Diodes Incorporated SMBJ6.0A-13-F

Overview

SMBJ6.0A-13-F from Diodes Incorporated is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with 6.0V reverse standoff voltage, 10.3V max clamping voltage at 58.3A peak pulse current, and SMB package. It protects DC power rails and I/O lines in industrial control systems, automotive ECUs, and telecom interfaces against ESD and lightning-induced surges.

For engineers reviewing the SMBJ6.0A-13-F datasheet, SMBJ6.0A-13-F pinout, SMBJ6.0A-13-F application, or SMBJ6.0A-13-F equivalent, key selection criteria include clamping voltage margin relative to system operating voltage, peak pulse current capability under 8.3ms waveform, unidirectional polarity requirement, and RoHS-compliant lead-free termination for automated SMT assembly.

Technical Context

This TVS diode operates as a fast-acting shunt protector triggered by overvoltage events exceeding its 6.40–7.23V breakdown range at 10mA test current. Its glass-passivated junction ensures stable leakage (<800µA at 6.0V VRWM) and repeatable clamping performance across -55°C to +150°C operating temperature.

The device responds to transients with sub-nanosecond turn-on time and handles non-repetitive 8.3ms half-sine surges up to 100A peak forward surge current. Its thermal design supports 5.0W steady-state dissipation at 75°C lead temperature, with derating to zero at 150°C junction temperature.

Key Specifications

Pinout & Package

Package: SMB (Surface Mount Body), molded plastic case per UL 94V-0, 3.30–3.94mm length × 4.06–4.57mm width × 1.96–2.21mm height, 0.1g weight, matte tin-plated terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMBJ6.0A-13-F, the Vishay alternative offers identical protection performance with alternate logistics formatting, while the ON Semiconductor variant provides lower leakage at the cost of slightly reduced VBR tolerance-making it preferable for low-quiescent-current designs but not for high-noise industrial environments requiring wider VBR margin.

Availability

SMBJ6.0A-13-F is available at Aetrix Electronics and suitable for industrial PLC I/O protection, automotive body control modules, and telecom base station power entry requiring stable component supply and full traceability.

Supply support for SMBJ6.0A-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 and manufacturing operations across Asia and the Americas.

This SMBJ series belongs to Diodes' transient voltage suppression portfolio, engineered specifically for high-reliability board-level surge and ESD protection in harsh electromagnetic environments.

FAQ

What is the polarity configuration of SMBJ6.0A-13-F?

SMBJ6.0A-13-F is a unidirectional TVS diode, indicated by the absence of the "C" suffix. It features a cathode band marking and conducts only when the cathode is at higher potential than the anode-suitable for DC rail protection where polarity is fixed and reverse-voltage blocking is required.

Can SMBJ6.0A-13-F be used in bi-directional signal lines like RS-485?

No-SMBJ6.0A-13-F is unidirectional and unsuitable for AC or bidirectional data lines. For RS-485 or CAN bus protection, use the bi-directional variant SMBJ6.0CA-13-F, which clamps symmetrically above and below ground and has no polarity marking.

What is the maximum allowable PCB trace length between SMBJ6.0A-13-F and the protected IC?

To maintain effective clamping, the combined trace inductance from TVS to protected node must remain below ~10nH. For typical 1oz copper, this limits total trace length to ≤8mm (including return path). Shorter paths (<4mm) are recommended for >10kV ESD events to avoid voltage overshoot beyond VC.

Does SMBJ6.0A-13-F require derating in high-temperature environments?

Yes-its peak pulse power must be linearly derated above +25°C at 4.8W/°C, and steady-state power drops to zero at +150°C junction temperature. At 100°C ambient, peak pulse capability falls to ~240W, requiring verification against expected surge energy in thermally constrained enclosures.