CD4047BF

Overview

The CD4047BF is a CMOS low-power monostable/astable multivibrator from the CD4047B series, manufactured by Texas Instruments. It operates within a supply voltage range of 3 V to 18 V and supports an operating temperature range of -55°C to +125°C. The device features a propagation delay of 1000 ns at 15 V and 300 ns at 15 V for specific conditions, with a maximum power supply current of 20 uA. It provides output currents of 4.2 mA (low) and -4.2 mA (high). The component is housed in a 14-lead hermetic dual-in-line ceramic package (CDIP), designated by the F suffix.

Feature Summary

• Hermetically sealed ceramic construction suitable for demanding environments
• Capable of functioning as both a monostable and astable multivibrator
• Low power consumption characteristics inherent to CMOS technology

Applications

• Military and defense applications requiring QML certification
• High-reliability timing circuits
• Frequency division and waveform generation

Procurement Notes

Verify that the ordering suffix 'F' corresponds to the 14-lead hermetic ceramic dual-in-line package (CDIP). Confirm RoHS status, which is listed as No for this specific military-grade variant. Ensure the supplier provides traceability documentation consistent with military or defense application requirements, as standard commercial versions differ in packaging and material composition.

Selection Notes

Select the CD4047BF when hermetic sealing and extended temperature performance are required. This part belongs to the CD4047B-MIL qualified version line. Compare against plastic DIP (BE) or SOIC (BM96) variants if environmental sealing is not necessary. Verify pinout compatibility with existing board layouts designed for 14-lead packages.

Part Context

The CD4047BF is part of the broader CD4047B family of CMOS logic devices. It serves as the military-grade, hermetically sealed ceramic counterpart to the standard catalog CD4047BE. While functionally identical regarding electrical parameters, the BF variant offers superior environmental protection and reliability for aerospace or defense systems where moisture ingress must be prevented.

Replacement Considerations

Direct substitutes include other CD4047BF units or equivalent military-qualified monostable/astable multivibrators from authorized distributors. Commercial equivalents like CD4047BE lack hermetic sealing and may not meet strict environmental specifications.