TLP785(D4-TP6,F) Equivalent & Substitute Parts

Part Overview

The TLP785(D4-TP6,F) is an optoisolator with transistor output manufactured by Toshiba Semiconductor and Storage. This component provides galvanic isolation up to 5000Vrms with a single channel configuration in a 4-SMD surface mount package. The part is currently in active production status with 1161 units in stock. Alternative equivalent parts may be required due to supply availability, packaging preferences, or specific compliance requirements in different procurement regions.

Key Parameters

Parameter	Value
Manufacturer	Toshiba Semiconductor and Storage
Category	Optoisolators
Number of Channels	1
Voltage - Isolation	5000Vrms
Current Transfer Ratio (Min)	50% @ 5mA
Current Transfer Ratio (Max)	600% @ 5mA
Output Type	Transistor
Voltage - Output (Max)	80V
Current - Output / Channel	50mA
Operating Temperature	-55°C ~ 110°C
Mounting Type	Surface Mount
Package / Case	4-SMD, Gull Wing
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the TLP785(D4-TP6,F) is determined by the following critical parameters:

Isolation Voltage: 5000Vrms (all substitutes must match)
Number of Channels: 1 channel (all substitutes must match)
Output Type: Transistor output (all substitutes must match)
Current Transfer Ratio Range: 50% to 600% @ 5mA (all substitutes must match)
Maximum Output Voltage: 80V (all substitutes must match)
Maximum Output Current: 50mA per channel (all substitutes must match)
Operating Temperature Range: -55°C ~ 110°C (all substitutes must match)
Mounting Type: Surface Mount (all substitutes must match)
Package Configuration: 4-SMD, Gull Wing (all substitutes must match)

All identified substitute parts meet these electrical and mechanical parameters. Variations in packaging designation (Tape & Reel vs. standard packaging), RoHS compliance status, and timing characteristics (Turn On/Off Time, Rise/Fall Time) do not disqualify substitution when core electrical specifications are identical.

Parameter Comparison

Parameter	TLP785(D4-TP6,F)	TLP785(D4GH-T6,F)	TLP785(D4GL-T6,F)	TLP785(TP6,F)	EL8171S1(TU)-G	VOL617AT
Manufacturer	Toshiba	Toshiba	Toshiba	Toshiba	Everlight	Vishay
Number of Channels	1	1	1	1	1	1
Voltage - Isolation	5000Vrms	5000Vrms	5000Vrms	5000Vrms	5000Vrms	5000Vrms
Current Transfer Ratio (Min)	50% @ 5mA	50% @ 5mA	50% @ 5mA	50% @ 5mA	50% @ 5mA	50% @ 5mA
Current Transfer Ratio (Max)	600% @ 5mA	600% @ 5mA	600% @ 5mA	600% @ 5mA	600% @ 5mA	600% @ 5mA
Output Type	Transistor	Transistor	Transistor	Transistor	Transistor	Transistor
Voltage - Output (Max)	80V	80V	80V	80V	80V	80V
Current - Output / Channel	50mA	50mA	50mA	50mA	50mA	50mA
Voltage - Forward (Vf) (Typ)	1.15V	1.15V	1.15V	1.15V	1.2V	1.16V
Current - DC Forward (If) (Max)	60mA	60mA	60mA	60mA	60mA	60mA
Vce Saturation (Max)	400mV	400mV	400mV	400mV	200mV	400mV
Operating Temperature	-55°C ~ 110°C	-55°C ~ 110°C	-55°C ~ 110°C	-55°C ~ 110°C	-55°C ~ 110°C	-55°C ~ 110°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	4-SMD, Gull Wing	4-SMD, Gull Wing	4-SMD, Gull Wing	4-SMD, Gull Wing	4-SMD, Gull Wing	4-SMD, Gull Wing
Product Status	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts listed maintain active production status and meet the core electrical and mechanical specifications of the TLP785(D4-TP6,F). Selection among equivalents should be based on the following factors:

Toshiba TLP785 Variants (TLP785(D4GH-T6,F), TLP785(D4GL-T6,F), TLP785(TP6,F)): These parts are direct Toshiba platform equivalents with identical electrical performance. The primary differences are packaging designations (Tape & Reel variants) and RoHS compliance status. TLP785(TP6,F) carries Moisture Sensitivity Level 1 (Unlimited), matching the original part specification.

Everlight EL8171S1(TU)-G: This part provides equivalent electrical performance with ROHS3 compliance and REACH unaffected status. The Vce Saturation specification is lower (200mV vs. 400mV), which may provide improved switching characteristics in specific applications. Rise/Fall Time specifications differ (6µs, 8µs vs. 2µs, 3µs).

Vishay VOL617AT: This part maintains full electrical equivalence with the original specification. The package designation is 4-SOP rather than 4-SMD, which may require PCB layout adjustment. Timing characteristics (Turn On/Off Time: 6µs, 5.5µs; Rise/Fall Time: 4.6µs, 5µs) differ from the original but remain within acceptable ranges for standard optoisolator applications.

Frequently Asked Questions (FAQ)

Q: Can I substitute TLP785(TP6,F) for TLP785(D4-TP6,F) in my design?

A: Yes. Both parts are Toshiba TLP785 platform components with identical electrical specifications including isolation voltage (5000Vrms), current transfer ratio (50-600% @ 5mA), output voltage (80V max), and output current (50mA). The primary difference is packaging designation. TLP785(TP6,F) is supplied in Tape & Reel format and carries RoHS compliance certification.

Q: What is the difference between the Toshiba TLP785 variants?

A: TLP785(D4GH-T6,F) and TLP785(D4GL-T6,F) are Tape & Reel packaged variants with RoHS compliance. TLP785(TP6,F) is also Tape & Reel packaged but carries Moisture Sensitivity Level 1 (Unlimited) designation. All three maintain identical electrical performance to the original TLP785(D4-TP6,F).

Q: Can I use the Everlight EL8171S1(TU)-G as a direct replacement?

A: Yes, from an electrical standpoint. The EL8171S1(TU)-G meets all core specifications: 5000Vrms isolation, 1 channel, 50-600% current transfer ratio, 80V output, and 50mA output current. The Vce Saturation is lower (200mV vs. 400mV), which may improve switching performance. Rise/Fall Time is slower (6µs, 8µs vs. 2µs, 3µs). Verify timing requirements in your specific application.

Q: What is the package difference between VOL617AT and the TLP785 parts?

A: VOL617AT uses a 4-SOP package designation, while TLP785 variants use 4-SMD with Gull Wing configuration. Both are surface mount packages with four pins in similar physical footprints. PCB layout compatibility should be verified before substitution.

Q: Are all substitute parts RoHS compliant?

A: TLP785(D4GH-T6,F), TLP785(D4GL-T6,F), TLP785(TP6,F), EL8171S1(TU)-G, and VOL617AT all carry RoHS compliance certifications. The original TLP785(D4-TP6,F) does not specify RoHS status in the provided data.

Q: Which substitute has the best availability?

A: VOL617AT has the highest inventory level at 28,700 units. TLP785(TP6,F) has 7,400 units. EL8171S1(TU)-G has 5,099 units. TLP785(D4GH-T6,F) has 5,006 units. TLP785(D4GL-T6,F) has 4,710 units.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message