74LVC2G125HD4-7 Equivalent & Substitute Parts

Part Overview

The 74LVC2G125HD4-7 is a non-inverting buffer logic IC manufactured by Diodes Incorporated, featuring 2 elements 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 maintains active product status with full RoHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, manufacturing discontinuation, or specific package requirements in production environments.

Key Parameters

Parameter	Specification
Manufacturer Part Number	74LVC2G125HD4-7
Manufacturer	Diodes Incorporated
Series	74LVC
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)
Package / Case	8-XFDFN
Supplier Device Package	X2-DFN2010-8
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the 74LVC2G125HD4-7 are classified into two functional categories based on element count and package compatibility:

Category 1: Direct 2-Element Equivalents (8-Pin DFN Package) These parts maintain identical element count (2 elements) and package form factor (8-XFDFN), differing only in supplier device package designations. All share the same electrical specifications: 32mA output current, 1.65V–5.5V supply voltage range, and -40°C to 125°C operating temperature.

74LVC2G125HK3-7 (X2-DFN1410-8)
74LVC2G125RA3-7 (X2-DFN1210-8)
74LVC2G126HD4-7 (X2-DFN2010-8, Base Product 74LVC2G126)
74LVC2G126GF,115 (referenced in substitute list)

Category 2: Single-Element Equivalents (6-Pin DFN Package) These parts reduce element count to 1 element per device, requiring dual-device implementation to match the original 2-element configuration. All maintain identical electrical specifications and operate within the same voltage and temperature parameters.

74LVC1G125FW4-7 (X2-DFN1010-6)
74LVC1G125FW5-7 (X1-DFN1010-6)
74LVC1G125FX4-7 (X2-DFN1409-6)
74LVC1G125FZ4-7 (X2-DFN1410-6)
74LVC1G126FW4-7 (X2-DFN1010-6, Base Product 74LVC1G126)
74LVC1G126FW5-7 (X1-DFN1010-6, Base Product 74LVC1G126)
74LVC1G126FX4-7 (X2-DFN1409-6, Base Product 74LVC1G126)

Substitution Criteria:

Voltage supply range: 1.65V ~ 5.5V (all equivalents)
Output current: 32mA high, 32mA low (all equivalents)
Operating temperature: -40°C ~ 125°C (all equivalents)
Logic type: Buffer, Non-Inverting (all equivalents)
Output configuration: 3-State (all equivalents)
RoHS3 compliance and MSL Level 1 (all equivalents)

Parameter Comparison

Part Number	Base Product	Elements	Package	Supplier Device Package	Supply Voltage	Output Current (H/L)	Temp Range	Inventory (Pcs)
74LVC2G125HD4-7	74LVC2G125	2	8-XFDFN	X2-DFN2010-8	1.65V ~ 5.5V	32mA, 32mA	-40°C ~ 125°C	3000
74LVC2G125HK3-7	74LVC2G125	2	8-XFDFN	X2-DFN1410-8	1.65V ~ 5.5V	32mA, 32mA	-40°C ~ 125°C	1015
74LVC2G125RA3-7	74LVC2G125	2	8-XFDFN	X2-DFN1210-8	1.65V ~ 5.5V	32mA, 32mA	-40°C ~ 125°C	6089
74LVC2G126HD4-7	74LVC2G126	2	8-XFDFN	X2-DFN2010-8	1.65V ~ 5.5V	32mA, 32mA	-40°C ~ 125°C	4833
74LVC1G125FW4-7	74LVC1G125	1	6-XFDFN	X2-DFN1010-6	1.65V ~ 5.5V	32mA, 32mA	-40°C ~ 125°C	10200
74LVC1G125FW5-7	74LVC1G125	1	6-XFDFN	X1-DFN1010-6	1.65V ~ 5.5V	32mA, 32mA	-40°C ~ 125°C	5957
74LVC1G125FX4-7	74LVC1G125	1	6-XFDFN	X2-DFN1409-6	1.65V ~ 5.5V	32mA, 32mA	-40°C ~ 125°C	990
74LVC1G125FZ4-7	74LVC1G125	1	6-XFDFN	X2-DFN1410-6	1.65V ~ 5.5V	32mA, 32mA	-40°C ~ 125°C	35100
74LVC1G126FW4-7	74LVC1G126	1	6-XFDFN	X2-DFN1010-6	1.65V ~ 5.5V	32mA, 32mA	-40°C ~ 125°C	30100
74LVC1G126FW5-7	74LVC1G126	1	6-XFDFN	X1-DFN1010-6	1.65V ~ 5.5V	32mA, 32mA	-40°C ~ 125°C	6070
74LVC1G126FX4-7	74LVC1G126	1	6-XFDFN	X2-DFN1409-6	1.65V ~ 5.5V	32mA, 32mA	-40°C ~ 125°C	766

Engineering Selection Recommendations

For Direct Pin-Compatible Replacement (Same PCB Layout): Select 74LVC2G125HK3-7 or 74LVC2G125RA3-7 when maintaining the 8-pin DFN package footprint is required. Both parts are active products with RoHS3 compliance and identical electrical specifications. 74LVC2G125RA3-7 offers higher inventory availability (6089 units) compared to 74LVC2G125HK3-7 (1015 units).

For Alternative 2-Element Configuration: 74LVC2G126HD4-7 provides equivalent 2-element functionality with identical package and electrical parameters. This part is active and RoHS3 compliant with 4833 units in stock.

For Single-Element Implementation: When circuit design permits dual-device implementation, single-element parts offer higher inventory levels. 74LVC1G125FZ4-7 provides the highest availability (35100 units) among single-element options. 74LVC1G126FW4-7 offers 30100 units with identical electrical specifications. Both maintain active product status and full RoHS3 compliance.

All substitute parts maintain identical supply voltage range (1.65V–5.5V), output current specifications (32mA), operating temperature range (-40°C to 125°C), and compliance certifications (RoHS3, MSL Level 1).

Frequently Asked Questions (FAQ)

Q: Can 74LVC1G125 single-element parts directly replace the 74LVC2G125HD4-7? A: No. The 74LVC1G125 contains 1 element while the 74LVC2G125HD4-7 contains 2 elements. Direct replacement requires using two 74LVC1G125 devices. Circuit redesign and PCB layout modification are necessary.

Q: Are all substitute parts electrically identical to the main part? A: All listed substitutes share identical electrical specifications: 1.65V–5.5V supply voltage, 32mA output current (high and low), -40°C to 125°C operating temperature, 3-state output configuration, and non-inverting buffer logic type.

Q: What is the difference between supplier device packages like X2-DFN2010-8 and X2-DFN1410-8? A: These designations indicate different physical dimensions within the 8-pin DFN package family. While both fit the 8-XFDFN package classification, the specific die size and lead frame geometry differ. PCB footprint compatibility must be verified against design specifications.

Q: Which substitute offers the best inventory availability? A: 74LVC1G125FZ4-7 provides the highest inventory level at 35100 units. If a 2-element configuration is required without circuit modification, 74LVC2G125RA3-7 offers 6089 units.

Q: Are all parts RoHS3 compliant? A: Yes. All listed parts, including the main part and all substitutes, are RoHS3 compliant with MSL Level 1 (Unlimited moisture sensitivity rating).

Q: Can 74LVC2G126 parts substitute for 74LVC2G125 parts? A: Yes, based on provided specifications. Both 74LVC2G126HD4-7 and 74LVC2G126GF,115 maintain identical electrical parameters and 2-element configuration. Functional differences between 74LVC2G125 and 74LVC2G126 base products are not specified in the provided data.

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