Manufacturer Part Number

3296W-1-503LF

Description

50K Ohm trimmer potentiometer, single-turn, for precise manual adjustment of resistance. Compact, through-hole design with cermet resistive element. 0.5W power rating. Top adjustment. Packaged in tubes. Suitable for printed circuit board applications.

Specifications

Resistance value: 50 kOhms

Power rating: 0.5W (1/2W)

Tolerance: ±10%

Temperature coefficient: ±100ppm/°C

Number of turns: 25 (multi-turn for high precision)

Adjustment style: Top adjust

Resistive material: Cermet

Mount: Through-hole (PC pin termination)

Size: 0.375" x 0.190" (9.53mm x 4.83mm)

Series: Trimpot® 3296 - Sealed

RoHS3 compliant, REACH affected

Inventory: Over 19,000 pcs in stock, new and original

Moisture Sensitivity Level: Not applicable

ECCN: EAR99

HTSUS: 8533.40.8050

Device Structure

Rectangular cermet trimmer potentiometer

Sealed design for better environmental resistance

Three PC pin terminals for through-hole PCB mount

Top adjustment screw for resistance setting

Enclosure is robust plastic for durability

Multi-turn (25 turns) construction for precise and stable settings

Performance Characteristics

Stable performance over wide temperature range

Low drift and very fine adjustment due to 25-turn mechanism

Good power dissipation (0.5W max), suitable for signal and small power circuits

Tight resistance tolerance and stable temperature coefficient

High reliability due to sealed body and cermet element

Application Environments

Suitable for use in industrial, commercial, telecommunications, test, calibration, and medical devices

Can be used in environments with moderate humidity and temperature swings due to sealed body

Recommended for PCBs where precise calibration or tuning is needed

Commonly used in analog circuits, sensor tuning, gain adjustment, offset calibration

Selection Guidelines

Select based on resistance needed (50K Ohms in this case)

Verify power handling is sufficient at 0.5W

Confirm required adjustment precision (25-turn for fine tuning)

Choose through-hole style for PC boards, not for surface mount

Ensure top adjustment is accessible in your design

Consider environmental certifications (RoHS/REACH compliance) for regulated markets

Match package size and pin spacing to your PCB layout

Usage Considerations

Do not exceed power and voltage specifications to avoid damage

Turn adjustment screw gently to avoid damaging internal mechanism

Mount with care to prevent bending or breaking PC pins

Avoid exposure to solvents or harsh chemicals

Tolerances and temperature drift should be considered in critical designs

Ensure good soldering practices for robust connections

Potential Equivalent/Replacement Models

There are equivalent alternatives both from Bourns and other reputable manufacturers.

Similar models in Bourns 3296 series: 3296W-1-502LF (5K), 3296W-1-104LF (100K), etc.

Other brands:

Vishay Spectrol 3296W series equivalents (e.g., 3296W-1-503)

TT Electronics/BI Technologies 64W series

Copal Electronics ST-32 series

If you need direct alternates with the same 50K value and 25-turn adjustment, check:

Vishay 3296W-1-503LF

TE Connectivity 3296W-1-503LF

If no exact match or alternative is found, please contact the Ariat-Tech sales team for more assistance and custom sourcing.

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