74LVC1G38GV,125 Equivalent & Substitute Parts

Part Overview

The 74LVC1G38GV,125 is a single-channel, 2-input NAND gate logic IC manufactured by Nexperia USA Inc. in SC-74A packaging. This open-drain NAND gate operates across a wide supply voltage range of 1.65V to 5.5V and is designed for low-power digital logic applications. The part is currently in active production status with 3520 units in stock. Substitute parts are necessary when SC-74A packaging is unavailable, when alternative manufacturers are preferred for supply chain continuity, or when different packaging formats (SOT-23-5) are required for specific board layouts.

Substiute Parts

74LVC1G38GV,125

Nexperia USA Inc.In Stock: 353374LVC1G38GV,125 Datasheet

Current PartRFQ

NC7SZ38M5X

Fairchild SemiconductorIn Stock: 20450NC7SZ38M5X Datasheet

SimilarRFQ

SN74LVC1G38DBVR

Texas InstrumentsIn Stock: 32210SN74LVC1G38DBVR Datasheet

Parametric EquivalentRFQ

SN74LVC1G38DBVT

Texas InstrumentsIn Stock: 10157SN74LVC1G38DBVT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74LVC1G38GV,125 are qualified based on the following critical parameters:

• Logic Function: Single-channel, 2-input NAND gate with open-drain output
• Supply Voltage Range: 1.65V ~ 5.5V compatibility
• Output Current Capability: 32mA maximum sink current
• Propagation Delay: Maximum 4.3ns @ 5V, 50pF load
• Operating Temperature Range: Minimum -40°C ~ 125°C
• Mounting Type: Surface mount only
• Compliance: ROHS3 compliant, EAR99 classification

Substitutes are grouped into two categories: parametric equivalents (identical electrical specifications and temperature range) and similar alternatives (compatible electrical performance with package variations).

Parameter Comparison

Engineering Selection Recommendations

Parametric Equivalents (Recommended Primary Substitutes)

SN74LVC1G38DBVT and SN74LVC1G38DBVR from Texas Instruments are parametric equivalents to the 74LVC1G38GV,125. Both maintain identical electrical specifications, operating temperature range (-40°C ~ 125°C), propagation delay (3.9ns @ 5V, 50pF), and compliance certifications (ROHS3, MSL 1). The primary difference is packaging format: DBVT is supplied in Tape & Reel format, while DBVR is supplied in Cut Tape & Digi-Reel format. Both are suitable for direct functional replacement when SC-74A to SOT-23-5 package conversion is acceptable.

Alternative Substitute (Limited Temperature Range)

NC7SZ38M5X from Fairchild Semiconductor is a functional equivalent with identical logic function and electrical performance. However, the operating temperature range is limited to -40°C ~ 85°C, which is 40°C below the primary part specification. This part is suitable only for applications where the maximum operating temperature does not exceed 85°C. Quiescent current is lower at 2 µA compared to 4 µA for the main part. Propagation delay is slightly higher at 4.3ns. This part is supplied in bulk packaging.

Compliance and Supply Chain Considerations

All recommended parametric equivalents maintain ROHS3 compliance and MSL 1 (unlimited moisture sensitivity level), ensuring compatibility with standard manufacturing and storage conditions. Texas Instruments parts offer higher inventory availability (10071 and 32100 units respectively) compared to the Nexperia part (3520 units), providing supply chain flexibility.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC1G38DBVT and SN74LVC1G38DBVR be used interchangeably with 74LVC1G38GV,125?

A: Yes. Both Texas Instruments parts are parametric equivalents with identical electrical specifications, operating temperature range, and propagation delay. The only difference is packaging format (Tape & Reel vs. Cut Tape & Digi-Reel). Functional performance is equivalent when package conversion is accommodated in board design.

Q: What is the impact of switching from SC-74A to SOT-23-5 packaging?

A: SC-74A and SOT-23-5 are different physical packages with different pin configurations and board footprints. PCB layout and component placement must be redesigned to accommodate the SOT-23-5 footprint. Pin assignments must be verified against the specific datasheet for each package variant.

Q: Is NC7SZ38M5X suitable for all applications using 74LVC1G38GV,125?

A: NC7SZ38M5X is suitable only for applications where the maximum operating temperature does not exceed 85°C. The primary part and Texas Instruments equivalents support operation up to 125°C. If your application requires operation above 85°C, NC7SZ38M5X is not recommended.

Q: What are the key electrical parameters that determine substitutability?

A: The critical parameters are: single-channel 2-input NAND gate function, open-drain output, 1.65V ~ 5.5V supply voltage range, 32mA output sink current, and propagation delay not exceeding 4.3ns @ 5V, 50pF load. All qualified substitutes meet these specifications.

Q: Are there compliance differences between the main part and substitutes?

A: The main part (74LVC1G38GV,125) and both Texas Instruments equivalents are ROHS3 compliant with MSL 1 rating. NC7SZ38M5X compliance status is not specified in the provided data. For applications requiring certified ROHS3 compliance, Texas Instruments parts are the recommended choice.

Q: What is the difference in quiescent current between these parts?

A: The 74LVC1G38GV,125 has a maximum quiescent current of 4 µA. Texas Instruments parts (SN74LVC1G38DBVT and SN74LVC1G38DBVR) have 10 µA maximum. NC7SZ38M5X has the lowest at 2 µA. For battery-powered or ultra-low-power applications, NC7SZ38M5X offers the lowest standby current, while the Nexperia part offers a middle ground.

Q: Which substitute offers the best supply availability?

A: SN74LVC1G38DBVR from Texas Instruments has the highest inventory at 32100 units, followed by NC7SZ38M5X at 20400 units, and SN74LVC1G38DBVT at 10071 units. The original Nexperia part has 3520 units in stock.