Product Introduction
The RA091N-H-F is a compact 9mm insulated shaft rotary potentiometer designed for high-density electronic equipment and precision audio control boards. Featuring a durable plastic D-type shaft and a fully enclosed housing, this single-unit potentiometer delivers reliable electrical attenuation and long operational stability.
Engineered with high-grade carbon film resistive elements, it ensures smooth rotational performance, minimal operating noise, and consistent signal transmission. The horizontal PCB mounting configuration with grounding support pins allows secure structural attachment and efficient wave soldering.
Offering exceptional manufacturing value, this miniature rotary potentiometer provides global OEMs with a reliable, cost-effective component backed by flexible volume pricing and robust factory supply capabilities.
Key Features
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Compact 9mm Enclosed Plastic Housing:
Built inside a miniature 9mm housing with insulated carbon tracks, this potentiometer protects internal wiper components from environmental dust and humidity. The compact footprint preserves valuable PCB real estate for multi-channel portable electronics.
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Insulated D-Type Plastic Shaft:
Equipped with a non-conductive plastic D-type shaft, the component provides excellent electrical isolation, preventing static discharge interference and ground loops. The flat-edge profile ensures secure, slip-free push-on attachment for matching control knobs.
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Horizontal Right-Angle Mount with Support Pins:
Designed with horizontal right-angle terminal pins and reinforced grounding metal brackets, it offers superior mechanical stability on printed circuit boards. This layout resists physical stress during frequent user adjustments.
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Smooth Rotational Torque Control:
Featuring a $280^\circ \pm 10^\circ$ total rotational angle and a balanced operating torque of 10 to 100 gf.cm, it delivers precise tactile control. The predictable resistance curve allows accurate, repeatable voltage adjustments.
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Cost-Effective High-Volume OEM Production:
Available with a competitive MOQ of 5,000 pieces at a direct-factory unit price of $0.10 USD, this model offers outstanding scalability with lower production overhead and tier-based bulk discounts.
Technical Specifications
| Item | Specification |
| Product Model | RA091N-H-F |
| Product Type | Horizontal Single Unit Insulated Shaft Rotary Potentiometer |
| Series | RA091 / RA092 / RA093 / RA094 Series |
| Travel Length | N/A ($280^\circ \pm 10^\circ$ Rotational Angle) |
| Case Type | 9mm Enclosed Insulated Shaft with Mounting Brackets |
| Case Size | 9mm Miniature Square Profile, Horizontal Mount |
| Protection Design | Fully Enclosed Insulated Housing |
| Operating Force | Rotational Torque: 10 ~ 100 gf.cm |
| Shaft Stop Strength | ≤ 3 kgf.cm |
| Lever Wobble | N/A (Push & Pull Strength: ≥ 3 kgf.cm) |
| Click Force | Optional Center Click or 21 Click (30 ~ 150 gf.cm) |
| Total Resistance Range | 1 kΩ < R < 1 MΩ (±20%), R ≤ 1 kΩ or R ≥ 1 MΩ (±30%) |
| Resistance Taper | Linear Taper B / Audio Taper A / Custom Curves |
| Power Rating | ≤ 0.05 W |
| Max. Operating Voltage | 50V AC, 20V DC |
| Residual Resistance | $R_{1-2}$ Less than 10 Ω; $R_{2-3}$ Less than 20 Ω |
| Sliding / Operating Noise | Rotational Noise ≤ 100 mV |
| Tracking Error | N/A (Single Unit Configuration) |
| Insulation Resistance | 100 MΩ min. at 250V DC |
| Withstanding Voltage | 1 minute at 250V AC |
Customization Options
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Shaft Length and Profiles: Tailored plastic shaft designs including F-type (D-shaped flat profile), Y-type or K-type knurled options with variable lengths from 10mm to 35mm.
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Resistance Values & Curves: Custom total resistance values spanning from 1kΩ to 1MΩ with specific linear (B) or logarithmic (A/C) tapers.
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Detent / Click Customization: Integration of smooth rotation or tactile center click / multi-click positioning to suit specific interface user requirements.
Applications
The RA091N-H-F 9mm miniature rotary potentiometer is widely used in space-constrained electronic designs. Primary application scenarios include: portable audio players, mini multimedia speakers, guitar effects pedals, small mixing consoles, handheld test instruments, LED lighting dimmers, intercom control boards, computer peripheral devices, consumer home appliances, electronic toy controllers, automotive dashboard audio modules, and communication radio gear. Its insulated plastic D-shaft provides safe handling and reliable performance across modern consumer and industrial electronics.
FAQ
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What is the minimum order quantity and unit price for the RA091N-H-F?
The minimum order quantity is 5,000 pieces at an economical factory price of $0.10 USD per unit, with quantity-based tier discounts.
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What are the main benefits of an insulated plastic shaft?
The non-conductive plastic shaft prevents static electricity discharge and eliminates ground loop interference, increasing user safety.
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Can the D-type plastic shaft length be customized for our enclosure?
Yes, we offer fully customizable shaft lengths (such as 15mm, 20mm, or 25mm) and custom flat-edge orientations.
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What type of PCB mounting does this model support?
It utilizes a horizontal right-angle pin configuration supplemented by metal mounting support brackets for secure mechanical attachment.
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What is the rated power capacity of this 9mm potentiometer?
This miniature model is rated for a maximum power dissipation of 0.05W under standard operating conditions.
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What is the expected mechanical rotational lifespan?
The component is engineered for durable performance, rated for a total operational lifespan exceeding 10,000 cycles.
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