Toshiba Launches Small Photorelay Suitable for High-Frequency Signal Switches in Semiconductor Testers
October 17, 2023
Toshiba Electronic Devices & Storage Corporation
KAWASAKI, Japan—Toshiba Electronic Devices & Storage Corporation ("Toshiba") has launched "TLP3475W," a photorelay in a small, thin WSON4 package. It reduces insertion loss and suppresses power attenuation in high-frequency signals [1] and is suitable for the pin electronics of semiconductor testers, which use a large number of relays and require high-speed signaling. Volume shipments start today.
Toshiba’s optimized package designs reduces parasitic capacitance and inductance in the new photorelay. This reduces insertion loss and improves the transmission characteristic of high-frequency signals to 20GHz (typ.) [2], about 1.5 times lower [2] than Toshiba’s current product, TLP3475S.
TLP3475W uses a small, thin WSON4 package that is only 0.8mm (typ.) thick, making it the smallest [3] photorelay in the industry to realize improved high-frequency signal transmission characteristics. It is 40% lower in height than Toshiba’s ultra-small S-VSON4T package, allowing more products to be mounted on the same circuit board, and will contribute to improved measuring efficiency.
Toshiba will continue to expand its product line-up to support semiconductor testers that deliver higher speeds and greater functionality.
S21 insertion loss characteristics
Applications
- Semiconductor testers (high-speed memory testers, high-speed logic testers, etc.)
- Probe cards
- Measuring equipment
Features
- Industry’s smallest [3] WSON4 package: 1.45mm×2.0mm (typ.), t=0.8mm (typ.)
- Improving to pass the high-frequency signals: f=20GHz (typ.) @Insertion loss(S21) = -3dB
- Normally open function (1-Form-A)
Notes:
[1] When the frequency band is in the range of several hundreds of megahertz to several tens of gigahertz.
[2] The frequency band where the power attenuation ratio (insertion loss) when the signal passes through the output MOSFET is -3dB.
[3] For photorelays. As of October 2023, Toshiba survey.
Main Specifications
(Unless otherwise specified, Ta = 25°C)
| Part Number | TLP3475W | |||
|---|---|---|---|---|
| Package | Name | WSON4 | ||
| Size (mm) | 1.45×2.0 (typ.), t=0.8 (typ.) | |||
| Absolute maximum ratings | OFF-state output terminal voltage VOFF (V) | 60 | ||
| ON-state current ION (A) | 0.4 | |||
| ON-state current (pulsed) IONP (A) | 1.2 | |||
| Operating temperature Topr (°C) | -40 to 110 | |||
| Coupled electrical characteristics | Trigger LED current IFT (mA) | max | 3.0 | |
| ON-state resistance RON (Ω) | typ. | 1.1 | ||
| max | 1.5 | |||
| Electrical characteristics | Output capacitance COFF (pF) | max | 20 | |
| Switching characteristics | Turn-on time tON (ms) | @RL = 200Ω, VDD = 20V, IF = 5mA |
max | 0.25 |
| Turn-off time tOFF (ms) | 0.2 | |||
| Isolation characteristics | Isolation voltage BVS (Vrms) | min | 300 | |
| Sample Check & Availability |  |
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Follow the link below for more on the new product.
Follow the link below for more on Toshiba’s photorelays.
To check availability of the new products at online distributors, please visit:
TLP3475W
Customer Inquiries
Optoelectronic Device Sales & Marketing Dept.
Tel: +81-44-548-2218
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* Information in this document, including product prices and specifications, content of services and contact information, is current on the date of the announcement but is subject to change without prior notice.