Toshiba’s New Photorelays Contribute to Equipment Downsizing by Reducing Mounting Density

TOKYO— Toshiba Electronic Devices & Storage Corporation (“Toshiba”) has launched three photorelays: “TLP3407SRA,” “TLP3475SRHA” and “TLP3412SRHA,” that are the industry-smallest[1] voltage driven photorelays with an extended operating temperature rating of 125°C.

Raising the maximum operating temperature rating from 110°C to 125°C allows the photorelays to be mounted in high temperature areas, and makes it easier to secure required temperature design margins for equipment. The S-VSON4T package has the industry-smallest[1] mounting area of 2.9mm² .This will contribute to reducing PCB size or to increasing the number of photorelays in an existing layout in applications such as semiconductor testers, probe cards and other devices.

Semiconductor testers (memory, SoC and LSI, etc.)
Probe cards
Burn-in equipment
Measuring instruments (oscilloscope, data logger, etc.)

S-VSON4T, the industry’s first[1] packaging with a minimal mounting area and maximum operating temperature of 125°C: Mounting area 2.9mm2 (typ.)
Low input power consumption drive: 3.3mW[2] (max) @VIN=3.3V（TLP3407SRA）

Part number		TLP3407SRA	TLP3475SRHA	TLP3412SRHA
Package	Name	S-VSON4T
	Size typ.　(mm)	2.0×1.45
	Height typ.(mm)	1.3
Recommended operating conditions	Applied input forward voltage VIN　typ. (V)	3.3	3.3	3.3
Built-in resistance typ. (Ω)		4000	600	600
Absolute maximum ratings	OFF-state output terminal voltage VOFF (V)	60	60	60
	ON-state current　ION (A)	1	0.4	0.4
	ON-state current (pulsed) IONP (A)	3	1.2	1.2
	Operating temperature Topr (℃)	-40 to 125
Coupled electrical characteristics	Limited LED current　 ILIM(LED) max (mA) (@VIN)	1 (@3.3V)	-	-
	Trigger LED current IFT max (mA)	0.2	2	2
	Operating voltage 　VFON max (V)	3	3	3
	ON-state resistance RON max (Ω)	0.3	1.5	1.5
Electrical characteristics	Output capacitance COFF typ. (pF)	80	12	20 (max)
Electrical characteristics	OFF-state current IOFF max (nA) （@VOFF）	1 (@50V)	1 (@50V)	1 (@50V)
Switching characteristics	Turn-on time tON max (ms)	20	0.5	0.5
Switching characteristics	Turn-off time tOFF max (ms)	1	0.2	0.2
Isolation characteristic	Isolation voltage BVS min (Vrms)	500	500	500

Applications

Features

Main Specifications