Diodes Incorporated SMBJ16CA-13-F

Overview

SMBJ16CA-13-F from Diodes Incorporated is a bi-directional 600W surface-mount transient voltage suppressor (TVS) diode with 16V reverse standoff voltage, 26.0V max clamping voltage at 23.1A peak pulse current, and SMB package. It protects DC power rails and data lines in industrial motor drives, automotive body control modules, PoE-powered devices, and USB-C port interfaces against ESD and lightning-induced surges.

For engineers reviewing the SMBJ16CA-13-F datasheet, SMBJ16CA-13-F pinout, SMBJ16CA-13-F application, or SMBJ16CA-13-F equivalent, key selection criteria include clamping voltage margin relative to system operating voltage, peak pulse current capability under 8.3ms waveform, bi-directional symmetry for AC-coupled signal lines, and RoHS-compliant lead-free plating for automated reflow assembly.

Technical Context

This TVS diode operates as a voltage-clamped shunt protector triggered by reverse-biased avalanche breakdown. Its glass-passivated silicon junction ensures stable breakdown characteristics over temperature (–55°C to +150°C) and long-term reliability under repetitive surge stress.

Designed for unidirectional or bi-directional transient suppression, SMBJ16CA-13-F delivers symmetrical clamping behavior across both polarities-critical for protecting balanced interfaces like RS-485, CAN FD, and Ethernet PHYs-while maintaining low leakage (<5.0 µA at 16V) and fast response time (<1.0 ns).

Key Specifications

Pinout & Package

Package: SMB (DO-214AA), molded plastic case with UL 94V-0 flammability rating, 0.1 g 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 voltage suppression applications.

Compared with SMBJ16CA-13-F, the Littelfuse part offers telecom-specific safety certifications but looser leakage control, while the Vishay variant adds automotive qualification at the cost of marginally higher clamping-making Diodes' version optimal for cost-sensitive industrial designs requiring tight clamping and low leakage.

Availability

SMBJ16CA-13-F is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, USB-C power delivery ports, and RS-485 industrial networks requiring stable component supply across multi-year production cycles.

Supply support for SMBJ16CA-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 centers across Asia and manufacturing facilities in China, Taiwan, and the U.S.

The SMBJ series belongs to Diodes' transient voltage suppression portfolio, engineered specifically for high-energy surge protection in space-constrained surface-mount applications where reliability under repeated transient stress is critical.

FAQ

What is the maximum clamping voltage of SMBJ16CA-13-F and under what test condition is it specified?

The maximum clamping voltage is 26.0 V, measured at a peak pulse current (I_PP) of 23.1 A using a 10/1000 µs double-exponential waveform per IEC 61000-4-5. This value represents the upper bound of voltage seen by protected circuitry during worst-case surge events and is guaranteed across the full operating temperature range (–55°C to +150°C).

Is SMBJ16CA-13-F suitable for protecting USB 3.2 Gen 2 differential pairs?

No-SMBJ16CA-13-F is not recommended for high-speed data lines due to its typical junction capacitance of ~200 pF at zero bias (per DS19002 Fig. 2), which would severely attenuate signals above 100 MHz. For USB 3.2 Gen 2 (10 Gbps), low-capacitance TVS arrays such as D3V3Z5U-02 or SP1003-02 are required instead.

How does the bi-directional configuration affect PCB layout versus a uni-directional SMBJ16A-13-F?

The bi-directional SMBJ16CA-13-F has no cathode band marking and requires no orientation during placement, simplifying automated assembly and eliminating risk of reverse installation. In contrast, the uni-directional SMBJ16A-13-F must be oriented with the cathode band toward the protected line's positive rail, adding placement verification steps and potential field failure if misoriented.

Does SMBJ16CA-13-F meet AEC-Q200 requirements for automotive use?

No-SMBJ16CA-13-F is qualified for commercial temperature range (–55°C to +150°C) and RoHS compliance, but it is not AEC-Q200 stress-tested or certified. For automotive applications requiring AEC-Q200 Grade 2 qualification, consider the Vishay P6SMB16CA or Diodes' automotive-qualified SMAJ16CA-13-F variant, which undergoes extended temperature cycling and vibration testing.