CD4050BDE4 Equivalent & Substitute Parts

Part Overview

The CD4050BDE4 is a non-inverting buffer IC from Texas Instruments, part of the 4000B logic series. This component provides 6 independent buffer elements with push-pull outputs, designed for signal conditioning and level shifting applications across a wide voltage range of 3V to 18V. The CD4050BDE4 is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing production and maintenance applications. Suitable alternatives maintain the same functional characteristics, pin configuration, and electrical performance within the 16-SOIC package format.

Key Parameters

Parameter	Value
Manufacturer Part Number	CD4050BDE4
Manufacturer	Texas Instruments
Logic Type	Buffer, Non-Inverting
Number of Elements	6
Output Type	Push-Pull
Current - Output High, Low	8mA, 48mA
Voltage - Supply	3V ~ 18V
Operating Temperature	-55°C ~ 125°C (TA)
Package / Case	16-SOIC (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant
Product Status	Discontinued at DiGi Electronics

Substitute Part Grouping Explanation

Substitution of the CD4050BDE4 is determined by the following critical parameters:

Logic Type: Buffer, Non-Inverting (6 elements, 1 bit per element)
Output Configuration: Push-Pull output
Package Format: 16-SOIC with 0.154" (3.90mm) width
Supply Voltage Range: 3V to 18V operation
Pin Compatibility: Identical pinout required
RoHS Compliance: ROHS3 Compliant

Substitute parts must maintain identical or compatible electrical specifications for output current, supply voltage, and operating temperature ranges. Output current specifications may vary within acceptable limits for the application. Package dimensions and mounting type must be equivalent to ensure PCB compatibility without redesign.

Parameter Comparison

Parameter	CD4050BDE4 (TI)	MC14050BDR2G (onsemi)	HEF4050BT,653 (Nexperia)	NLV14050BDR2G (onsemi)	TC4050BF(EL,N,F) (Toshiba)
Logic Type	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting
Number of Elements	6	6	6	6	6
Output Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Current - Output High, Low	8mA, 48mA	10mA, 40mA	3mA, 20mA	10mA, 40mA	8mA, 48mA
Voltage - Supply	3V ~ 18V	3V ~ 18V	3V ~ 15V	3V ~ 18V	3V ~ 18V
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-40°C ~ 85°C	-55°C ~ 125°C	-40°C ~ 85°C
Package / Case	16-SOIC (0.154")	16-SOIC (0.154")	16-SOIC (0.154")	16-SOIC (0.154")	16-SOIC (0.209")
Product Status	Discontinued	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant

Engineering Selection Recommendations

MC14050BDR2G (onsemi) and NLV14050BDR2G (onsemi) are the primary substitutes for the CD4050BDE4. Both parts maintain identical supply voltage range (3V to 18V), operating temperature range (-55°C to 125°C), and package dimensions (16-SOIC, 0.154" width). Output current specifications differ slightly but remain functionally compatible. Both are active products with ROHS3 compliance and unlimited moisture sensitivity rating. NLV14050BDR2G includes AEC-Q100 automotive qualification, suitable for applications requiring automotive-grade components.

TC4050BF(EL,N,F) (Toshiba) is a functional equivalent with identical output current characteristics (8mA, 48mA) and supply voltage range. However, the package width differs (0.209" versus 0.154"), requiring PCB layout verification before substitution. Operating temperature range is reduced to -40°C to 85°C.

HEF4050BT,653 (Nexperia) maintains the correct package dimensions but has reduced output current capability (3mA, 20mA) and limited supply voltage range (3V to 15V). This part is suitable only for applications with lower current requirements and maximum supply voltage of 15V.

MC14050BDG (Fairchild Semiconductor) is listed as an active substitute with limited technical specification data available. Verification of electrical characteristics and package format is required before selection.

Frequently Asked Questions (FAQ)

Q: Can MC14050BDR2G directly replace CD4050BDE4 without PCB modification?

A: Yes. MC14050BDR2G maintains identical pinout, package dimensions (16-SOIC, 0.154" width), and electrical specifications. No PCB redesign is required.

Q: What is the difference between MC14050BDR2G and NLV14050BDR2G?

A: Both parts are functionally equivalent with identical electrical specifications. NLV14050BDR2G includes AEC-Q100 automotive qualification and is packaged in Tape & Reel format, while MC14050BDR2G is available in Cut Tape and Digi-Reel packaging. Selection depends on application requirements and packaging preference.

Q: Is TC4050BF(EL,N,F) compatible with existing PCB layouts?

A: TC4050BF(EL,N,F) has a wider package body (0.209" versus 0.154"), which may cause clearance issues on existing PCBs. PCB layout verification is required before substitution.

Q: Can HEF4050BT,653 be used in all applications where CD4050BDE4 is specified?

A: HEF4050BT,653 has reduced output current (3mA, 20mA versus 8mA, 48mA) and limited supply voltage range (3V to 15V versus 3V to 18V). Use only in applications with lower current requirements and maximum supply voltage of 15V.

Q: What is the operating temperature difference between substitutes?

A: CD4050BDE4, MC14050BDR2G, and NLV14050BDR2G operate from -55°C to 125°C. TC4050BF(EL,N,F) and HEF4050BT,653 operate from -40°C to 85°C. Select based on application temperature requirements.

Q: Are all substitutes RoHS compliant?

A: Yes. All listed substitutes are RoHS compliant. MC14050BDR2G, NLV14050BDR2G, and CD4050BDE4 are ROHS3 compliant. TC4050BF(EL,N,F) and HEF4050BT,653 are RoHS compliant.

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