TLP781(YH-TP6,F) Equivalent & Substitute Parts

Part Overview

The TLP781(YH-TP6,F) is a single-channel optoisolator with transistor output manufactured by Toshiba Semiconductor and Storage. This component provides 5000Vrms isolation and is designed for DC input applications requiring galvanic isolation in 4-SMD surface mount packaging. The part is currently classified as obsolete, making identification of active equivalent alternatives essential for ongoing design support and procurement continuity.

Substiute Parts

TLP781(YH-TP6,F)

Toshiba Semiconductor and StorageIn Stock: 923TLP781(YH-TP6,F) Datasheet

Current PartRFQ

TLP785(YH-TP6,F

Toshiba Semiconductor and StorageIn Stock: 16733TLP785(YH-TP6,F Datasheet

DirectRFQ

TLP785(D4YH-T6,F

Toshiba Semiconductor and StorageIn Stock: 4802TLP785(D4YH-T6,F Datasheet

Parametric EquivalentRFQ

TLP785F(YH-TP7,F

Toshiba Semiconductor and StorageIn Stock: 830TLP785F(YH-TP7,F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLP781(YH-TP6,F) is determined by strict equivalence across the following critical parameters:

• Single channel configuration
• 5000Vrms isolation voltage
• Transistor output topology
• Current transfer ratio range: 75% to 150% @ 5mA
• Switching characteristics: 3µs turn-on/off time, 2µs/3µs rise/fall time
• DC input type
• Maximum output voltage: 80V
• Maximum output current: 50mA per channel
• Forward voltage: 1.15V typical
• Maximum forward current: 60mA
• Vce saturation: 400mV maximum
• Operating temperature range: -55°C to 110°C
• Surface mount 4-SMD gull wing package

All substitute parts must maintain identical electrical performance across these parameters to ensure functional compatibility without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts—TLP785(YH-TP6,F), TLP785(D4YH-T6,F), and TLP785F(YH-TP7,F)—maintain complete electrical and mechanical equivalence to the obsolete TLP781(YH-TP6,F) across all specified parameters.

TLP785(YH-TP6,F) and TLP785F(YH-TP7,F) are recommended as primary alternatives due to active product status and standard packaging configurations. Both parts carry MSL Level 1 (Unlimited) moisture sensitivity rating, matching the original specification.

TLP785(D4YH-T6,F) is available in Tape & Reel packaging and carries RoHS Compliant certification with Not Applicable MSL designation, suitable for high-volume manufacturing environments requiring automated handling and environmental compliance documentation.

Selection between these three active alternatives should be based on packaging requirements (standard tube versus tape & reel), inventory availability, and compliance documentation needs for the target application.

Frequently Asked Questions (FAQ)

Q: Are the TLP785 series parts direct replacements for the TLP781(YH-TP6,F)?

A: Yes. The TLP785(YH-TP6,F), TLP785(D4YH-T6,F), and TLP785F(YH-TP7,F) are parametric equivalents with identical electrical specifications, isolation voltage, switching characteristics, and 4-SMD gull wing package configuration. No circuit modifications are required.

Q: What is the difference between TLP785(YH-TP6,F) and TLP785(D4YH-T6,F)?

A: The primary difference is packaging format. TLP785(YH-TP6,F) is supplied in standard packaging, while TLP785(D4YH-T6,F) is supplied in Tape & Reel (TR) format. Electrically and mechanically, both parts are identical. TLP785(D4YH-T6,F) also carries RoHS Compliant certification.

Q: Can I use TLP785F(YH-TP7,F) as a substitute?

A: Yes. TLP785F(YH-TP7,F) maintains all critical electrical parameters and package specifications. The part is active and carries MSL Level 1 (Unlimited) rating, consistent with the original TLP781(YH-TP6,F).

Q: What are the key parameters that determine substitutability?

A: Substitutability is determined by: single-channel configuration, 5000Vrms isolation, 75-150% current transfer ratio at 5mA, 3µs switching time, 80V maximum output voltage, 50mA output current, 4-SMD gull wing package, and -55°C to 110°C operating temperature range. All substitute parts match these specifications exactly.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel (TR) packaging in TLP785(D4YH-T6,F) is a handling and delivery format only. Electrical and mechanical specifications remain identical to standard packaging variants.

Q: Are there any compliance differences between the substitute parts?

A: TLP785(D4YH-T6,F) carries explicit RoHS Compliant certification. TLP785(YH-TP6,F) and TLP785F(YH-TP7,F) carry standard MSL Level 1 (Unlimited) ratings. All parts share identical ECCN (EAR99) and HTSUS (8541.49.8000) classifications.