LXLZ Note: This Product Provides Solutions for Parameter Customization And Application.
3590S Precision Wirewound Potentiometer Multi-Turn Pot
What You’re Looking At
The 3590S is a 10-turn wirewound potentiometer built for applications where a standard single-turn pot simply doesn’t cut it. From the image, you can see the classic blue housing, threaded panel-mount bushing with lock nut, solder lug terminals on the back, and a machined metal shaft — the kind of construction that tells you right away this isn’t a consumer-grade component. It’s designed to be installed, adjusted precisely, and left alone for years.
We manufacture these to the 3590S footprint, fully compatible with existing panel cutouts and dial/knob accessories. Both the front-shaft and rear-terminal orientations are shown — exactly what your engineers will find on the assembly drawing.
Table of Contents
Core Specifications at a Glance
| Parameter | Detail |
|---|---|
| Model | 3590S-2 |
| Type | Multi-Turn Wirewound Potentiometer |
| Turns | 10 turns |
| Resistance Range | 500Ω — 100KΩ (custom values negotiable) |
| Resistive Element | Wire-wound (precision alloy wire) |
| Terminal Type | Solder lug / Tab terminals |
| Accessories | Compatible with knob + graduated dial scale |
| Mounting | Panel-mount, threaded bushing + lock nut |
| Temperature Rating | High-temperature rated housing & element |
| Power Handling | Heavy-duty — designed for continuous load in industrial environments |
| Shaft | Machined metal, standard diameter for dial compatibility |
Where These Actually Get Used
If you’re sourcing these, your end products probably fall into one of these categories — and we know because these are exactly the industries ordering from us:
- Industrial automation & motion control — servo drive feedback, axis position reference
- Laboratory & test equipment — precision voltage dividers, signal simulation benches
- Medical devices — dosage calibration, infusion pump speed control
- Power supply design — output voltage adjustment on programmable PSUs
- Aerospace & defense instrumentation — panel-mounted trim adjustments requiring long-term stability
- Educational & R&D equipment — anywhere a technician needs repeatable, fine manual control
The 10-turn resolution means one full sweep gives you 36° per turn, dramatically reducing the chance of overshooting a setpoint. Pair it with a graduated dial and your operators get visual confirmation without needing a meter.
Why Wirewound, Not Carbon Film?
This is a question your engineers probably already know the answer to — but it matters when justifying the spec to a purchasing team:
- Wirewound elements handle higher power loads without drift or thermal runaway
- Lower temperature coefficient — the resistance stays stable when things heat up on the board or in the enclosure
- Longer mechanical life — the wire element wears far more slowly than a carbon track under repeated adjustment cycles
- Better noise performance in low-frequency, high-current circuits
For any application where accuracy over time matters more than cost-per-unit, wirewound is the right call.
Manufacturing Advantages — What We Bring to Your Supply Chain
We’re not a trading company. These come off our own production line, which means:
Consistent quality at volume
— we run batch QC on resistance tolerance, rotational torque, and terminal pull strength. You’re not getting rebranded stock from a gray market.
Resistance value flexibility
— our standard range covers 500Ω to 100KΩ. If your BOM calls for something in between or you need a tighter tolerance grade, talk to us before assuming it’s a custom job. We probably already run it.
Dial and knob sets available
— we can supply the matched knob and graduated dial scale as a kit, simplifying your procurement and ensuring mechanical fit. One supplier, one PO.
Panel-ready hardware included
— threaded bushing and lock nut come assembled, so your line workers aren’t sourcing fasteners separately.
Thermal and load testing
— our production process includes burn-in verification. What arrives at your warehouse has already been run under load.
Best Practices From the Field
A few things we hear from long-term customers that are worth passing along:
Torque the lock nut properly. Over-tightening the panel bushing can stress the housing and affect shaft alignment. Finger-tight plus a quarter turn is usually right.
Match the dial scale to your full-scale range. If you’re using this as a 0–10V reference divider, calibrate the dial to reflect that — don’t rely on turns counting alone.
Leave thermal headroom. Even though power handling is strong, derate by 30–40% in enclosed enclosures with poor airflow. The spec is for open-air mounting.
For high-vibration environments, apply a drop of thread-lock on the bushing nut after final panel adjustment. The 3590S shaft has enough friction to hold position, but the nut can back off over time.
Incoming inspection tip: Check end-to-end resistance and mid-travel linearity on a sample before your first production run. It takes 10 minutes and saves a lot of rework discussion later.
FAQ — What B2B Buyers Actually Ask Us
Can you supply these with tighter resistance tolerance than ±10%?
We have a spec that requires ±5%. Yes. ±5% is available as a standard production grade for most resistance values in our range. If your application is particularly critical, ask about our ±3% selection — MOQ and lead time differ slightly, so let us know your volume upfront.
What’s your minimum order quantity, and do you offer pricing breaks at volume?
Our standard MOQ is flexible depending on the resistance value — generally 100 pcs per value for catalog items. Volume pricing kicks in meaningfully at 500 pcs and above. For repeat orders or annual blanket contracts, we work with you on consignment stock arrangements. Send us your monthly usage estimate and we’ll put together a tiered price sheet.
Are these RoHS compliant? We ship into the EU and need documentation?
Yes, our 3590S production line is RoHS compliant. We can provide the declaration of conformity and material composition documentation with your order. If you need REACH or specific substance disclosure reports, request that at the time of inquiry.
How consistent is the lot-to-lot quality?
We had issues with a previous supplier where shaft torque varied significantly. This is a legitimate concern and we hear it often. Our shaft torque is controlled within a defined range during assembly, and we do rotational feel checks as part of line QC. We can provide a first-article inspection report for new customers. If you experienced batch variation elsewhere, we’re happy to send samples from three different production batches so your engineers can evaluate consistency directly.
Can you supply the matching knob and dial scale together?
We’d prefer a single-source solution. Absolutely — that’s actually one of the reasons customers consolidate their sourcing with us. We offer matched knob and graduated dial scale sets designed specifically for the 3590S shaft diameter and panel depth. Tell us your panel thickness and we’ll confirm the right hardware. Kits can be packed together or supplied separately depending on your assembly process.
Ready to discuss your project requirements or request a sample? Contact us with your target resistance value, quantity, and tolerance spec — we’ll come back with a concrete quote, not a catalog link.