TLP785(LF6,F) Equivalent & Substitute Parts

Part Overview

The TLP785(LF6,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-DIP package. The part is currently in active production status with 1157 units available in new original stock. Alternative part numbers are necessary to support supply chain flexibility, procurement from different packaging formats, and inventory management across manufacturing operations.

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
Package / Case	4-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
Product Status	Active

Substitute Part Grouping Explanation

The TLP785(F) qualifies as a parametric equivalent to the TLP785(LF6,F) based on the following substitution criteria:

All electrical parameters are identical across both part numbers, including isolation voltage (5000Vrms), current transfer ratio range (50% to 600% @ 5mA), output voltage maximum (80V), and output current per channel (50mA). Both components feature the same transistor output configuration, DC input type, and operating temperature range (-55°C ~ 110°C).

The mechanical interface is identical: both use 4-DIP through-hole mounting with 0.300" (7.62mm) package dimensions. The primary difference is packaging format: TLP785(LF6,F) is supplied in tape format, while TLP785(F) is supplied in tube format. This distinction affects procurement and handling but does not alter electrical or mechanical compatibility.

Both parts share the same base product number (TLP785), manufacturer (Toshiba Semiconductor and Storage), and product status (Active). Substitution is valid when packaging format requirements permit tube delivery instead of tape delivery.

Parameter Comparison

Parameter	TLP785(LF6,F)	TLP785(F)	Match
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)	600% @ 5mA	600% @ 5mA	✓
Turn On / Turn Off Time (Typ)	3µs, 3µs	3µs, 3µs	✓
Rise / Fall Time (Typ)	2µs, 3µs	2µs, 3µs	✓
Input Type	DC	DC	✓
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	✓
Packaging Format	Tape	Tube	Different

Engineering Selection Recommendations

Both TLP785(LF6,F) and TLP785(F) are active production components from Toshiba Semiconductor and Storage with identical electrical and mechanical specifications. Selection between these part numbers depends on packaging and delivery requirements:

Use TLP785(LF6,F) when tape packaging is required for automated assembly processes or when existing procurement specifications mandate tape format delivery.

Use TLP785(F) when tube packaging is acceptable or preferred for manual assembly, kit packaging, or when tube format offers supply or cost advantages.

The TLP785(F) carries RoHS3 compliance and REACH unaffected status as documented in supplier records. Both parts are classified under ECCN EAR99 and HTSUS 8541.49.8000. Moisture sensitivity level is 1 (Unlimited) for both variants, indicating no special moisture handling requirements during storage or assembly.

Frequently Asked Questions (FAQ)

Q: Can TLP785(F) be used as a direct replacement for TLP785(LF6,F) in circuit designs?

A: Yes. Both part numbers are electrically and mechanically identical. The only difference is packaging format (tape versus tube). If your assembly process or design does not specify tape format as a requirement, TLP785(F) is a valid substitute.

Q: What is the difference between tape and tube packaging?

A: Tape packaging (LF6,F designation) supplies components on continuous carrier tape, typically used in automated pick-and-place assembly. Tube packaging (F designation) supplies components in plastic tubes, typically used for manual assembly or kit distribution. Both formats contain the same component with identical specifications.

Q: Are there any compliance or certification differences between these part numbers?

A: Both parts are Active status components. TLP785(F) documentation explicitly lists RoHS3 compliance and REACH unaffected status. Both carry identical ECCN and HTSUS classifications. Moisture sensitivity level is 1 (Unlimited) for both, requiring no special handling.

Q: What are the key electrical parameters that define substitution eligibility?

A: Isolation voltage (5000Vrms), current transfer ratio range (50% to 600% @ 5mA), output voltage maximum (80V), output current per channel (50mA), and operating temperature range (-55°C ~ 110°C) must remain constant. Both parts match all these parameters.

Q: Can I mix tape and tube packaged components in the same production run?

A: This depends on your assembly process. Automated assembly typically requires tape format. Manual assembly or mixed processes may accommodate both formats. Verify with your manufacturing or assembly documentation before mixing packaging formats.

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