CD4073BE-NG Equivalent & Substitute Parts

Part Overview

The CD4073BE-NG is a 3-channel AND gate logic integrated circuit manufactured by Texas Instruments, part of the 4000B CMOS logic series. This device implements three independent 3-input AND gates in a 14-pin DIP package for through-hole mounting applications.

The CD4073BE-NG is classified as obsolete. Locating equivalent substitute parts becomes necessary for ongoing production support, design updates, or when through-hole inventory becomes unavailable. The CD4073BPWR provides functional equivalence with updated packaging and active product status.

Key Parameters

Parameter	Value
Logic Type	AND Gate
Number of Circuits	3
Number of Inputs	3
Voltage Supply Range	3V to 18V
Operating Temperature Range	-55°C to 125°C
Max Propagation Delay	90ns @ 15V, 50pF
RoHS Compliance	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the CD4073BE-NG is determined by the following critical parameters that must remain constant across equivalent parts:

Functional Parameters (Must Match):

Logic type: AND Gate
Number of circuits: 3
Number of inputs per circuit: 3
Voltage supply range: 3V to 18V
Operating temperature range: -55°C to 125°C
Max propagation delay: 90ns @ 15V, 50pF
Input logic levels: Low 1.5V–4V, High 3.5V–11V

Allowed Variations:

Mounting type (through-hole to surface mount)
Package form factor (14-DIP to 14-TSSOP)
Quiescent current (5 µA to 1 µA)
Output current (6.8mA to 3.4mA)
Product status (obsolete to active)
Packaging format (bulk to cut tape/reel)

The CD4073BPWR maintains all functional parameters while offering surface-mount packaging and active product availability.

Parameter Comparison

Parameter	CD4073BE-NG	CD4073BPWR	Match Status
Manufacturer	Texas Instruments	Texas Instruments	Identical
Series	4000B	4000B	Identical
Logic Type	AND Gate	AND Gate	Identical
Number of Circuits	3	3	Identical
Number of Inputs	3	3	Identical
Voltage Supply	3V to 18V	3V to 18V	Identical
Current - Quiescent (Max)	5 µA	1 µA	Compatible (Lower)
Current - Output High, Low	6.8mA, 6.8mA	3.4mA, 3.4mA	Compatible (Lower)
Input Logic Level - Low	1.5V to 4V	1.5V to 4V	Identical
Input Logic Level - High	3.5V to 11V	3.5V to 11V	Identical
Max Propagation Delay	90ns @ 15V, 50pF	90ns @ 15V, 50pF	Identical
Operating Temperature	-55°C to 125°C	-55°C to 125°C	Identical
Mounting Type	Through Hole	Surface Mount	Different
Package / Case	14-DIP (0.300", 7.62mm)	14-TSSOP (0.173", 4.40mm Width)	Different
Product Status	Obsolete	Active	Different
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Moisture Sensitivity Level	Not Applicable	1 (Unlimited)	Different

Engineering Selection Recommendations

CD4073BPWR Selection Criteria:

The CD4073BPWR is the active equivalent substitute for the obsolete CD4073BE-NG. Selection of this substitute is appropriate when:

Product Continuity: The CD4073BE-NG is obsolete. The CD4073BPWR maintains active product status with ongoing manufacturer support and availability.
Functional Equivalence: All logic function parameters are identical. The device implements the same 3-channel, 3-input AND gate configuration with matching propagation delay, voltage supply range, and operating temperature specifications.
Compliance: Both parts are ROHS3 compliant, meeting environmental and regulatory requirements for current manufacturing standards.
Performance Improvement: The CD4073BPWR exhibits lower quiescent current (1 µA vs. 5 µA) and reduced output current (3.4mA vs. 6.8mA), resulting in improved power efficiency without functional compromise.
Package Transition: The change from 14-DIP through-hole to 14-TSSOP surface-mount packaging requires PCB redesign. This transition is necessary for modern manufacturing processes and improved board density.
Availability: The CD4073BPWR is available in higher inventory quantities (2700 Pcs) with cut tape and reel packaging suitable for automated assembly.

Frequently Asked Questions (FAQ)

Q: Can the CD4073BPWR directly replace the CD4073BE-NG on existing PCBs?

A: No. The CD4073BE-NG uses 14-DIP through-hole packaging while the CD4073BPWR uses 14-TSSOP surface-mount packaging. PCB redesign is required. Pin-to-pin functionality is identical, but physical mounting and footprint differ.

Q: Are the logic function parameters identical between these parts?

A: Yes. Both parts implement three independent 3-input AND gates with identical propagation delay (90ns @ 15V, 50pF), voltage supply range (3V–18V), input logic levels, and operating temperature range (-55°C to 125°C).

Q: What is the significance of the lower quiescent and output current in the CD4073BPWR?

A: The CD4073BPWR exhibits reduced power consumption (1 µA quiescent vs. 5 µA, and 3.4mA output vs. 6.8mA). This represents improved device efficiency and is compatible with the original specification, as the original part's current ratings are not exceeded.

Q: Is the CD4073BPWR suitable for high-temperature applications?

A: Yes. The CD4073BPWR maintains the full operating temperature range of -55°C to 125°C, identical to the CD4073BE-NG.

Q: What does the MSL rating difference mean?

A: The CD4073BE-NG lists MSL as "Not Applicable" (through-hole component), while the CD4073BPWR lists MSL 1 (Unlimited), indicating the surface-mount device has no moisture sensitivity restrictions during storage and handling.

Q: Are both parts RoHS compliant?

A: Yes. Both the CD4073BE-NG and CD4073BPWR are ROHS3 compliant, meeting current environmental and regulatory standards.

Q: What is the base product number for these parts?

A: The base product number is CD4073, with BE-NG and BPWR designating specific packaging and configuration variants within the 4000B logic series.

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