CD4028BPW Equivalent & Substitute Parts

Part Overview

The CD4028BPW is a logic decoder integrated circuit manufactured by Texas Instruments, classified as a 1 x 4:10 decoder in the 4000B series. This component is designated as Last Time Buy, indicating discontinued production with limited availability. The CD4028BPW is packaged in 16-TSSOP surface mount configuration and operates across a wide voltage supply range of 3V to 18V with an operating temperature range of -55°C to 125°C. Identifying equivalent substitute parts is necessary due to the Last Time Buy status and to ensure continued supply chain access for new designs and production requirements.

Substiute Parts

CD4028BPW

Texas InstrumentsIn Stock: 2781CD4028BPW Datasheet

Current PartRFQ

CD4028BPWR

Texas InstrumentsIn Stock: 3397CD4028BPWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CD4028BPW are identified based on strict electrical and mechanical parameter matching. The primary substitution criterion is functional equivalence: both the main part and substitute must be 1 x 4:10 decoder circuits with identical circuit configuration and independent circuit count. Electrical parameters including output current specifications (6.8mA high and low), voltage supply range (3V to 18V), and operating temperature range (-55°C to 125°C) must be identical. Mechanical compatibility requires matching package type (16-TSSOP) and mounting method (surface mount). Manufacturing compliance certifications including RoHS3 compliance, REACH status, and moisture sensitivity level must align. The substitute part CD4028BPWR meets all these criteria while offering Active product status and improved packaging availability through Cut Tape and Digi-Reel distribution options.

Parameter Comparison

Engineering Selection Recommendations

The CD4028BPWR is the manufacturer-recommended substitute for the CD4028BPW. Both parts are manufactured by Texas Instruments and share identical electrical specifications, circuit configuration, and package geometry. The primary distinction is product status: the CD4028BPW is Last Time Buy with limited availability, while the CD4028BPWR maintains Active status with ongoing production and improved supply chain accessibility. Both parts meet ROHS3 compliance and REACH requirements, ensuring regulatory alignment for current and future applications. The CD4028BPWR offers superior packaging flexibility through Cut Tape and Digi-Reel distribution, supporting both prototype and production volume requirements. For new designs or production continuity, the CD4028BPWR is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Are CD4028BPW and CD4028BPWR electrically identical? A: Yes. Both parts are 1 x 4:10 decoder circuits with identical output current specifications (6.8mA), voltage supply range (3V to 18V), and operating temperature range (-55°C to 125°C).

Q: Can CD4028BPWR be used as a direct replacement for CD4028BPW in existing designs? A: Yes. The parts share identical package type (16-TSSOP), mounting method (surface mount), and electrical characteristics, enabling direct substitution without circuit modification.

Q: What is the difference between Tube and Cut Tape packaging? A: Tube packaging is used for smaller quantities and manual handling, while Cut Tape and Digi-Reel packaging supports automated assembly processes and higher production volumes. Both packaging formats contain the same component.

Q: Why is CD4028BPW designated as Last Time Buy? A: Last Time Buy status indicates the manufacturer has discontinued production. This designation allows customers a final opportunity to purchase existing inventory before the part becomes unavailable.

Q: Are there any compliance differences between the two parts? A: No. Both CD4028BPW and CD4028BPWR are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity level (MSL 1 - Unlimited).

Q: Which part should be specified for new production designs? A: CD4028BPWR should be specified for new designs due to its Active product status and guaranteed long-term availability.