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Single-Turn Trimming Potentiometer
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3329X Low Profile Potentiometer
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3329X Low Profile Potentiometer
The 3329X is a 1/4-inch round, low-profile, industrial-grade sealed single-turn cermet trimmer potentiometer with side adjustment, designed for PCB through-hole mounting. It offers a resistance range from 10Ω to 5MΩ, with a power rating of 0.5W at 70°C, effective electrical travel of 220°, and mechanical travel of 250°. The multi-finger wiper ensures low contact resistance variation (CRV ≤3%R or 3Ω) and high stability, while insulation resistance is ≥100MΩ at 500Vdc. Its low-profile, sealed construction protects against dust and moisture and withstands cleaning processes, making it ideal for high-density PCB layouts.
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Product Description
The 3329X is a 1/4-inch round, low-profile, industrial-grade sealed single-turn cermet trimmer potentiometer with side adjustment, designed for PCB through-hole mounting. It offers a resistance range from 10Ω to 5MΩ, with a power rating of 0.5W at 70°C, effective electrical travel of 220°, and mechanical travel of 250°. The multi-finger wiper ensures low contact resistance variation (CRV ≤3%R or 3Ω) and high stability, while insulation resistance is ≥100MΩ at 500Vdc. Its low-profile, sealed construction protects against dust and moisture and withstands cleaning processes, making it ideal for high-density PCB layouts.
Product Parameter
| Parameter | Value |
|---|---|
| Resistance Range | 10Ω ~ 5MΩ |
| Tolerance | ±10% |
| Power Rating | 0.5W at 70°C (0W at 125°C) |
| Contact Resistance Variation (CRV) | ≤3%R or 3Ω |
| Insulation Resistance | ≥100MΩ at 500Vdc |
| Dielectric Strength | 500Vac (1 min.) |
| Temperature Coefficient | ±100, ±250ppm/°C |
| Mechanical Endurance | 200 cycles (ΔR≤±3%R) |
| Operating Temperature | -55°C ~ +125°C |
| Starting Torque | ≤25 mN.m |
| Clutch Torque | ≤35 mN.m |
|---|---|
| Resistance Range | 10Ω ~ 5MΩ |
| Tolerance | ±10% |
| Power Rating | 0.5W at 70°C (0W at 125°C) |
| Contact Resistance Variation (CRV) | ≤3%R or 3Ω |
| Insulation Resistance | ≥100MΩ at 500Vdc |
| Dielectric Strength | 500Vac (1 min.) |
| Temperature Coefficient | ±100, ±250ppm/°C |
| Mechanical Endurance | 200 cycles (ΔR≤±3%R) |
| Operating Temperature | -55°C ~ +125°C |
| Starting Torque | ≤25 mN.m |
| Clutch Torque | ≤35 mN.m |
Product Feature
Product Advantages
We offer factory-direct supply with full RoHS and REACH certifications. The single-turn design with a multi-finger wiper guarantees ΔR≤±3%R after 200 mechanical cycles, ensuring excellent durability. It operates reliably across a wide temperature range from -55°C to +125°C and has a dielectric strength of 500Vac (1 min.), suitable for harsh industrial environments. Available with ±10% tolerance, it maintains ΔR≤±3%R after 1000 hours of load life at 70°C. The cermet element ensures long-term reliability. OEM/ODM services and flexible delivery are available.
Application Fields
The 3329X low profile trimmer is widely used in precision electronic circuits, consumer electronics (audio equipment, TVs), communication equipment (RF circuits, antennas), industrial electronics (machinery, robotics), test and measurement instruments (oscilloscopes, multimeters), medical equipment (patient monitoring, diagnostic tools), and automotive electronics (sensor calibration, audio systems). Its low-profile design and sealed construction make it especially suitable for space-constrained, humid, or dusty environments, providing engineers with a reliable solution for circuit debugging and performance optimization.
Product Features
1/4-inch round low-profile industrial-grade form factor
Single-turn, side adjustment
Fully sealed construction, washable, dust and moisture proof
Cermet resistive element, multi-finger wiper
Effective electrical travel 220°, total mechanical travel 250°
Resistance range 10Ω~5MΩ, tolerance ±10%
PC pin termination, PCB through-hole mounting
RoHS compliant
Dimensions & Packaging
Dimensions (typical, mm): Round body diameter approx. 6.4mm (1/4 inch), height approx. 4.8mm (low profile, excluding adjustment slot). Side slot fits a standard screwdriver. Pin spacing fits a 2.54mm standard PCB grid. Mounting: PCB through-hole (PC pin). Packaging: Tube (50 pcs/tube). Outer packaging: 1000 pcs/box, 5000 pcs/carton. Suitable for manual or automated insertion.
We offer factory-direct supply with full RoHS and REACH certifications. The single-turn design with a multi-finger wiper guarantees ΔR≤±3%R after 200 mechanical cycles, ensuring excellent durability. It operates reliably across a wide temperature range from -55°C to +125°C and has a dielectric strength of 500Vac (1 min.), suitable for harsh industrial environments. Available with ±10% tolerance, it maintains ΔR≤±3%R after 1000 hours of load life at 70°C. The cermet element ensures long-term reliability. OEM/ODM services and flexible delivery are available.
Application Fields
The 3329X low profile trimmer is widely used in precision electronic circuits, consumer electronics (audio equipment, TVs), communication equipment (RF circuits, antennas), industrial electronics (machinery, robotics), test and measurement instruments (oscilloscopes, multimeters), medical equipment (patient monitoring, diagnostic tools), and automotive electronics (sensor calibration, audio systems). Its low-profile design and sealed construction make it especially suitable for space-constrained, humid, or dusty environments, providing engineers with a reliable solution for circuit debugging and performance optimization.
Product Features
1/4-inch round low-profile industrial-grade form factor
Single-turn, side adjustment
Fully sealed construction, washable, dust and moisture proof
Cermet resistive element, multi-finger wiper
Effective electrical travel 220°, total mechanical travel 250°
Resistance range 10Ω~5MΩ, tolerance ±10%
PC pin termination, PCB through-hole mounting
RoHS compliant
Dimensions & Packaging
Dimensions (typical, mm): Round body diameter approx. 6.4mm (1/4 inch), height approx. 4.8mm (low profile, excluding adjustment slot). Side slot fits a standard screwdriver. Pin spacing fits a 2.54mm standard PCB grid. Mounting: PCB through-hole (PC pin). Packaging: Tube (50 pcs/tube). Outer packaging: 1000 pcs/box, 5000 pcs/carton. Suitable for manual or automated insertion.
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