Product Introduction
The RD121N-H Rotary Potentiometer is a durable and compact control component featuring a 12mm metal shaft, threaded bushing mounting structure, and horizontal PCB installation design. Designed for reliable analog adjustment, it provides smooth rotary operation, stable electrical performance, and excellent mechanical durability.
With a single-gang configuration and integrated mounting bracket, the RD121N-H is suitable for applications requiring secure PCB installation and precise manual adjustment. The metal shaft design improves wear resistance and operational stability, making it an excellent choice for professional electronic equipment.
This potentiometer is widely used in audio devices, amplifiers, industrial control panels, measuring instruments, communication equipment, and OEM electronic products.
Key Features
1. Durable 12mm Metal Shaft Design
The RD121N-H adopts a high-strength metal shaft structure, providing excellent mechanical reliability and smooth rotary adjustment performance during repeated operation.
2. Threaded Bushing for Secure Installation
The integrated threaded bushing allows stable panel mounting, improving fixing strength and reducing mechanical movement during operation.
3. Horizontal PCB Mounting Structure
Designed for horizontal installation, the potentiometer is optimized for compact PCB layouts and applications requiring low-profile component placement.
4. Single-Gang Precision Adjustment
The single-unit resistive structure provides accurate analog control, suitable for volume adjustment, parameter setting, and signal regulation.
5. Integrated Mounting Bracket
The reinforced bracket design improves mechanical stability and simplifies PCB assembly, making it suitable for industrial and commercial electronic products.
6. Reliable Long-Term Operation
With a mechanical life of ≥10,000 cycles, the RD121N-H provides dependable performance for long-term applications.
Technical Specifications
| Item | Specification |
|---|---|
| Product Model | RD121N-H |
| Product Type | Rotary Potentiometer |
| Series | RD12 Series |
| Shaft Type | Metal Shaft |
| Shaft Size | 12mm |
| Mounting Style | Horizontal PCB Mount |
| Structure Type | Single Gang |
| Bushing Type | Threaded Shaft Sleeve |
| Mounting Bracket | Included |
| Total Rotational Angle | 300° ±10° |
| Rotational Torque | 20–200 gf·cm |
| Click Position | Center Click |
| Click Slip Out Force | 50–300 gf·cm |
| Switch Working Angle | 30° ±10° |
| Switch Working Torque | 50–250 gf·cm |
| Shaft Stop Strength | ≤3 kgf·cm |
| Push & Pull Strength | ≥6 kgf·cm |
| Resistance Range | 1kΩ–1MΩ |
| Resistance Taper | Linear / Audio / Custom Available |
| Power Rating | Linear: 0.08W / Other taper: 0.05W |
| Maximum Operating Voltage | 100V AC |
| Residual Resistance | R1-R2 <10Ω; R2-R3 <20Ω |
| Rotational Noise | ≤100mV |
| Tracking Error | ≤±3dB (-40~0dB) |
| Switch Contact Resistance | ≤0.5Ω |
| Switch Power Rating | 12V DC 1A Max |
| Insulation Resistance | ≥100MΩ at 500V DC |
| Withstanding Voltage | 500V AC for 1 Minute |
| Mechanical Life | ≥10,000 Cycles |
| MOQ | 3,000 PCS |
| Reference Price | USD 0.20/PCS |
| Bulk Pricing | Available for larger quantities |
Customization Options
OEM and ODM customization services are available:
- Resistance values from 1kΩ to 1MΩ
- Linear, logarithmic, and customized taper curves
- Shaft length and shaft shape customization
- Knurled or smooth shaft options
- Center click function customization
- Switch function options
- Terminal layout customization
- Bracket structure adjustment
- Customized logo marking
- Custom packaging solutions
- RoHS / REACH compliant production
Applications
The RD121N-H 12mm metal shaft rotary potentiometer is suitable for:
- Audio amplifiers
- Mixing consoles
- Musical instruments
- Speaker systems
- Industrial control equipment
- Test and measurement instruments
- Communication devices
- Medical electronic equipment
- Consumer electronics
- Automation control systems
- OEM electronic assemblies
Its combination of metal shaft durability, horizontal PCB mounting, threaded fixing structure, and precision adjustment capability makes it suitable for professional and commercial electronic applications.
FAQ
Q1. What type of shaft does RD121N-H use?
It uses a 12mm metal shaft designed for durable and stable rotary operation.
Q2. Is this potentiometer suitable for PCB mounting?
Yes. The RD121N-H is designed for horizontal PCB mounting with a support bracket.
Q3. Is it single or dual channel?
The RD121N-H is a single-gang rotary potentiometer.
Q4. Does it have a threaded mounting sleeve?
Yes. It features a threaded bushing for secure equipment installation.
Q5. Can resistance values be customized?
Yes. Resistance values from 1kΩ to 1MΩ and different taper options are available.
Q6. What is the minimum order quantity?
MOQ is 3,000 pieces, with better pricing available for higher-volume orders.
Why Choose RD121N-H?
- 12mm durable metal shaft
- Horizontal PCB mounting design
- Threaded bushing for secure fixing
- Single-gang precision adjustment
- Integrated mounting bracket
- Low noise and stable output
- Mechanical life ≥10,000 cycles
- OEM/ODM customization support
- Factory direct supply
- Competitive bulk pricing
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