SN74LS02NG4 Equivalent & Substitute Parts

Part Overview

The SN74LS02NG4 is a NOR Gate IC with 4 channels and 2 inputs per channel, packaged in a 14-DIP configuration. This component is discontinued at DiGi Electronics, making substitute parts necessary for ongoing production and maintenance applications. The SN74LS02 series remains widely available through alternative packaging and product status configurations, ensuring design continuity for legacy and new implementations.

Substiute Parts

SN74LS02NG4

Texas InstrumentsIn Stock: 754SN74LS02NG4 Datasheet

Current PartRFQ

SN74LS02N

Texas InstrumentsIn Stock: 8747SN74LS02N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN74LS02NG4 is determined by strict equivalence across the following critical parameters:

• Logic configuration: 4-channel NOR gate with 2 inputs per channel
• Electrical specifications: 4.75V ~ 5.25V supply voltage, 400µA/16mA output current, 15ns propagation delay
• Physical form factor: 14-DIP through-hole package (0.300", 7.62mm)
• Series classification: 74LS logic family
• Compliance: ROHS3 and REACH standards

The SN74LS02N qualifies as a direct substitute based on identical electrical and mechanical parameters. The primary distinction is packaging configuration (Tube vs. standard) and product status (Active vs. Discontinued).

Parameter Comparison

Engineering Selection Recommendations

The SN74LS02N is the primary substitute for the SN74LS02NG4. Both components are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications. The SN74LS02N carries Active product status, ensuring continued availability and supply chain reliability. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications.

Selection between these parts should be based on packaging requirements and supply availability. The SN74LS02N is supplied in Tube packaging, while the SN74LS02NG4 uses standard packaging. For applications requiring specific packaging configurations, verify supplier inventory and lead times.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS02N directly replace the SN74LS02NG4 in existing designs?

A: Yes. Both components share identical electrical specifications, logic configuration, and 14-DIP package dimensions. No circuit modifications are required for substitution.

Q: What is the difference between the SN74LS02NG4 and SN74LS02N?

A: The primary differences are packaging format (standard vs. Tube) and product status (Discontinued vs. Active). Electrical and mechanical parameters are identical.

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

A: No. Both components maintain ROHS3 compliance and REACH unaffected status. Regulatory requirements are equivalent.

Q: What parameters must remain constant for a valid substitute?

A: Logic type (NOR Gate), circuit count (4), input count (2), supply voltage (4.75V ~ 5.25V), output current (400µA/16mA), propagation delay (15ns), operating temperature range (0°C ~ 70°C), and package form factor (14-DIP) must all remain unchanged.

Q: Is the 14-DIP package dimension critical for substitution?

A: Yes. The 14-DIP (0.300", 7.62mm) package dimension is a mechanical requirement for through-hole PCB compatibility. Substitutes must maintain this exact package specification.