MA3FJ3
Product Features
- Reliable Signal Conversion: Seamlessly bridges 3-pin XLR female and 1/4″ jack female connections, solving compatibility issues between professional audio gear.
- Built to Last: Rugged zinc alloy housing with chrome plating delivers long-term durability, even in demanding touring and studio environments.
- Premium Contact Quality: Gold-plated copper alloy contacts ensure low resistance (≤3 mΩ inner, ≤6 mΩ outer) and stable, low-loss signal transfer.
- Proven Durability: Rated for over 1,000 mating cycles, minimizing replacement costs and downtime.
- Strong Electrical Safety Margins: High dielectric strength (1.5 kVdc XLR / 1 kVdc Jack) and insulation resistance (>2 GΩ) protect against electrical faults and interference.
- Wide Temperature Tolerance: Operates reliably from -30°C to +80°C, suitable for varied climates and outdoor events.
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Details
| Product Parameters | |
| Connection Type | Adapter |
| Electrical Parameters | |
| Contact resistance |
≤ 3 mΩ (inner, XLR)2 ≤ 6 mΩ (outer) |
| Dielectric strength |
1.5 kVdc (XLR)
1 kVdc (Jack) |
| Insulation resistance | > 2 GΩ (initial) |
| Mechanical Parameters | |
| Service life | > 1000 mating cycles |
| Material and Environmental Parameters | |
| Contacts | Cu alloy |
| Contact plating | Au |
| Housing | Zinc alloy |
| Housing plating | Cr |
| Protection class | IP40 |
| Temperature range | -30°C ~ +80°C |
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Description
The MA3FJ3 is a circular metal adapter from Seetronic that converts a 3-pin female XLR connection to a 1/4″ (6.35mm) female jack connection. Built with a rugged zinc alloy housing, this adapter is designed for durability and reliable signal transfer in professional audio applications, offering long service life and consistent performance across repeated use.
Key Features
- Dual Connector Compatibility: Converts 3-pin XLR female to 1/4″ jack female, enabling flexible connectivity between mismatched audio equipment.
- Rugged Construction: Zinc alloy housing provides durability and resistance to wear in demanding professional environments.
- High Reliability: Rated for over 1,000 mating cycles, ensuring consistent performance over extended use.
- Low Contact Resistance: ≤3 mΩ (inner, XLR) and ≤6 mΩ (outer) for stable, low-loss signal transmission.
- Strong Dielectric Protection: Withstands 1.5 kVdc (XLR side) and 1 kVdc (Jack side), safeguarding against electrical breakdown.
- High Insulation Resistance: Greater than 2 GΩ, minimizing signal leakage and interference.
- Compact Form Factor: Overall length of 92.20±0.80mm with a barrel diameter of Ø15.80±0.30mm, fitting easily into standard cable and rack setups.
Material and Environmental Specifications
- Contact Material: Copper (Cu) alloy contacts for efficient conductivity.
- Contact Plating: Gold (Au) plating for corrosion resistance and stable low-resistance connections.
- Housing Material: Zinc alloy for structural strength and durability.
- Housing Plating: Chrome (Cr) plating for a polished finish and added surface protection.
- Protection Rating: IP40, providing basic protection against solid foreign objects.
- Operating Temperature Range: -30°C to +80°C, suitable for a wide range of indoor and touring environments.
Packaging and Accessories
- Standard Packaging: Individually packed 1 piece per bag, with 50 pcs per inner carton and 5 inner cartons per master carton (250 pcs per master carton), suitable for bulk distribution and retail repackaging.
- No Accessories Included: Ships as a standalone adapter with no additional screws, nuts, or fastener plates included.
Assembly Instructions
- Connect the XLR Side: Insert a standard 3-pin male XLR connector into the adapter’s female XLR end until it locks securely in place.
- Connect the Jack Side: Insert a 1/4″ (6.35mm) male jack plug into the adapter’s female jack end to complete the signal path.
- Verify Secure Fit: Ensure both connections are fully seated to maintain low contact resistance and prevent signal interruption.
- Inspect Before Use: Check the housing and contacts periodically for wear, especially in high-frequency use environments, to maintain performance over the rated 1,000+ mating cycles.




