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Home > Products > Discrete Semiconductor Products > Thyristors > TRIACs

STMicroelectronics BTA16-700BRG

Name: BTA16-700BRG
Brand: STMicroelectronics
SKU: BTA16-700BRG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BTA16-700BRG

Manufacturer:: STMicroelectronics

Category:: TRIACs

Package:: TO-220-3

Datasheet:: BTA16-700BRG.pdf

Description:: TRIAC 700V 16A TO220

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Product details

Overview

BTA16-700BRG from STMicroelectronics is a snubberless, logic-level, 16A RMS, 700V blocking voltage triac in insulated TO-220AB package. It operates in quadrants I, II, and III with 10 mA max gate trigger current (IGT), 1.3 V max gate trigger voltage (VGT), and supports inductive load switching up to 125°C junction temperature. It is used in AC motor speed control, heating regulation, and solid-state relay designs requiring high commutation robustness.

For engineers reviewing the BTA16-700BRG datasheet, BTA16-700BRG pinout, BTA16-700BRG application, or BTA16-700BRG equivalent, key selection criteria include its 700V VDRM rating, 10 mA IGT for microcontroller-compatible triggering, insulated tab (2500 V RMS isolation), snubberless operation on inductive loads, and thermal resistance of 2.1 °C/W (junction-to-case).

Technical Context

This triac belongs to ST's SNUBBERLESS™ logic-level series optimized for direct drive from low-power controllers without external gate buffers. Its three-quadrant operation eliminates false triggering from negative gate pulses, while high dV/dt immunity (≥500 V/µs at 125°C) ensures reliable turn-off during phase-controlled AC waveforms.

The insulated TO-220AB package integrates a ceramic pad enabling 2500 V RMS isolation between the heatsink-mounting tab (A2) and internal die, satisfying UL E81734 certification. Thermal performance is characterized by Rth(j-c) = 2.1 °C/W, supporting 16 A RMS conduction at Tc = 85°C without forced cooling.

Key Specifications

Parameter	Value and Actual Design Meaning
VDRM / VRRM	700 V - Maximum repetitive peak off-state voltage; defines safe AC line voltage handling up to 495 V RMS (700 V / √2).
IT(RMS)	16 A - Continuous RMS on-state current at Tc = 85°C; enables direct replacement of mechanical relays in 2 kW resistive or 1.5 kW inductive loads.
IGT (Q1)	10 mA max - Gate trigger current in quadrant I; compatible with 3.3 V/5 V GPIOs without external amplification.
dV/dt (min)	500 V/µs - Critical rate of rise of off-state voltage at 125°C; prevents spurious turn-on in noisy inductive environments.
Rth(j-c)	2.1 °C/W - Junction-to-case thermal resistance; allows calculation of maximum power dissipation (Pmax ≈ (125°C − 85°C)/2.1 ≈ 19 W) at rated case temperature.
VTM	1.55 V max - On-state voltage at 22.5 A pulse; determines conduction loss (≈35 W at 16 A RMS) and heatsink sizing requirement.
I²t	144 A²s - Fusing I²t value for 10 ms pulse; informs fuse coordination and short-circuit withstand capability.

Pinout & Package

Package: Insulated TO-220AB (UL-certified, 2500 V RMS tab isolation, 2.1 °C/W Rth(j-c)). Tab is electrically connected to A2 terminal.

Pin/Terminal	Circuit Role	Design Meaning
A1	Main Terminal 1	AC load return path; referenced to gate for triggering; must be isolated from heatsink when tab is mounted.
A2	Main Terminal 2 / Tab	AC line input; electrically tied to insulated metal tab; provides 2500 V RMS isolation from heatsink mounting surface.
G	Gate	Control input for triac turn-on; requires ≥10 mA pulse (12 V, 33 Ω load) in quadrants I/II/III; polarity-sensitive relative to A1.

Key Features

Feature	Design Value
SNUBBERLESS™ operation	Enables direct switching of inductive loads (e.g., motors, solenoids) without external RC snubber networks, reducing BOM count and PCB area.
Logic-level gate sensitivity	10 mA max IGT allows direct drive from MCU GPIOs or low-power optocouplers (e.g., MOC3021), eliminating gate driver stages.
Insulated TO-220AB package	2500 V RMS isolation between tab (A2) and PCB/heatsink satisfies reinforced insulation requirements for Class I appliances per IEC 60335.
Three-quadrant triggering	Operates only in quadrants I, II, and III-rejects false turn-on from negative gate pulses common in noisy industrial environments.
High commutation performance	Rated for 160 A non-repetitive surge (50 Hz, 20 ms) and 144 A²s I²t, supporting brief overloads in motor start-up or heater inrush scenarios.

Applications

AC Motor Speed Control

Heating Regulation

Use Scenario: Variable-speed control of single-phase induction motors in fans, pumps, and compressors using phase-angle firing.

IC Role / Device Role / Timing Role: Main AC power switch triggered synchronously with zero-crossing detection; handles full motor current (≤16 A RMS) and inductive flyback energy.

Use Value: Eliminates need for snubber circuits due to 500 V/µs dV/dt immunity and high commutation margin, improving reliability and reducing component count.

Use Scenario: Proportional power delivery to resistive heating elements in ovens, water heaters, and industrial process equipment.

IC Role / Device Role / Timing Role: High-current AC switch modulating power via leading-edge phase control; conducts continuous 16 A RMS at ambient temperatures up to 85°C.

