The TC33X-2-203E is a compact surface-mount trimming potentiometer manufactured by Bourns. Belonging to the Trimpot® TC33 series, this component features a nominal resistance of 20kΩ, a resistance tolerance of ±25%, and a rated power of 0.15W. It is designed for electronic circuits requiring adjustable resistance and precise voltage calibration.
The device utilizes a cermet resistive element, providing reliable electrical characteristics and stable adjustment performance. With a temperature coefficient of ±250ppm/°C, it supports consistent operation across its specified temperature range of -40°C to +100°C.
The TC33X-2-203E features a compact 3mm SMD trimmer design with J-lead terminations, making it suitable for space-constrained PCB layouts and automated surface-mount technology (SMT) assembly. Its top-adjustment configuration allows convenient resistance adjustment after PCB installation.
This model features a single-turn adjustment mechanism with a rotational stop and an adjustment angle of 270° ±20°. Its 20kΩ resistance value makes it suitable for voltage calibration, circuit tuning, signal adjustment, and other applications requiring adjustable resistance.
With a rated power of 0.15W and a maximum applied voltage of 50V DC, the component is designed for reliable operation within its specified electrical limits. The cermet construction provides a practical solution for electronic circuits requiring compact and adjustable resistance components.
The Bourns TC33X-2-203E supports reflow soldering and automated pick-and-place assembly. Its rotor design is compatible with automatic adjustment equipment, making it suitable for modern PCB manufacturing processes.
The product is supplied in tape-and-reel packaging, with a standard quantity of 2,500 pieces per 7-inch reel, supporting automated component handling and high-volume electronic manufacturing.
Key Features:
- Manufacturer: Bourns
- Part Number: TC33X-2-203E
- Product Series: Trimpot® TC33 Series
- Product Type: SMD Trimmer Potentiometer
- Resistance: 20kΩ
- Resistance Tolerance: ±25%
- Rated Power: 0.15W
- Maximum Applied Voltage: 50V DC
- Temperature Coefficient: ±250ppm/°C
- Resistive Material: Cermet
- Adjustment Type: Top Adjustment
- Number of Turns: 1 Turn
- Adjustment Angle: 270° ±20°
- Rotation Type: Rotational Stop
- Termination Style: J Lead
- Package Type: 3mm SMD
- Dimensions: Approximately 3.8 × 3.6mm
- Operating Temperature: -40°C to +100°C
- Mounting Type: Surface Mount
- Packaging: Tape and Reel
- Standard Reel Quantity: 2,500 Pieces
- Environmental Compliance: RoHS Compliant
Typical Applications:
- Voltage adjustment circuits
- Circuit calibration
- Signal adjustment circuits
- Power supply voltage regulation
- Sensor calibration
- Feedback control circuits
- Industrial control equipment
- Consumer electronics
- Communication equipment
- PCB circuit tuning
The Bourns TC33X-2-203E combines a 20kΩ resistance value, cermet resistive technology, and a compact single-turn adjustment mechanism. Its top-adjustment design and surface-mount construction make it a practical choice for electronic manufacturers, hardware engineers, and procurement teams seeking reliable adjustable resistors for modern electronic circuit designs.
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