TLP550(Y-LF1,F) Equivalent & Substitute Parts

Part Overview

The TLP550(Y-LF1,F) is a photocoupler optoisolator manufactured by Toshiba Semiconductor and Storage, designed for single-channel optical isolation applications. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, design updates, and procurement continuity. The TLP550 series provides galvanic isolation between input and output circuits, a critical function in applications requiring noise immunity and safety isolation.

Substiute Parts

TLP550(Y-LF1,F)

Toshiba Semiconductor and StorageIn Stock: 808TLP550(Y-LF1,F) Datasheet

Current PartRFQ

TLP2719(E

Toshiba Semiconductor and StorageIn Stock: 1340TLP2719(E Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The TLP2719(E) qualifies as a functional substitute for the TLP550(Y-LF1,F) based on the following substitution criteria:

Common Functional Parameters:

• Single-channel optoisolator architecture
• Toshiba Semiconductor and Storage manufacturer continuity
• Identical category classification (Optoisolators)
• Matching MSL rating of 1 (Unlimited)
• Identical ECCN and HTSUS classifications
• Active product status with current manufacturing support

The TLP2719(E) maintains the core isolation function of the obsolete TLP550 while offering enhanced specifications including higher isolation voltage (5000Vrms), faster data rate capability (1MBd), and improved common mode transient immunity (10kV/µs). These enhancements ensure compatibility with legacy system requirements while providing margin for modern design standards.

Parameter Comparison

Engineering Selection Recommendations

Substitution Basis: The TLP2719(E) is an active, currently manufactured optoisolator from Toshiba that maintains regulatory compliance (ECCN EAR99, HTSUS 8541.49.8000) and MSL classification identical to the obsolete TLP550(Y-LF1,F). Both components share single-channel architecture and manufacturer continuity, establishing direct functional equivalence.

Compliance Considerations: Both parts carry identical export control and tariff classifications, ensuring no regulatory complications in component substitution. The MSL 1 rating of both components indicates unlimited moisture sensitivity tolerance, eliminating moisture-related compatibility concerns.

Product Status Impact: The transition from obsolete TLP550(Y-LF1,F) to active TLP2719(E) ensures long-term supply chain stability, availability of technical documentation, and manufacturer support for design validation and production qualification.

Frequently Asked Questions (FAQ)

Q: What makes TLP2719(E) a valid substitute for the obsolete TLP550(Y-LF1,F)?

A: Both components are single-channel optoisolators from Toshiba Semiconductor and Storage with identical MSL ratings (1 - Unlimited) and regulatory classifications (ECCN EAR99, HTSUS 8541.49.8000). The TLP2719(E) is an active product with current manufacturing support, addressing the obsolescence of the TLP550(Y-LF1,F).

Q: Are there package compatibility considerations between these parts?

A: The TLP550(Y-LF1,F) packaging is not specified in available data. The TLP2719(E) is supplied in 6-SOIC (0.295", 7.50mm Width) surface mount package. Physical footprint verification is required during design integration to confirm PCB compatibility.

Q: Do the regulatory classifications remain unchanged with this substitution?

A: Yes. Both the TLP550(Y-LF1,F) and TLP2719(E) carry identical ECCN (EAR99) and HTSUS (8541.49.8000) classifications, ensuring no changes to export control or tariff treatment.

Q: What is the significance of the MSL 1 rating for both components?

A: MSL 1 (Unlimited) indicates both components have unlimited shelf life and require no special moisture control during storage or handling, eliminating moisture-related compatibility constraints in substitution.

Q: How does the TLP2719(E) enhance upon the TLP550(Y-LF1,F) specification?

A: The TLP2719(E) provides specified isolation voltage (5000Vrms), defined output type (Open Collector), supply voltage range (4.5V ~ 20V), operating temperature range (-40°C ~ 100°C), and common mode transient immunity (10kV/µs). These specifications establish clear performance margins for legacy system requirements.