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Product Detailed Parameters
- Description：OPTOISO 1KV TRANS W/BASE TO-78-6
- Series：-
- Mfr：TT Electronics/Optek Technology
- Package：Bulk
- Number of Channels：1
- Voltage - Isolation：1000VDC
- Current Transfer Ratio (Min)：25% @ 10mA
- Current Transfer Ratio (Max)：-
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：15µs, 15µs
- Input Type：DC
- Output Type：Transistor with Base
- Voltage - Output (Max)：35V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.3V (Max)
- Current - DC Forward (If) (Max)：40 mA
- Vce Saturation (Max)：300mV
- Operating Temperature：-65°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：TO-78-6 Metal Can
- Supplier Device Package：TO-78-6
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Overview
The 4N22A is a single-channel transistor output optocoupler manufactured by TT Electronics/Optek Technology. It features an NPN phototransistor output and provides electrical isolation with a rated insulation voltage of 1000 Vrms. The device supports surface mount (SMD/SMT) installation and operates within a temperature range of -55°C to +125°C. Key electrical specifications include a maximum collector-emitter voltage of 30V, a maximum collector current of 50mA, and a power dissipation rating of 300mW. The component utilizes a bulk packaging format.
Feature Summary
- Provides galvanic isolation between input and output circuits using an infrared LED and NPN phototransistor configuration.
- Designed for high-temperature operation suitable for demanding industrial environments.
- Supports surface mount technology for automated assembly processes.
Applications
- Signal isolation in digital communication interfaces
- Switching applications requiring electrical separation
- General-purpose optoisolation in control circuits
Procurement Notes
Verify the specific manufacturing date code and lot traceability upon receipt, as this component may be subject to obsolescence or limited availability. Confirm that the received units match the exact Optek/TT Electronics part number and package type. Check for any physical damage to the leads or casing before integration into the circuit design.
Selection Notes
Select the 4N22A when a standard single-channel isolation solution with NPN output is required. Ensure the application voltage does not exceed the 30V collector-emitter limit. Consider the thermal management requirements given the 300mW power dissipation rating and the wide operating temperature range.
Part Context
This component belongs to the 4N22 series of transistor output optocouplers from TT Electronics/Optek Technology. It is functionally related to other variants such as the 4N22TX and 4N22ATX, which share similar isolation characteristics but may differ in packaging or specific electrical tolerances defined by the manufacturer's product line.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Evaluate cross-referencing with other single-channel NPN phototransistor optocouplers only after verifying pinout compatibility and electrical parameter alignment with the original design requirements.
