TLP785(Y-LF6,F) Optoisolator Equivalent & Substitute Parts

Part Overview

The TLP785(Y-LF6,F) is an optoisolator with transistor output manufactured by Toshiba Semiconductor and Storage. This component provides galvanic isolation with a 5000Vrms isolation voltage rating and is designed for applications requiring high-voltage isolation in a compact 4-DIP package. The part is currently in active production status with 822 units in stock. Substitute parts are identified when they maintain identical electrical performance and mechanical compatibility across all critical isolation, switching, and output parameters.

Substiute Parts

TLP785(Y-LF6,F
Toshiba Semiconductor and StorageIn Stock: 891TLP785(Y-LF6,F Datasheet
TLP785(Y-LF6,F
Current Part
TLP785(Y,F)
Toshiba Semiconductor and StorageIn Stock: 1021TLP785(Y,F) Datasheet
TLP785(Y,F)
Parametric Equivalent

Key Parameters

Parameter Value
Manufacturer Part Number TLP785(Y-LF6,F)
Manufacturer Toshiba Semiconductor and Storage
Category Optoisolators
Number of Channels 1
Voltage - Isolation 5000Vrms
Current Transfer Ratio (Min) 50% @ 5mA
Current Transfer Ratio (Max) 150% @ 5mA
Output Type Transistor
Voltage - Output (Max) 80V
Current - Output / Channel 50mA
Operating Temperature -55°C ~ 110°C
Package / Case 4-DIP (0.300", 7.62mm)
Mounting Type Through Hole
Product Status Active

Substitute Part Grouping Explanation

Substitute parts for the TLP785(Y-LF6,F) are identified based on strict equivalence across the following critical parameters:

  • Isolation Voltage: 5000Vrms (primary isolation specification)
  • Number of Channels: 1 (functional configuration)
  • Output Type: Transistor (output stage architecture)
  • Current Transfer Ratio Range: 50% to 150% @ 5mA (optical coupling efficiency)
  • Maximum Output Voltage: 80V (voltage handling capability)
  • Maximum Output Current: 50mA per channel (current capacity)
  • Package Type: 4-DIP (0.300", 7.62mm) (mechanical and electrical footprint)
  • Mounting Type: Through Hole (assembly compatibility)
  • Operating Temperature Range: -55°C ~ 110°C (thermal operating envelope)

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes. Packaging variations (such as Tube vs. other formats) do not affect functional substitution eligibility.

Parameter Comparison

Parameter TLP785(Y-LF6,F) TLP785(Y,F)
Manufacturer Toshiba Semiconductor and Storage Toshiba Semiconductor and Storage
Number of Channels 1 1
Voltage - Isolation 5000Vrms 5000Vrms
Current Transfer Ratio (Min) 50% @ 5mA 50% @ 5mA
Current Transfer Ratio (Max) 150% @ 5mA 150% @ 5mA
Turn On / Turn Off Time (Typ) 3µs, 3µs 3µs, 3µs
Rise / Fall Time (Typ) 2µs, 3µs 2µs, 3µs
Output Type Transistor Transistor
Voltage - Output (Max) 80V 80V
Current - Output / Channel 50mA 50mA
Voltage - Forward (Vf) (Typ) 1.15V 1.15V
Current - DC Forward (If) (Max) 60 mA 60 mA
Vce Saturation (Max) 400mV 400mV
Operating Temperature -55°C ~ 110°C -55°C ~ 110°C
Package / Case 4-DIP (0.300", 7.62mm) 4-DIP (0.300", 7.62mm)
Mounting Type Through Hole Through Hole
Product Status Active Active
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited)
ECCN EAR99 EAR99
HTSUS 8541.49.8000 8541.49.8000

Engineering Selection Recommendations

The TLP785(Y,F) is a direct parametric equivalent to the TLP785(Y-LF6,F). Both parts are manufactured by Toshiba Semiconductor and Storage and maintain identical electrical specifications across all isolation, switching, and output parameters. Both parts carry Active product status and are RoHS Compliant. The primary difference is packaging format: TLP785(Y-LF6,F) is supplied in standard packaging, while TLP785(Y,F) is supplied in Tube packaging. This distinction affects only supply chain and handling procedures, not functional performance or circuit compatibility.

Selection between these parts should be based on packaging and supply requirements rather than electrical performance, as both parts are fully interchangeable in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can TLP785(Y,F) be used as a direct replacement for TLP785(Y-LF6,F)?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, isolation voltage, output characteristics, and package footprint. The parts are interchangeable in all circuit applications.

Q: What is the difference between TLP785(Y-LF6,F) and TLP785(Y,F)?

A: The difference is packaging format only. TLP785(Y-LF6,F) uses standard packaging, while TLP785(Y,F) uses Tube packaging. Electrical performance and mechanical compatibility are identical.

Q: Are both parts suitable for high-voltage isolation applications?

A: Yes. Both parts provide 5000Vrms isolation voltage and are rated for -55°C to 110°C operating temperature. They are suitable for applications requiring galvanic isolation in industrial and consumer electronics.

Q: What is the 4-DIP package footprint?

A: The 4-DIP package measures 0.300 inches (7.62mm) in width and is a through-hole mounted component. Both substitute parts use this identical package specification.

Q: Are there any compliance or certification differences between the parts?

A: No. Both parts carry identical compliance certifications: RoHS Compliant, Moisture Sensitivity Level 1 (Unlimited), ECCN EAR99, and HTSUS 8541.49.8000.

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