TLP759(IGM-LF5,J,F) Equivalent & Substitute Parts

Part Overview

The TLP759(IGM-LF5,J,F) is an optoisolator transistor manufactured by Toshiba Semiconductor and Storage, designed for high-voltage isolation applications. This component features a single channel with 5000Vrms isolation rating and transistor output with base connection. The device is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

TLP759(IGM-LF5,J,F

Toshiba Semiconductor and StorageIn Stock: 1133TLP759(IGM-LF5,J,F Datasheet

Current PartRFQ

TLP2719(E

Toshiba Semiconductor and StorageIn Stock: 1340TLP2719(E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLP759(IGM-LF5,J,F) is determined by the following critical parameters that must be maintained or exceeded:

Isolation Voltage: The substitute must provide 5000Vrms isolation capability to maintain electrical safety and system integrity.

Number of Channels: Single-channel configuration is required to match the original design topology.

Output Current Capability: The substitute must support 8mA output current per channel to ensure proper signal transmission.

Input/Output Type Compatibility: While the original device features transistor output with base connection, functionally equivalent alternatives may employ open collector output topology, provided the isolation voltage, channel count, and current ratings remain compatible.

Voltage Ratings: Forward voltage (Vf) and maximum DC forward current (If) specifications must align with circuit design parameters.

Operating Temperature Range: The substitute must support the required temperature envelope for the application.

Mounting and Packaging: Surface mount configuration with compatible package footprint is required for board-level integration.

The TLP2719(E) qualifies as a manufacturer-recommended substitute based on these criteria.

Parameter Comparison

Engineering Selection Recommendations

The TLP2719(E) is the manufacturer-recommended substitute for the obsolete TLP759(IGM-LF5,J,F). Both components share identical isolation voltage (5000Vrms), channel count (1), output current capability (8mA), and forward current specifications (25mA maximum). Both devices carry the same ECCN (EAR99) and HTSUS classification, ensuring regulatory compliance equivalence.

The primary distinction between these components is the output stage topology: the original TLP759 employs transistor output with base connection, while the TLP2719(E) uses open collector output. This functional difference does not preclude substitution in applications where the open collector configuration is compatible with the receiving circuit topology.

The TLP2719(E) operates across a narrower temperature range (-40°C to 100°C) compared to the original device (-55°C to 100°C). Applications requiring operation below -40°C must evaluate this specification against system requirements.

The TLP2719(E) is currently in active production status, ensuring long-term availability and supply chain continuity compared to the obsolete TLP759(IGM-LF5,J,F).

Frequently Asked Questions (FAQ)

Q: Can the TLP2719(E) directly replace the TLP759(IGM-LF5,J,F) in existing designs?

A: The TLP2719(E) provides functional equivalence in isolation voltage, channel count, and current ratings. However, the output stage topology differs (open collector versus transistor with base). Circuit-level compatibility depends on whether the receiving circuit can accommodate open collector output. PCB footprint differences between 8-SMD and 6-SOIC packages require layout modification.

Q: What is the significance of the operating temperature range difference?

A: The TLP759(IGM-LF5,J,F) operates from -55°C to 100°C, while the TLP2719(E) operates from -40°C to 100°C. Applications requiring operation below -40°C cannot use the TLP2719(E) as a substitute without additional thermal management or alternative component selection.

Q: Are there package compatibility considerations?

A: Yes. The TLP759(IGM-LF5,J,F) uses an 8-SMD Gull Wing package, while the TLP2719(E) uses a 6-SOIC package. These packages have different footprints and pin configurations. PCB redesign is required for substitution.

Q: Do both components meet the same regulatory classifications?

A: Yes. Both the TLP759(IGM-LF5,J,F) and TLP2719(E) carry identical ECCN (EAR99) and HTSUS (8541.49.8000) classifications, ensuring equivalent regulatory treatment.

Q: Why is the TLP759(IGM-LF5,J,F) classified as obsolete?

A: Obsolete status indicates the component is no longer manufactured by Toshiba Semiconductor and Storage. The TLP2719(E) represents the active product line continuation with equivalent electrical specifications and enhanced availability.

Q: What is the difference between transistor with base output and open collector output?

A: Transistor with base output provides direct access to the transistor base terminal, allowing external base current control. Open collector output provides only the collector and emitter terminals, with the base internally connected. Open collector output is simpler to interface but offers less flexibility in output stage configuration.

Q: Are the forward voltage specifications compatible?

A: Yes. The TLP759(IGM-LF5,J,F) specifies 1.65V typical forward voltage, while the TLP2719(E) specifies 1.6V typical forward voltage. This 0.05V difference is within normal component tolerance and does not affect circuit compatibility.