CD4511BPW Equivalent & Substitute Parts

Part Overview

The CD4511BPW is a 7-segment LED driver IC manufactured by Texas Instruments, designed to convert BCD (Binary Coded Decimal) input signals into outputs suitable for driving common-cathode LED displays. This Surface Mount device operates across a wide voltage range of 3V to 18V with minimal supply current of 40 nA, making it suitable for battery-powered and low-power applications.

The CD4511BPW is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production, maintenance, and new builds.

Substiute Parts

CD4511BPW

Texas InstrumentsIn Stock: 1437CD4511BPW Datasheet

Current PartRFQ

CD4511BPWR

Texas InstrumentsIn Stock: 26756CD4511BPWR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD4511BPW is determined by strict equivalence across the following critical parameters:

• Functional Interface: BCD input configuration for 7-segment LED display driving
• Electrical Specifications: Voltage supply range (3V ~ 18V), supply current (40 nA), and operating temperature range (-55°C ~ 125°C)
• Physical Package: 16-TSSOP form factor with identical pin configuration and mechanical dimensions (0.173", 4.40mm Width)
• Compliance Standards: ROHS3 compliance, MSL Level 1, and REACH unaffected status
• Base Product Number: CD4511 series designation

The CD4511BPWR meets all substitution criteria as a direct equivalent, differing only in packaging format (Cut Tape & Digi-Reel versus Tube) and product status (Active versus Discontinued).

Parameter Comparison

Engineering Selection Recommendations

The CD4511BPWR is a direct functional and electrical equivalent to the CD4511BPW. Both parts share identical electrical specifications, pin configuration, and package dimensions. The primary distinction is product status: CD4511BPWR maintains Active status with higher inventory availability (26,700 pcs), while CD4511BPW is Discontinued.

For new designs and component replenishment, CD4511BPWR is the appropriate selection. Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, ensuring compatibility with current manufacturing and environmental standards. The difference in packaging format (Tube versus Cut Tape & Digi-Reel) does not affect electrical or mechanical performance and is determined by procurement and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can CD4511BPWR be used as a direct replacement for CD4511BPW?

A: Yes. Both parts are electrically and mechanically identical. They share the same BCD-to-7-segment interface, voltage range (3V ~ 18V), operating temperature range (-55°C ~ 125°C), and 16-TSSOP package configuration. The only differences are product status and packaging format.

Q: What is the difference between Tube and Cut Tape packaging?

A: Tube packaging contains loose components in a plastic tube, while Cut Tape & Digi-Reel packaging provides components on continuous tape wound on a reel. Both formats contain identical components; the choice depends on assembly equipment compatibility and procurement volume requirements.

Q: Are there any compliance or certification differences between these parts?

A: No. Both CD4511BPW and CD4511BPWR maintain identical ROHS3 compliance, MSL Level 1 rating, and REACH unaffected status.

Q: Why is CD4511BPW discontinued?

A: Product discontinuation is a manufacturer decision unrelated to technical performance or reliability. CD4511BPWR remains in active production and is the recommended source for ongoing component needs.

Q: Will CD4511BPWR work in existing designs using CD4511BPW?

A: Yes, without modification. Pin configuration, electrical characteristics, and package dimensions are identical, ensuring drop-in compatibility in PCB layouts and circuit designs.