CD4047BF3A Equivalent & Substitute Parts

Part Overview

The CD4047BF3A is a CMOS low-power monostable/astable multivibrator manufactured by Texas Instruments, designed for logic-level timing and pulse generation applications. This 14-pin through-hole component operates across a wide supply voltage range of 3V to 18V and maintains active product status with full RoHS3 compliance. Substitute parts are identified when equivalent functional performance, electrical specifications, and package compatibility align with application requirements, enabling component sourcing flexibility while maintaining circuit performance standards.

Substiute Parts

CD4047BF3A

Texas InstrumentsIn Stock: 1587CD4047BF3A Datasheet

Current PartRFQ

CD4047BE

Texas InstrumentsIn Stock: 2213CD4047BE Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD4047BF3A is determined by the following critical parameters:

Functional Equivalence: Both parts must operate as monostable/astable multivibrators within the 4000B CMOS logic series, maintaining single independent circuit configuration.

Electrical Compatibility: Supply voltage range (3V ~ 18V), output current specifications (6.8mA high/low), and operating temperature range (-55°C ~ 125°C) must be maintained or exceeded.

Package Compatibility: Through-hole mounting with 14-pin DIP package footprint (0.300" spacing, 7.62mm) ensures direct PCB substitution without layout modification.

Compliance Status: Active product status and RoHS3 compliance are required for current manufacturing and regulatory standards.

The CD4047BE qualifies as a substitute based on these parameters, with the distinction that propagation delay (80 ns) is faster than the CD4047BF3A (150 ns), representing an operational improvement rather than degradation.

Parameter Comparison

Engineering Selection Recommendations

CD4047BF3A Selection: Appropriate for applications requiring the specified 150 ns propagation delay characteristic. Active product status and RoHS3 compliance support current procurement and manufacturing integration. Through-hole 14-CDIP packaging accommodates legacy and new PCB designs with standard 0.300" DIP spacing.

CD4047BE Selection: Applicable where faster timing performance (80 ns propagation delay) is compatible with circuit requirements. Identical electrical specifications, supply voltage range, output current ratings, and operating temperature range ensure direct functional substitution. Active product status and RoHS3 compliance maintain regulatory and supply chain continuity. 14-DIP package footprint aligns with standard through-hole DIP spacing, enabling direct PCB substitution without design modification.

Selection Basis: Both parts maintain identical core electrical parameters (supply voltage, output current, operating temperature, independent circuits). The primary distinction is propagation delay performance. Component selection should be based on timing requirements within the application circuit. Both parts carry active product status and full RoHS3 compliance, supporting current manufacturing standards and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can CD4047BE directly replace CD4047BF3A in existing PCB designs?

A: Yes. Both parts feature identical 14-pin through-hole DIP package footprints with 0.300" (7.62mm) spacing. Electrical specifications including supply voltage (3V ~ 18V), output current (6.8mA), and operating temperature range (-55°C ~ 125°C) are identical. Direct PCB substitution is possible without layout modification.

Q: What is the primary difference between CD4047BF3A and CD4047BE?

A: Propagation delay differs: CD4047BF3A operates at 150 ns, while CD4047BE operates at 80 ns. Both parts function as monostable/astable multivibrators within the 4000B CMOS logic series. The faster propagation delay of CD4047BE represents improved timing performance.

Q: Are both parts RoHS3 compliant?

A: Yes. Both CD4047BF3A and CD4047BE carry ROHS3 Compliant status, meeting current environmental and regulatory requirements for electronic component manufacturing and procurement.

Q: Do both parts support the same supply voltage range?

A: Yes. Both parts operate across 3V to 18V supply voltage range, maintaining identical electrical performance across this specification window.

Q: What mounting configuration do both parts use?

A: Both parts are through-hole mounted components in 14-pin DIP packages. CD4047BF3A uses 14-CDIP packaging, while CD4047BE uses 14-DIP packaging. Both maintain 0.300" (7.62mm) pin spacing, ensuring PCB footprint compatibility.

Q: Are both parts currently in active production?

A: Yes. Both CD4047BF3A and CD4047BE maintain Active product status from Texas Instruments, supporting current procurement and manufacturing integration.