Diodes Incorporated P6SMAJ8.0ADF-13

Overview

P6SMAJ8.0ADF-13 from Diodes Incorporated is a 600W surface-mount transient voltage suppressor (TVS) diode designed for unidirectional overvoltage protection in DC power rails and signal lines. It features an 8.0V reverse standoff voltage, 8.89–10.23V breakdown range at 1.0mA test current, 13.6V max clamping voltage at 44.1A peak pulse current, and D-FLAT package for space-constrained PCB layouts-used in industrial power supplies and automotive body control modules.

For engineers reviewing the P6SMAJ8.0ADF-13 datasheet, P6SMAJ8.0ADF-13 pinout, P6SMAJ8.0ADF-13 application, or P6SMAJ8.0ADF-13 equivalent, key selection criteria include clamping voltage margin relative to protected IC V_DD, thermal resistance under surge conditions, IEC 61000-4-5 compliance readiness, and D-FLAT footprint compatibility with automated assembly.

Technical Context

This unidirectional TVS diode operates as a shunt-clamping device that remains high-impedance below VRWM (8.0V) and rapidly transitions to low-impedance conduction above VBR (min 8.89V), limiting transient energy to safe levels. Its glass-passivated junction ensures stable leakage (<50µA at VRWM) and repeatable breakdown behavior across temperature.

The device uses a single-junction planar structure optimized for fast response (<1ps) to 10/1000µs transients and handles up to 600W non-repetitive peak pulse power. Thermal performance depends on PCB copper pad area: R_θJA is 92°C/W on 0.4"×0.5" 2oz copper, enabling reliable operation up to +150°C junction temperature.

Key Specifications

Pinout & Package

Package: D-FLAT (low-profile surface-mount, 2-terminal, cathode-banded). Dimensions: 4.65mm × 2.80mm × 1.10mm (L × W × H), 0.035g weight, UL 94V-0 molded plastic case.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar unidirectional TVS diode applications.

Compared with SMAJ8.0A-13-F and 1.5SMC8.0A, P6SMAJ8.0ADF-13 delivers optimal balance of compact D-FLAT footprint, verified 92°C/W thermal performance on minimal copper, and exact 600W IEC 61000-4-5 compliance headroom-making it preferred for space- and thermally constrained industrial and automotive PCBs.

Availability

P6SMAJ8.0ADF-13 is available at Aetrix Electronics and suitable for industrial PLC I/O protection, automotive body control modules, and DC power supply input stages requiring stable component supply, consistent surge performance, and RoHS-compliant manufacturing.

Supply support for P6SMAJ8.0ADF-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, specializing in high-reliability protection, power management, and signal integrity solutions for industrial, automotive, and computing markets.

The P6SMAJ series belongs to Diodes' transient voltage suppressor portfolio, engineered specifically for robust, low-profile surge protection in space-constrained environments where thermal efficiency and repeatability under repetitive transients are critical.

FAQ

What is the maximum operating temperature for P6SMAJ8.0ADF-13?

The device supports continuous operation from –55°C to +150°C junction temperature. At ambient temperatures above +75°C, derating applies: peak pulse power decreases linearly per Figure 1, reaching ~50% at +125°C ambient on a 0.4"×0.5" 2oz copper pad. Steady-state power dissipation is rated at 1.5W at TL = +75°C.

Does P6SMAJ8.0ADF-13 meet IEC 61000-4-5 standards?

P6SMAJ8.0ADF-13 is designed to meet IEC 61000-4-5 Level 4 (4kV line-to-earth, 2kV line-to-line) when implemented with appropriate PCB layout-specifically using ≥0.2"×0.25" copper pads and short, low-inductance ground paths. Its 600W rating and 13.6V clamping voltage provide margin beyond the standard's 1kA/2Ω test waveform.

How does the D-FLAT package affect solder joint reliability?

The D-FLAT package uses a matte tin-annealed copper leadframe with solderability validated per MIL-STD-202 Method 208. Its flat, dual-terminal geometry minimizes mechanical stress during thermal cycling, and JEDEC-compliant Level 1 moisture sensitivity allows standard reflow without baking-reducing voiding risk and improving first-pass yield in high-volume SMT lines.

Can P6SMAJ8.0ADF-13 be used in bidirectional configurations?

No-P6SMAJ8.0ADF-13 is strictly unidirectional. Its schematic symbol and internal structure support clamping only for positive transients on the cathode side. For bidirectional protection (e.g., AC lines or data buses), a dedicated bidirectional TVS such as P6SMBJ8.0C-13 must be used; mixing two unidirectional devices does not replicate true symmetrical clamping behavior.