CD4050BNS Equivalent & Substitute Parts

Part Overview

The CD4050BNS is a non-inverting buffer integrated circuit manufactured by Texas Instruments, belonging to the 4000B logic series. This device functions as a 6-element buffer with 1 bit per element and push-pull output configuration, housed in a 16-SOIC surface mount package. The CD4050BNS is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent substitute components for ongoing design requirements and production continuity.

Key Parameters

Parameter	Value
Logic Type	Buffer, Non-Inverting
Number of Elements	6
Number of Bits per Element	1
Output Type	Push-Pull
Current - Output High	8mA
Current - Output Low	48mA
Voltage - Supply	3V ~ 18V
Operating Temperature Range	-55°C ~ 125°C (TA)
Package / Case	16-SOIC (0.209", 5.30mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the CD4050BNS is determined by strict equivalence across the following critical parameters:

Functional Parameters: Logic type (non-inverting buffer), element count (6), bits per element (1), and output configuration (push-pull) must remain identical.

Electrical Parameters: Output current specifications (8mA high, 48mA low) and supply voltage range (3V ~ 18V) establish the electrical compatibility envelope.

Physical Parameters: Package type (16-SOIC) and mounting method (surface mount) ensure mechanical and assembly compatibility.

Compliance Parameters: RoHS3 compliance status must be maintained for regulatory adherence.

The CD4050BNSR meets all these criteria and qualifies as a direct substitute. The primary distinction between the main part and substitute is packaging format and product status.

Parameter Comparison

Parameter	CD4050BNS	CD4050BNSR	Match
Manufacturer	Texas Instruments	Texas Instruments	Yes
Series	4000B	4000B	Yes
Logic Type	Buffer, Non-Inverting	Buffer, Non-Inverting	Yes
Number of Elements	6	6	Yes
Number of Bits per Element	1	1	Yes
Output Type	Push-Pull	Push-Pull	Yes
Current - Output High, Low	8mA, 48mA	8mA, 48mA	Yes
Voltage - Supply	3V ~ 18V	3V ~ 18V	Yes
Operating Temperature	-55°C ~ 125°C (TA)	-55°C ~ 125°C (TA)	Yes
Package / Case	16-SOIC (0.209", 5.30mm Width)	16-SOIC (0.209", 5.30mm Width)	Yes
Mounting Type	Surface Mount	Surface Mount	Yes
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Yes
Product Status	Discontinued at DiGi Electronics	Active	Differs
Packaging Format	Standard	Tape & Reel (TR)	Differs

Engineering Selection Recommendations

The CD4050BNSR is a direct functional equivalent to the CD4050BNS. Both components share identical electrical specifications, package geometry, and compliance certifications. The CD4050BNSR maintains active product status with Texas Instruments, ensuring continued availability and supply chain reliability.

The primary distinction is packaging format: the CD4050BNSR is supplied in Tape & Reel (TR) configuration, which is standard for high-volume production environments. This packaging format does not affect electrical or mechanical compatibility.

Both parts are ROHS3 compliant and operate across the identical temperature range (-55°C ~ 125°C). The CD4050BNSR includes additional compliance documentation: REACH Unaffected status, ECCN classification (EAR99), and HTSUS code (8542.39.0001), with Moisture Sensitivity Level (MSL) rated at 1 (Unlimited).

For applications requiring the CD4050BNS, the CD4050BNSR provides full substitution capability without design modification or re-qualification.

Frequently Asked Questions (FAQ)

Q: Can the CD4050BNSR replace the CD4050BNS in existing designs?

A: Yes. The CD4050BNSR is electrically and mechanically identical to the CD4050BNS. All functional parameters, electrical specifications, and package dimensions match exactly. No circuit modifications are required.

Q: What is the difference between CD4050BNS and CD4050BNSR?

A: The primary difference is packaging format. The CD4050BNS is supplied in standard packaging, while the CD4050BNSR is supplied in Tape & Reel (TR) format. This distinction affects procurement and assembly processes but not component performance or compatibility.

Q: Why is the CD4050BNS discontinued?

A: The CD4050BNS is discontinued at DiGi Electronics. The CD4050BNSR remains in active production status with Texas Instruments, providing continued availability for this functional specification.

Q: Are there any electrical differences between these parts?

A: No. Both components have identical output current specifications (8mA high, 48mA low), supply voltage range (3V ~ 18V), operating temperature range (-55°C ~ 125°C), and all other electrical parameters.

Q: Is the 16-SOIC package identical for both parts?

A: Yes. Both the CD4050BNS and CD4050BNSR use the 16-SOIC package with 0.209" width (5.30mm). PCB footprints and assembly processes are identical.

Q: Do both parts meet RoHS compliance requirements?

A: Yes. Both the CD4050BNS and CD4050BNSR are ROHS3 compliant, meeting current environmental and regulatory standards.

Q: What is the Moisture Sensitivity Level (MSL) for the CD4050BNSR?

A: The CD4050BNSR has an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

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