TLP626(MAT-LF2,F) Equivalent & Substitute Parts

Part Overview

The TLP626(MAT-LF2,F) is a through-hole optoisolator with transistor output manufactured by Toshiba Semiconductor and Storage. This component provides 5000Vrms isolation in a 4-DIP package and is designed for AC/DC input applications requiring galvanic isolation with transistor-based switching output.

The TLP626(MAT-LF2,F) is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing system maintenance, repair, and new design implementations where this isolation topology is required.

Substiute Parts

TLP626(MAT-LF2,F)

Toshiba Semiconductor and StorageIn Stock: 849TLP626(MAT-LF2,F) Datasheet

Current PartRFQ

TLP620M(LF1,E

Toshiba Semiconductor and StorageIn Stock: 820TLP620M(LF1,E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLP626(MAT-LF2,F) is determined by the following critical parameters:

Isolation Voltage: Both the main part and substitute must maintain 5000Vrms isolation rating to preserve circuit safety and regulatory compliance.

Output Configuration: Both parts must feature transistor output with single-channel topology to ensure functional equivalence in switching applications.

Input Compatibility: Both parts must accept AC and DC input signals to maintain circuit flexibility.

Output Current Rating: Both parts must support 50mA output current per channel to meet load requirements.

Package Consideration: The main part uses through-hole 4-DIP mounting. Substitute parts may use alternative mounting technologies (surface mount) provided all electrical parameters remain compatible.

Product Status: Active substitute parts are preferred over obsolete components to ensure long-term availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

The TLP620M(LF1,E) is an active substitute for the obsolete TLP626(MAT-LF2,F). Both components share identical isolation voltage (5000Vrms), single-channel transistor output topology, and 50mA output current rating. Both accept AC and DC input signals and carry the same export classification (EAR99) and tariff code (8541.49.8000).

The TLP620M(LF1,E) offers enhanced electrical performance characteristics: maximum output voltage of 80V versus 55V, lower saturation voltage (300mV versus 400mV), and extended operating temperature range (-55°C to 125°C versus -55°C to 100°C). The substitute part uses surface-mount packaging (4-SMD) rather than through-hole (4-DIP), requiring PCB layout and assembly process modifications.

Selection of the TLP620M(LF1,E) is supported by its active product status, ensuring availability and supply chain reliability for current and future applications.

Frequently Asked Questions (FAQ)

Q: Can the TLP620M(LF1,E) directly replace the TLP626(MAT-LF2,F) in existing through-hole PCB designs?

A: Direct socket replacement is not possible due to different mounting technologies. The TLP626(MAT-LF2,F) uses through-hole 4-DIP packaging, while the TLP620M(LF1,E) uses surface-mount 4-SMD packaging. PCB redesign and assembly process changes are required.

Q: Are the isolation voltage ratings identical between these parts?

A: Yes. Both the TLP626(MAT-LF2,F) and TLP620M(LF1,E) provide 5000Vrms isolation voltage, meeting identical safety and regulatory requirements.

Q: What is the significance of the higher maximum output voltage in the TLP620M(LF1,E)?

A: The TLP620M(LF1,E) supports maximum output voltage of 80V compared to 55V in the TLP626(MAT-LF2,F). This provides greater flexibility for applications requiring higher switching voltages, though both parts maintain the same 50mA output current rating.

Q: Do both parts accept the same input signal types?

A: Yes. Both the TLP626(MAT-LF2,F) and TLP620M(LF1,E) accept AC and DC input signals, maintaining functional equivalence in input signal conditioning.

Q: What is the impact of the lower saturation voltage in the TLP620M(LF1,E)?

A: The TLP620M(LF1,E) exhibits lower Vce saturation (300mV maximum versus 400mV), resulting in reduced power dissipation during transistor saturation and improved switching efficiency.

Q: Is the extended temperature range of the TLP620M(LF1,E) significant for substitution?

A: The TLP620M(LF1,E) operates across -55°C to 125°C, compared to -55°C to 100°C for the TLP626(MAT-LF2,F). This extended range provides additional operational margin for high-temperature environments and is not a limiting factor for substitution in applications within the original part's temperature specification.

Q: Are export classifications identical for both parts?

A: Yes. Both the TLP626(MAT-LF2,F) and TLP620M(LF1,E) carry ECCN classification EAR99 and HTSUS code 8541.49.8000, maintaining identical regulatory and compliance status.