FTLF8519P2BTL Equivalent & Substitute Parts

Part Overview

The FTLF8519P2BTL is a transceiver module manufactured by Finisar Corporation, designed for Ethernet applications operating at 2.125Gbps with 850nm wavelength. This SFP (Small Form-factor Pluggable) module features LC duplex connectors and operates within a 3V to 3.6V supply voltage range. The product is currently classified as obsolete, making identification of equivalent and substitute parts essential for system maintenance, legacy system support, and component procurement planning.

Substiute Parts

FTLF8519P2BTL

Finisar CorporationIn Stock: 748FTLF8519P2BTL Datasheet

Current PartRFQ

FTLF8519P3BTL

CoherentIn Stock: 1347FTLF8519P3BTL Datasheet

DirectRFQ

FTLF8519P3BNL

CoherentIn Stock: 1657FTLF8519P3BNL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FTLF8519P2BTL are qualified based on the following critical parameters that determine functional compatibility:

• Data Rate: 2.125Gbps (exact match required)
• Wavelength: 850nm (exact match required)
• Connector Type: LC Duplex (exact match required)
• Mounting Type: Pluggable, SFP (exact match required)
• Voltage - Supply: Compatible range (original: 3V ~ 3.6V; substitutes: 3.3V)
• Applications: Ethernet or General Purpose (both acceptable for Ethernet systems)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match)

The identified substitute parts FTLF8519P3BTL and FTLF8519P3BNL share the same base product number (FTLF8519) and maintain all critical electrical and mechanical parameters. Both substitutes are manufactured by Coherent and carry active product status with current inventory availability.

Parameter Comparison

Engineering Selection Recommendations

Both FTLF8519P3BTL and FTLF8519P3BNL are suitable substitutes for the obsolete FTLF8519P2BTL based on electrical and mechanical compatibility. Selection between the two substitutes should be based on the following factors:

FTLF8519P3BTL is designated as a direct manufacturer substitute and is supplied in bulk packaging. This part carries active product status and ROHS3 compliance certification.

FTLF8519P3BNL is the manufacturer-recommended substitute, supplied in tray packaging. This part also carries active product status and ROHS3 compliance certification, with additional REACH Unaffected status documentation.

The voltage supply specification for both substitutes is 3.3V, which falls within the original part's 3V to 3.6V operating range, ensuring compatibility with existing system designs. Both parts maintain identical data rate, wavelength, connector type, and mounting specifications as the original component.

Frequently Asked Questions (FAQ)

Q: Can FTLF8519P3BTL and FTLF8519P3BNL be used interchangeably with FTLF8519P2BTL?

A: Yes. Both substitute parts maintain identical electrical specifications (2.125Gbps data rate, 850nm wavelength, 3.3V supply voltage) and mechanical specifications (LC duplex connectors, SFP pluggable mounting). The 3.3V supply voltage of the substitutes is compatible with the original part's 3V to 3.6V operating range.

Q: What is the difference between FTLF8519P3BTL and FTLF8519P3BNL?

A: The primary differences are packaging format and application classification. FTLF8519P3BTL is supplied in bulk packaging and specified for Ethernet applications. FTLF8519P3BNL is supplied in tray packaging and specified for general purpose applications. Both parts are electrically and mechanically identical and suitable for Ethernet system deployment.

Q: Why is the original FTLF8519P2BTL classified as obsolete?

A: Product obsolescence typically results from manufacturer discontinuation decisions. The availability of active substitute parts with identical functional specifications ensures continued system support and component availability.

Q: Are there any compliance differences between the original and substitute parts?

A: Both substitute parts carry ROHS3 compliance certification. FTLF8519P3BNL additionally documents REACH Unaffected status. The original part's compliance status is not specified in available documentation.

Q: What is the Moisture Sensitivity Level (MSL) significance for these parts?

A: All three parts carry MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage, handling, or installation. This specification is identical across the original and substitute parts.