Toshiba Semiconductor and Storage TLP4590A(TP5,F

Overview

TLP4590A(TP5,F) from Toshiba Electronic Devices & Storage Corporation is a normally closed (1-Form-B) photo MOSFET relay in a 6-pin DIP through-hole package, featuring 60 V OFF-state voltage, ≤2 mA trigger LED current, and ≤0.6 Ω ON-state resistance. It replaces mechanical relays in HVAC controls, security system I/O isolation, and factory automation signal switching where space and reliability are critical.

For engineers reviewing the TLP4590A(TP5,F) datasheet, TLP4590A(TP5,F) pinout, TLP4590A(TP5,F) application, or TLP4590A(TP5,F) equivalent, this device delivers verified galvanic isolation (5000 Vrms), low on-resistance switching for DC loads up to 1.2 A, and VDE-compliant variants for safety-critical industrial designs.

Technical Context

The TLP4590A(TP5,F) integrates an infrared LED optically coupled to a dual-channel photo MOSFET output stage configured as a single-pole double-throw (SPDT) switch with normally closed (NC) topology. Its internal structure supports three connection modes (A/B/C), enabling flexible load routing without external components.

It operates with input-side LED forward current ≤2 mA for turn-on and maintains <1 µA OFF-state leakage at 60 V, while delivering ≤0.6 Ω channel resistance at 1.2 A DC load - validated across −40°C to +110°C operating temperature range per EN 62368-1 and UL 1577 standards.

Key Specifications

Pinout & Package

Package: 6-pin DIP (through-hole), 7.62 mm pitch, Toshiba package code 11-7A805S, weight 0.39 g (typ.).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLP4590A(TP5,F), TLP3558A offers superior voltage headroom and lower R_ON but demands more LED drive current, while PVG612 trades isolation robustness and certification for SMT manufacturability and reduced board area.

Availability

TLP4590A(TP5,F) is available at Aetrix Electronics and suitable for HVAC controls, security system interfaces, and factory automation I/O modules requiring stable component supply, long-lifecycle support, and certified isolation performance.

Supply support for TLP4590A(TP5,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 discrete semiconductors, power devices, and optoelectronics for industrial, automotive, and consumer applications.

The TLP4590A series belongs to Toshiba's photorelay product line, engineered specifically to replace electromechanical relays in space-constrained, high-reliability DC switching applications with certified galvanic isolation.

FAQ

What is the isolation voltage rating of the TLP4590A(TP5,F)?

The TLP4590A(TP5,F) has a minimum isolation voltage rating of 5000 Vrms (AC, 60 s), certified to UL 1577, cUL CSA Component Acceptance Service No.5A, and VDE EN 60747-5-5 when ordered with the D4 option. This rating applies across the input-to-output barrier and supports reinforced insulation in industrial equipment complying with IEC 61000-4 standards. The TLP4590A(TP5,F) achieves this using internal mold compound and precise leadframe spacing per Toshiba's 11-7A805S package design.

Does the TLP4590A(TP5,F) support normally closed (NC) operation?

Yes, the TLP4590A(TP5,F) is a 1-Form-B (normally closed) photorelay. In its default state (LED unpowered), pins 4 and 5 are conductive; applying ≥2 mA LED current opens that path and closes the path between pins 5 and 6. This NC behavior is intrinsic to its internal photo-MOSFET topology and does not require external circuitry. The TLP4590A(TP5,F) maintains this function across its full −40°C to +110°C operating range.

What are the key differences between TLP4590A(TP5,F) and TLP4590AF variants?

The TLP4590A(TP5,F) uses a 7.62-mm pitch DIP package (Toshiba code 11-7A805S), while the TLP4590AF variant uses an 10.16-mm pitch DIP package (11-7A802S) with larger creepage and clearance distances (8.0 mm vs. 7.0 mm). Both share identical electrical specs including 60 V OFF-state voltage, 1.2 A ON-current, and 5000 Vrms isolation. The TLP4590A(TP5,F) is optimized for standard PCB layouts; TLP4590AF suits higher pollution degree environments per IEC 60664-1.

Can the TLP4590A(TP5,F) switch AC loads?

No, the TLP4590A(TP5,F) is rated only for DC switching applications. Its photo-MOSFET output stage lacks zero-crossing detection or bidirectional blocking capability required for safe AC load control. The datasheet specifies absolute maximum OFF-state voltage as 60 V DC and defines all electrical characteristics (e.g., I_ON, R_ON, t_ON/t_OFF) under DC test conditions. Using TLP4590A(TP5,F) with AC loads may cause premature failure due to reverse-bias stress on the MOSFET body diode.

What packaging format does TLP4590A(TP5,F) ship in?

The TLP4590A(TP5,F) ships in tape-and-reel packaging (1500 pcs per reel), with TP5 indicating the taping option per Toshiba's ordering nomenclature. This format is compatible with automated SMT placement equipment despite the device being a through-hole component - the tape carrier is designed for pick-and-place handling prior to wave soldering. The package code 11-7A805S confirms it is the LF5 (gull-wing formed leads) variant adapted for reel delivery.