SN7407NS Equivalent & Substitute Parts

Part Overview

The SN7407NS is a Buffer, Non-Inverting logic integrated circuit manufactured by Texas Instruments, featuring 6 elements with 1 bit per element and open collector output configuration. This device operates within the 7400 series logic family and is housed in a 14-SOIC package.

The SN7407NS is classified as Last Time Buy, indicating that the original packaging configuration (tube or bulk) is no longer in active production. To ensure continued supply chain reliability and component availability, equivalent substitute parts with identical electrical and mechanical specifications are necessary for procurement planning and design continuity.

Substiute Parts

SN7407NS

Texas InstrumentsIn Stock: 871SN7407NS Datasheet

Current PartRFQ

SN7407NSR

Texas InstrumentsIn Stock: 3245SN7407NSR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN7407NS is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Logic Type: Buffer, Non-Inverting (identical function)
• Number of Elements: 6 (identical channel count)
• Number of Bits per Element: 1 (identical bit configuration)
• Output Type: Open Collector (identical output stage)
• Current - Output Low: 40mA (identical drive capability)
• Voltage - Supply: 4.75V ~ 5.25V (identical supply range)
• Operating Temperature Range: 0°C ~ 70°C (identical thermal specification)

Mechanical Equivalence Requirements:

• Package / Case: 14-SOIC (0.209", 5.30mm Width) (identical footprint and pinout)
• Mounting Type: Surface Mount (identical assembly method)

Compliance Equivalence Requirements:

• RoHS Status: ROHS3 Compliant (identical environmental compliance)
• Moisture Sensitivity Level: 1 (Unlimited) (identical moisture handling)

Substitute parts must satisfy all electrical, mechanical, and compliance parameters without exception. Packaging format (tube, tape & reel, or bulk) does not affect functional or electrical substitutability.

Parameter Comparison

Engineering Selection Recommendations

SN7407NSR as Primary Substitute:

The SN7407NSR is the direct functional and electrical equivalent of the SN7407NS. Both devices are manufactured by Texas Instruments and share identical specifications across all critical parameters: logic function, element count, bit configuration, output type, current rating, supply voltage range, operating temperature range, package footprint, and compliance certifications.

The SN7407NSR differs only in product status and packaging format. The SN7407NSR maintains Active product status, ensuring long-term availability and continued manufacturing support. The SN7407NSR is supplied in Tape & Reel (TR) format, which is the standard packaging for high-volume production environments and automated assembly processes.

For applications requiring the SN7407NS, the SN7407NSR provides equivalent performance with superior supply chain continuity. The transition from Last Time Buy status to Active status eliminates procurement risk and supports extended production schedules.

Frequently Asked Questions (FAQ)

Q: Can the SN7407NSR be used as a direct replacement for the SN7407NS in existing designs?

A: Yes. The SN7407NSR is electrically and mechanically equivalent to the SN7407NS. All functional parameters, electrical specifications, package dimensions, pinout configuration, and compliance certifications are identical. Direct substitution is supported without design modification.

Q: What is the difference between SN7407NS and SN7407NSR?

A: The primary differences are product status and packaging format. The SN7407NS is Last Time Buy status supplied in standard packaging. The SN7407NSR is Active status supplied in Tape & Reel (TR) format. Electrical and functional specifications are identical.

Q: Is the 14-SOIC package footprint identical between both parts?

A: Yes. Both the SN7407NS and SN7407NSR use the 14-SOIC package with 0.209" width and 5.30mm width specification. PCB footprints, land patterns, and assembly processes are identical.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the SN7407NS and SN7407NSR are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited). Both parts meet identical environmental and regulatory requirements.

Q: What is the significance of Tape & Reel packaging for the SN7407NSR?

A: Tape & Reel (TR) packaging is the standard format for automated surface mount assembly. This packaging format enables high-speed pick-and-place machine processing, reduces manual handling, and is optimized for production environments. Tape & Reel format does not affect electrical performance or functional equivalence.

Q: Can the SN7407NSR be used in low-volume or prototype applications?

A: Yes. While Tape & Reel packaging is optimized for production volumes, the SN7407NSR can be used in any application requiring the SN7407NS specifications. Individual units can be extracted from tape reels for prototype or low-volume assembly.

Q: What is the open collector output configuration?

A: Open collector output means the output stage consists of an open transistor collector without an internal pull-up resistor. External pull-up resistors must be connected to the supply voltage to establish logic high levels. This configuration enables wire-OR logic and interface flexibility.

Q: Are there any temperature or voltage derating considerations?

A: Both parts operate identically within the specified range of 4.75V to 5.25V supply voltage and 0°C to 70°C operating temperature. No derating is required within these specifications.