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Product Detailed Parameters
- Description：OPTOISOLTR 1KV 1CH TRANS TO-72-4
- Series：-
- Mfr：TT Electronics/Optek Technology
- Package：Bulk
- Number of Channels：1
- Voltage - Isolation：1000VDC
- Current Transfer Ratio (Min)：30% @ 10mA
- Current Transfer Ratio (Max)：200% @ 10mA
- Turn On / Turn Off Time (Typ)：9µs, 6µs (Max)
- Rise / Fall Time (Typ)：-
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：50V
- Current - Output / Channel：30mA
- Voltage - Forward (Vf) (Typ)：1.2V (Max)
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：400mV
- Operating Temperature：-55°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：TO-206AF, TO-72-4 Metal Can
- Supplier Device Package：TO-72-4
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Overview
The 3C91C is a single-channel transistor output optocoupler manufactured by TT Electronics/Optek Technology. Designed for through-hole mounting in TO-72-4 packages, it provides electrical isolation between input and output circuits. The device features an NPN phototransistor output capable of handling a maximum collector-emitter voltage of 30 V and a collector current of 30 mA. It operates with a forward current of 10 mA and exhibits a minimum forward voltage of 1.5 V. The component ensures robust signal transmission with a guaranteed insulation voltage of 1000 Vrms.
Feature Summary
- Provides galvanic isolation for signal transmission between separate circuit domains
- Utilizes an NPN phototransistor output stage for digital switching applications
- Engineered for reliable operation in demanding environments requiring high reliability sensors
Applications
- Signal isolation in industrial control systems
- Interface circuits for microcontrollers and logic gates
- Power supply feedback loops requiring voltage isolation
Procurement Notes
Verify the specific manufacturer part number against official TT Electronics documentation to ensure authenticity. Confirm that the TO-72-4 package style matches the design requirements. Check for RoHS compliance status as indicated in the latest datasheet. Ensure the supplier provides valid traceability records for critical electronic components.
Selection Notes
Select this component when a single channel of isolation is required with a transistor output. Consider the 30 V collector-emitter voltage rating for low-voltage logic interfacing. Evaluate the 1000 Vrms insulation capability for safety isolation standards. Compare the CTR range against the driving circuit requirements to ensure sufficient gain.
Part Context
This component belongs to the Optek line of high-reliability sensors produced by TT Electronics. The product family focuses on non-contact sensing and signal isolation solutions suitable for harsh operating conditions. These devices are engineered to deliver consistent performance in applications where electrical noise or ground potential differences must be managed effectively.
Replacement Considerations
Consult official substitution guides from TT Electronics for verified alternatives. Cross-reference pinouts and electrical characteristics before implementing any substitute part numbers.
