74LVC2G126GS,115 Equivalent & Substitute Parts

Part Overview

The 74LVC2G126GS,115 is a non-inverting buffer logic IC manufactured by Nexperia USA Inc., configured as a 2-element buffer with 1 bit per element and 3-state output capability. This device operates across a supply voltage range of 1.65V to 5.5V and is housed in an 8-XSON (1.35x1) surface mount package. The part is currently in active production status with 5,239 units in stock inventory.

Substitute parts are necessary when the 74LVC2G126GS,115 becomes unavailable, when alternative packaging formats are required for specific PCB layouts, or when design requirements call for single-element buffer configurations instead of dual-element configurations.

Key Parameters

Parameter	Value
Manufacturer	Nexperia USA Inc.
Logic Type	Buffer, Non-Inverting
Number of Elements	2
Number of Bits per Element	1
Output Type	3-State
Current - Output High, Low	32mA, 32mA
Voltage - Supply	1.65V ~ 5.5V
Operating Temperature	-40°C ~ 125°C (TA)
Mounting Type	Surface Mount
Package / Case	8-XFDFN
Supplier Device Package	8-XSON (1.35x1)
Product Status	Active
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution logic for the 74LVC2G126GS,115 is based on the following allowed parameters:

Electrical Compatibility Requirements:

Logic Type: Buffer, Non-Inverting
Output Type: 3-State
Current - Output High, Low: 32mA, 32mA
Voltage - Supply: 1.65V ~ 5.5V
Operating Temperature: -40°C ~ 125°C (TA)

Mechanical Compatibility Requirements:

Mounting Type: Surface Mount
Package / Case: 8-XFDFN
Supplier Device Package: 8-XSON (1.35x1)

Compliance Requirements:

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into two categories:

Category 1: Direct Functional Equivalents (2-Element Buffers) Parts with identical element count (2 elements) and package format (8-XSON 1.35x1), maintaining full pin-for-pin compatibility.

Category 2: Functional Alternatives (1-Element Buffers) Parts with reduced element count (1 element) in alternative package formats (6-XSON variants). These require circuit redesign to accommodate single-element configuration but maintain identical electrical parameters and supply voltage range.

Parameter Comparison

Part Number	Manufacturer	Elements	Package	Supplier Device Package	Product Status	Inventory (Pcs)	Output Current (mA)	Supply Voltage	Operating Temp
74LVC2G126GS,115	Nexperia USA Inc.	2	8-XFDFN	8-XSON (1.35x1)	Active	5,239	32/32	1.65V ~ 5.5V	-40°C ~ 125°C
74LVC2G125GF,115	Nexperia USA Inc.	2	8-XFDFN	8-XSON (1.35x1)	Obsolete	5,911	32/32	1.65V ~ 5.5V	-40°C ~ 125°C
74LVC2G125GN,115	NXP Semiconductors	2	8-XFDFN	8-XSON (1.2x1)	Active	2,100	32/32	1.65V ~ 5.5V	-40°C ~ 125°C
74LVC1G125GF,132	Nexperia USA Inc.	1	6-XFDFN	6-XSON, SOT891 (1x1)	Obsolete	5,587	32/32	1.65V ~ 5.5V	-40°C ~ 125°C
74LVC1G125GM,115	Nexperia USA Inc.	1	6-XFDFN	6-XSON, SOT886 (1.45x1)	Active	17,701	32/32	1.65V ~ 5.5V	-40°C ~ 125°C
74LVC1G125GM,132	Nexperia USA Inc.	1	6-XFDFN	6-XSON, SOT886 (1.45x1)	Active	20,139	32/32	1.65V ~ 5.5V	-40°C ~ 125°C
74LVC1G125GM-Q100X	Nexperia USA Inc.	1	6-XFDFN	6-XSON, SOT886 (1.45x1)	Active	54,120	32/32	1.65V ~ 5.5V	-40°C ~ 125°C
74LVC1G125GS,132	Nexperia USA Inc.	1	6-XFDFN	6-XSON, SOT1202 (1x1)	Active	2,609	32/32	1.65V ~ 5.5V	-40°C ~ 125°C
74LVC1G126GM,115	Nexperia USA Inc.	1	6-XFDFN	6-XSON, SOT886 (1.45x1)	Active	10,318	32/32	1.65V ~ 5.5V	-40°C ~ 125°C
74LVC1G126GM,132	Nexperia USA Inc.	1	6-XFDFN	6-XSON, SOT886 (1.45x1)	Active	5,122	32/32	1.65V ~ 5.5V	-40°C ~ 125°C
74LVC1G126GS,132	Nexperia USA Inc.	1	6-XFDFN	6-XSON, SOT1202 (1x1)	Active	5,812	32/32	1.65V ~ 5.5V	-40°C ~ 125°C

