TLP781F(D4GR-TP7,F Optoisolator Equivalent & Substitute Parts

Part Overview

The TLP781F(D4GR-TP7,F is a photocoupler optoisolator manufactured by Toshiba Semiconductor and Storage, designed for high-voltage isolation applications. This component features transistor output configuration with 5000Vrms isolation voltage rating and is packaged in 4-SMD surface mount format. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

TLP781F(D4GR-TP7,F

Toshiba Semiconductor and StorageIn Stock: 1014TLP781F(D4GR-TP7,F Datasheet

Current PartRFQ

TLP785F(D4GRT7,F

Toshiba Semiconductor and StorageIn Stock: 2840TLP785F(D4GRT7,F Datasheet

DirectRFQ

TLP785(GR-TP6,F)

Toshiba Semiconductor and StorageIn Stock: 13910TLP785(GR-TP6,F) Datasheet

Parametric EquivalentRFQ

TLP785F(GR-TP7,F

Toshiba Semiconductor and StorageIn Stock: 808TLP785F(GR-TP7,F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLP781F(D4GR-TP7,F are identified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Electrical Parameters (Must Match):

• Voltage - Isolation: 5000Vrms
• Number of Channels: 1
• Output Type: Transistor
• Current Transfer Ratio range: 100% to 300% @ 5mA
• Turn On / Turn Off Time: 3µs, 3µs
• Rise / Fall Time: 2µs, 3µs
• Voltage - Output (Max): 80V
• Current - Output / Channel: 50mA
• Vce Saturation (Max): 400mV
• Operating Temperature: -55°C ~ 110°C
• Input Type: DC

Mechanical Parameters (Allowable Variations):

• Mounting Type: Surface Mount or Through Hole
• Package / Case: 4-SMD or 4-DIP configurations
• Packaging format: Standard or Tape & Reel

Substitutes are grouped into two categories: direct manufacturer equivalents (different package/mounting) and parametric equivalents (identical electrical specifications with packaging variations).

Parameter Comparison

Engineering Selection Recommendations

For Surface Mount Applications (4-SMD Package): TLP785(GR-TP6,F and TLP785F(GR-TP7,F are direct parametric equivalents to the TLP781F(D4GR-TP7,F. Both maintain identical electrical specifications and surface mount packaging. TLP785(GR-TP6,F is available in Tape & Reel packaging format and carries RoHS Compliant certification. TLP785F(GR-TP7,F is available in standard packaging. Both parts are in active production status, providing long-term availability assurance.

For Through Hole Applications (4-DIP Package): TLP785F(D4GRT7,F provides a through-hole alternative with identical electrical performance. This part is suitable for applications requiring DIP package configuration and is in active production status.

Product Status Consideration: The original TLP781F(D4GR-TP7,F is classified as obsolete. All three substitute parts (TLP785F(D4GRT7,F, TLP785(GR-TP6,F, and TLP785F(GR-TP7,F) are in active production, ensuring continued availability and manufacturing support.

Frequently Asked Questions (FAQ)

Q: Can TLP785F(D4GRT7,F replace TLP781F(D4GR-TP7,F in existing designs? A: Yes, TLP785F(D4GRT7,F is electrically equivalent with identical isolation voltage, current transfer ratio, timing characteristics, and output specifications. The primary difference is the package format: TLP785F(D4GRT7,F uses 4-DIP through-hole mounting while TLP781F(D4GR-TP7,F uses 4-SMD surface mount. PCB layout modification is required for this substitution.

Q: What is the difference between TLP785(GR-TP6,F and TLP785F(GR-TP7,F? A: Both parts are parametric equivalents with identical electrical specifications and 4-SMD surface mount packaging. TLP785(GR-TP6,F is supplied in Tape & Reel format and carries RoHS Compliant certification. TLP785F(GR-TP7,F is available in standard packaging. Selection depends on packaging format requirements and RoHS compliance mandates.

Q: Are all substitute parts pin-compatible with the original TLP781F(D4GR-TP7,F? A: TLP785(GR-TP6,F and TLP785F(GR-TP7,F maintain identical 4-SMD pin configuration and are directly pin-compatible. TLP785F(D4GRT7,F uses 4-DIP package format and requires PCB redesign for pin mapping.

Q: What is the inventory status of substitute parts? A: TLP785(GR-TP6,F has the highest inventory availability at 13,874 pieces. TLP785F(D4GRT7,F has 2,806 pieces in stock. TLP785F(GR-TP7,F has 723 pieces available. All parts are new original stock from Toshiba Semiconductor and Storage.

Q: Do all substitute parts meet the same isolation voltage specification? A: Yes, all substitute parts maintain the 5000Vrms isolation voltage rating, identical to the original TLP781F(D4GR-TP7,F. This specification is consistent across all equivalent alternatives.