NXP Semiconductors ACTT6-800E,127

Overview

ACTT6-800E from NXP Semiconductors is an AC thyristor triac power switch in TO-220AB (SOT78) package, rated for 800 V repetitive peak off-state voltage, 6 A RMS on-state current, and 51 A non-repetitive peak on-state current. It features sensitive gate triggering (≤10 mA), self-protective clamping (VCL = 850 V), and high dV/dt immunity (500 V/µs), enabling direct microcontroller interfacing in AC motor and appliance control circuits.

For engineers reviewing the ACTT6-800E datasheet, ACTT6-800E pinout, ACTT6-800E application, or ACTT6-800E equivalent, this page delivers verified electrical parameters, thermal resistance (Rth(j-mb) = 2.0 K/W), IEC 61000-4-5 surge compliance, quadrant III-only triggering behavior, and pin-compatible alternatives for white goods and industrial AC load switching.

Technical Context

The ACTT6-800E is a planar passivated, snubberless triac with integrated over-voltage clamping structure, supporting full-cycle AC conduction and safe self-turn-on during high-energy transients. Its gate trigger current is specified ≤10 mA across all three active quadrants (I+, III+, III−), with latching and holding currents of ≤30 mA and ≤25 mA respectively at 25 °C.

It exhibits robust commutation performance: dIcom/dt = 10 A/ms under snubberless conditions (dVcom/dt = 1 V/µs), and maintains stable off-state blocking up to 800 V with ID ≤ 0.5 mA at 125 °C. Thermal design is enabled by low junction-to-mounting-base resistance (2.0 K/W full cycle) and mounting base temperature limit of 108 °C.

Key Specifications

Pinout & Package

ACTT6-800E uses the TO-220AB (SOT78) plastic single-ended package with heatsink-mounted mounting base (pin 2 / mb). The device has three leads: Pin 1 = CM (common), Pin 2 = LD (load), Pin 3 = G (gate), with mounting base electrically connected to LD (Pin 2).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar AC triac switching applications.

Compared with ACTT6-800E, BTB16-800CW offers higher current headroom but adds layout complexity due to isolation and external protection needs, while MAC16A8YG trades clamping capability for raw current rating-making ACTT6-800E optimal for compact, self-protected 6 A AC switching in white goods.

Availability

ACTT6-800E is available at Aetrix Electronics and suitable for AC fan control, reversing induction motor drives, and white goods compressor switching requiring stable component supply, long lifecycle support, and consistent parametric performance across production batches.

Supply support for ACTT6-800E 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

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer markets.

The ACTT6-800E belongs to NXP's AC power switching portfolio, designed specifically for reliable, self-protected AC load control in cost-sensitive, space-constrained white goods and industrial appliances.

FAQ

What is the maximum junction temperature rating for ACTT6-800E?

The ACTT6-800E has a maximum junction temperature (Tj) rating of 125 °C, as defined in its limiting values table. This rating must be respected in thermal design-junction temperature is calculated as Tj = Tmb + (Ptot × Rth(j-mb)), where Tmb is mounting base temperature and Ptot is total power dissipation. Exceeding 125 °C risks permanent degradation of the triac's blocking capability and clamping performance.

Does ACTT6-800E support triggering in all four quadrants?

No, the ACTT6-800E supports triggering only in three quadrants: I+ (MT2+, Gate+), III+ (MT2−, Gate+), and III− (MT2−, Gate−). Quadrant II (MT2+, Gate−) is not functional. This is explicitly stated in the "Features and benefits" section and confirmed in Figure 8 of the datasheet, which shows normalized IGT only for those three configurations. Designers must ensure gate drive polarity aligns accordingly.

Can ACTT6-800E replace standard triacs without PCB changes?

Yes, ACTT6-800E is pin compatible with standard triacs in TO-220AB packages, including identical lead spacing, mounting hole, and terminal assignments (Pin 1 = MT1/CM, Pin 2 = MT2/LD, Pin 3 = Gate). However, because its mounting base is electrically connected to Pin 2 (LD), isolation requirements must be verified-unlike some isolated-tab triacs, ACTT6-800E's tab is not insulated.

What is the clamping voltage (VCL) of ACTT6-800E and how is it tested?

The ACTT6-800E has a clamping voltage (VCL) of 850 V, measured at ICL = 0.1 mA with a 1 ms pulse width and Tj = 25 °C (Table 4, Limiting Values). This parameter reflects the voltage at which the internal clamping structure activates to divert transient energy, providing self-protection against IEC 61000-4-5 surges without external components. It is not a breakdown rating but a controlled conduction threshold.

Is ACTT6-800E qualified for automotive applications?

No, the ACTT6-800E is not automotive-qualified. Per Section 11.3 of the datasheet, NXP explicitly states that unless otherwise indicated, products like ACTT6-800E are "non-automotive qualified" and "not suitable for automotive use." It lacks AEC-Q101 qualification, automotive-grade temperature range extension, and automotive-specific reliability testing-making it appropriate only for industrial, consumer, and white goods applications.