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Product Attributes

Introduction

The Toshiba TLP3122A consists of an infrared LED optically coupled to a photoelectric MOSFET in a 4-pin SO6 package. The output current rating of this solid-state relay is higher than that of phototransistor-type optocouplers; therefore, it is suitable for high-current switching control. Features include:

• Halogen-free
• Operating temperature range: up to 110°C
• Normally open (1-Form-A)
• Output voltage in the off state: at least 60 V
• Trigger LED current: up to 3 mA
• On-state current: up to 1.4 A
• On-state resistance: up to 0.25 Ω
• Isolation voltage: at least 3750 Vrms
• Safety standards: UL certification (UL 1577, File No. E67349), cUL certification (CSA Component Recognition Service 5A, File No. E67349), UL certification (UL 508, File No. E499232), and VDE approval (EN 60747-5-5)

Mechanical parameters:

• Creepage distance: at least 5.0 mm
• Clearance distance: at least 5.0 mm
• Internal isolation thickness: at least 0.2 mm

Absolute maximum ratings (Ta = 25°C unless otherwise specified):

• Input forward current: 50 mA
• Input forward current derating: -0.5 mA/°C
• Input forward current (pulse): 1 A (100 μs pulse, 100 pps)
• Input reverse voltage: 6 V
• Input power dissipation: 50 mW
• Input power dissipation derating: -0.5 mW/°C
• Junction temperature: 125°C
• Output voltage in the detector off state: 60 V
• On-state current: 1.4 A
• On-state current derating: -14.0 mA/°C
• On-state current (pulse): 4.2 A (t = 100 ms, duty cycle = 1/10)
• Output power dissipation: 400 mW
• Output power dissipation derating: -4.0 mW/°C
• Storage temperature: -55 to 125°C
• Operating temperature: -40 to 110°C
• Pin soldering temperature: 260°C (10 seconds)
• Isolation voltage: 3750 Vrms

Recommended operating conditions (Ta = 25°C unless otherwise specified):

• Power supply voltage: up to 48 V
• Input forward current: 5 to 25 mA
• On-state current: up to 1.4 A
• Operating temperature: -40 to 100°C

Absolute maximum ratings (UL certification: UL 508) (Ta = 25°C unless otherwise specified):

• Input forward current: 50 mA
• Input forward current derating: -0.5 mA/°C
• Input forward current (pulse): 1 A (100 μs pulse, 100 pps)
• Input reverse voltage: 6 V
• Input power dissipation: 50 mW
• Input power dissipation derating: -0.5 mW/°C
• Junction temperature: 105°C
• Output voltage in the detector off state: 60 V
• On-state current: 1.4 A
• On-state current derating: -14.0 mA/°C
• On-state current (pulse): 4.2 A (t = 100 ms, duty cycle = 1/10)
• Output power dissipation: 400 mW
• Output power dissipation derating: -4.0 mW/°C
• Storage temperature: -55 to 125°C
• Operating temperature: -40 to 85°C
• Pin soldering temperature: 260°C (10 seconds)
• Isolation voltage: 3750 Vrms

Recommended operating conditions (UL certification: UL 508) (Ta = 60°C unless otherwise specified):

• Power supply voltage: up to 48 V
• Input forward current: 5 to 32.5 mA
• On-state current: up to 0.9 A
• Operating temperature: -20 to 85°C

Applications

• Measuring instruments
• Safety systems
• Automatic test equipment (ATE)
• Factory automation (FA)
• Battery management systems (BMS) (non-automotive)
• Programmable logic controllers (PLC)
• Mechanical relay replacements