CD4031BPW Equivalent & Substitute Parts

Part Overview

The CD4031BPW is a 64-bit shift register with D-type logic configuration, manufactured by Texas Instruments in the 4000B series. This static shift register operates across a wide supply voltage range of 3V to 18V and maintains functionality across industrial temperature ranges from -55°C to 125°C. The device is classified as Last Time Buy, indicating discontinued production status. Identifying equivalent substitute parts is essential for ongoing procurement, design continuity, and long-term system support when original inventory becomes unavailable.

Substiute Parts

CD4031BPW

Texas InstrumentsIn Stock: 1514CD4031BPW Datasheet

Current PartRFQ

CD4031BPWR

Texas InstrumentsIn Stock: 825CD4031BPWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD4031BPW is determined by strict equivalence across the following critical parameters:

• Logic Function: D-type shift register with 64-bit configuration and complementary output
• Electrical Specifications: Supply voltage range 3V to 18V and operating temperature range -55°C to 125°C
• Package Compatibility: 16-TSSOP surface mount package with identical 0.173" (4.40mm) width
• Regulatory Compliance: ROHS3 compliance, MSL Level 1, and REACH unaffected status
• Series Designation: 4000B logic series

The CD4031BPWR qualifies as a direct substitute based on identical electrical characteristics, functional specifications, and package geometry. The distinction between these parts lies exclusively in packaging format: the CD4031BPW is supplied in Tube packaging, while the CD4031BPWR is supplied in Tape & Reel (TR) format. Both parts share the same base product number (CD4031) and maintain full functional and electrical equivalence.

Parameter Comparison

Engineering Selection Recommendations

The CD4031BPWR is a direct functional and electrical equivalent to the CD4031BPW. Selection between these parts should be based on the following criteria:

For CD4031BPWR Selection: The CD4031BPWR maintains Active product status with Texas Instruments, ensuring continued availability and long-term supply chain stability. This part is recommended for new designs and ongoing production requirements where sustained component availability is critical. The Tape & Reel packaging format is optimized for automated assembly processes and high-volume manufacturing environments.

For CD4031BPW Selection: The CD4031BPW remains suitable for applications where existing inventory is available and Last Time Buy stock has been secured. Tube packaging is appropriate for lower-volume applications, prototyping, or manual assembly processes.

Both parts maintain identical ROHS3 compliance, MSL Level 1 rating, and REACH unaffected status, ensuring regulatory equivalence across all applications.

Frequently Asked Questions (FAQ)

Q: Are CD4031BPW and CD4031BPWR electrically identical?

A: Yes. Both parts are manufactured by Texas Instruments with identical logic function, electrical specifications, and operating parameters. They share the same base product number (CD4031) and deliver equivalent performance across all specified voltage and temperature ranges.

Q: What is the difference between these two part numbers?

A: The primary difference is packaging format. CD4031BPW is supplied in Tube packaging, while CD4031BPWR is supplied in Tape & Reel (TR) format. Both use the 16-TSSOP surface mount package with identical physical dimensions and pin configuration.

Q: Can I substitute CD4031BPWR for CD4031BPW in existing designs?

A: Yes, provided your assembly process can accommodate Tape & Reel packaging. The electrical and functional characteristics are identical, and the physical package dimensions are the same. Verify that your pick-and-place equipment supports TR format if transitioning from Tube packaging.

Q: Why is CD4031BPW marked as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued production of this part number. The CD4031BPWR, which maintains Active status, is the recommended path for future procurement and design continuity.

Q: Are there any compliance differences between these parts?

A: No. Both parts maintain identical ROHS3 compliance, MSL Level 1 rating, REACH unaffected status, and EAR99 export classification.

Q: What packaging considerations should I evaluate?

A: Tube packaging (CD4031BPW) is suitable for manual handling and lower-volume applications. Tape & Reel packaging (CD4031BPWR) is optimized for automated assembly lines and high-volume production. Confirm your assembly process compatibility before selecting either format.