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Product Detailed Parameters
- Description：OPTOISO 1KV TRANS W/BASE TO-78-6
- Series：-
- Mfr：TT Electronics/Optek Technology
- Package：Bulk,Bulk
- Number of Channels：1
- Voltage - Isolation：1000VDC
- Current Transfer Ratio (Min)：100% @ 10mA
- Current Transfer Ratio (Max)：-
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：20µs, 20µs
- 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 4N24ATXV is a high-reliability optically coupled isolator manufactured by TT Electronics/Optek Technology. It comprises an infrared emitting diode and an NPN silicon phototransistor housed in a hermetically sealed TO-78 metal can package. The device provides 1000 VDC electrical isolation between input and output channels. Key electrical parameters include a maximum collector-emitter voltage of 35V, a DC forward current limit of 40 mA, and a typical current transfer ratio of 100% at 10 mA input. The unit features a base contact for transistor biasing and operates within a temperature range of -65°C to 125°C.
Feature Summary
- Hermetically sealed TO-78 metal can package designed for military and harsh environments
- High current transfer ratio with 1 kV electrical isolation capability
- Integrated base contact on the NPN silicon phototransistor for conventional biasing
Applications
- High-voltage isolation between input and output circuits
- Electrical isolation in electrically noisy or dirty environments
- Industrial equipment signal interfacing
- Medical equipment safety isolation
- Office equipment interface protection
Procurement Notes
Verify component authenticity due to discontinued status. Confirm MIL-PRF-19500 processing compliance if required for specific applications. Check RoHS non-compliance implications for modern assembly lines. Validate lot traceability and hermetic seal integrity upon receipt. Ensure storage conditions maintain moisture sensitivity level 1 integrity before reflow or through-hole mounting.
Selection Notes
Select this component when hermetic sealing and military-grade reliability are mandatory. The TO-78 package suits applications requiring superior environmental resistance compared to plastic packages. The base terminal allows for improved switching speed control via external biasing networks. Consider the 1000 VDC isolation rating for safety-critical interfaces. Evaluate thermal management requirements given the wide operating temperature range.
Part Context
This device belongs to the 4N22/4N24 series of hi-reliability optocouplers processed to MIL-PRF-19500 standards. The 'TXV' suffix indicates specific processing variations within this military-grade family. These components are engineered for long-term stability in demanding operational conditions where standard commercial isolators may fail.
Replacement Considerations
Public confirmed substitute part numbers include 4N24 and 4N24A from TT Electronics/Optek Technology. Verify pinout compatibility and parameter equivalence before substitution.
