SN7405NG4 Equivalent & Substitute Parts

Part Overview

The SN7405NG4 is a 6-channel inverter logic IC with open collector output configuration, housed in a 14-pin DIP package. This device is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement. The SN7405 series provides standard TTL inverter functionality suitable for digital logic applications requiring open collector outputs.

Substiute Parts

SN7405NG4

Texas InstrumentsIn Stock: 697SN7405NG4 Datasheet

Current PartRFQ

SN7405N

Texas InstrumentsIn Stock: 5622SN7405N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN7405NG4 is based on strict equivalence across the following critical parameters:

• Logic type and function (6-channel inverter with open collector output)
• Electrical specifications (supply voltage range, input/output logic levels, propagation delay)
• Package type and pin configuration (14-DIP through-hole)
• Compliance certifications (RoHS3, REACH Unaffected, EAR99)
• Series classification (7400 series TTL logic)

The SN7405N meets all these criteria as a direct substitute, with identical electrical performance and package specifications. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The SN7405N is the primary substitute for the SN7405NG4. Both parts are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications. The SN7405N carries active product status with higher inventory availability (5534 units), ensuring reliable procurement for new designs and replacement applications.

Both parts satisfy ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component deployment. The transition from SN7405NG4 to SN7405N requires no circuit redesign or board layout modifications, as pin configuration and electrical performance are fully equivalent.

Frequently Asked Questions (FAQ)

Q: Can SN7405N directly replace SN7405NG4 in existing designs?

A: Yes. The SN7405N is electrically and mechanically identical to the SN7405NG4. No circuit modifications are required for substitution.

Q: What is the difference between SN7405NG4 and SN7405N?

A: The primary differences are product status (SN7405NG4 is discontinued; SN7405N is active) and packaging format (NG4 uses standard packaging; N uses tube packaging). Electrical specifications and pin configuration are identical.

Q: Are there any compliance differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry the same EAR99 ECCN classification.

Q: What is the operating temperature range for these inverter ICs?

A: Both the SN7405NG4 and SN7405N operate across 0°C to 70°C.

Q: What is the maximum output current for the open collector outputs?

A: The maximum low-side output current is 16mA for both parts.

Q: Are these parts suitable for new design implementations?

A: The SN7405N is recommended for new designs due to its active product status and available inventory. The SN7405NG4 is discontinued and should not be specified for new applications.