74HC125N,652 Equivalent & Substitute Parts

Part Overview

The 74HC125N,652 is a non-inverting buffer logic IC manufactured by NXP USA Inc., designed for 4-element, 1-bit-per-element buffering applications with 3-state output capability. This through-hole DIP package component operates across a 2V to 6V supply voltage range and is classified as obsolete. Due to its obsolete status and limited availability relative to active alternatives, identifying equivalent substitute parts is essential for ongoing design support and production continuity.

Substiute Parts

74HC125N,652

NXP USA Inc.In Stock: 83574HC125N,652 Datasheet

Current PartRFQ

CD74HC125E

Harris CorporationIn Stock: 2070CD74HC125E Datasheet

DirectRFQ

74HC125D,653

Nexperia USA Inc.In Stock: 1470474HC125D,653 Datasheet

MFR RecommendedRFQ

SN74HC125N

Texas InstrumentsIn Stock: 13616SN74HC125N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74HC125N,652 are qualified based on the following electrical and mechanical parameters:

• Logic Type: Buffer, Non-Inverting (4 elements, 1 bit per element, 3-state output)
• Output Current: 7.8mA high and low
• Supply Voltage Range: 2V ~ 6V
• Base Product Number: 74HC125 (same logic family)

Substitutes are grouped into two categories:

Category 1: Through-Hole Package Equivalents – Parts maintaining the 14-DIP through-hole mounting configuration, suitable for direct board-level replacement without layout modification.

Category 2: Surface-Mount Alternative – Parts using the 14-SOIC surface-mount package, requiring PCB redesign but offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

For Direct Through-Hole Replacement (No PCB Redesign):

SN74HC125N (Texas Instruments) is the primary through-hole substitute. It maintains identical electrical specifications, 14-DIP package configuration, and ROHS3 compliance. The operating temperature range is -40°C to 85°C, which is narrower than the main part but covers standard industrial applications. This part carries active product status with high inventory availability (13,552 pcs), ensuring long-term supply continuity.

For Surface-Mount Applications (PCB Redesign Required):

74HC125D,653 (Nexperia USA Inc.) is the manufacturer-recommended surface-mount alternative. It provides active product status, ROHS3 compliance, and the widest operating temperature range (-40°C to 125°C). The 14-SOIC package requires PCB layout modification but offers superior availability (14,615 pcs) and modern manufacturing support.

Not Recommended:

CD74HC125E (Harris Corporation) is electrically compatible but carries obsolete product status and RoHS non-compliance, making it unsuitable for new designs or long-term production support.

Frequently Asked Questions (FAQ)

Q: Can SN74HC125N directly replace 74HC125N,652 without any circuit modifications?

A: Yes. Both parts share identical electrical specifications (4-element non-inverting buffer, 3-state output, 7.8mA output current, 2V–6V supply), the same 14-DIP through-hole package, and compatible pin configurations. No circuit modifications are required for direct substitution.

Q: What is the difference between the through-hole and surface-mount substitutes?

A: SN74HC125N uses a 14-DIP through-hole package suitable for breadboards and through-hole PCBs. 74HC125D,653 uses a 14-SOIC surface-mount package requiring SMD assembly equipment and PCB redesign. Electrical performance is identical; the choice depends on manufacturing process and board design.

Q: Does the narrower operating temperature range of SN74HC125N (-40°C to 85°C vs. -40°C to 125°C) affect compatibility?

A: The SN74HC125N temperature range is sufficient for standard industrial and commercial applications. If your design requires operation above 85°C, use 74HC125D,653 (Nexperia) or verify that your application does not exceed this limit.

Q: Why is CD74HC125E not recommended despite electrical compatibility?

A: CD74HC125E is obsolete and RoHS non-compliant. These factors create supply chain risk and regulatory concerns for new production. SN74HC125N and 74HC125D,653 are both active products with full compliance certifications.

Q: Are all substitutes ROHS3 compliant?

A: SN74HC125N and 74HC125D,653 are ROHS3 compliant. CD74HC125E is RoHS non-compliant and should not be used in applications requiring RoHS certification.

Q: What inventory levels are available for each substitute?

A: SN74HC125N (Texas Instruments): 13,552 pcs. 74HC125D,653 (Nexperia): 14,615 pcs. Both substitutes have robust inventory availability for production support.