on November 7th 139

Comprehensive Guide to BTA16 Triacs: Features, Pinout, and Datasheet

The BTA16 Triac series by STMicroelectronics stands out in the world of AC switching, offering high durability and efficiency across various applications. Known for its robust design available in both through-hole and surface-mount options, the BTA16 is highly valued in applications such as static relays, heating regulation, induction motor starting, and phase control in devices like light dimmers and motor speed controllers. Its insulated tab, rated at 2500V RMS, ensures compliance with UL standards, enhancing safety and reliability. This article explores the BTA16 series’ features, pin configuration, CAD models, practical applications, and integration insights, offering a comprehensive guide for you seeking effective solutions for AC control systems.

Catalog

Overview of the BTA16 Triac Series

The BTA16 Triac series serves a wide array of AC switching applications, extending its reach across sectors such as static relays, heating regulation, and motor control circuits. The series offers flexibility with both through-hole and surface-mount packages, catering to different hardware needs. While often used in ON/OFF control scenarios, it also adjusts smoothly to phase control duties in dimmers and motor speed controllers. Versions featuring a snubber circuit enhance commutation abilities, providing a distinct advantage when managing inductive loads like motors and transformers. Furthermore, the BTA16 contains an insulated tab, granting greater electrical isolation that enhances safety and elevates performance.

The versatility of the BTA16 Triac series allows it to be effectively utilized across numerous applications. In static relays, it ensure consistent operation across diverse circuit conditions, thereby optimizing efficiency. Heating regulation circuits benefit from its strong performance, achieving precise temperature management. Within motor control circuits, the BTA16 facilitates more than just ON/OFF tasks, supplying dynamic speed modulation to meet advanced automation demands. In applications requiring phase control, like dimmers and motor speed regulators, the BTA16 Triac series excels. This process calls for meticulous power flow adjustment, something the BTA16 performs with notable precision. This accuracy is enhanced in snubber-equipped versions, which adeptly handle reactive traits of inductive loads such as motors and transformers. This capability fosters steady performance, curtails power surges, and extends the longevity of connected components.

Pinout Configuration

CAD Model Details

Footprint

3D Model

Features

Feature	Description
Medium Current Triac	Suitable for applications requiring medium current handling
Low Thermal Resistance with Clip Bonding	Ensures efficient heat dissipation
Low Thermal Resistance Insulation Ceramic	Provides improved insulation for the insulated BTA series
High Commutation Capability	Available in 4-quadrant (4Q) or very high 3-quadrant (3Q, Snubberless™) variants
UL1557 Certified	Certified under UL1557 standards (file ref: 81734)
RoHS Compliant	Packages comply with RoHS Directive (2002/95/EC)
Insulated Tab	Rated for 2500 VRMS insulation for the BTA series

Technical Specifications

Here is the technical specification table for the STMicroelectronics BTA16-700BRG.

Type	Parameter
Factory Lead Time	11 Weeks
Contact Plating	Tin
Mount	Through Hole
Mounting Type	Through Hole
Package / Case	TO-220-3
Number of Pins	3
Number of Elements	1
Operating Temperature	-40°C to 125°C (TJ)
Packaging	Tube
JESD-609 Code	e3
Pbfree Code	Yes
Part Status	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	3
Additional Feature	UL Recognized
Voltage - Rated DC	700V
Current Rating	16A
Base Part Number	BTA16
Pin Count	3
Configuration	Single
Case Connection	Isolated
Max Repetitive Reverse Voltage (Vrrm)	700V
JEDEC-95 Code	TO-220AB
RMS Current (Irms)	16A
Hold Current	50mA
Trigger Device Type	4 Quadrant Logic Level Triac
Voltage - Gate Trigger (Vgt) (Max)	1.3V
Current - Non Rep. Surge 50, 60Hz (Itsm)	160A, 168A
Current - Gate Trigger (Igt) (Max)	50mA
Leakage Current (Max)	2mA
Critical Rate of Rise of Off-State Voltage-Min	400V/us
Triac Type	Standard
Critical Rate of Rise of Commutation Voltage-Min	10V/us
Radiation Hardening	No
RoHS Status	ROHS3 Compliant
Lead Free	Lead Free

Ordering Information

TRIAC Dimming Circuit

A standard TRIAC dimming circuit using the BTA16 Triac manipulates a capacitor's charge time to adjust the dimming level of a connected bulb. By employing a variable resistor (VR4) alongside a capacitor (C23), the circuit finely tunes the charging duration, thus setting the Triac's triggering moment. At a voltage of 220V, adjusting the charge length alters the bulb's brightness; extended charging illuminates more brilliantly.

