Toshiba Semiconductor and Storage TLP3107(TP,F

Overview

TLP3107(TP,F) from Toshiba Electronic Devices & Storage Corporation is a normally-open photorelay IC comprising an infrared LED optically coupled to a photo-MOSFET output stage in a 2.54 mm pitch SOP-6 package. It delivers 3.3 A max ON-state current (A-connection), 60 mΩ max ON-resistance, and 60 V min OFF-state voltage - enabling solid-state replacement of mechanical relays in AC/DC power line switching applications up to 48 V.

For engineers reviewing the TLP3107(TP,F) datasheet, TLP3107(TP,F) pinout, TLP3107(TP,F) application, or TLP3107(TP,F) equivalent, key selection criteria include verified isolation voltage (1500 Vrms), low trigger LED current (≤3 mA), thermal derating behavior, and dual-terminal configuration compatibility with industrial control load interfaces.

Technical Context

The TLP3107(TP,F) implements optical coupling between input and output stages using GaAs infrared LED and silicon MOSFET die, with internal bonding that electrically shorts pins 1–3 (anode/cathode/N.C.) and pins 4–6 (drain/source/drain) to form two isolated terminals. Its A-connection topology supports unidirectional load switching with defined current path and thermal dissipation limits.

Switching performance is characterized by typical turn-on time of 0.6 ms and turn-off time of 0.3 ms at 20 V supply and 5 mA LED drive, with guaranteed isolation resistance ≥5×10¹⁰ Ω and input-output capacitance ≤0.8 pF - critical for noise-sensitive measurement and security system signal integrity.

Key Specifications

Pinout & Package

Package: 2.54 mm pitch SOP-6 (Toshiba designation 11-7C1S), surface-mount, 0.13 g typical weight. Pins 1–3 are internally shorted as input terminal; pins 4–6 are internally shorted as output terminal - forming a two-terminal device with optical isolation barrier.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar photorelay applications.

Compared with PVG612A and PS8501-AX, the TLP3107(TP,F) offers lowest ON-resistance (60 mΩ) and minimal LED drive (3 mA max) in a compact SOP-6 with internal pin shorting - optimizing thermal performance and interface simplicity for 24–48 V industrial control loads.

Availability

TLP3107(TP,F) is available at Aetrix Electronics and suitable for factory automation, security systems, and measuring instruments requiring stable component supply with long-term lifecycle support and traceable sourcing.

Supply support for TLP3107(TP,F) includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Toshiba Electronic Devices & Storage Corporation designs and manufactures high-reliability semiconductor components, with global manufacturing and quality certifications supporting automotive, industrial, and consumer applications.

The TLP3107(TP,F) belongs to Toshiba's photorelay product line, engineered specifically for solid-state replacement of mechanical relays in industrial control, instrumentation, and security systems where reliability, low drive current, and compact isolation are critical.

FAQ

What is the maximum continuous ON-state current rating for the TLP3107(TP,F)?

The TLP3107(TP,F) supports a maximum continuous ON-state current of 3.3 A in A-connection configuration at 25°C ambient, derating linearly to zero at 125°C junction temperature. This rating applies only when used within recommended operating conditions - including ≤48 V supply and proper PCB copper area for thermal dissipation. The TLP3107(TP,F) must not exceed its absolute maximum ratings under any condition.

Does the TLP3107(TP,F) require an external current-limiting resistor for the input LED?

Yes, the TLP3107(TP,F) requires an external series resistor to limit forward current to ≤25 mA (absolute max) and maintain typical operation at ≤3 mA trigger level. For example, with a 3.3 V MCU GPIO, a 1 kΩ resistor yields ~2.3 mA drive - safely within the TLP3107(TP,F)'s 3 mA max trigger specification and ensuring long-term LED reliability. The TLP3107(TP,F) does not integrate current regulation.

Can the TLP3107(TP,F) switch AC loads directly?

No, the TLP3107(TP,F) is a unidirectional (DC-only) photorelay optimized for DC load switching up to 48 V. Its MOSFET output lacks body diode symmetry and zero-crossing detection, making it unsuitable for direct AC mains switching. For AC applications, the TLP3107(TP,F) may be used in DC control paths (e.g., driving triac gate circuits), but never as the main AC power switch. Always verify load polarity and waveform with the TLP3107(TP,F) datasheet.

What safety certifications does the TLP3107(TP,F) hold?

The TLP3107(TP,F) is UL-recognized under UL 1577 (File No. E67349) and cUL-recognized per CSA Component Acceptance Service (File No. E67349). These certifications validate its 1500 Vrms isolation rating and construction for use in industrial equipment. It is not certified to IEC 60747-5-5 or VDE 0884-10, so designers must confirm regulatory alignment for end-equipment standards before final qualification. The TLP3107(TP,F) carries no automotive AEC-Q200 qualification.

How is thermal performance affected by the TLP3107(TP,F)'s internal pin shorting?

The TLP3107(TP,F)'s internal shorting of pins 1–3 and 4–6 creates two robust thermal nodes - enhancing heat spreading across the SOP-6 leads and reducing localized junction temperature rise. At 3.3 A, this design lowers thermal resistance by ~15% compared to discrete-pin equivalents, allowing sustained operation up to 65°C ambient without forced cooling. Thermal derating curves in the TLP3107(TP,F) datasheet must be followed for precise lifetime estimation.