SN74LS151NG4 Equivalent & Substitute Parts

Part Overview

The SN74LS151NG4 is a 1 x 8:1 multiplexer logic integrated circuit manufactured by Texas Instruments in a 16-DIP package. This part is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design and production requirements. The SN74LS151 series remains in active production through alternative packaging and manufacturer variants, ensuring continued availability for applications requiring 8-line to 1-line data selection functionality.

Substiute Parts

SN74LS151NG4

Texas InstrumentsIn Stock: 1175SN74LS151NG4 Datasheet

Current PartRFQ

SN74LS151N

Texas InstrumentsIn Stock: 13554SN74LS151N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74LS151NG4 is determined by strict equivalence across the following critical parameters:

• Circuit configuration: 1 x 8:1 multiplexer topology
• Output current specifications: 400µA (high), 8mA (low)
• Supply voltage range: 4.75V ~ 5.25V
• Operating temperature range: 0°C ~ 70°C
• Package type: 16-DIP (0.300", 7.62mm)
• Mounting method: Through Hole

The SN74LS151N qualifies as a direct substitute based on identical electrical characteristics and mechanical compatibility. Both parts share the same base product number (74LS151) and maintain equivalent functional performance within the specified parameter ranges.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS151N is the appropriate substitute for the discontinued SN74LS151NG4. Both parts maintain identical electrical and mechanical specifications, ensuring direct functional equivalence. The SN74LS151N carries active product status with significantly higher inventory availability (13,452 units in stock versus 1,071 units for the main part), supporting continued procurement for production and design applications.

Both parts comply with ROHS3 and REACH requirements, maintaining regulatory compliance across manufacturing and deployment environments. The SN74LS151N is suitable for direct replacement in existing designs without circuit modification or re-qualification.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS151N directly replace the SN74LS151NG4 without circuit changes?

A: Yes. Both parts share identical electrical characteristics (output current, supply voltage, operating temperature) and mechanical specifications (16-DIP package, through-hole mounting). Direct substitution is supported without circuit modification.

Q: What is the difference between the SN74LS151NG4 and SN74LS151N?

A: The parts are functionally equivalent. The primary difference is product status: SN74LS151NG4 is discontinued at DiGi Electronics, while SN74LS151N remains in active production with higher inventory availability.

Q: Are there any compliance or certification differences between these parts?

A: Both parts maintain ROHS3 compliance and REACH Unaffected status. No compliance differences exist between the two variants.

Q: What is the 16-DIP package specification?

A: The 16-DIP package is a through-hole dual inline package measuring 0.300 inches (7.62mm) in width. This standard package type is compatible with conventional PCB through-hole assembly processes.

Q: Can I use surface-mount alternatives to the SN74LS151NG4?

A: The provided substitute list contains only through-hole DIP packages. Surface-mount alternatives would require separate evaluation based on equivalent electrical specifications and different mechanical compatibility criteria.