Rb551v 30

Updated July 3, 2026

Overview

Product sourcing insights & recommendations

23 来源

The RB551V-30 is a versatile Schottky barrier diode widely recognized for its ultra-low forward voltage ($V_F$) and small footprint, making it a staple in portable electronics and high-frequency rectification.

Product Specifications & Features

* Performance: Features a low forward voltage (Max 0.36V at 100mA) which significantly reduces power loss. It is rated for a repetitive peak reverse voltage ($V_{RM}$) of 30V and a mean rectifying current ($I_o$) of 500mA Rohm.

* Physical Characteristics: Typically housed in a SOD-323 package (also known as UMD2), optimized for high-density surface mounting in compact devices Mccsemi.

* Reliability: Built using a silicon epitaxial planar construction, providing high transient and ESD protection through a PN junction guard ring Wontop.

Market Trends & Industry Insights

* Lifecycle Status: Major manufacturers like ROHM have designated the RB551V-30 as NRND (Not Recommended for New Designs) Rohm. This signals a market shift where new electronic designs are transitioning to even smaller or more efficient components.

* Demand Drivers: Despite its NRND status, there remains robust demand in the spot market for maintenance, repair, and legacy product support, particularly in the automotive and industrial sectors Fusionww.

* Applications: It is primarily utilized in DC/DC converters, switching power supplies, and general-purpose switching for mobile phones and handheld gadgets Farnell.

Sourcing & Availability

Current B2B market data shows healthy availability through numerous distributors and manufacturers.

* Supply Chain: The component is widely listed on platforms like Alibaba.com, indicating a steady supply from both original manufacturers and secondary distributors.

* Alternatives: Designers are increasingly looking toward SOD-523 or DSN series diodes as modern replacements for space-constrained applications.

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Sources & References

23 sources cited · Verified industry data & reports

RB551V-30 : Diodes

ROHM Semiconductor

RB551V-30 : Diodes Page 1 Datasheet. Small mold type. (UMD2) 2) Low VF 3) High reliability. ●Absolute maximum ratings (Ta= 25°C) Reverse voltage (repetitive ...

RB551V-30 30V, 0.5A Schottky Barrier Diode

Micro Commercial Components

RB551V-30. 30V, 0.5A Schottky Barrier Diode. Features. • High Current Rectifier Schottky Diode. • Low Voltage, Low Inductance. • For Power Supply. Mechanical ...

RB551V-30

Mouser Electronics

FEATURES. • Ultra low Vf. • Low capacitance for reduced insertion loesses. • Reverse voltage rating of 30V.

Schottky barrier Diode

Octopart

Schottky barrier Diode RB551V-30 ●Applications ) ●Absolute maximum ratings (Ta=25°C) Storage temperature -40 to +125 Forward current surge peak

'RB551V-30F - Lite-On Semiconductor Corp.

Datasheet.Directory

DIODE REVERSE VOLTAGE – 30 Volts FORWARD CURRENT – 0.5 Ampere FEATURES • Low Forward Voltage Drop • Flat Lead SOD-323F Small Outline Plastic

RB551V30 Datasheet(PDF) - Pan Jit International Inc.

ALLDATASHEET.COM

This device is an extremely fast Schottky diode housed in the ultra-small SOD-323 package. Reverse voltage rating of 30V ●