STMicroelectronics Z0107NA 2AL2

Overview

Z0107NA from STMicroelectronics is a 5 mA sensitive, 800 V repetitive peak off-state voltage triac in TO-92 package, rated for 1 A RMS on-state current. It functions as a bidirectional AC power switch in low-power control circuits, with guaranteed gate trigger current ≤5 mA in Quadrants I, II, and III, enabling direct drive from 3.3 V/5 V microcontrollers in home appliance motor and lamp loads.

For engineers reviewing the Z0107NA datasheet, Z0107NA pinout, Z0107NA application, or Z0107NA equivalent, key selection criteria include gate sensitivity (IGT ≤5 mA), dV/dt immunity (≥50 V/µs at Tj = 110 °C), thermal resistance (Rth(j-l) = 60 °C/W), and compatibility with zero-crossing or phase-angle AC dimming topologies.

Technical Context

This triac operates in all four quadrants with symmetrical triggering behavior, supporting both positive and negative half-cycle conduction. Its gate structure is optimized for low IGT (≤5 mA max) while maintaining robust dV/dt immunity (≥50 V/µs) and latching current (IL ≤10 mA) across temperature.

It features a dynamic on-state resistance of ≤400 mΩ at 125 °C and threshold voltage ≤0.95 V, ensuring low conduction loss in thermally constrained TO-92 packages. The device meets IEC 61000-4-5 surge immunity requirements via its 8.5 A non-repetitive surge rating at 60 Hz.

Key Specifications

Pinout & Package

TO-92 (straight leads) package with 3-terminal configuration: A1 (MT1), A2 (MT2), and G (Gate). Leads are straight (not preformed), suitable for through-hole mounting and wave soldering. Thermal path relies on lead conduction; no tab thermal interface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with Z0107MA and BT134-600, Z0107NA uniquely balances 800 V blocking capability, 5 mA gate sensitivity, and TO-92 form factor-making it optimal for space- and energy-constrained 230 VAC appliance controls where direct MCU drive and transient resilience are mandatory.

Availability

Z0107NA is available at Aetrix Electronics and suitable for home appliance electrovalve control, fan speed regulation, small lamp dimming, and door lock actuation requiring stable component supply across high-volume production cycles.

Supply support for Z0107NA 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

Z01 series triacs belong to ST's general-purpose AC power switching product line, engineered specifically for cost-sensitive, thermally constrained home appliance applications requiring reliable, low-IGT, through-hole mounted AC control.

FAQ

What is the maximum junction temperature for continuous operation?

The Z0107NA has an operating junction temperature range of –40 °C to +125 °C. For continuous 1 A RMS operation in TO-92, the lead temperature must be held ≤50 °C per Table 1, corresponding to a maximum ambient of ~40 °C with natural convection and standard PCB copper area.

Can Z0107NA be used with zero-crossing SSR drivers?

No-Z0107NA is a discrete triac, not a solid-state relay. It requires external zero-crossing detection circuitry (e.g., optocoupler + comparator) to generate gate pulses aligned with AC zero crossings; it does not integrate isolation or timing logic.

Is the TO-92 package lead-form pre-bent or straight?

The Z0107NA 2AL2 variant uses TO-92 with straight leads (not preformed), as confirmed in Table 9 and Figure 16. This configuration supports standard wave soldering and matchbox-style ammopack handling without lead deformation.

What is the minimum gate pulse width required for reliable turn-on?

While not explicitly specified in the datasheet, reliable triggering is achieved with ≥20 µs gate pulses at IGT level, based on IGM = 1 A peak gate current rating (tp = 20 µs) and standard triac turn-on time <1 µs. Shorter pulses may fail to establish latching under worst-case temperature and load conditions.