5	140
		RBQ10RSM10B	100	10	0.7	10	250
TO-252		RBQ10BM100A	100	10	0.77	5	80
		RBQ15BM100A	100	15	0.71	7.5	140
		RBQ20BM100A	100	20	0.69	10	200
TO-263S		RBQ10NS100A	100	10	0.77	5	80
		RBQ20NS100A	100	20	0.77	10	140
		RBQ30NS100A	100	30	0.77	15	200
TO-220FN		RBQ10T100A	100	10	0.77	5	80
		RBQ20T100A	100	20	0.77	10	140
		RBQ30T100A	100	30	0.77	15	200