Diodes Incorporated SMBJ110A-13-F

Overview

SMBJ110A-13-F from Diodes Incorporated is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with 110V reverse standoff voltage, 122V minimum breakdown voltage at 1mA, 177V maximum clamping voltage at 3.4A peak pulse current, and SMB package. It protects DC power rails and signal lines in industrial motor drives against ESD and lightning-induced surges.

For engineers reviewing the SMBJ110A-13-F datasheet, SMBJ110A-13-F pinout, SMBJ110A-13-F application, or SMBJ110A-13-F equivalent, key selection criteria include clamping voltage margin relative to system operating voltage, peak pulse current capability under 8.3ms half-sine waveform, thermal derating above +25°C, and RoHS-compliant matte tin lead finish for lead-free reflow compatibility.

Technical Context

This TVS operates as a voltage-clamped shunt protector: under normal bias (VRWM ≤ 110V), leakage remains ≤5.0μA; during transients exceeding VBR (122–140V), it avalanches to clamp voltage ≤177V at IPP = 3.4A. Its glass-passivated die ensures stable breakdown characteristics across temperature.

The device uses a single P-N junction structure optimized for fast response (<1.0ns typical), low capacitance (<100pF at 1MHz, zero bias), and high surge robustness-capable of withstanding 100A non-repetitive forward surge (8.3ms half-sine) and 5.0W steady-state dissipation at TL = +75°C.

Key Specifications

Pinout & Package

Package: SMB (Surface-Mount Body), molded plastic case rated UL 94V-0, 0.1g mass, matte tin-plated terminals solderable per MIL-STD-202 Method 208.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient suppression applications.

Compared with SMBJ110A-E3/52, the Diodes Incorporated SMBJ110A-13-F offers superior thermal robustness (5.0W vs. 3.5W PM(AV)) and tighter leakage (5μA vs. 10μA), making it better suited for high-temperature industrial control cabinets; versus P6SMB110A, it delivers identical protection performance with verified RoHS 2 and halogen-free compliance documentation.

Availability

SMBJ110A-13-F is available at Aetrix Electronics and suitable for industrial motor drives, DC power input protection, and renewable energy monitoring systems requiring stable component supply and full traceability.

Supply support for SMBJ110A-13-F 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, manufacturing, and sales operations across Asia, Europe, and North America.

SMBJxxA is part of Diodes' transient voltage suppressor portfolio designed specifically for high-reliability industrial, automotive, and telecom surge protection-emphasizing tight parameter distribution, extended temperature operation, and process-controlled glass passivation.

FAQ

What is the maximum clamping voltage of SMBJ110A-13-F at its rated peak pulse current?

The maximum clamping voltage (VC) is 177V at a peak pulse current (IPP) of 3.4A, measured using the standard 8.3ms single half-sine waveform per IEC 61000-4-5. This value defines the upper voltage limit imposed on protected circuitry during surge events and is guaranteed across the full operating temperature range of −55°C to +150°C.

Is SMBJ110A-13-F suitable for bidirectional signal line protection?

No. SMBJ110A-13-F is a unidirectional TVS diode, indicated by the absence of "C" in its part number. It conducts only during reverse-bias overvoltage events and must be oriented with cathode toward the protected line's higher potential. For bidirectional protection (e.g., AC lines or data buses), the "C" suffix variant SMBJ110CA-13-F is required.

How does the SMB package of SMBJ110A-13-F affect PCB layout and thermal performance?

The SMB package measures 5.59mm × 4.57mm × 2.21mm with a cathode band marking and requires a recommended pad layout per Diodes' package outline (SMB). Its thermal resistance from junction-to-lead is optimized for 5.0W steady-state dissipation at TL = +75°C, necessitating adequate copper pour and via stitching to internal ground planes for reliable power handling in high-ambient environments.

Does SMBJ110A-13-F meet halogen-free and antimony-free "Green" requirements?

Yes. SMBJ110A-13-F is certified halogen- and antimony-free per Diodes Incorporated's "Green" definition: <900ppm bromine, <900ppm chlorine (total Br+Cl <1500ppm), and <1000ppm antimony compounds. This compliance is documented in the device's material declaration and aligns with IPC-1752 reporting standards.