SN74AUP1G126DPWR Equivalent & Substitute Parts

Part Overview

The SN74AUP1G126DPWR is a non-inverting buffer logic IC manufactured by Texas Instruments, designed for low-voltage applications requiring 3-state output control. This single-element buffer operates across a supply voltage range of 0.8V to 3.6V and is housed in a 5-X2SON (0.8x0.8) surface mount package. The device is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified based on matching functional characteristics, electrical parameters, and mechanical compatibility within the 74AUP logic family.

Key Parameters

Parameter	Value
Logic Type	Buffer, Non-Inverting
Number of Elements	1
Number of Bits per Element	1
Output Type	3-State
Current - Output High, Low	4mA, 4mA
Voltage - Supply	0.8V ~ 3.6V
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	4-XFDFN Exposed Pad
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SN74AUP1G126DPWR are identified based on strict equivalence of the following parameters:

Logic Type: Buffer, Non-Inverting
Number of Elements: 1
Number of Bits per Element: 1
Output Type: 3-State
Current - Output High, Low: 4mA, 4mA
Voltage - Supply: 0.8V ~ 3.6V
Mounting Type: Surface Mount
Package / Case: 4-XFDFN Exposed Pad
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Parts meeting these criteria are classified as direct functional equivalents. Variations in operating temperature range, supplier device package designation, or manufacturer do not affect functional substitutability when all electrical and mechanical parameters remain constant.

Parameter Comparison

Parameter	SN74AUP1G126DPWR (TI)	SN74AUP1G125DPWR (TI)	74AUP1G126FS3-7 (Diodes)
Manufacturer	Texas Instruments	Texas Instruments	Diodes Incorporated
Logic Type	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting
Number of Elements	1	1	1
Number of Bits per Element	1	1	1
Output Type	3-State	3-State	3-State
Current - Output High, Low	4mA, 4mA	4mA, 4mA	4mA, 4mA
Voltage - Supply	0.8V ~ 3.6V	0.8V ~ 3.6V	0.8V ~ 3.6V
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 125°C (TA)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	4-XFDFN Exposed Pad	4-XFDFN Exposed Pad	4-XFDFN Exposed Pad
Supplier Device Package	5-X2SON (0.8x0.8)	5-X2SON (0.8x0.8)	X2-DFN0808-4
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99

Engineering Selection Recommendations

All identified substitute parts maintain Active product status and full compliance with RoHS3 and REACH regulations. Selection between SN74AUP1G126DPWR, SN74AUP1G125DPWR, and 74AUP1G126FS3-7 is determined by availability, supply chain requirements, and manufacturer preference.

The 74AUP1G126FS3-7 from Diodes Incorporated offers an extended operating temperature range of -40°C to 125°C compared to the Texas Instruments variants at -40°C to 85°C. This extended range may be advantageous in applications requiring higher temperature operation, though all parts are electrically and mechanically equivalent at standard operating conditions.

Inventory availability should be considered: SN74AUP1G126DPWR (3,724 pcs), SN74AUP1G125DPWR (5,735 pcs), and 74AUP1G126FS3-7 (25,100 pcs).

Frequently Asked Questions (FAQ)

Q: Can SN74AUP1G125DPWR replace SN74AUP1G126DPWR?

A: Yes. Both parts are Texas Instruments 74AUP series non-inverting buffers with identical electrical specifications, output characteristics, supply voltage range, and package configuration. The difference in part number reflects internal design variations that do not affect functional equivalence.

Q: Is 74AUP1G126FS3-7 from Diodes Incorporated a direct substitute?

A: Yes. The 74AUP1G126FS3-7 meets all electrical and mechanical requirements of the SN74AUP1G126DPWR. The extended operating temperature range (-40°C to 125°C versus -40°C to 85°C) represents an enhancement rather than a limitation. Supplier device package designations (5-X2SON versus X2-DFN0808-4) refer to the same physical 4-XFDFN Exposed Pad configuration.

Q: Are there package compatibility concerns when substituting these parts?

A: No. All three parts use the 4-XFDFN Exposed Pad package with identical mechanical dimensions (0.8x0.8mm). PCB footprints and assembly processes remain unchanged across substitutions.

Q: What compliance certifications apply to all substitute parts?

A: All parts are ROHS3 compliant, REACH unaffected, classified as EAR99 for export control, and carry MSL 1 (Unlimited) moisture sensitivity rating. Regulatory and environmental compliance is maintained across all substitutes.

Q: Does operating temperature range affect substitutability?

A: Operating temperature range does not affect functional substitutability when the application operates within the overlapping range of -40°C to 85°C. The 74AUP1G126FS3-7 extended range to 125°C provides additional capability for high-temperature applications but does not restrict use in standard temperature environments.

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