AG10G2R2E Audio Gold Wirewound Resistor Datasheet Summary

1. General Overview

The AG10G2R2E is a high-performance fixed wirewound resistor from Ohmite’s Audio Gold product family, specifically engineered for high-end audio applications such as loudspeakers, amplifiers, and crossover networks. Designed with non-magnetic materials and a mono-metallic copper-nickel construction, this resistor minimizes signal distortion, thermal electromotive force (EMF), and current noise, delivering superior mid-range frequency performance and stability. It features a 10W power rating, 2.2Ω resistance value, and RoHS compliance, making it suitable for both consumer and professional audio equipment where reliability and audio fidelity are critical. The through-hole axial leaded package enables easy PCB mounting, while the flameproof Centohm® coating ensures durability in demanding operating conditions.

2. Key Specifications

2.1 Electrical Characteristics

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2.2 Mechanical & Physical Characteristics

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2.3 Material & Compliance

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3. Functional Features

3.1 Core Capabilities

• Audio-Optimized Design: Non-magnetic materials eliminate interference from stray magnetic fields, reducing shielding requirements and improving sound quality in audio circuits.
• Low Distortion Performance: Mono-metallic construction and welded connections minimize thermal EMF and current noise, preserving signal integrity in sensitive audio applications.
• Robust Power Handling: 10W rated power with 10× overload capability for 5 seconds ensures reliability under transient load conditions.
• Stable Operation: 50ppm/°C temperature coefficient and linear derating curve provide consistent resistance across the full operating temperature range (-40°C to 275°C).
• Flameproof Coating: Centohm® coating meets safety standards, preventing flame spread in case of overload or fault.
• Non-Inductive Option: Available in non-inductive variants (per series feature) for applications where inductance could impact performance (e.g., high-frequency crossover networks).

3.2 Application-Specific Advantages

• Ideal for use as source, emitter, or cathode resistors in audio amplifiers.
• Suitable for crossover networks in loudspeakers, where precise resistance values ensure accurate frequency division.
• Compatible with professional audio equipment, consumer hi-fi systems, and studio gear requiring low noise and high stability.

4. Package & Mounting Information

4.1 Packaging & Handling

• Mounting Type: Through-Hole Technology (THT) for PCB insertion.
• Lead Configuration: Axial leads (straight, wire-shaped) for standard through-hole soldering.
• Soldering Recommendations: Follow standard through-hole soldering practices; avoid exceeding 260°C for extended periods to protect the Centohm® coating.
• Storage Conditions: Store in dry, temperature-controlled environments (-40°C to 85°C, 10-90% relative humidity, non-condensing) to prevent terminal corrosion.

4.2 Ordering Code Breakdown

The AG10G2R2E part number follows Ohmite’s Audio Gold ordering convention:

• AG: Series (Audio Gold)
• 10: Power Rating (10W)
• G: Tolerance Code (2%)
• 2R2: Resistance Value (2.2Ω; "R" denotes decimal point)
• E: RoHS Compliance (RoHS 2.0 compliant)

5. Application Notes

• Derating Considerations: Reduce power dissipation linearly above 25°C (e.g., 50% power at 150°C, 0% at 275°C).
• Mounting Spacing: Allow adequate clearance around the resistor (minimum 3mm) to ensure proper heat dissipation and avoid thermal interference with adjacent components.
• Audio Circuit Integration: Use in crossover networks or balancing applications to maintain impedance stability and minimize signal degradation.
• Compliance: RoHS certification ensures suitability for export to the European Union and other regions enforcing hazardous substance restrictions.

6. Ordering & Compliance Details

• Manufacturer: Ohmite Manufacturing Company
• Series: Audio Gold (AG)
• Alternative Part Numbers: AG10J2R2E (5% tolerance variant, closest equivalent)
• RoHS Status: Compliant (Directive 2011/65/EU)
• Availability: Supplied in bulk or tape-and-reel packaging (contact Ohmite for specific packaging options)
• Technical Support: Contact Ohmite at +1-847-675-2600 or [email protected] for additional specifications or application assistance.