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Products
3329H-2 Multi-turn Trimmer
The 3329H-2 is a 1/4-inch round, industrial-grade, sealed multi-turn cermet trimmer potentiometer with top knob adjustment. It offers a resistance range from 10Ω to 5MΩ, a power rating of 0.5W at 70°C, an effective electrical travel of 220°, and a total mechanical travel of 250°. This component features low contact resistance variation (CRV ≤3%R or 3Ω) and high insulation resistance (≥100MΩ @500Vdc). The multi-finger wiper design ensures excellent stability and reliability, while the fully sealed construction protects against dust and moisture, withstands cleaning processes, and is designed for PCB through-hole mounting with PC pins.
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Product Description
The 3329H-2 is a 1/4-inch round, industrial-grade, sealed multi-turn cermet trimmer potentiometer with top knob adjustment. It offers a resistance range from 10Ω to 5MΩ, a power rating of 0.5W at 70°C, an effective electrical travel of 220°, and a total mechanical travel of 250°. This component features low contact resistance variation (CRV ≤3%R or 3Ω) and high insulation resistance (≥100MΩ @500Vdc). The multi-finger wiper design ensures excellent stability and reliability, while the fully sealed construction protects against dust and moisture, withstands cleaning processes, and is designed for PCB through-hole mounting with PC pins.
Product Parameter
| Parameter | Value |
|---|---|
| Resistance Range | 10Ω ~ 5MΩ |
| Tolerance | ±10%, ±20% |
| Power Rating | 0.5W @ 70°C (0W @ 125°C) |
| Contact Resistance Variation (CRV) | ≤3%R or 3Ω |
| Insulation Resistance | ≥100MΩ @ 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%, ±20% |
| Power Rating | 0.5W @ 70°C (0W @ 125°C) |
| Contact Resistance Variation (CRV) | ≤3%R or 3Ω |
| Insulation Resistance | ≥100MΩ @ 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 complete certifications including RoHS and REACH. The multi-turn design with a multi-finger wiper guarantees a resistance change of ≤±3%R even after 200 mechanical cycles. Its sealed body withstands harsh industrial environments and standard cleaning processes, with an operating temperature range of -55°C to +125°C. The cermet element and PC pins provide long-term reliability, stable performance, and excellent solderability. We provide a choice of ±10% or ±20% tolerance and support OEM/ODM customization, backed by sufficient production capacity and short delivery times.
Product Features
1/4-inch round industrial-grade form factor, button shape
Multi-turn, top knob 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% or ±20%
PC pin termination for PCB through-hole mounting
RoHS compliant
Dimensions & Packaging
Dimensions (typical, mm): Round body diameter is approx. 6.4mm (1/4 inch), and height is approx. 4.8mm (excluding the adjustment knob). The top knob design allows for convenient finger adjustment. The pin spacing fits a 2.54mm standard PCB grid. Mounting is PCB through-hole with PC pins. Packaging: Tube packaging (50 pcs/tube). Outer packaging: 1000 pcs/box, 5000 pcs/carton. Suitable for both manual and automated insertion.
Applications
Precision Electronic Circuits: Used in circuits requiring precise tuning or calibration, such as analog signal conditioning circuits.
Consumer Electronics: Found in devices like audio equipment for volume control or television sets for tuning circuits.
Communication Equipment: Utilized in RF circuits, antennas, and transceivers for fine adjustment of signal paths.
Industrial Electronics: Integrated into control circuits for machinery, robotics, and automation systems.
Test and Measurement Instruments: Applied in oscilloscopes, multimeters, and spectrum analyzers for calibration.
Medical Equipment: Used in patient monitoring systems or diagnostic instruments requiring precise electrical parameter control.
Automotive Electronics: Found in sensor calibration or audio systems for tone control.
The sealed design is especially suited for harsh environments with moisture and dust.
We offer factory-direct supply with complete certifications including RoHS and REACH. The multi-turn design with a multi-finger wiper guarantees a resistance change of ≤±3%R even after 200 mechanical cycles. Its sealed body withstands harsh industrial environments and standard cleaning processes, with an operating temperature range of -55°C to +125°C. The cermet element and PC pins provide long-term reliability, stable performance, and excellent solderability. We provide a choice of ±10% or ±20% tolerance and support OEM/ODM customization, backed by sufficient production capacity and short delivery times.
Product Features
1/4-inch round industrial-grade form factor, button shape
Multi-turn, top knob 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% or ±20%
PC pin termination for PCB through-hole mounting
RoHS compliant
Dimensions & Packaging
Dimensions (typical, mm): Round body diameter is approx. 6.4mm (1/4 inch), and height is approx. 4.8mm (excluding the adjustment knob). The top knob design allows for convenient finger adjustment. The pin spacing fits a 2.54mm standard PCB grid. Mounting is PCB through-hole with PC pins. Packaging: Tube packaging (50 pcs/tube). Outer packaging: 1000 pcs/box, 5000 pcs/carton. Suitable for both manual and automated insertion.
Applications
Precision Electronic Circuits: Used in circuits requiring precise tuning or calibration, such as analog signal conditioning circuits.
Consumer Electronics: Found in devices like audio equipment for volume control or television sets for tuning circuits.
Communication Equipment: Utilized in RF circuits, antennas, and transceivers for fine adjustment of signal paths.
Industrial Electronics: Integrated into control circuits for machinery, robotics, and automation systems.
Test and Measurement Instruments: Applied in oscilloscopes, multimeters, and spectrum analyzers for calibration.
Medical Equipment: Used in patient monitoring systems or diagnostic instruments requiring precise electrical parameter control.
Automotive Electronics: Found in sensor calibration or audio systems for tone control.
The sealed design is especially suited for harsh environments with moisture and dust.
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