TLP620-2(YASK,F) Equivalent & Substitute Parts

Part Overview

The TLP620-2(YASK,F) is a 2-channel optoisolator with transistor output manufactured by Toshiba Semiconductor and Storage. This component provides 5000Vrms isolation and is designed for AC/DC input applications requiring galvanic isolation in industrial and consumer electronics. The part is classified as obsolete, making identification of active equivalent components essential for ongoing design support, production continuity, and long-term supply chain management.

Substiute Parts

TLP620-2(YASK,F)

Toshiba Semiconductor and StorageIn Stock: 1121TLP620-2(YASK,F) Datasheet

Current PartRFQ

TLP620M(E

Toshiba Semiconductor and StorageIn Stock: 978TLP620M(E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLP620-2(YASK,F) is determined by the following critical parameters:

Isolation Voltage: The 5000Vrms isolation rating is a primary substitution criterion. Substitute parts must maintain this isolation specification to preserve circuit safety and regulatory compliance.

Channel Configuration: The main part provides 2 channels in a single package. Substitute parts with different channel counts require circuit redesign and board layout modifications.

Output Type and Current Rating: Transistor output with 50mA per-channel current capacity defines the load-switching capability. Substitutes must support equivalent output current specifications.

Package Form Factor: The 8-DIP through-hole package establishes the physical footprint and pin configuration. Package changes require PCB redesign.

Operating Temperature Range: The -55°C to 100°C range specifies environmental operating limits. Substitutes with extended temperature ranges provide additional design margin.

Current Transfer Ratio: The 50% to 600% CTR range at 5mA input current defines the optical coupling efficiency and input drive requirements.

The TLP620M(E) is identified as a manufacturer-recommended substitute. However, this substitute exhibits a critical architectural difference: it is a 1-channel device in a 4-DIP package, whereas the main part is a 2-channel device in an 8-DIP package. This difference necessitates circuit redesign and cannot be considered a direct pin-for-pin replacement.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The TLP620-2(YASK,F) is classified as obsolete. The TLP620M(E) is an active product from the same manufacturer, ensuring ongoing availability and manufacturing support.

Substitution Feasibility: While the TLP620M(E) shares critical electrical parameters with the main part—including 5000Vrms isolation, identical current transfer ratio specifications, and matching switching characteristics—it cannot function as a direct replacement due to architectural differences.

Channel Configuration Impact: The main part integrates 2 channels within a single 8-DIP package. The substitute provides 1 channel in a 4-DIP package. Applications requiring dual-channel isolation must either employ two TLP620M(E) devices or identify alternative dual-channel optoisolators.

Electrical Performance: The substitute demonstrates improved electrical characteristics in specific parameters: maximum output voltage increases from 55V to 80V, Vce saturation voltage decreases from 400mV to 300mV, and operating temperature range extends to 125°C. These improvements provide enhanced design margin in new applications.

Compliance and Certification: Both parts carry identical ECCN (EAR99) and HTSUS (8541.49.8000) classifications, indicating equivalent regulatory treatment for export and tariff purposes.

Frequently Asked Questions (FAQ)

Q: Can the TLP620M(E) be used as a direct pin-for-pin replacement for the TLP620-2(YASK,F)?

A: No. The TLP620M(E) is a 1-channel device in a 4-DIP package, while the TLP620-2(YASK,F) is a 2-channel device in an 8-DIP package. Pin configurations and channel architecture differ fundamentally, requiring circuit redesign.

Q: What are the key electrical parameters that remain compatible between these parts?

A: Isolation voltage (5000Vrms), current transfer ratio specifications (50% to 600% @ 5mA), switching timing (3µs on/off, 2µs/3µs rise/fall), output current per channel (50mA), and input type (AC/DC) are identical between the main part and substitute.

Q: Does the TLP620M(E) have better performance than the TLP620-2(YASK,F)?

A: The TLP620M(E) exhibits improvements in specific parameters: maximum output voltage (80V vs. 55V), Vce saturation voltage (300mV vs. 400mV), and operating temperature range (-55°C to 125°C vs. -55°C to 100°C). These represent design enhancements in the active product line.

Q: How should I handle the 2-channel requirement if I need to replace the TLP620-2(YASK,F)?

A: Applications requiring dual-channel isolation can implement two TLP620M(E) devices on the PCB. This approach requires board layout modification but maintains electrical compatibility and leverages an active product with ongoing manufacturer support.

Q: Are there regulatory or compliance differences between these parts?

A: Both parts carry identical ECCN and HTSUS classifications. No regulatory or compliance differences exist between the main part and the substitute.

Q: What is the significance of the forward voltage difference (1.15V vs. 1.25V)?

A: The 0.10V difference in typical forward voltage is minor and falls within normal component tolerance ranges. Input drive circuit design should accommodate the substitute's forward voltage specification to ensure reliable LED current delivery.

Q: Why is the TLP620-2(YASK,F) classified as obsolete?

A: Obsolescence reflects the manufacturer's discontinuation of this product line. The TLP620M(E) represents the active equivalent in Toshiba's current optoisolator portfolio, ensuring long-term supply chain continuity for new designs and production support.