STMicroelectronics Z0107MUF

Overview

Z0107MUF from STMicroelectronics is a 5 mA sensitive, 600 V repetitive peak off-state voltage (VDRM/VRRM) triac in SMBflat-3L package, rated for 1 A RMS on-state current (IT(RMS)), designed for AC phase-control switching in microcontroller-driven home appliance loads including electrovalves, pumps, and fan speed controllers.

For engineers reviewing the Z0107MUF datasheet, Z0107MUF pinout, Z0107MUF application, or Z0107MUF equivalent, this device supports direct GPIO-level gate drive with low IGT(1) = 5 mA max (Quadrants I–IV), offers dV/dt immunity ≥50 V/µs at 110 °C, and delivers stable latching/holding behavior across –40 to +125 °C junction temperature range.

Technical Context

Z0107MUF is a four-quadrant, bidirectional thyristor optimized for zero-crossing or phase-angle AC control. Its gate trigger sensitivity (IGT ≤ 5 mA in Q1–Q4) enables direct interfacing with 3.3 V/5 V MCU I/O pins without external amplification. The device operates with symmetrical forward/reverse blocking capability up to 600 V and maintains reliable turn-on under high dV/dt stress (≥50 V/µs at Tj = 110 °C).

Thermal performance is defined by Rth(j-t) = 14 °C/W (junction-to-tab, AC) and Rth(j-a) = 75 °C/W (junction-to-ambient, S(1) = 5 cm² copper surface), supporting 1 A RMS conduction in compact SMBflat-3L footprint. On-state voltage VT is ≤1.60 V at ITM = 1.4 A and 25 °C, dropping to ≤0.95 V at 125 °C due to negative temperature coefficient of Rd (≤400 mΩ).

Key Specifications

Pinout & Package

SMBflat-3L is a surface-mount, 3-terminal, flat-lead package with exposed cathode tab for thermal conduction. It features halogen-free molding compound, lead-free plating, and UL94 V0 epoxy compliance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with Z0107MN and Z0107MA, Z0107MUF provides superior thermal performance (14 °C/W vs. 25/60 °C/W) and full SMT manufacturability in a 3.3 × 5.6 mm footprint-critical for space-constrained, high-reliability home appliance PCBs.

Availability

Z0107MUF is available at Aetrix Electronics and suitable for home appliance control, fan speed regulation, and electrovalve actuation requiring stable component supply, consistent parametric performance, and long-term industrial lifecycle support.

Supply support for Z0107MUF 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, delivering intelligent power, analog, MEMS, and microcontroller solutions for industrial, automotive, and consumer markets.

Z0107MUF belongs to the Z01 series of standard-sensitivity triacs engineered specifically for cost-effective, reliable AC load switching in resource-constrained microcontroller systems-emphasizing low gate drive, high noise immunity, and SMT-ready packaging.

FAQ

What is the maximum ambient temperature for continuous 1 A RMS operation with Z0107MUF?

Z0107MUF supports 1 A RMS conduction up to 75 °C ambient temperature when mounted on a 5 cm² copper surface (Rth(j-a) = 75 °C/W). Above this, derating is required per Figure 3 in DS2116; at 100 °C ambient, maximum IT(RMS) drops to ~0.65 A.

Can Z0107MUF be driven directly from a 3.3 V MCU GPIO without a buffer?

Yes-Z0107MUF's IGT ≤ 5 mA (Q1) and VGT ≤ 1.3 V allow direct connection to 3.3 V GPIOs with a series resistor (e.g., 470 Ω) to limit peak gate current to <1 A (within IGM = 1 A spec). No external transistor buffer is needed for standard switching frequencies.

How does the SMBflat-3L package improve thermal performance over TO-92?

SMBflat-3L achieves Rth(j-t) = 14 °C/W versus TO-92's Rth(j-l) = 60 °C/W by using a thermally enhanced tab structure soldered directly to PCB copper. This reduces junction-to-board thermal resistance by >75%, enabling higher sustained current and longer lifetime in enclosed appliances.

Is Z0107MUF compliant with RoHS and REACH regulations?

Yes-Z0107MUF uses ECOPACK®-compliant materials: lead-free terminations, halogen-free molding compound, and UL94 V0 epoxy. Full compliance documentation, including substance declarations and test reports, is available from STMicroelectronics upon request.