TLP734F(D4-C173,F) Equivalent & Substitute Parts

Part Overview

The TLP734F(D4-C173,F) is a photocoupler optoisolator manufactured by Toshiba Semiconductor and Storage, classified as an optoisolator output channel component. This part is currently listed as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design requirements and component procurement. The TLP734 series provides electrical isolation through optical coupling technology, making substitute selection critical for maintaining circuit performance and reliability in applications requiring galvanic isolation.

Substiute Parts

TLP734F(D4-C173,F)

Toshiba Semiconductor and StorageIn Stock: 1229TLP734F(D4-C173,F) Datasheet

Current PartRFQ

TLP785

Toshiba Semiconductor and StorageIn Stock: 39299TLP785 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The TLP785 is identified as a direct substitute for the TLP734F(D4-C173,F) based on the following substitution criteria:

Common Classification Parameters:

• Category: Optoisolators (photocoupler technology)
• Manufacturer: Toshiba Semiconductor and Storage (same manufacturer ensures design continuity)
• Moisture Sensitivity Level: 1 (Unlimited) — identical environmental handling requirements
• Export Classification: EAR99 — same regulatory classification
• HTSUS Code: 8541.49.8000 — same tariff classification

Functional Compatibility Basis: The TLP785 maintains the core optoisolator function with defined electrical isolation and signal transmission characteristics. Both components operate within the same product ecosystem and share compatible packaging and mounting methodologies within the Toshiba optoisolator portfolio.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The TLP734F(D4-C173,F) is obsolete, making the TLP785 the appropriate active alternative from Toshiba's optoisolator portfolio. The TLP785 maintains active production status and full manufacturer support, ensuring long-term component availability and supply chain continuity.

Compliance and Certification: Both components share identical export classification (EAR99) and tariff codes (8541.49.8000), confirming regulatory equivalence. The identical MSL rating (1 — Unlimited) indicates equivalent moisture handling and storage requirements, eliminating additional environmental qualification needs.

Manufacturer Continuity: Selection of the TLP785 preserves the Toshiba Semiconductor and Storage manufacturer relationship, maintaining design consistency within the optoisolator product family and supporting existing supplier relationships.

Frequently Asked Questions (FAQ)

Q: Why is the TLP734F(D4-C173,F) being replaced? A: The TLP734F(D4-C173,F) is classified as obsolete. The TLP785 is the active substitute from Toshiba's current optoisolator product line, ensuring ongoing availability and manufacturer support.

Q: Are the TLP734F(D4-C173,F) and TLP785 pin-compatible? A: Both components use 4-DIP packaging (0.300", 7.62mm). Pin compatibility must be verified against detailed pinout documentation for your specific application circuit.

Q: What are the key electrical differences between these components? A: The TLP785 provides specified isolation voltage of 5000Vrms, transistor output configuration, maximum output voltage of 80V, and output current of 50mA per channel. The TLP734F(D4-C173,F) detailed electrical specifications were not provided in the available data.

Q: Do both components have the same moisture sensitivity requirements? A: Yes. Both components carry MSL rating 1 (Unlimited), indicating identical moisture sensitivity levels and storage condition requirements.

Q: Can I use the TLP785 as a direct drop-in replacement? A: Functional substitution is based on shared optoisolator classification, identical manufacturer, and equivalent regulatory compliance. Circuit-level compatibility requires verification of electrical specifications, pinout configuration, and application requirements against your design documentation.