3299X-1-104LF Bourns Variable Resistor (Other) In Stock
Bourns 3299X-1-104LF is a 100 kΩ single-turn trimmer potentiometer with horizontal screw actuator and radial leads, offering precise resistance adjustment in a compact rectangular package for calibration and tuning circuits.
- Manufacturer
- Bourns
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- 3299X-1-104LF Datasheet PDF
- Category
- Variable Resistor
- Price
- From $1.3938(MOQ 1)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 100 kΩ resistance value with single-turn screw adjustment for precise circuit calibration
- Horizontal screw actuator orientation enabling easy access in densely populated PCBs
- Radial leaded package with 0.51 mm lead diameter compatible with through-hole assembly
- RoHS-compliant construction suitable for lead-free manufacturing processes
Applications
The Bourns 3299X-1-104LF is used in analog signal conditioning circuits, audio equipment bias adjustment, and sensor calibration boards where a 100 kΩ adjustable resistance is needed. Its horizontal screw actuator makes it easy to fine-tune during final test without removing the PCB from an enclosure. Engineers also deploy it in oscillator frequency trim and reference voltage adjustment circuits in instrumentation and test equipment.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Not Compliant |
| Factory Lead Time | 10Weeks |
| YTEOL | 7.5 |
| Actuator Orientation | HORIZONTAL |
| Actuator Type | SCREW |
| Construction | Rectangular |
| Ganging Number | 1 |
| JESD-609 Code | e3 |
| Lead Diameter | 0.51mm |
| Lead Length | 6.22mm |
| Mounting Feature | THROUGH HOLE MOUNT |
| Number of Turns | 25 |
| Package Height | 10.03mm |
| Package Length | 9.53mm |
| Package Shape | RECTANGULAR PACKAGE |
| Package Style | Radial |
| Package Width | 6.1mm |
| Packing Method | TUBE |
| Rated Power Dissipation (P) | 0.5W |
| Rated Temperature | 70°C |
| Resistance | 100000Ω |
| Resistance Law | LINEAR |
| Resistor Type | TRIMMER |
| Rotational Angle | 9000deg |
| Surface Mount | NO |
| Technology | CERMET |
| Temperature Coefficient | 100ppm/°C |
| Terminal Finish | TIN |
| Terminal Shape | WIRE |
| Tolerance | 10% |
| Working Voltage | 300V |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8533.40.80.50 |
| Country of Origin | Costa Rica |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What resistance value and adjustment range does the Bourns 3299X-1-104LF provide?
The Bourns 3299X-1-104LF is a 100 kΩ trimmer potentiometer with a single-turn adjustment range covering the full 0 Ω to 100 kΩ span via a horizontal screw. This 100 kΩ range suits applications such as reference voltage dividers, oscillator frequency trim, and sensor bias networks where fine resistance control over a wide span is required without frequent readjustment.
How does the horizontal screw actuator on the 3299X-1-104LF affect board-level assembly and calibration workflow?
The horizontal screw actuator allows calibration access from the side of the PCB, which is valuable when the board is mounted inside an enclosure with only a lateral opening. This orientation means a screwdriver can reach the 0.51 mm lead-mounted trimmer at a 90-degree approach, reducing the need to remove the board from its housing during production test or field calibration, saving up to several minutes per unit in high-volume test cycles.
Which circuit topologies benefit most from using a 100 kΩ trimmer like the 3299X-1-104LF instead of a fixed resistor?
Circuits with component tolerances that accumulate to more than ±5% error benefit from a 100 kΩ trimmer, including RC oscillators, op-amp gain stages, and ADC reference voltage dividers. A 100 kΩ potentiometer in the feedback network of an instrumentation amplifier, for example, allows gain trim over a ratio of 10:1 or more without component replacement. This eliminates the need for resistor-ladder sorting during production and reduces calibration fixture complexity.
Is the Bourns 3299X-1-104LF suitable for lead-free and RoHS-compliant manufacturing lines?
Yes, the 3299X-1-104LF carries the RoHS-compliant Pb-free code and uses JESD-609 code e3, confirming it is compatible with lead-free solder processes with reflow peak temperatures up to 260°C. The 0.51 mm radial leads are tinned with lead-free alloy, making the part suitable for wave-solder or selective-solder assembly on compliant production lines. Its 10-week standard lead time should be factored into procurement planning for new designs.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.9300 | $2.93 |
| 5+ | $2.6900 | $13.45 |
| 10+ | $2.5800 | $25.80 |
| 100+ | $1.8100 | $181.00 |
| 250+ | $1.6200 | $405.00 |
| 400+ | $1.3938 | $557.53 |
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