TN1605H-6FP STMicroelectronics SCR (Transistor Outline, Vertical) In Stock
The TN1605H-6FP is a high-temperature 16 A silicon controlled rectifier (SCR) from STMicroelectronics, rated for demanding power control applications. It supports continuous on-state current of 16 A with high blocking voltage capability and is housed in a TO-220FP vertical transistor outline package. Available from stock with worldwide distribution.
- Manufacturer
- STMicroelectronics
- Package
- Transistor Outline, Vertical
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- TN1605H-6FP Datasheet PDF
- Category
- SCR
- Price
- From $0.4557(MOQ 10)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 16 A RMS on-state current rating handles AC power switching for resistive and inductive loads in motor control and heating applications
- High-temperature SCR design ensures reliable operation at junction temperatures up to 125 °C in thermally demanding environments
- TO-220FP fully isolated package eliminates the need for insulating hardware, simplifying heatsink assembly in multi-device power boards
- Fast gate triggering sensitivity reduces required gate drive current and simplifies control circuit design
Applications
The TN1605H-6FP is used in AC power control applications such as heating elements, light dimmers, motor soft-start circuits, and solid-state relays where a 16 A SCR with high-temperature capability is required. Its isolated TO-220FP package is particularly advantageous in multi-device power modules where several SCRs share a common heatsink without individual insulating washers. It is also suited for industrial power controllers, welding equipment, and HVAC compressor starters that operate continuously at elevated ambient temperatures.
Specifications
| YTEOL | 0 |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Trigger Device Type | SCR |
| Package | Transistor Outline, Vertical |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum continuous on-state current of TN1605H-6FP, and what load types can it control?
The TN1605H-6FP is rated for 16 A RMS continuous on-state current, making it capable of switching resistive loads up to approximately 3.5 kW at 230 V AC and inductive loads in motor starters or transformer primaries. It handles surge currents significantly above 16 A for short durations, which is important for motor inrush current at startup. The SCR topology also provides natural zero-crossing commutation in AC circuits, reducing electrical noise in sensitive equipment nearby.
Why is the fully isolated TO-220FP package of TN1605H-6FP preferred in multi-SCR power boards?
The TO-220FP package has a fully isolated mounting tab, meaning the heatsink connection is electrically isolated from the internal semiconductor junction at up to 2500 V. This allows multiple TN1605H-6FP devices to be mounted directly to a shared aluminum heatsink without individual insulating pads or washers, reducing assembly time and thermal resistance. Compared to a standard TO-220AB package, the FP variant eliminates an interface layer that can add 0.5 °C/W to the thermal path.
At what junction temperature does TN1605H-6FP remain operational, and how does this affect heatsink sizing?
The TN1605H-6FP is specified for high-temperature operation with a maximum junction temperature of 125 °C, which is common for industrial SCRs in this current class. With a typical thermal resistance junction-to-case of around 3 °C/W, a 16 A load at 230 V AC generating approximately 25 W of conduction loss requires a heatsink with thermal resistance below 3 °C/W to stay within the 125 °C junction limit at a 50 °C ambient. This calculation drives heatsink selection in HVAC and industrial motor control designs.
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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 |
|---|---|---|
| 10+ | $0.7790 | $7.79 |
| 50+ | $0.6990 | $34.95 |
| 250+ | $0.6530 | $163.25 |
| 2000+ | $0.4556 | $911.30 |
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