[Notification of CAD Data Download Issue]
We regret to inform you that we are currently experiencing issues with downloading CAD data for some products.
We are investigating the cause of this problem. We apologize for any inconvenience this may cause and appreciate your understanding.
Business > Industrial Devices > Automation Controls Top > Components & Devices > Relays / Couplers > PhotoMOS > PhotoMOS Technical Terminology
Term | Symbol | Description | |
---|---|---|---|
Input | LED forward current | IF | Current that flows between the input terminals when the input diode is forward biased. |
LED reverse voltage | VR | Reverse breakdown voltage between the input terminals. | |
Peak forward current | IFP | Maximum instantaneous value of the forward current. | |
LED operate current | IFon | Current when the output switches on (by increasing the LED current) with a designated supply voltage and load connected between the output terminals. | |
LED turn off current | IFoff | Current when the output switches off (by decreasing the LED current) after operating the device with a designated supply voltage and load connected between the output terminals. | |
LED dropout voltage | VF | Dropout voltage between the input terminals due to forward current. | |
Power dissipation | Pin | Allowable power dissipation between the input terminals. | |
Output | Load voltage | VL | Supply voltage range at the output used to normally operate the PhotoMOS®. Represents the peak value for AC voltages. |
Continuous load current | IL | Maximum current value that flows continuously between the output terminals of the PhotoMOS® under designated ambient temperature conditions. Represents the peak value for AC current. | |
On resistance | Ron | Obtained using the equation below from dropout voltage VDS (on) between the output terminals (when a designated LED current is made to flow through the input terminals and the designated load current through the output terminals.) Ron = VDS (on)/IL |
|
Off state leakage current | ILeak | Current flowing to the output when a designated supply voltage is applied between the output terminals with no LED current flow. | |
Power dissipation | Pout | Allowable power dissipation between the output terminals. | |
Open-circuit output voltage | Voc | Voltage required for driving a MOSFET | |
Short-circuit current | Isc | Current that is output from the driver when the input is turned on | |
Electrical characteristics |
Turn on time | Ton | Delay time until the output switches on after a designated LED current is made to flow through the input terminals. |
Turn off time | Toff | Delay time until the output switches off after the designated LED current flowing through the input terminals is cut off. | |
I/O capacitance | Ciso | Capacitance between the input and output terminals. | |
Output capacitance | Cout | Capacitance between output terminals when LED current does not flow. | |
I/O isolation resistance | Riso | Resistance between terminals (input and output) when a specified voltage is applied between the input and output terminals. | |
Total power dissipation | PT | Allowable power dissipation in the entire circuit between the input and output terminals. | |
I/O isolation voltage | Viso | Critical value before dielectric breakdown occurs, when a high voltage is applied for 1 minute between the same terminals where the I/O isolation resistance is measured. | |
Ambient temperature |
Operating | Topr | Ambient temperature range in which the PhotoMOS® can operate normally with a designated load current conditions. |
Storage | Tstg | Ambient temperature range in which the PhotoMOS® can be stored without applying voltage. | |
Max. operating frequency | — | Max. operating frequency at which a PhotoMOS® can operate normally when applying the specified pulse input to the input terminal |
Classification | Item | Condition | Purpose |
---|---|---|---|
Life tests | High temperature storage test | Tstg (Max.) | Determines resistance to long term storage at high temperature. |
Low temperature storage test | Tstg (Min.) | Determines resistance to long term storage at low temperature. | |
High temperature and high humidity storage test | 85°C, 85% RH | Determines resistance to long term storage at high temperature and high humidity. | |
Continuous operation life test | VL = Max., IL = Max., IF = Recommended LED forward current |
Determines resistance to electrical stress (voltage and current). | |
Thermal environment tests |
Temperature cycling test | Low storage temperature (Tstg Min.) High storage temperature (Tstg Max.) |
Determines resistance to exposure to both low temperatures and high temperatures. |
Thermal shock test | Low temperature (0°C), High temperature (100°C) |
Determines resistance to exposure to sudden changes in temperature. | |
Solder burning resistance | 260±5°C, 10 s | Determines resistance to thermal stress occurring while soldering. | |
Mechanical environment tests |
Vibration test | 196 m/s2 {20 G}, 100 to 2,000 Hz *1 | Determines the resistance to vibration sustained during shipment or operation. |
Shock test | 9,800 m/s2 {1,000 G} 0.5 ms *2; 4,900 m/s2 {500 G} 1 ms |
Determines the mechanical and structural resistance to shock. | |
Terminal strength test | Determined from terminal shape and cross section | Determines the resistance to external force on the terminals of the PhotoMOS® mounted on the PC board while wiring or operating. | |
Solderability | 245°C, 3 s (with soldering flux) | Evaluates the solderability of the terminals. |
*1 10 to 55 Hz at double amplitude of 3 mm for Power PhotoMOS®.
*2 4,900 m/s2, 1 ms for Power PhotoMOS®.
Download
Title | Language | File size | Update | |
---|---|---|---|---|
PhotoMOSリレー用語説明 | JP | 142.3KB | April 1, 2022 | |
Terminology PhotoMOS |
EN | 49.9KB | April 1, 2022 | |
术语说明 PhotoMOS |
CN-Simplified | 309.2KB | October 10, 2013 |
Requests to customers (Automation Control Components & Industrial Device) [Excluding specific product]
Requests to customers (Automation Control Components & Industrial Device) [For specific product]
Requests to customers (FA Sensors & Components [Excluding motors])
Requests to customers (Dedicated to industrial motors)