Diodes Incorporated RS1BB-13

Overview

RS1BB-13 from Diodes Incorporated is a 100 V peak repetitive reverse voltage, 1.0 A average rectified current, fast recovery surface-mount rectifier in SMB package with 250 ns reverse recovery time and 1.3 V forward voltage drop at 1.0 A. It serves as a primary AC/DC input stage rectifier in compact offline power supplies for consumer adapters and industrial auxiliary rails.

For engineers reviewing the RS1BB-13 datasheet, RS1BB-13 pinout, RS1BB-13 application, or RS1BB-13 equivalent, key selection criteria include its 250 ns trr for high-frequency switching compatibility, 30 A non-repetitive surge rating for line transient robustness, RoHS-compliant matte tin plating, and SMB footprint suitability for automated SMT assembly with thermal relief via copper pour.

Technical Context

This device is a single-phase, silicon planar junction, glass-passivated fast recovery rectifier optimized for 50–400 kHz SMPS front-end stages. Its 250 ns reverse recovery time (measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A) enables reduced switching losses compared to standard recovery diodes.

The SMB package provides 0.093 g mass and 20 °C/W junction-to-terminal thermal resistance, supporting 1.0 A continuous conduction at 120 °C terminal temperature. Polarity is marked by a cathode band on the molded plastic body.

Key Specifications

Pinout & Package

SMB (DO-214AA) surface-mount package: molded plastic case, UL 94V-0 rated, cathode band marking, solderable matte tin terminals, 3.30–3.94 mm length × 4.06–4.57 mm width × 1.96–2.21 mm height.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar fast recovery rectifier applications.

Compared with STTH1L06S and MUR110E, RS1BB-13 balances 100 V capability, SMB SMT compatibility, 250 ns trr for mid-frequency SMPS, and 20 °C/W thermal resistance-making it optimal for cost-sensitive, volume-manufactured 1.0 A auxiliary supplies where lead-free compliance and automated assembly are mandatory.

Availability

RS1BB-13 is available at Aetrix Electronics and suitable for USB-C power adapters, industrial PLC auxiliary supplies, smart home gateways, and medical IoT sensor modules requiring stable component supply across multi-year production cycles.

Supply support for RS1BB-13 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the U.S.

The RS1x series targets cost-effective, high-reliability AC/DC rectification in consumer, industrial, and computing power supplies, emphasizing fast recovery, RoHS compliance, and SMT manufacturability.

FAQ

What is the maximum allowable junction temperature for RS1BB-13?

The absolute maximum junction temperature is +150 °C, but continuous operation is limited by terminal temperature: the device delivers full 1.0 A average current only when the terminal (case) temperature remains at or below 120 °C, as defined by the forward current derating curve in Figure 1 of DS15002 Rev. 9.

Is RS1BB-13 compatible with lead-free reflow soldering processes?

Yes-RS1BB-13 features matte tin plating compliant with J-STD-020C Level 1 moisture sensitivity, supporting standard Pb-free reflow profiles (peak 260 °C) without preconditioning. The SMB package's thermal mass and UL 94V-0 material ensure process stability and flammability safety.

Does RS1BB-13 have a specified reverse recovery charge (Qrr)?

No Qrr value is published in DS15002 Rev. 9. The datasheet specifies only trr = 250 ns under defined test conditions (IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A). Designers requiring Qrr must derive it experimentally or select alternatives like STTH1L06S, which publishes Qrr = 20 nC.

Can RS1BB-13 replace RS1B-13 in an existing design?

Yes-RS1BB-13 is the SMB-package variant of RS1B-13 (SMA), sharing identical electrical specifications (100 V VRRM, 250 ns trr, 1.3 V VFM). The change requires PCB footprint revision to accommodate the larger SMB dimensions (3.30–3.94 mm × 4.06–4.57 mm vs. SMA's 2.29–2.92 mm × 4.00–4.60 mm) and updated thermal pad layout.