Amphenol CONEC 17-300740 Fiber Optic LC Duplex Plug Connector

Part Overview

The Amphenol CONEC 17-300740 is a fiber optic plug connector with LC duplex configuration designed for multimode fiber applications. This connector features a bayonet lock fastening mechanism, beige housing with black boot, and operates across the temperature range of -40°C to 85°C. The product status is obsolete, making it necessary to identify active equivalent alternatives to ensure continued component availability for maintenance, repair, and new installations where this connector specification is required.

Substiute Parts

17-300740

Amphenol CONECIn Stock: 107617-300740 Datasheet

Current PartRFQ

17-300420

Amphenol CONECIn Stock: 133017-300420 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between 17-300740 and 17-300420 is valid based on matching electrical and mechanical parameters. Both connectors share identical specifications across all critical functional parameters: LC connector style, duplex configuration, multimode mode, bayonet lock fastening, identical cable diameter (8.0mm), free hanging mounting, IP67 ingress protection, matching housing and ferrule materials, identical operating temperature range, and equivalent compliance certifications (ROHS3 Compliant, REACH Unaffected, MSL 1).

The primary distinction between these parts is product status: 17-300740 is obsolete while 17-300420 is active. The 17-300420 serves as the current production equivalent and direct functional replacement. Packaging differences (17-300740 is not specified; 17-300420 is supplied in bag packaging) do not affect connector performance or compatibility.

Key substitution parameters verified:

• Connector Style: LC
• Connector Type: Plug
• Duplex Configuration: Duplex
• Mode: Multimode
• Cable Diameter: 8.0mm
• Fastening Type: Bayonet Lock
• Housing/Ferrule Materials: Zinc Die Cast Nickel Plated / Brass Nickel Plated
• Operating Temperature: -40°C ~ 85°C
• Compliance: ROHS3, REACH Unaffected

Parameter Comparison

Engineering Selection Recommendations

For new designs and ongoing applications, select Amphenol CONEC 17-300420 as the active equivalent to the obsolete 17-300740. Both parts are ROHS3 compliant and REACH unaffected, with identical MSL rating and environmental specifications. The 17-300420 is currently in active production with availability of 1231 units in stock, compared to 990 units for the obsolete 17-300740.

Component selection should be guided by product lifecycle status and supply chain continuity. The 17-300420 provides equivalent functional performance with the assurance of ongoing manufacturer support and availability.

Frequently Asked Questions (FAQ)

Q: Can 17-300420 replace 17-300740 in existing installations? A: Yes. Both connectors are identical in all functional and mechanical parameters including connector style, duplex configuration, fastening type, housing materials, and operating temperature range.

Q: What are the differences between 17-300740 and 17-300420? A: The primary difference is product status: 17-300740 is obsolete while 17-300420 is active production. Packaging also differs (17-300420 is supplied in bag form). All electrical and mechanical specifications are identical.

Q: Are the compliance certifications equivalent? A: Yes. Both parts carry ROHS3 compliance, REACH unaffected status, and MSL 1 rating. Neither part requires special moisture handling.

Q: Does the packaging difference affect connector performance? A: No. Packaging is a supply and logistics consideration only and does not affect connector performance, mating characteristics, or durability.

Q: Which part should be specified for new procurements? A: Specify 17-300420 for new procurements, as it is the active production equivalent with current manufacturer support and established supply chain availability.

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