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CNZ3731
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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH DARL 4-DIL
- Series：-
- Mfr：Panasonic Electronic Components
- Package：Bulk
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：1000% @ 1mA
- Current Transfer Ratio (Max)：-
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：40µs, 15µs
- Input Type：DC
- Output Type：Darlington
- Voltage - Output (Max)：300V
- Current - Output / Channel：150mA
- Voltage - Forward (Vf) (Typ)：1.35V
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：1V
- Operating Temperature：-30°C ~ 100°C
- Mounting Type：Through Hole
- Package / Case：4-DIP (0.300", 7.62mm)
- Supplier Device Package：4-DIL
- Grade：-
- Qualification：-
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Overview
The CNZ3731 is a single-channel optoisolator manufactured by Panasonic Electronic Components. It features a GaAs infrared LED optically coupled to an NPN Darlington phototransistor output. The device provides 5000Vrms voltage isolation between input and output circuits. It is housed in a compact 4-DIP package with a 0.300-inch (7.62mm) width, facilitating easy integration into printed circuit board designs requiring electrical isolation.
Feature Summary
- Integrates a GaAs infrared LED with an NPN Darlington phototransistor for high-gain signal transmission
- Provides robust 5000Vrms electrical isolation capability between input and output sides
- Configured as a single channel with built-in diode and resistor components
Applications
- Industrial control systems requiring galvanic isolation
- Power supply feedback loops
- Microcontroller interface circuits
Procurement Notes
Verify the specific datasheet version and manufacturer documentation to confirm pinout configurations and absolute maximum ratings before implementation. Ensure compliance with relevant safety certifications required for your specific application environment. Cross-reference official Panasonic specifications to validate performance parameters against design requirements.
Selection Notes
Select this component when high isolation voltage and Darlington gain are necessary within a standard DIP footprint. Consider the internal built-in diode and resistor configuration when designing drive circuits. Evaluate thermal management needs based on the specific operating conditions of the target system.
Part Context
This part belongs to the Panasonic optoisolator series designed for reliable signal transfer across isolated boundaries. The use of GaAs technology ensures efficient light emission from the input side, while the silicon Darlington structure provides significant current amplification at the output, suitable for driving various loads directly.
Replacement Considerations
Consult official Panasonic documentation for verified substitute part numbers. Do not assume functional equivalence with other manufacturers' devices without verifying pinouts, isolation ratings, and electrical characteristics.
