STMicroelectronics BTB06-600CWRG

Overview

BTB06-600CWRG from STMicroelectronics is a 6 A, 600 V snubberless triac in TO-220AB non-insulated package, designed for AC phase control and switching in inductive loads. It features 35 mA maximum gate trigger current (IGT), 200 V/µs minimum dV/dt at 125°C, and 50 A/µs critical dI/dt rating-enabling reliable commutation in motor speed controllers and heating regulation circuits.

For engineers reviewing the BTB06-600CWRG datasheet, BTB06-600CWRG pinout, BTB06-600CWRG application, or BTB06-600CWRG equivalent, key selection criteria include snubberless operation on inductive loads, logic-level-compatible gate sensitivity (35 mA IGT), thermal resistance (Rth(j-c) = 1.8 °C/W), and TO-220AB mechanical compatibility with standard heatsink mounting.

Technical Context

The BTB06-600CWRG is a 3-quadrant snubberless triac optimized for high-noise industrial environments with inductive loads. Its design eliminates external snubbers by guaranteeing ≥200 V/µs dV/dt immunity and ≥3.5 A/ms critical rate of decrease of main current (dI/dt)c at 125°C.

It operates across full AC cycles with RMS on-state current up to 6 A at Tc = 110°C, and supports phase-angle control via gate-triggered conduction in quadrants I, II, and III only-excluding quadrant IV to improve commutation robustness under reactive load conditions.

Key Specifications

Pinout & Package

BTB06-600CWRG uses the TO-220AB non-insulated package with metal tab electrically connected to MT2 (A2). The package has three leads: A1 (MT1), A2 (MT2), and G (Gate), mounted on a single-plane leadframe compatible with standard through-hole PCB footprints and clip-on heatsinks.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BTA06-600CWRG, BTB06-600CWRG offers identical snubberless performance but requires chassis-isolated heatsinking; versus BTB06-600BWRG, it eliminates snubber components and improves noise immunity-reducing BOM count and field failure risk in motor control.

Availability

BTB06-600CWRG is available at Aetrix Electronics and suitable for motor speed controllers, heating regulation systems, static relay replacements, and light dimmers requiring stable component supply and long-term industrial availability.

Supply support for BTB06-600CWRG 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, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.

This part belongs to the BTA/BTB06 series of snubberless triacs-engineered specifically for robust, maintenance-free AC power control in noisy industrial environments with inductive loads.

FAQ

Is BTB06-600CWRG compatible with zero-crossing trigger circuits?

Yes. BTB06-600CWRG supports zero-crossing triggering in quadrants I and III, enabling low-EMI turn-on. Its 35 mA IGT and 200 V/µs dV/dt ensure reliable synchronization with standard opto-triac drivers like MOC3021 or IL420, provided gate pulse width exceeds 10 µs and peak current reaches ≥50 mA.

Can BTB06-600CWRG replace a BTA06-600CWRG in an existing design?

Yes, with mechanical consideration. Electrically identical, BTB06-600CWRG uses a non-insulated TO-220AB tab (MT2-connected), whereas BTA06-600CWRG has 2500 VRMS insulated tab. Replacement requires verifying that the heatsink is either floating or referenced to MT2-otherwise, insulation or isolation barrier is mandatory.

What is the maximum allowable case temperature for continuous 6 A operation?

The datasheet specifies IT(RMS) = 6 A at Tc = 110°C for TO-220AB package. To sustain this, thermal design must limit junction temperature to ≤125°C using Rth(j-c) = 1.8 °C/W. With 1.55 V VTM, conduction loss is ~9.3 W; thus, heatsink-to-ambient thermal resistance must be ≤1.9 °C/W when ambient is 40°C.

Does BTB06-600CWRG require a heat sink in all applications?

Yes, for any sustained current >1 A. At 6 A RMS, power dissipation exceeds 9 W. Without a heatsink, junction temperature would exceed 125°C within seconds due to Rth(j-a) = 60 °C/W. Even at 2 A (≈2.2 W loss), a minimal heatsink is recommended for reliability in enclosed or elevated ambient environments.