BT139X-800,127 Triacs by NXP – Buy Online at XON

BT139X-800,127 Triacs by NXP – Reliable AC Switching for Power Control Applications

The Triacs BT139X-800,127 by NXP are high-performance bidirectional thyristor devices designed for efficient AC power control in industrial and consumer electronics. These components are widely used across Semiconductors, Discrete Semiconductors, Thyristors, Triacs categories, offering dependable switching, strong surge capability, and long-term reliability for demanding environments.

In this blog, we’ll explore technical specifications, key features, applications, wiring overview, and sourcing options from www.xonelec.com, also known as x-on electronics and xon electronics.

Technical Specifications of BT139X-800,127

Manufacturer Details

• Manufacturer: NXP Semiconductors

• Part Number: BT139X-800,127

• Device Type: Triac

• Category: Semiconductors, Discrete Semiconductors, Thyristors, Triacs

Electrical Ratings

• Repetitive Peak Off-State Voltage (VDRM): 800V

• RMS On-State Current (IT(RMS)): 16A

• Gate Trigger Current: Low gate sensitivity for easy control

• Holding Current: Low, suitable for small loads

Mechanical & Compliance

• Package Type: TO-220AB

• Mounting Style: Through-hole

• Operating Temperature: Industrial grade

• Compliance: RoHS compliant

These ratings make the device suitable for both industrial and household AC switching designs.

Key Features of BT139X-800,127 Triacs

Electrical Performance

• High Voltage Blocking (800V) – Supports unstable mains conditions

• High Surge Current Capability – Handles inrush currents safely

Control & Efficiency

• Sensitive Gate Triggering – Easy interface with microcontrollers

• Low Holding Current – Enables control of low-power loads

Reliability

• Robust TO-220 Package – Efficient heat dissipation

• Long Operational Life – Designed for continuous switching cycles

These features strengthen its position in Semiconductors, Discrete Semiconductors, Thyristors, Triacs applications where stable AC control is required.

Applications of BT139X-800,127

Industrial Uses

• Motor speed controllers

• Solid-state relays

• Industrial heaters

Consumer & Commercial

• Light dimmer circuits

• Fan regulators

• Appliance power control

Power Management

• AC load switching

• Phase control circuits

• Automation controllers

Thanks to its robust structure, it is widely selected across Semiconductors, Discrete Semiconductors, Thyristors, Triacs designs for dependable performance.

Wiring and Connection Overview

Terminal Identification (TO-220)

• MT1 (Main Terminal 1)

• MT2 (Main Terminal 2)

• Gate (G)

Typical Usage

• AC line connected between MT1 and MT2

• Gate driven through resistor and control circuit

Correct gate drive design ensures reliable triggering and prevents false switching during voltage transients.

Use Case Scenario: Light Dimmer Control Module

Project Requirement

A manufacturer needed a compact AC switching device for a household dimmer module operating on unstable mains supply.

Challenge

Previous components failed due to voltage spikes and overheating.

Implemented Solution

The BT139X-800,127 Triac with 800V rating and TO-220 thermal capability was selected.

Final Result

• Stable dimming control

• Reduced field failures

• Improved product lifespan

This demonstrates why it is trusted in Semiconductors, Discrete Semiconductors, Thyristors, Triacs-based power control systems.

Download Datasheet for BT139X-800,127

For complete electrical characteristics, thermal data, and application guidelines, consult the official NXP datasheet.

Datasheet for BT139X-800,127

Why Buy from Xon Electronics?

Buying from www.xonelec.com, also known as x-on electronics and xon electronics, ensures access to original electronic components across all major categories.

Customer Benefits

• Genuine NXP semiconductor products

• Worldwide delivery capability

• Competitive pricing for volume orders

• Engineering support for component selection

• Secure and fast online purchasing

This makes sourcing components in Semiconductors, Discrete Semiconductors, Thyristors, Triacs fast and reliable.

Conclusion

The BT139X-800,127 Triacs by NXP deliver reliable and efficient AC switching for both industrial and consumer electronics. With strong voltage handling, easy gate control, and robust packaging, they remain a preferred choice for engineers designing power control circuits. When sourced through trusted suppliers like Xon Electronics, they ensure consistent quality and dependable supply.

FAQs – BT139X-800,127 Triacs by NXP

What is the maximum voltage rating of this triac?

It supports up to 800V repetitive peak off-state voltage.

Can it be used for motor control?

Yes, it is suitable for motor speed controllers and inductive loads.

Is it compatible with microcontroller control?

Yes, due to its sensitive gate triggering, it can be driven by low-power control circuits.

What package type is used?

It comes in a TO-220AB through-hole package.

Where can it be purchased online?

It is available from authorized distributors including Xon Electronics.