Use Value: Insulated tab enables safe mounting to grounded metal enclosures while maintaining 2500 V RMS isolation, simplifying safety certification.

Solid-State Relay Module

Light Dimmer Circuit

Use Scenario: Replacement for electromechanical relays in PLC output modules and building automation systems requiring >100,000 cycle life.

IC Role / Device Role / Timing Role: Primary power semiconductor in opto-isolated SSR design; switches 240 V AC loads with zero-voltage turn-on capability.

Use Value: 10 mA IGT ensures compatibility with standard 4N25/MOC3041 optocouplers, enabling compact, low-power drive circuitry.

Use Scenario: Residential and commercial incandescent/halogen lamp dimming using trailing-edge or leading-edge phase control.

IC Role / Device Role / Timing Role: Bidirectional AC switch synchronized to line voltage zero crossings; delivers smooth brightness adjustment without audible noise.

Use Value: Three-quadrant operation suppresses false triggering from EMI-induced gate transients, preventing flicker or erratic dimming behavior.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BTA16-700B	Non-insulated TO-220AB package; Rth(j-c) = 1.2 °C/W; tab electrically connected to A2 (no isolation).	Requires insulated mounting hardware or thermal pad for safety-critical applications; better thermal performance in space-constrained layouts.	Select when heatsink isolation is managed externally and lower thermal resistance is prioritized over certification simplicity.
T1635-700G	D²PAK surface-mount package; 35 mA IGT; snubberless; Rth(j-c) = 1.2 °C/W; no tab isolation.	Designed for automated assembly and high-density PCBs; unsuitable for direct heatsink mounting without isolation interface.	Select for SMT production where board space is limited and thermal management uses copper pour rather than discrete heatsinks.

Compared with BTA16-700B and T1635-700G, BTA16-700BRG uniquely combines logic-level sensitivity (10 mA IGT), snubberless inductive switching, and certified 2500 V RMS tab isolation-making it optimal for safety-compliant, through-hole AC control modules where gate drive simplicity and regulatory approval are critical.

Availability

BTA16-700BRG is available at Aetrix Electronics and suitable for AC motor control, heating regulation, solid-state relay design, and lighting dimmer applications requiring stable component supply, long-term lifecycle support, and UL-certified insulation integrity.

Supply support for BTA16-700BRG 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.

The BTA/BTB16 and T16 series triacs were developed to replace electromechanical relays in AC power control, emphasizing snubberless operation, logic-level gate drive, and safety-certified packaging for appliance and industrial equipment.

FAQ

What is the maximum junction temperature for continuous operation?

The BTA16-700BRG has a specified operating junction temperature range of −40°C to +125°C. For continuous 16 A RMS conduction, the case temperature must not exceed 85°C to maintain reliability and avoid thermal runaway, as defined in the Absolute Maximum Ratings table under IT(RMS) conditions.

Can this triac be used with a microcontroller GPIO without a driver transistor?

Yes-its 10 mA maximum gate trigger current (IGT) and 1.3 V maximum VGT allow direct connection to 3.3 V or 5 V MCU GPIOs when driven through a current-limiting resistor (e.g., 330 Ω for 12 mA at 5 V). Pulse width must exceed 10 µs to ensure reliable turn-on per datasheet test conditions.

Is the tab (A2) electrically isolated from the PCB mounting surface?

Yes-the "R" suffix denotes insulated TO-220AB construction with an internal ceramic pad providing 2500 V RMS isolation between the metal tab (A2) and the PCB/heatsink. This meets UL E81734 requirements and eliminates need for insulating washers in Class I appliance designs.

Does this part require a snubber circuit when driving an inductive load?

No-BTA16-700BRG is a SNUBBERLESS™ device rated for high commutation performance (dV/dt ≥ 500 V/µs at 125°C and (dI/dt)c ≥ 8.5 A/ms), enabling reliable operation on inductive loads like motors and transformers without external RC snubbers, as confirmed in the main features and electrical characteristics sections.

BTA16-700BRG Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Active

Triac Type:: Standard

Voltage - Off State:: 700 V

Current - On State (It (RMS)) (Max):: 16 A

Voltage - Gate Trigger (Vgt) (Max):: 1.3 V

Current - Non Rep. Surge 50, 60Hz (Itsm):: 160A, 168A

Current - Gate Trigger (Igt) (Max):: 50 mA

Current - Hold (Ih) (Max):: 50 mA

Configuration:: Single

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220

BTA16-700BRG FAQ

1.How can I place an order for BTA16-700BRG through Aetrix?

Please submit a Request for Quotation (RFQ) for BTA16-700BRG on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for BTA16-700BRG reliable?

The price and inventory of BTA16-700BRG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BTA16-700BRG is usually 5 days.

3.What payment methods are accepted for BTA16-700BRG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BTA16-700BRG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BTA16-700BRG?

BTA16-700BRG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BTA16-700BRG order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for BTA16-700BRG?

For technical support, including BTA16-700BRG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BTA16-700BRG requirements.

6.How does Aetrix verify that BTA16-700BRG is sourced from the original manufacturer or authorized distributors?

All BTA16-700BRG products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BTA16-700BRG meets industry standards.

7.What is the process for return or replacement of BTA16-700BRG?

All BTA16-700BRG units undergo pre-shipment inspection (PSI). If there is an issue with BTA16-700BRG, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The BTA16-700BRG part is unused and in its original packaging.

Return procedure for BTA16-700BRG:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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