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Product Detailed Parameters
- Description：OPTOISOLTR 50KV OPEN COLLECTOR
- Series：-
- Mfr：TT Electronics/Optek Technology
- Package：Bulk
- Number of Channels：1
- Inputs - Side 1/Side 2：1/0
- Voltage - Isolation：50000VDC
- Common Mode Transient Immunity (Min)：-
- Input Type：DC
- Output Type：Open Collector, Schottky Clamped
- Current - Output / Channel：25 mA
- Data Rate：5Mbps
- Propagation Delay tpLH / tpHL (Max)：70ns, 120ns
- Rise / Fall Time (Typ)：-
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：50mA
- Voltage - Supply：7V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Through Hole
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The OPI155 is a high-speed optically coupled isolator manufactured by TT Electronics/Optek Technology. It features a monolithic photo-IC comprising a photodiode and DC amplifier driving an open collector output Schottky transistor, connected via an internal light pipe. The device provides 50 kV electrical isolation and supports data rates exceeding 5 MBd. Key electrical parameters include a maximum forward current of 50 mA, an output channel current of 25 mA, and propagation delays of 70 ns (tpLH) and 120 ns (tpHL). It is housed in a hermetically sealed package designed for high voltage isolation applications.
Feature Summary
- High speed digital isolation with data rates greater than 5 MBd
- Hermetically sealed LED and photosensor construction
- Open collector output with Schottky clamping
Applications
- High voltage isolation between input and output circuits
- Digital signal transmission requiring high speed
- Isolation in systems demanding 50 kV electrical separation
Procurement Notes
Verify the specific datasheet version for the OPI155 to confirm pinout compatibility and absolute maximum ratings before integration. Ensure that the supply chain source provides documentation confirming the hermetic seal integrity and RoHS compliance status as specified by the manufacturer. Cross-reference the 5-pin axial package dimensions against the target PCB layout to ensure mechanical fit.
Selection Notes
Select the OPI155 when application requirements demand both high-speed data transmission and significant voltage isolation capabilities. The open collector output configuration requires appropriate external pull-up components. Consider the 50 kV isolation rating for safety-critical interfaces. Evaluate the 25 mA output current capability against the load requirements of the receiving circuitry to ensure reliable switching performance.
Part Context
The OPI155 belongs to the OPI series of high-speed optocouplers from TT Electronics/Optek Technology. This series utilizes monolithic photo-IC technology to achieve fast response times while maintaining robust electrical isolation. The component is distinct from standard logic isolators due to its hermetic sealing and high dielectric strength plastic housing, targeting industrial and communication environments.
Replacement Considerations
The OPI150 and OPI153 are documented within the same product family datasheet. Verify functional equivalence regarding pinout and electrical characteristics before substitution.
