Diodes Incorporated P6SMAJ7.0ADFQ-13

Overview

P6SMAJ7.0ADFQ-13 from Diodes Incorporated is an AEC-Q101 qualified, 600W surface-mount transient voltage suppressor (TVS) diode in the D-FLAT package, designed for automotive power line and signal line protection. It features a 7.0V reverse standoff voltage, 12.0V max clamping voltage at 50A peak pulse current, and glass-passivated die construction for robust surge immunity in harsh environments.

For engineers reviewing the P6SMAJ7.0ADFQ-13 datasheet, P6SMAJ7.0ADFQ-13 pinout, P6SMAJ7.0ADFQ-13 application, or P6SMAJ7.0ADFQ-13 equivalent, this device serves as a primary overvoltage clamp for 12V automotive systems-requiring precise V_RWM, low clamping ratio, AEC-Q101 qualification, and IATF16949 manufacturing traceability.

Technical Context

This unidirectional TVS diode operates with cathode-anode polarity and responds to transients within <1 ps, clamping ESD and load-dump surges per ISO 7637-2 and IEC 61000-4-2/5 standards. Its 64°C/W junction-to-terminal thermal resistance enables reliable power dissipation on compact PCBs with minimal copper area.

The device uses a planar passivated silicon junction optimized for stable breakdown behavior across -55°C to +150°C operation. Its 200µA max reverse leakage at 7.0V VRWM ensures minimal standby current draw in always-on vehicle modules such as body control units and infotainment power rails.

Key Specifications

Pinout & Package

Package: D-FLAT (2-pin, low-profile surface-mount), case material molded plastic UL 94V-0, cathode indicated by band. Dimensions: 4.65mm × 2.80mm × 1.10mm (L × W × H).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMAJ7.0A-Q and 1.5SMC7.0A, P6SMAJ7.0ADFQ-13 uniquely balances AEC-Q101 compliance, compact D-FLAT packaging, and precise 7.0V standoff for 12V automotive domains-making it optimal for space-constrained, safety-approved ECUs where qualification and thermal performance are non-negotiable.

Availability

P6SMAJ7.0ADFQ-13 is available at Aetrix Electronics and suitable for automotive body control modules, infotainment power supplies, and ADAS camera systems requiring stable component supply with full AEC-Q101 documentation and traceable sourcing.

Supply support for P6SMAJ7.0ADFQ-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 components for automotive, industrial, and consumer markets.

The P6SMAJ series belongs to Diodes' AEC-Q101-qualified TVS portfolio, engineered specifically for automotive power line and interface protection-emphasizing low clamping ratio, thermal robustness, and PPAP-ready manufacturing.

FAQ

What is the maximum clamping voltage of P6SMAJ7.0ADFQ-13 and under what test condition?

The maximum clamping voltage is 12.0V, measured at a peak pulse current (I_PP) of 50A using the standardized 10/1000µs double-exponential waveform per IEC 61000-4-5. This value is guaranteed across the full operating temperature range (-55°C to +150°C) and represents the upper limit of voltage seen by protected circuitry during surge events.

Is P6SMAJ7.0ADFQ-13 unidirectional or bidirectional, and how is polarity identified?

P6SMAJ7.0ADFQ-13 is a unidirectional TVS diode, with cathode (pin 1) marked by a visible band on the D-FLAT package. The banded end connects to the positive side of the protected circuit, while the anode (pin 2) connects to ground-enabling conduction only during reverse-biased overvoltage conditions.

Does P6SMAJ7.0ADFQ-13 meet automotive qualification requirements beyond AEC-Q101?

Yes-it is manufactured in IATF16949:2016 certified facilities, supports PPAP documentation, and is designated for automotive applications requiring specific change control. Its RoHS 3 and halogen-free compliance also satisfy Tier 1 environmental mandates, including JESD204 and ELV Directive alignment.

What is the thermal resistance from junction to ambient (RθJA) for P6SMAJ7.0ADFQ-13 on standard PCB layout?

RθJA is 115°C/W when mounted on a 1" × 1", 2oz FR-4 board with a 0.06" × 0.09" copper pad, per JEDEC JESD51-2. For tighter thermal performance, the alternate mounting condition (0.4" × 0.5" pad) yields 92°C/W-critical for sustained surge duty cycles in engine bay applications.