Headphone Plugs for Cable Builders — 2.5 / 3.5 / 4.4 mm
Solder-cup headphone plugs in 2.5 mm balanced, 3.5 mm and 4.4 mm balanced versions, with metal housings and gold-plated contacts, sold in packs.
- Low MOQ
- Stock samples available
- We reply within 1 business day
Why no price list?
Pricing depends on the cable specification, customization and quantity, so every quote is prepared for your project.
Key specifications
- Component Type
- Plug
- Gender
- Male
- Cable Entry (Max. Cable OD)
- ≤ 5 mm
- Connector Type
- 2.5 mm balanced TRRS, 3.5 mm (1/8") TRS, 4.4 mm 5-pole balanced
What it is
Unassembled headphone plugs for people who build their own cables. Three plug types cover the common player outputs: 2.5 mm 4-pole balanced, 3.5 mm 3-pole (TRS) and 4.4 mm 5-pole balanced. Each plug has a metal housing, gold-plated contacts and solder cups for termination. They come in silver, gold or black housings and in packs of 1, 10 or 50.
The plugs carry no third-party brand markings, so they can go on your finished cables without conflict, and housings can carry your own logo.
Who it's for
- Custom cable workshops and independent builders.
- Earphone and cable brands that terminate cables in-house.
- Hobby and parts retailers serving DIY builders.
Build & specs (standard build)
- Types: 2.5 mm 4-pole, 3.5 mm TRS, 4.4 mm 5-pole
- Housing: aluminum alloy, silver, gold or black finish
- Contacts: gold-plated brass
- Termination: solder cups
- Cable entry: up to 5.0 mm cable diameter
- Pinout: 4.4 mm Tip L+, Ring 1 L−, Ring 2 R+, Ring 3 R−, Sleeve ground; pole maps supplied for all types
- Packaging: polybags by quantity
Housing dimensions can be checked on sample plugs before you order. A specific plating thickness is available on request and confirmed in writing at order.
Customization options
- Laser-engraved logo on the housing
- Other housing finishes and shapes, including L-shaped plugs and a 6.0 mm large-entry housing
- Packaging by quantity with your part number and barcode
- Plugs come with gold-plated contacts as standard; nickel-plated contacts are available as a customization.
Ordering notes
- Low MOQ. You can combine plug types and finishes in one order to reach the minimum, with a smaller minimum per design.
- Sample plugs are available before you order.
- Lead time depends on the customization and is confirmed in your quote.
- Specified by Haisen (Hong Kong). Manufactured in Guangdong, China by our manufacturing partners.
Specifications
General
| Model No. | HA-DIY-02 |
|---|---|
| Supply Form | Component |
| Country of Origin | China (Guangdong) |
Connectors
| Termination | Solder cup |
|---|
Details
| Component Type | Plug |
|---|---|
| Gender | Male |
| Housing Material | Aluminum alloy |
| Contact Plating | Gold |
| Contact Base Metal | Brass |
| Cable Entry (Max. Cable OD) | ≤ 5 mm |
| Pin Assignment | 2.5 mm: Tip L+, Ring 1 L−, Ring 2 R+, Sleeve R−; 3.5 mm: Tip L, Ring R, Sleeve GND; 4.4 mm: Tip L+, Ring 1 L−, Ring 2 R+, Ring 3 R−, Sleeve GND |
| Connector Type | 2.5 mm balanced TRRS, 3.5 mm (1/8") TRS, 4.4 mm 5-pole balanced |
Packaging
| Packaging Type | Polybag |
|---|
Specifications shown are our standard build for this product. Most items can be customized, and your quote confirms the final specification for your order.
Last reviewed
Customize this cable
Choose what you want to make your own — we confirm feasibility, MOQ and lead time in your quote.
Downloads
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FAQ
What is the largest cable these plugs accept?
All three plug types take cable up to 5.0 mm in overall diameter, which fits our 4-strand and 8-strand braided IEM cable core. A large-entry housing for cable up to 6.0 mm can be made to order.
Are the 2.5 mm and 4.4 mm plugs balanced?
Yes. The 2.5 mm plug has four poles and the 4.4 mm plug has five; both give left and right their own return. A pole map for each plug is supplied so you can wire them correctly.
Who buys this
Guides

- IEM & Headphone
MMCX vs 0.78 mm 2-Pin: IEM Connector Guide for Cable Makers
MMCX and 0.78 mm 2-Pin are the two widely used detachable connectors on in-ear monitors (IEMs). MMCX is a small snap-on coaxial connector that lets the cable rotate.
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HA-DIY-02
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