T405-600T STMicroelectronics Triac MT (Transistor Outline, Vertical) In Stock
STMicroelectronics T405-600T is a sensitive gate 4A, 600V TRIAC in a TO-220AB 3-pin through-hole package for AC power control. Features 5mA maximum gate trigger current enabling direct drive from low-power microcontrollers and optocouplers. Available in stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Transistor Outline, Vertical
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- T405-600T Datasheet PDF
- Category
- Triac MT
- Price
- From $0.3200(MOQ 100)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of T405-600T?
- Sensitive gate design with only 5mA maximum gate trigger current allows direct drive from microcontroller I/O pins and optocouplers
- 600V blocking voltage rating supports reliable AC mains switching in 115V and 230V line voltage applications
- TO-220AB through-hole package provides excellent thermal dissipation and ease of heatsink attachment for higher power operation
- Single-element TRIAC configuration simplifies AC load switching circuits for lamps, motors, and heating elements
What is T405-600T used for?
The T405-600T is well-suited for AC power control in home appliances, HVAC systems, and industrial equipment where it switches resistive and inductive loads on 115V or 230V AC mains. Its sensitive gate allows direct triggering from microcontroller outputs or low-current optocouplers, making it ideal for solid-state relay circuits, light dimmers, and motor speed controllers. The device also fits smart home automation modules and energy management systems requiring reliable and compact AC switching up to 4A.
What are the specifications of T405-600T?
| Factory Lead Time | 15Weeks |
| YTEOL | 6 |
| Additional Feature | SENSITIVE GATE |
| Case Connection | MAIN TERMINAL 2 |
| Configuration | SINGLE |
| DC Gate Trigger Current-Max | 5mA |
| JEDEC-95 Code | TO-220AB |
| JESD-30 Code | R-PSFM-T3 |
| JESD-609 Code | e3 |
| Number of Elements | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Qualification Status | Not Qualified |
| RMS On-state Current-Max | 4A |
| Repetitive Peak Off-state Voltage | 600V |
| Surface Mount | NO |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | THROUGH-HOLE |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Trigger Device Type | 4 QUADRANT LOGIC LEVEL TRIAC |
| Package | Transistor Outline, Vertical |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8541.30.00.80 |
| Country of Origin | Mainland China |
Where can I find the T405-600T datasheet?
T405-600T Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for T405-600T?
Compatible alternatives and drop-in replacements for T405-600T:
Frequently Asked Questions
What are the voltage and current ratings of the T405-600T?
The T405-600T has a 600V repetitive peak off-state voltage (VDRM/VRRM) and a 4A RMS on-state current rating. These ratings make it suitable for switching AC loads on 115V and 230V mains in residential and light industrial applications.
What is the gate trigger current for the T405-600T and why does it matter?
The T405-600T requires a maximum gate trigger current of just 5mA, classifying it as a sensitive gate TRIAC. This low trigger threshold allows it to be driven directly from microcontroller GPIO pins or low-output optocouplers without intermediate driver stages, simplifying circuit design.
What package does the T405-600T use?
The T405-600T is housed in a TO-220AB (JEDEC-95 code TO-220AB) 3-pin through-hole package. This standard package allows easy PCB mounting and accepts bolt-on or clip-on heatsinks for improved thermal management when switching higher power loads.
What types of loads can the T405-600T switch?
The T405-600T can switch resistive loads such as incandescent lamps and heaters, as well as inductive loads like AC motors and solenoids. For inductive loads, a snubber circuit (RC network) is recommended to suppress voltage transients and ensure reliable TRIAC commutation.
Is the T405-600T suitable for use in solid-state relay designs?
Yes, the T405-600T is commonly used in solid-state relay (SSR) designs. Its sensitive gate (5mA maximum trigger current) pairs well with optocouplers like the MOC3041 or similar zero-crossing optocoupler drivers, providing isolated AC load switching in home automation, industrial controllers, and power management circuits.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $0.6450 | $64.50 |
| 500+ | $0.5074 | $253.70 |
| 1000+ | $0.4680 | $468.00 |
| 1250+ | $0.3350 | $418.75 |
| 2500+ | $0.3300 | $825.00 |
| 7500+ | $0.3200 | $2400.00 |
In Stock · 24h Response · Worldwide Shipping
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