What is the Toshiba TLP176G(V4-TPR.F)?

It is a Toshiba photorelay (solid-state relay) with a photo-MOSFET output, providing a 1-Form-A (SPST-NO) contact in a 4-pin SOP surface-mount package. The V4 suffix denotes the VDE-approved variant and TPR.F indicates tape-and-reel packaging.

What are the key electrical ratings of the TLP176G?

The TLP176G is rated for a peak off-state output voltage of 350 V (min), on-state current of 120 mA (max), on-state resistance of 35 u03a9 (max), a trigger LED current of 3 mA (max), and an isolation voltage of 1500 Vrms (min, AC 60 s).

What does the V4 in TLP176G(V4-TPR.F) mean?

Per the Toshiba datasheet, the V4 option designates the VDE-approved version certified to EN 60747-5-5. TPR.F refers to embossed tape-and-reel packaging.

Is the TLP176G still in production?

No. The TLP176G has reached end-of-life (EOL) status with little to no authorized-distributor availability; Toshiba lists the TLP172GM as a recommended successor. Pacific Component Xchange sources it on an RFQ basis for legacy and replacement needs.

What are typical applications for the TLP176G?

It was widely used for hook and dial-pulse relays in modems and fax machines, PBX and telecom line interfaces, set-top boxes, and measurement equipment, as well as general mechanical-relay replacement.

How do I buy the TLP176G(V4-TPR.F)?

Because this part is obsolete, submit a Request for Quote (RFQ) to Pacific Component Xchange. We will confirm current availability, lead time, and authenticity, and can suggest qualified alternatives if needed.

TLP176G(V4-TPR.F) – Photorelay (MOSFET Output) – Toshiba

The Toshiba TLP176G(V4-TPR.F) is a 1-Form-A (SPST-NO) photorelay with a high-voltage photo-MOSFET output, rated 350 V off-state / 120 mA on-state in a surface-mount 4-pin SOP package. This VDE-approved, tape-and-reel variant is an obsolete, hard-to-find part available for RFQ.

Brand:Toshiba

SKU: TLP176G(V4-TPR.F) Categories: Electronic Parts, RFQ

Please contact us or add to quote for current pricing and availability.

The Toshiba TLP176G(V4-TPR.F) is a photorelay (solid-state relay) with a photo-MOSFET output, consisting of an infrared emitting diode (IRED) optically coupled to a high-voltage photo-MOSFET in a compact 4-pin SOP (2.54SOP4) surface-mount package. The device provides a normally-open 1-Form-A (SPST-NO) contact and is designed as a long-life, bounce-free replacement for mechanical relays. The V4 option designates the VDE-approved (EN 60747-5-5) variant, while TPR.F indicates embossed tape-and-reel packaging for automated assembly.

Originally developed for telecom line-side switching, the TLP176G’s high off-state voltage and low on-resistance made it a standard choice for hook relays and dial-pulse relays in modems, fax machines, and PBX equipment.

Key Features

Output type: high-voltage photo-MOSFET, 1-Form-A (SPST-NO) contact
Peak off-state output voltage: 350 V (min)
On-state current: 120 mA (max)
On-state resistance R_ON: 35 Ω (max), 22 Ω typ.
Trigger LED current I_FT: 3 mA (max), 1 mA typ.
Isolation voltage BV_S: 1500 Vrms (min, AC 60 s)
Turn-on / turn-off time: 1 ms (max), 0.3 / 0.1 ms typ.
Operating temperature range: -40 °C to +85 °C
Safety approvals: UL 1577 (File No. E67349), cUL (CSA), and VDE EN 60747-5-5 (V4 option)
Package: 4-pin SOP (2.54SOP4), surface-mount

Applications

Modem and fax hook / dial-pulse relays
PBX and telecom line interface switching
Set-top box (STB) signal switching
Measurement and test equipment
General-purpose mechanical relay replacement

Why Source TLP176G(V4-TPR.F) from Pacific Component Xchange

The TLP176G is an obsolete / end-of-life Toshiba photorelay with little to no authorized-distributor stock, making it difficult to procure through standard channels. Pacific Component Xchange specializes in hard-to-find and obsolete power-management ICs and optocouplers, helping engineers and buyers keep legacy designs in production. We provide authenticity verification on incoming inventory, flexible quantities, and worldwide shipping. If your design still requires the TLP176G(V4-TPR.F) – or you need a qualified cross to the recommended successor – request a quote (RFQ) today and our sourcing team will respond with current availability and lead time.

Additional Information

Manufacturer	Toshiba Electronic Devices & Storage Corporation
Component Type	Photorelay (MOSFET Output)
Output Type	Photo-MOSFET, 1-Form-A (SPST-NO)
Channels	1
Off-State Output Voltage (VOFF)	350 V (min)
On-State Current (ION)	120 mA (max)
On-State Resistance (RON)	35 Ω max (22 Ω typ)
Trigger LED Current (IFT)	3 mA max (1 mA typ)
Isolation Voltage (BVS)	1500 Vrms (min, AC 60 s)
Turn-On / Turn-Off Time	1 ms max (0.3 / 0.1 ms typ)
Operating Temperature	-40 °C to +85 °C
Safety Approvals	UL 1577 (File No. E67349), cUL (CSA), VDE EN 60747-5-5 (V4 option)
Package	4-pin SOP (2.54SOP4), surface mount
Packaging	Tape and Reel (TPR)
Part Status	Obsolete / End-of-Life
Availability	Available