74LVC126APW/DG,118 Equivalent & Substitute Parts

Part Overview

The 74LVC126APW/DG,118 is a non-inverting buffer IC from NXP Semiconductors, featuring 4 elements with 1 bit per element and 3-state output capability. This logic buffer operates across a supply voltage range of 1.2V to 3.6V and is housed in a 14-TSSOP surface mount package. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	74LVC126APW/DG,118
Manufacturer	NXP Semiconductors
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	1.2V ~ 3.6V
Operating Temperature	-40°C ~ 125°C (TA)
Package / Case	14-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the 74LVC126APW/DG,118 is determined by strict equivalence across the following critical parameters:

Logic Type: Buffer, Non-Inverting
Number of Elements: 4
Number of Bits per Element: 1
Output Type: 3-State
Output Current: 24mA (High and Low)
Package / Case: 14-TSSOP
Mounting Type: Surface Mount
RoHS Compliance: ROHS3 Compliant

Substitute parts must maintain compatibility within these electrical and mechanical specifications. Voltage supply ranges and operating temperature ranges may vary within acceptable design margins, provided the substitute part's range encompasses or exceeds the original specification requirements.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Elements	Output Type	Current (mA)	Voltage Supply (V)	Temp Range (°C)	Package	Product Status
74LVC126APW/DG,118	NXP Semiconductors	Buffer, Non-Inverting	4	3-State	24, 24	1.2 ~ 3.6	-40 ~ 125	14-TSSOP	Obsolete
74LVC125APW/AUJ	NXP USA Inc.	Buffer, Non-Inverting	4	3-State	24, 24	1.2 ~ 3.6	-40 ~ 125	14-TSSOP	Active
74LCX126MTCX	Fairchild Semiconductor	Buffer, Non-Inverting	4	3-State	24, 24	2.0 ~ 3.6	-40 ~ 85	14-TSSOP	Active
74LVC126AT14-13	Diodes Incorporated	Buffer, Non-Inverting	4	3-State	24, 24	1.65 ~ 5.5	-40 ~ 125	14-TSSOP	Active
CLVC125AQPWRG4Q1	Texas Instruments	Buffer, Non-Inverting	4	3-State	24, 24	1.65 ~ 3.6	-40 ~ 125	14-TSSOP	Active
CLVC126AQPWRG4Q1	Texas Instruments	Buffer, Non-Inverting	4	3-State	24, 24	1.65 ~ 3.6	-40 ~ 125	14-TSSOP	Active
SN74LVC125AIPWREP	Texas Instruments	Buffer, Non-Inverting	4	3-State	24, 24	1.65 ~ 3.6	-40 ~ 85	14-TSSOP	Active
SN74LVC125AQPWRQ1	Texas Instruments	Buffer, Non-Inverting	4	3-State	24, 24	1.65 ~ 3.6	-40 ~ 125	14-TSSOP	Active
SN74LVC126APW	Texas Instruments	Buffer, Non-Inverting	4	3-State	24, 24	1.65 ~ 3.6	-40 ~ 125	14-TSSOP	Active
SN74LVC126APWR	Texas Instruments	Buffer, Non-Inverting	4	3-State	24, 24	1.65 ~ 3.6	-40 ~ 125	14-TSSOP	Active
SN74LVC126APWRG4	Texas Instruments	Buffer, Non-Inverting	4	3-State	24, 24	1.65 ~ 3.6	-40 ~ 125	14-TSSOP	Discontinued at DiGi Electronics

Engineering Selection Recommendations

All listed substitute parts maintain active product status with NXP USA Inc., Fairchild Semiconductor, Diodes Incorporated, and Texas Instruments, ensuring long-term availability and manufacturing support. The 74LVC125APW/AUJ from NXP USA Inc. provides the closest functional equivalence as an active NXP product within the same 74LVC series.

For applications requiring extended voltage supply range compatibility, the 74LVC126AT14-13 from Diodes Incorporated supports 1.65V to 5.5V operation while maintaining the full -40°C to 125°C temperature range and ROHS3 compliance.

Texas Instruments offers multiple qualified alternatives, including automotive-grade options (CLVC125AQPWRG4Q1 and CLVC126AQPWRG4Q1) with AEC-Q100 qualification for applications requiring automotive-level reliability. Standard commercial-grade options (SN74LVC126APWR, SN74LVC126APW) provide high inventory availability with identical electrical specifications.

The 74LCX126MTCX from Fairchild Semiconductor operates within a reduced temperature range (-40°C to 85°C) and minimum supply voltage of 2.0V, suitable for applications not requiring the full 1.2V lower limit of the original part.

Frequently Asked Questions (FAQ)

Q: Can the 74LVC125APW/AUJ directly replace the 74LVC126APW/DG,118?

A: Yes. Both parts are non-inverting buffers with 4 elements, 1 bit per element, 3-state output, 24mA output current, 14-TSSOP package, and identical operating temperature range (-40°C to 125°C). The 74LVC125APW/AUJ is an active product from NXP USA Inc., providing direct functional equivalence.

Q: What is the difference between 74LVC and 74LCX series parts?

A: Both series provide non-inverting buffer functionality in 14-TSSOP packages with identical output current specifications. The 74LCX126MTCX operates with a minimum supply voltage of 2.0V versus 1.2V for 74LVC parts, and supports a reduced operating temperature range of -40°C to 85°C. Selection depends on application voltage and temperature requirements.

Q: Are Texas Instruments automotive-grade parts (CLVC125AQPWRG4Q1, CLVC126AQPWRG4Q1) compatible with standard commercial applications?

A: Yes. Automotive-grade parts with AEC-Q100 qualification meet or exceed commercial-grade specifications and are fully compatible with standard applications. These parts provide enhanced reliability margins and are suitable for any application requiring the specified electrical and thermal characteristics.

Q: What packaging options are available for substitute parts?

A: All substitute parts are available in 14-TSSOP surface mount packages. Packaging formats vary by manufacturer and distributor, including Tape & Reel (TR), Cut Tape (CT) & Digi-Reel®, Tube, and Bulk options. Verify packaging availability with your component supplier based on procurement volume requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited), ensuring compatibility with modern manufacturing and environmental standards.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message