Overview
The TLP127, produced by Toshiba Semiconductor and Storage, is a mini-flat photocoupler designed for surface mount assembly. It consists of an infrared emitting diode optically coupled to a Darlington photo transistor with an integral base-emitter resistor. This component is widely used in applications requiring electrical isolation and high current transfer ratios.
Key Specifications
| Characteristic | Symbol | Min | Typ. | Max | Unit |
|---|---|---|---|---|---|
| Forward Voltage | Vf | 1.0 | 1.15 | 1.3 | V |
| Forward Current | If | 16 | 50 | mA | |
| Pulse Forward Current | Ifp | 1 | A | ||
| Reverse Voltage | Vr | 5 | V | ||
| Collector-Emitter Voltage | Vceo | 300 | V | ||
| Collector Current | Ic | 150 | mA | ||
| Isolation Voltage | 2500 | Vrms | |||
| Current Transfer Ratio | 1000% | % | |||
| Operating Temperature | Topr | -25 | 85 | °C | |
| Storage Temperature Range | Tstg | -55 | 125 | °C |
Key Features
- Optical coupling between an infrared emitting diode and a Darlington photo transistor with an integral base-emitter resistor.
- High current transfer ratio of 1000% (min).
- High isolation voltage of 2500 Vrms (min).
- UL-recognized (UL 1577, File No. E67349) and cUL-recognized (CSA Component Acceptance Service No.5A File No.E67349).
- VDE-approved (EN 60747-5-5) for specific types.
- Compact SOP-4 package suitable for surface mount assembly.
- Operating temperature range from -25°C to 85°C.
Applications
- Programmable controllers and DC-output modules.
- Telecommunication systems.
- Industrial control systems requiring electrical isolation.
- Analog signal transmission across isolated circuits.
- High-reliability applications where electrical noise and interference need to be minimized.
Q & A
- What is the TLP127?
The TLP127 is a mini-flat photocoupler consisting of an infrared emitting diode optically coupled to a Darlington photo transistor with an integral base-emitter resistor.
- What is the current transfer ratio of the TLP127?
The current transfer ratio of the TLP127 is 1000% (min).
- What is the isolation voltage of the TLP127?
The isolation voltage of the TLP127 is 2500 Vrms (min).
- What are the operating temperature ranges for the TLP127?
The operating temperature range for the TLP127 is from -25°C to 85°C.
- What certifications does the TLP127 have?
The TLP127 is UL-recognized (UL 1577, File No. E67349), cUL-recognized (CSA Component Acceptance Service No.5A File No.E67349), and VDE-approved (EN 60747-5-5) for specific types.
- What is the package type of the TLP127?
The TLP127 comes in a SOP-4 package suitable for surface mount assembly.
- What are the typical applications of the TLP127?
The TLP127 is typically used in programmable controllers, DC-output modules, telecommunication systems, and industrial control systems requiring electrical isolation.
- What is the maximum collector current of the TLP127?
The maximum collector current of the TLP127 is 150 mA.
- What is the maximum collector-emitter voltage of the TLP127?
The maximum collector-emitter voltage of the TLP127 is 300 V.
- How does the TLP127 ensure electrical isolation?
The TLP127 ensures electrical isolation through optical coupling between the infrared emitting diode and the Darlington photo transistor, providing a high isolation voltage of 2500 Vrms (min).
