Headphone Plugs and IEM Connectors

Headphone plugs and IEM connectors are 2.5 mm, 3.5 mm, and 4.4 mm plugs and MMCX or 0.78 mm 2-Pin pairs with gold-plated contacts for cable builders.

Tray of unassembled 2.5, 3.5 and 4.4 mm plugs with solder tabs, and pairs of MMCX and 2-Pin IEM connectors with red and blue rings

2 products

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Spec sheet (PDF)

About Headphone Plugs and IEM Connectors

This category supplies plugs and connectors for builders who terminate their own headphone and IEM cables. Player-end plugs come in 2.5 mm 4-pole balanced, 3.5 mm TRS, and 4.4 mm 5-pole balanced versions, with solder cups, aluminum-alloy housings in silver, gold, or black, and gold-plated brass contacts; pole maps are supplied for every type. Earphone-end connectors come in MMCX and flush 0.78 mm 2-Pin versions, sold in left and right pairs with gold-plated contacts, side marking, and clear, black, or metal housings. Stock packs hold 1, 10, or 50 pieces or pairs.

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For your own line, you can change housing colors and finishes, add a laser-engraved logo to the plug housings, and have packs labeled with your part number and barcode. Samples are available before you order; MOQ is low.

Key facts

  • What's in this range: Solder-cup headphone plugs (2.5 mm 4-pole, 3.5 mm TRS, 4.4 mm 5-pole) and MMCX or flush 0.78 mm 2-Pin connector pairs
  • Plugs: Aluminum-alloy housings in silver, gold, or black; gold-plated brass contacts; cable entry up to 5.0 mm; pole maps supplied
  • IEM connectors: Left and right pairs (blue ring left, red ring right); clear, black, or metal housings; gold-plated brass; cable entry up to 3.0 mm
  • Pack sizes: Packs of 1, 10, or 50 plugs or pairs, in polybags
  • Customization: Housing colors and finishes, laser-engraved logo on plug housings, recessed or extended 2-Pin versions, and part-number labels
  • Samples: Sample plugs and pairs are available so you can check dimensions and fit before you order

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How the models compare

Compare all 2 models
Headphone Plugs and IEM Connectors: model comparison
ModelConnectorsTypeCable entryPack sizesPackaging
Headphone Plugs for Cable Builders — 2.5 / 3.5 / 4.4 mmHA-DIY-022.5 mm balanced TRRS, 3.5 mm (1/8") TRS, 4.4 mm 5-pole balancedGold-plated contactsPlug≤ 5 mm1, 10, 50Polybag
MMCX & 0.78 mm 2-Pin Connectors for Cable BuildersHA-DIY-03MMCX, 0.78 mm 2-PinGold-plated contactsConnector pairs (L/R)≤ 3 mm1, 10, 50Polybag

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