CD4011BCN Equivalent & Substitute Parts

Part Overview

The CD4011BCN is a NAND Gate IC with 4 channels and 2 inputs per channel, manufactured by onsemi in a 14-MDIP package. This logic component operates across a supply voltage range of 3V to 15V and is designed for through-hole mounting applications. The CD4011BCN is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain functional equivalence in logic operation, pin configuration, and electrical performance within specified tolerances.

Substiute Parts

CD4011BCN

onsemiIn Stock: 2356CD4011BCN Datasheet

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CD4011BE

Texas InstrumentsIn Stock: 21529CD4011BE Datasheet

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CD4011UBE

Texas InstrumentsIn Stock: 1764CD4011UBE Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CD4011BCN are qualified based on the following criteria:

Functional Equivalence: All substitute parts must be NAND Gate ICs with 4 channels and 2 inputs per channel, maintaining identical logic operation and pin configuration.

Package Compatibility: All substitutes use 14-DIP through-hole packaging with 0.300" (7.62mm) spacing, ensuring direct board-level compatibility.

Electrical Performance: Substitute parts must operate within the specified supply voltage range (3V minimum to 15V maximum for the main part, with extended ranges acceptable for substitutes). Quiescent current and output current specifications must be equivalent or superior.

Series Consistency: All parts belong to the 4000B logic series, ensuring design compatibility and functional interchangeability.

Operating Temperature Range: All parts support the -55°C to 125°C operating temperature range.

The CD4011BE and CD4011UBE from Texas Instruments meet these criteria and are classified as active products, providing long-term availability advantages over the obsolete CD4011BCN.

Parameter Comparison

Engineering Selection Recommendations

CD4011BE (Texas Instruments): This part is recommended as the primary substitute for the obsolete CD4011BCN. It maintains full functional and electrical equivalence with identical quiescent current, output current, and operating temperature specifications. The extended supply voltage range (3V ~ 18V) provides additional design margin. The part is ROHS3 compliant and carries active product status, ensuring long-term availability and supply chain stability.

CD4011UBE (Texas Instruments): This variant offers superior propagation delay performance (50ns versus 70ns at 15V, 50pF), making it suitable for applications requiring faster logic switching. It is also ROHS3 compliant and maintains active product status. The input logic level specifications differ slightly from the main part, requiring verification against specific circuit requirements before selection.

Both Texas Instruments substitutes provide compliance certifications and active product status, eliminating the obsolescence risk associated with the CD4011BCN.

Frequently Asked Questions (FAQ)

Q: Can CD4011BE and CD4011UBE be used interchangeably with CD4011BCN?

A: Yes, both parts are direct functional substitutes. All three parts share identical pin configurations, logic operation (4-channel NAND gates with 2 inputs), and package dimensions (14-DIP, 0.300" spacing). They operate within overlapping supply voltage ranges and maintain equivalent quiescent and output current specifications.

Q: What is the difference between CD4011BE and CD4011UBE?

A: The primary difference is propagation delay: CD4011UBE operates at 50ns (15V, 50pF) compared to CD4011BE at 90ns. CD4011UBE also specifies different input logic level thresholds. For timing-critical applications, CD4011UBE provides faster switching performance. Both are ROHS3 compliant and active products.

Q: Why is the CD4011BCN obsolete?

A: The CD4011BCN is classified as obsolete by onsemi. Texas Instruments continues to manufacture equivalent parts (CD4011BE and CD4011UBE) in the same 4000B logic series, providing continuity for designs requiring NAND gate functionality.

Q: Are there any compliance differences between the parts?

A: CD4011BE and CD4011UBE are both ROHS3 compliant with REACH Unaffected status. The CD4011BCN does not specify RoHS compliance. All three parts carry identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications.

Q: Can these parts be soldered using the same process?

A: Yes. All three parts use through-hole 14-DIP packaging with identical pin spacing (0.300", 7.62mm), allowing direct board-level substitution without layout modifications. Standard through-hole soldering processes apply to all variants.

Q: What supply voltage range should I use for substitution?

A: The CD4011BCN operates at 3V ~ 15V. Both substitute parts (CD4011BE and CD4011UBE) support 3V ~ 18V, providing extended voltage margin. Designs operating within the original 3V ~ 15V range are fully compatible with both substitutes.