Engineering Selection Recommendations

For Direct Pin-Compatible Replacement (2-Element Configuration):

The 74LVC2G125GN,115 is the preferred active substitute when the 74LVC2G126GS,115 becomes unavailable. Both parts maintain identical electrical specifications and 2-element buffer configuration. The 74LVC2G125GN,115 differs only in package dimensions (8-XSON 1.2x1 versus 1.35x1), which may require PCB layout verification but does not affect electrical function. This part is currently in active production with 2,100 units in stock.

The 74LVC2G125GF,115 provides an alternative 2-element buffer with matching electrical parameters and identical package format (8-XSON 1.35x1). However, this part carries obsolete product status and should only be selected if existing inventory is available and long-term supply is not required.

For Single-Element Buffer Configurations:

When circuit redesign permits single-element buffer operation, the following active parts provide equivalent electrical performance:

74LVC1G125GM,115 and 74LVC1G125GM,132: Active status with high inventory (17,701 and 20,139 units respectively). Package format 6-XSON SOT886 (1.45x1).
74LVC1G125GM-Q100X: Active status with highest inventory (54,120 units). Includes AEC-Q100 automotive qualification. Package format 6-XSON SOT886 (1.45x1).
74LVC1G125GS,132: Active status with compact package format 6-XSON SOT1202 (1x1), suitable for space-constrained layouts.
74LVC1G126GM,115 and 74LVC1G126GM,132: Active status with 6-XSON SOT886 package format.
74LVC1G126GS,132: Active status with compact 6-XSON SOT1202 package format.

All single-element alternatives maintain ROHS3 compliance, MSL 1 rating, and identical supply voltage and operating temperature specifications.

Frequently Asked Questions (FAQ)

Q: Can the 74LVC2G126GS,115 be directly replaced with a 1-element buffer part?

A: Direct replacement is not possible without circuit modification. The 74LVC2G126GS,115 contains 2 independent buffer elements, while single-element alternatives (74LVC1G125 and 74LVC1G126 series) contain only 1 element. Circuit redesign is required to accommodate the reduced element count.

Q: What is the difference between 74LVC2G125 and 74LVC2G126 series?

A: Both series provide 2-element non-inverting buffers with 3-state output, identical electrical parameters, and matching supply voltage ranges. The distinction lies in internal control logic architecture, which does not affect basic buffer functionality for standard applications.

Q: Are package dimension variations between 8-XSON (1.35x1) and 8-XSON (1.2x1) significant?

A: Package dimension differences require PCB layout verification. The 74LVC2G125GN,115 with 8-XSON (1.2x1) dimensions may not be compatible with existing PCB footprints designed for 8-XSON (1.35x1). Consult PCB design files and component datasheets before substitution.

Q: Which single-element substitute offers the best inventory availability?

A: The 74LVC1G125GM-Q100X provides the highest inventory level at 54,120 units. This part includes AEC-Q100 automotive qualification and maintains all electrical specifications of the main part.

Q: Do all substitute parts maintain ROHS3 compliance?

A: All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of the 74LVC2G126GS,115.

Q: What is the significance of product status (Active vs. Obsolete)?

A: Active status indicates current production and long-term supply availability. Obsolete status indicates discontinued production; these parts should only be selected if existing inventory is available and supply continuity is not required for future production runs.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message