BTA16-800BRG STMicroelectronics BTA16-800BRG TRIAC, Through Hole, 3-pin 16A to 20A, Gate Trigger 1.3V 800V

Product Overview

The BTA16-800BRG from STMicroelectronics is a medium-power standard triac designed for reliable AC switching and phase control applications. With a 16A average on-state current rating and 800V blocking voltage, this rugged thyristor is ideally suited for motor speed controllers, lighting systems, and industrial power switching. The TO-220AB through-hole package offers excellent thermal dissipation, while UL1557 and RoHS compliance ensures industry-standard safety and environmental compatibility.

Key Features

✅ High Current Handling

• 16A continuous on-state current (IT RMS)
• 168A non-repetitive surge current (ITSMs)

✅ Robust Voltage Ratings

• 800V repetitive peak off-state voltage (VDRM/VRRM)
• 800V repetitive peak reverse voltage (VRRM)

✅ Optimized Triggering Performance

• Low gate trigger current (IGT = 35mA typical, 100mA max)
• 1.55V max on-state voltage (VT)

✅ Reliable Thermal & Switching Performance

• 4Q (snubberless) commutation capability
• -40??C to +125??C operating temperature range
• UL1557 certified (2500VRMS insulated tab version)

✅ Standards Compliance

• RoHS and REACH compliant
• Industrial-grade reliability

Technical Specifications

Electrical Characteristics

Thermal & Mechanical Specifications

Applications

The BTA16-800BRG is ideal for mains-powered AC switching and phase-control circuits, including:

1. Industrial Motor Control

• AC motor speed controllers
• Soft starters for pumps & compressors
• Industrial heater regulation

2. Lighting & Dimming Systems

• Leading/trailing-edge dimmers (incandescent & LED)
• Stage lighting controllers
• Smart lighting automation

3. Appliance & Power Switching

• Static relays for HVAC systems
• Power tools & kitchen equipment
• Solid-state relays (SSRs) replacement

4. Home Automation & Energy Control

• Smart plugs & sockets (Zigbee/Wi-Fi controlled)
• Energy-saving power switches
• Heating control systems (thermostats)

5. Universal AC Load Switching

• Fan speed regulators
• Transformer tap changers
• AC power tools soft-start circuits

Design Advantages

1. Reliable AC Switching Without Snubber Circuits

Unlike standard triacs, the BTA16-800BRG exhibits high commutation (4Q) capability, making it particularly resilient against inductive load turn-off spikes.
✅ Reduces need for RC snubbers in motor & transformer circuits

2. Low Trigger Current for Efficient Control

• 35mA (typical) trigger current?enables?direct interfacing with microcontrollers and optocoupler drivers.
  ✅?Compatible with MOC3041/MOC3063 optotriacs
  ✅?Easily driven by 3.3V/5V logic signals

3. Excellent Thermal Performance (TO-220AB)

The TO-220AB package provides:
✅ Clip bonding for low thermal resistance (Rth(j-a) ?? 70??C/W)
✅ Solderable leads for high-reliability PCBs
✅ Insulated variant (BTA16-800BW) available for better isolation

4. Industrial Temperature Resilience

With -40??C to +125??C operation, the BTA16-800BRG is suitable for:
✅ Outdoor power equipment
✅ Freezer/heating system controls
✅ Rugged industrial automation

5. UL & RoHS Compliance for Global Markets

✅ UL1557 certified (ref: 81734)
✅ RoHS & REACH compliant

BTA16 Series Comparison

Selection Guide:

• For 230V/400V AC supplies, choose BTA16-800BRG (800V blocking).
• For insulated designs (UL safety), use BTA16-800BW (2500Vrms isolation).
• If higher current (25A) is needed, upgrade to BTA16-800CW (TO-247 package).

Package & Handling Information

• Part Number:?BTA16-800BRG
• Package Type:?TO-220AB (3-pin)
• Polarity:?Bidirectional (T1-T2-MT1-MT2 interchangeable)
• Recommended PCB Footprint:?Per TO-220AB standard
• Storage Temperature:?-40??C to +150??C

Mounting Guidelines

• Use a heatsink for continuous high-current loads (>8A).
• Avoid excessive mechanical stress on leads.
• Apply thermal paste for improved heat dissipation.