503904-1 ST simplex multimode fiber optic connector plug by TE Connectivity. Features 125μm cladding diameter, bayonet lock, and free hanging in-line mounting.
Mfr Part #:

503904-1

Available from 1 distributors
Mfr Name: TE Connectivity
TE Connectivity
ST simplex multimode fiber optic connector plug by TE Connectivity. Features 125μm cladding diameter, bayonet lock, and free hanging in-line mounting.
Total Stock: 100 pcs
$ Price Range: $7.43

503904-1 Available from 1 distributor

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
100 pcs
100 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

503904-1 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Boot Color
Cable Diameter
Connector Style
Connector Type
Fastening Type
Features
Fiber Cladding Diameter
Mode
Mounting Type
Simplex

503904-1 Description

Short technical summary and product information.

The TE Connectivity 503904-1 is an ST-style fiber optic connector plug designed for multimode simplex applications. It accommodates fiber with a 125μm cladding diameter and a 3.0mm cable diameter.

 

Mechanically, the connector uses a bayonet lock for fast and secure mating. The free hanging (in-line) mounting design makes it suitable for cable-to-cable connections. A black boot and strain relief provide cable support, and the connector includes a dust cap for protection when not in use.

 

The epoxyless design simplifies field termination. This connector is intended for use in fiber optic networks requiring reliable simplex connections.

503904-1 Quick Information

Product Type: Fiber Optic Connector Plug
Canonical Name: TE Connectivity 503904-1 ST Multimode Simplex Fiber Optic Connector Plug, 125μm Cladding
Subcategory: Simplex Connector Plug

503904-1 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: Non-Compliant

503904-1 Estimated Pricing

Qty Low High
400+ $7.43 $7.43

Estimated market price range - modelled values for guidance only, not live distributor offers.

503904-1 Features

  • ST simplex multimode fiber optic connector.
  • 125μm cladding and 3.0mm cable diameter.
  • Bayonet lock for quick secure mating.
  • Free hanging in-line mounting design.
  • Includes dust cap and strain relief.

503904-1 Applications

  • Fiber optic data communication networks.
  • Local area network fiber connections.
  • Test and measurement equipment interfaces.
  • Patch panel and cable assembly use.

503904-1 FAQs

7 frequently asked questions generated from this part’s specifications.
What connector style is the TE Connectivity 503904-1?

It is an ST style connector.

Is the 503904-1 for singlemode or multimode fiber?

It is designed for multimode fiber.

What is the cladding diameter of this connector?

The fiber cladding diameter is 125µm.

What is the mounting type of the 503904-1?

It is a free hanging (in-line) mount.

Is this connector simplex or duplex?

It is a simplex connector.

What cable diameter does the 503904-1 support?

It supports a 3.0mm cable diameter.

What fastening type does this ST connector use?

It uses a bayonet lock.

503904-1 Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
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5504001-1
5504001-1
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CONN FIBER ST PLUG SMPLX 125UM
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