SN74LVC126ADE4 Equivalent & Substitute Parts

Part Overview

The SN74LVC126ADE4 is a non-inverting buffer IC manufactured by Texas Instruments, featuring 4 elements with 1 bit per element and 3-state output capability. This device operates across a supply voltage range of 1.65V to 3.6V and is housed in a 14-SOIC package. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing design requirements and production needs.

Key Parameters

Parameter	Value
Manufacturer Part Number	SN74LVC126ADE4
Manufacturer	Texas Instruments
Series	74LVC
Logic Type	Buffer, Non-Inverting
Number of Elements	4
Number of Bits per Element	1
Output Type	3-State
Current - Output High, Low	24mA, 24mA
Voltage - Supply	1.65V ~ 3.6V
Operating Temperature	-40°C ~ 125°C (TA)
Mounting Type	Surface Mount
Package / Case	14-SOIC (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Discontinued at DiGi Electronics

Substitute Part Grouping Explanation

Substitution eligibility for the SN74LVC126ADE4 is determined by the following critical parameters:

Logic Type: Buffer, Non-Inverting
Number of Elements: 4
Number of Bits per Element: 1
Output Type: 3-State
Current - Output High, Low: 24mA, 24mA
Voltage - Supply: 1.65V ~ 3.6V (minimum requirement)
Operating Temperature: -40°C ~ 125°C (TA)
Package / Case: 14-SOIC (0.154", 3.90mm Width)
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts listed maintain these core electrical and mechanical specifications, ensuring functional and physical compatibility with the original design.

Parameter Comparison

Parameter	SN74LVC126ADE4 (Main)	SN74LVC125AD	SN74LVC126AD	74LVC126AD,118	74LVC126AS14-13
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Nexperia USA Inc.	Diodes Incorporated
Logic Type	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting
Number of Elements	4	4	4	4	4
Number of Bits per Element	1	1	1	1	1
Output Type	3-State	3-State	3-State	3-State	3-State
Current - Output High, Low	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA
Voltage - Supply	1.65V ~ 3.6V	1.65V ~ 3.6V	1.65V ~ 3.6V	1.2V ~ 3.6V	1.65V ~ 3.6V
Operating Temperature	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)
Package / Case	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Discontinued at DiGi Electronics	Active	Active	Active	Active
Inventory Availability	1095 Pcs	2100 Pcs	7557 Pcs	5426 Pcs	5100 Pcs

Engineering Selection Recommendations

SN74LVC125AD (Texas Instruments): This substitute maintains identical electrical specifications and packaging to the main part. As an active product from the original manufacturer, it provides continuity in design and supply chain reliability. Recommended for designs requiring manufacturer consistency.

SN74LVC126AD (Texas Instruments): This manufacturer-recommended substitute is the direct active replacement for the discontinued SN74LVC126ADE4. It offers the highest inventory availability (7557 Pcs) and maintains all critical electrical and mechanical parameters. This is the primary recommended substitute.

74LVC126AD,118 (Nexperia USA Inc.): This substitute extends the supply voltage range to 1.2V ~ 3.6V, providing enhanced low-voltage operation capability while maintaining all other specifications. Suitable for applications requiring extended voltage flexibility. Available in Tape & Reel packaging.

74LVC126AS14-13 (Diodes Incorporated): This substitute maintains full electrical and mechanical compatibility with the original part. It provides an alternative sourcing option from a different manufacturer, supporting supply chain diversification. Available in Tape & Reel packaging.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC125AD be used as a direct replacement for SN74LVC126ADE4?

A: SN74LVC125AD is electrically and mechanically compatible with SN74LVC126ADE4, sharing identical logic type, element count, output type, current ratings, voltage supply range, operating temperature, and package specifications. Both are ROHS3 compliant with MSL 1 rating.

Q: What is the primary difference between the substitute parts?

A: The primary differences are manufacturer identity and product status. SN74LVC126AD and SN74LVC125AD are Texas Instruments products, while 74LVC126AD,118 is from Nexperia USA Inc. and 74LVC126AS14-13 is from Diodes Incorporated. All maintain identical core electrical specifications. The 74LVC126AD,118 variant offers extended supply voltage range down to 1.2V.

Q: Are all substitutes available in the same package?

A: All substitutes use the 14-SOIC package with 0.154" (3.90mm) width. Packaging formats differ: SN74LVC126ADE4 and SN74LVC125AD are supplied in Tube format, while 74LVC126AD,118 and 74LVC126AS14-13 are supplied in Tape & Reel (TR) format.

Q: Which substitute has the best inventory availability?

A: SN74LVC126AD offers the highest inventory availability at 7557 Pcs, followed by 74LVC126AD,118 at 5426 Pcs and 74LVC126AS14-13 at 5100 Pcs.

Q: Are all substitutes RoHS3 compliant?

A: Yes, all substitute parts listed are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the compliance profile of the original SN74LVC126ADE4.

Q: Can I use 74LVC126AD,118 in applications requiring minimum 1.65V supply voltage?

A: Yes. The 74LVC126AD,118 operates across 1.2V ~ 3.6V supply voltage range, which encompasses the 1.65V ~ 3.6V requirement of the original part. It is fully compatible for this application.

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