CD4078BK

Gates And Inverters - Multi-Function, Configurable Overview

The CD4078BK is a single-function, eight-input OR/NOR gate manufactured by Harris Corporation. It belongs to the 4000/14000/40000 series of CMOS logic devices and is housed in a ceramic DIP-14 package. The component operates within a supply voltage range of 3V to 18V, with typical nominal voltages at 5V, 10V, and 15V. It features a maximum propagation delay of 300 ns at nominal supply and supports an output current of up to 6.8 mA. The device is rated for operation between -55°C and 125°C and includes radiation hardening characteristics.

Gates And Inverters - Multi-Function, Configurable Feature Summary

• Configurable as either an OR or NOR gate via input control
• Radiation hardened construction suitable for harsh environments
• Wide operating temperature range from -55°C to 125°C

Gates And Inverters - Multi-Function, Configurable Applications

• Spacecraft logic systems requiring radiation tolerance
• Military electronic circuits
• High-reliability industrial control logic

Gates And Inverters - Multi-Function, Configurable Procurement Notes

Verify the specific suffix 'BK' against official Harris datasheets to confirm exact pinout and electrical tolerances. Ensure the ceramic DIP-14 package matches the design requirements. Confirm radiation hardening specifications if used in sensitive environments. Check RoHS compliance status as older Harris parts may not meet modern standards.

Gates And Inverters - Multi-Function, Configurable Selection Notes

Select this component when a single eight-input configurable gate is required in a radiation-hardened environment. Compare against standard plastic packages if cost is a primary driver, noting that ceramic offers superior thermal and mechanical stability. Verify that the 300 ns delay meets system timing constraints.

Gates And Inverters - Multi-Function, Configurable Part Context

The CD4078BK is part of the Harris 4000B series, which provides high-noise immunity and low power consumption. This series is widely used in aerospace and defense applications due to its robustness. The BK suffix typically denotes a specific military-grade or high-reliability variant within the broader CD4078 family.

Gates And Inverters - Multi-Function, Configurable Replacement Considerations

Check for direct equivalents such as the CD4078BF or CD4078BDMSR from Harris. Verify pin compatibility and electrical parameters before substitution. Other manufacturers may offer compatible parts, but radiation hardening specs must be matched.