Product Overview
Bourns 3059P-1-103 Multiturn Cermet Trimmer Potentiometer - 10k Ohm, Side Adjust, Through-Hole PCB
Condition
Unused NOS sourced from an electronics distributor consolidating inventory. Evaluation: Visual inspection only. Function testing not performed. Leads are unclipped and free of solder. No RoHS/LF status confirmed - verify against your application requirements before use.
Ships same business day from Idaho. Packed carefully.
Product Overview
Bourns 3059P-1-103 is a 22-turn cermet trimming potentiometer rated at 10k Ohms and 1.0W. The rectangular body measures 1.25 inches long with a side-adjust screw and three in-line PC pins for through-hole PCB mounting. Designed for set-and-forget calibration applications where stability under vibration and temperature variation is required.
Key Features
- Resistance: 10k Ohm (10,000 Ohms)
- Turns: 22 turns - high resolution adjustment
- Power Rating: 1.0W at 70°C
- Adjustment: Side-adjust screw
- Element: Cermet
- Pin Style: In-line PC pins (3-pin, straight)
- Body: Rectangular, 1.25 inches long
- Temperature Range: -55°C to +150°C
Applications
- Precision calibration in power supplies and bridge circuits
- Vintage audio amplifier and studio equipment restoration
- Medical instrumentation adjustment
- High-reliability industrial and telecommunications electronics
Frequently Asked Questions
Will this fit my PCB?
This is the "P" style - three pins in a straight in-line row. It requires a PCB footprint designed for that configuration. It is not compatible with surface-mount pads. The 3059Y and 3059W variants use different pin layouts and are not interchangeable.
Is this the lead-free (LF/RoHS) version?
Not confirmed. The part number does not carry an "LF" suffix, which in Bourns' nomenclature indicates the leaded version - however, verify against your application and compliance requirements before use.
The modern trimmer I use is 1/4 inch square. Is this the same size?
No. The 3059P body is 1.25 inches long - a legacy rectangular format. Confirm you have adequate board space before ordering.
Are the leads in usable condition?
Yes. These are unused NOS units. Leads are unclipped and free of solder, suitable for direct insertion into a new PCB.
The 3059P-1-103 is a well-established Bourns part with broad datasheet availability. Cross-reference Bourns' published datasheet to confirm pin spacing and footprint dimensions before layout.
