May 14, 2025
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In today's energy-efficient electronics landscape, the demand for robust AC switching components like the T1650H-6G TRIAC is surging. STMicroelectronics' Snubberless H-Series TRIAC stands out with its 600V voltage rating, 16A current capacity, and industry-leading commutation capabilities up to 150°C. Designed for surface-mount (D2PAK) applications, this component reduces heatsink requirements while ensuring reliability in industrial and consumer electronics. Discover how the T1650H-6G outperforms conventional TRIACs in our detailed analysis below.

The T1650H-6G is a medium-current Snubberless TRIAC (Alternistor) featuring:
Voltage/Current Rating: 600V VDRM, 16A IT(RMS)
High-Temp Operation: Up to 150°C junction temperature
Package: D2PAK (TO-263-3) surface-mount for automated PCB assembly
Compliance: RoHS, UL certified (E81734)
| Parameter | Value | Source |
|---|---|---|
| Repetitive Off-State Voltage (VDRM) | 600 V | ST Datasheet |
| On-State Voltage (VT) | 1.5 V (max) | ST Datasheet |
| Gate Trigger Current (IGT) | 50 mA | ST Datasheet |
| Non-Repetitive Surge Current (ITSM) | 168 A | ST Datasheet |
| Operating Temperature | -40°C to +150°C | ST Datasheet |
When to choose T1650H-6G:
High-Temp Environments: Optimal for applications requiring stable performance up to 150°C.
Space-Constrained Designs: D2PAK package saves PCB area vs. TO-220.
Snubberless Operation: Eliminates external snubber circuits in inductive loads.
| Model | Package | IT(RMS) | Key Difference |
|---|---|---|---|
| T1650H-6G | D2PAK | 16A | Snubberless, SMD |
| BTA16-600B | TO-220 | 16A | Requires snubber circuit |
| Z0103MN | TO-92 | 1A | Low-power applications |
Industrial: Motor controls, solenoid drivers
Consumer: Dimmers, appliance power switches
Lighting: LED driver phase control
According to industry reports, the global TRIAC market is projected to grow at 5.8% CAGR (2023-2030), driven by smart home devices and industrial automation. The T1650H-6G’s Snubberless technology addresses the demand for energy-efficient designs with reduced BOM costs.
Emerging applications in EV charging and renewable energy systems will favor high-voltage TRIACs like the T1650H-6G. STMicroelectronics is expected to release higher-current variants (25A+) in the same package.
A: Yes, for AC loads up to 16A, it offers silent operation and longer lifespan.
A: Depends on load current. For <8A continuous, PCB copper may suffice (refer to thermal calculations in datasheet).
A: Reduces component count and board space by eliminating RC snubber networks.
A: TRIACs are better for AC switching; MOSFETs excel in DC/pulse applications.
A: Standard MOQ is 1000 units (factory packed). Contact [email protected] for stock availability.
The T1650H-6G combines STMicroelectronics’ Snubberless technology with the compact D2PAK package, making it a future-proof choice for AC power control. Engineers seeking reliable, high-temperature performance in automated manufacturing environments will find this TRIAC delivers exceptional value.
Contact our team at [email protected] for pricing and technical support.