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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH TRANS 6-DIP
- Series：-
- Mfr：Vishay Semiconductor Opto Division
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：160% @ 10mA
- Current Transfer Ratio (Max)：320% @ 10mA
- Turn On / Turn Off Time (Typ)：4µs, 4.7µs
- Rise / Fall Time (Typ)：4µs, 4.7µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：70V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.25V
- Current - DC Forward (If) (Max)：60 mA
- Vce Saturation (Max)：300mV
- Operating Temperature：-55°C ~ 100°C
- Mounting Type：Through Hole
- Package / Case：6-DIP (0.300", 7.62mm)
- Supplier Device Package：6-DIP
- Grade：-
- Qualification：-
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Overview
The TCDT1124 is a single-channel transistor output optoisolator from Vishay, featuring an NPN phototransistor coupled to a gallium arsenide infrared emitting diode. It provides 5000 Vrms isolation voltage and operates in a 6-lead plastic dual inline package (PDIP-6). Key electrical parameters include a minimum current transfer ratio of 160% and a maximum of 320%. The device supports a forward current of 50 mA with a forward voltage of 1.25 V to 1.6 V. Maximum collector-emitter voltage is 70 V, with a saturation voltage of 300 mV. Switching characteristics include a rise time of 4 µs and a fall time of 4.7 µs.
Feature Summary
- High-speed operation with optimized switching times for signal integrity
- Robust insulation capability with 5000 Vrms isolation rating
- Wide current transfer ratio range ensuring consistent gain performance
Applications
- Industrial control systems requiring galvanic isolation
- Power supply feedback loops
- Signal transmission across isolated boundaries
Procurement Notes
Verify the specific suffix (e.g., G) against the manufacturer's latest datasheet to confirm compliance with RoHS standards and packaging details. Ensure the ordering part number matches the required lead frame finish and tape-and-reel or tube configuration. Cross-reference the vendor's official documentation for any updates on recommended operating conditions or thermal derating curves prior to final procurement.
Selection Notes
Select this component when high isolation voltage and moderate speed are required for transistor-coupled applications. The wide CTR range accommodates variations in input drive conditions. Consider the PDIP-6 package constraints for PCB layout and thermal management. Validate that the 70 V collector-emitter voltage meets the load requirements in the target circuit design.
Part Context
This device belongs to the TCDT1120 series, which includes variants like the TCDT1124G. The series utilizes a gallium arsenide LED paired with an NPN phototransistor. It is designed for general-purpose isolation tasks where reliability and electrical safety are paramount. The family shares similar pinouts and mechanical dimensions, differing primarily in electrical specifications such as CTR and switching speeds.
Replacement Considerations
Direct substitutes within the same Vishay series include the TCDT1120, TCDT1121, TCDT1122, and TCDT1123. Verify that alternative part numbers meet the specific CTR and voltage requirements of the application before substitution.
FAQ
What is the typical current transfer ratio for the TCDT1124?
The current transfer ratio ranges from a minimum of 160% to a maximum of 320%.
Does the TCDT1124 support through-hole mounting?
Yes, it is available in a PDIP-6 package suitable for through-hole installation.