Intricate Circuit Dynamics

Within this dimming system, components VR4 and R19 govern the charge time of capacitor C23. Once the voltage on C23 hovers at approximately 33V, the Triac engages, casting light. Subsequently, the DB1 thyristor facilitates current flow through the bulb. When current ceases, darkness returns, and the sequence begins anew. The cycle's duration is crucial, as shorter charge intervals yield dimmer light, while prolonged charges enhance brightness.

Premium-grade components, such as precision resistors and capacitors with minimal tolerance levels, fortify the circuit’s dimming stability and foresight. Addressing the heat issue of the Triac also proves advantageous—excessive temperatures may prevent circuit durability and dependability. Introducing suitable heat sinks and ensuring proper ventilation help circumvent overheating challenges. Utilizing TRIAC-based dimming circuits significantly curbs energy usage and facilitates smooth light-intensity transitions, striking a balance between energy efficiency and comfort. This appealing approach resonates well in both residential and commercial lighting scenarios due to its economical and effective outcomes.

Alternatives

Part Number	Description	Manufacturer
BTB16-700C	700V, 16A, 4 Quadrant Logic Level TRIAC, TO-220AB, Plastic Package-3	STMicroelectronics
BTA16-700B	700V, 16A, 4 Quadrant Logic Level TRIAC, TO-220AB, Plastic, Isolated TO-220AB, 3 Pin	STMicroelectronics
BTB16-700CRG	700V, 16A, 4 Quadrant Logic Level TRIAC, TO-220AB, TO-220AB, 3 Pin	STMicroelectronics
Q7015R6	Alternistor TRIAC, 700V V(DRM), 15A I(T)RMS, TO-220AB	Littelfuse Inc
BTB16-700CW	700V, 16A, Snubberless TRIAC, TO-220AB, Plastic Package-3	STMicroelectronics
BTB16-700SWRG	700V, 16A, 4 Quadrant Logic Level TRIAC, TO-220AB, TO-220AB, 3 Pin	STMicroelectronics
BTB16-700SW	700V, 16A, 4 Quadrant Logic Level TRIAC, TO-220AB, Plastic Package-3	STMicroelectronics
BTB16-700BW/F5	700V, 16A, Snubberless TRIAC, TO-220AB, TO-220, 3 Pin	STMicroelectronics
Q7015L6	Alternistor TRIAC, 700V V(DRM), 15A I(T)RMS, TO-220AB, Isolated TO-220AB, Thermotab-3	Littelfuse Inc

Diverse Uses of the BTA16

Static Relays and Light Dimmers

The BTA16 series is prominent in static relays and light dimmers, facilitating precise ON/OFF switching and phase control. These elements are major in achieving a stable operation of lighting systems by adjusting the voltage delivered to the fixtures. Consequently, this function leads to energy conservation and extends the lifespan of the lighting equipment.

Motor Control Systems

Within motor control systems, including induction motor starters and speed regulators, the BTA16 series delivers remarkable results. In industrial settings, where fine-tuned speed regulation and smooth start-up are active to prevent mechanical stress, these components are highly valued. The BTA16 series is esteemed for its ability to sustain ideal motor performance while diminishing mechanical wear.

AC Switching Applications

In the world of AC (alternating current) switching applications, the BTA16 series excels in providing reliable and precise power control. Be it in household appliances or industrial machinery, the series ensures a secure and effective operation of electrical systems. Its hardy design minimizes downtime and maintenance, thereby enhancing system dependability.

Handling of Resistive and Inductive Loads

Featuring outstanding commutation performance, the BTA16 series is adept at managing both resistive and inductive loads. It offers consistent operation across various conditions, a testament to its significance in electronic circuits. Its capability to efficiently manage diverse load types highlights its adaptability and broad applicability.

Package

Manufacturer

STMicroelectronics was born from the fusion of Italy's SGS Microelettronica and France's Thomson Semiconductors in 1987, marking its place in the dynamic semiconductor landscape. Headquarters brilliantly positioned in Geneva, Switzerland, this company extends its influence through a strategic array of offices spanning the United States, Asia, and China. This international web enables STMicroelectronics to craft innovative solutions and deliver expert technical support to a wide array of industries globally, sparking advancements and fostering connectivity.

Within its illustrious offering, the BTA16 series stands as a testament to STMicroelectronics' dedication to semiconductor excellence. This series reflects their mastery in creating Triacs, designed to thrive in diverse applications and withstand challenging conditions. Their diverse product line includes microcontrollers, analog devices, sensors, and power management systems, serving substantial roles in contemporary fields such as automotive, industrial, and consumer electronics.

Datasheet PDF

BTA16-700BRG Datasheets:

Cylindrical Battery Holders.pdf