STMicroelectronics Z0107MA 2AL2

Overview

Z0107MA 2AL2 from STMicroelectronics is a 5 mA sensitive, 600 V repetitive peak off-state voltage (VDRM/VRRM), 1 A RMS on-state current triac in TO-92 straight-lead package, designed for AC phase-control switching in low-power home appliance loads including electrovalves, small lamp dimmers, and fan speed controllers.

For engineers reviewing the Z0107MA 2AL2 datasheet, Z0107MA 2AL2 pinout, Z0107MA 2AL2 application, or Z0107MA 2AL2 equivalent, key selection criteria include gate trigger current sensitivity (5 mA max), thermal resistance (Rth(j-l) = 60 °C/W), dV/dt immunity (50 V/µs min), and compatibility with direct microcontroller GPIO drive without external amplification.

Technical Context

This triac operates in all four quadrants (I–IV) with guaranteed IGT ≤ 5 mA in Quadrants I, II, and III at 25 °C, enabling reliable triggering from standard 3.3 V or 5 V MCU outputs. Its static dV/dt immunity of ≥50 V/µs at Tj = 110 °C ensures robust noise immunity in noisy AC line environments.

The device features a low on-state voltage (VT ≤ 1.60 V at 25 °C, ≤0.95 V at 125 °C) and dynamic resistance ≤400 mΩ, minimizing conduction losses in thermally constrained TO-92 applications. Holding current (IH ≤ 10 mA) and latching current (IL ≤ 15 mA) are specified across –40 to +125 °C, supporting stable turn-on/turn-off behavior over full industrial temperature range.

Key Specifications

Pinout & Package

Package: TO-92 with straight leads (plastic), UL94 V0 epoxy, lead-free plating, halogen-free molding resin. Dimensions per Table 6: A = 1.35 mm, B = 4.70 mm, C = 2.54 mm, D = 4.40 mm, E = 12.70 mm, F = 3.70 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with Z0107NA 2AL2, this part trades 200 V off-state margin for lower cost and identical drive simplicity; versus BT134-500D, it sacrifices current headroom and thermal scalability to retain ultra-low-profile TO-92 integration and zero heatsink requirement.

Availability

Z0107MA 2AL2 is available at Aetrix Electronics and suitable for home appliance control, electrovalve actuation, and fan speed regulation requiring stable component supply and long-term industrial lifecycle support.

Supply support for Z0107MA 2AL2 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, specializing in power management, analog, MEMS, and microcontrollers for industrial, automotive, and consumer markets.

Z01 series triacs are part of ST's general-purpose power switching portfolio, engineered specifically for cost-sensitive, low-to-medium power AC control in white goods and building automation where reliability, gate sensitivity, and package flexibility are critical.

FAQ

What is the maximum allowable gate trigger pulse width for reliable turn-on?

The datasheet specifies IGT test condition with tp = 20 µs for peak gate current (IGM = 1 A), and minimum pulse width for guaranteed turn-on is 10 µs. For robust operation across temperature and manufacturing spread, use ≥20 µs pulses with ≥5 mA amplitude referenced to A1. Shorter pulses risk incomplete latching in Quadrant IV at high junction temperature.

Can Z0107MA 2AL2 be used without a snubber network?

Yes-its validated dV/dt immunity of ≥50 V/µs and critical dV/dt (dV/dt)c ≥2 V/µs at 110 °C enable snubberless operation with resistive and moderately inductive loads (e.g., lamps, solenoids, small fans). For highly inductive loads like large motors, a small RC snubber (e.g., 100 Ω + 100 nF) is still recommended to suppress voltage overshoot during commutation.

What is the recommended PCB footprint and copper area for thermal performance?

For TO-92 straight-lead mounting, use the footprint in Figure 16 with 1.27 mm pad pitch and ≥25 mm² total copper area connected to A1/A2 leads. To achieve rated 1 A IT(RMS) at TL = 50 °C, provide ≥1 cm² of 1 oz copper pour per lead on the primary side, with thermal vias to inner layers if multilayer. Avoid soldermask over thermal pads.

How does junction temperature affect gate trigger current IGT?

IGT increases with junction temperature: Figure 6 shows IGT at 125 °C is ~2.2× its value at 25 °C. At 125 °C, max IGT rises from 5 mA to ~11 mA. Designers must ensure MCU GPIO can source ≥12 mA at worst-case VDD (e.g., 3.0 V) and temperature to guarantee turn-on margin across full operating range.