74ACT125MTC Equivalent & Substitute Parts

Part Overview

The 74ACT125MTC is a non-inverting buffer IC with 4 elements, each capable of 1-bit operations with 3-state output capability. Manufactured by onsemi in a 14-TSSOP surface mount package, this component operates across a 4.5V to 5.5V supply voltage range with output current ratings of 24mA for both high and low states. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

74ACT125MTC

onsemiIn Stock: 110674ACT125MTC Datasheet

Current PartRFQ

MC74ACT125DTR2G

onsemiIn Stock: 4250MC74ACT125DTR2G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74ACT125MTC is determined by strict equivalence across the following critical parameters:

• Logic function: Non-inverting buffer with 4 elements, 1 bit per element
• Output configuration: 3-state output capability
• Electrical specifications: 24mA output current (high and low), 4.5V–5.5V supply voltage
• Operating temperature range: -40°C to 85°C
• Package type: 14-TSSOP surface mount
• Base product series: 74ACT

The MC74ACT125DTR2G meets all these criteria and is therefore a direct functional equivalent. The primary distinction is product status: the substitute is active and available, whereas the original part is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The MC74ACT125DTR2G is the direct substitute for the 74ACT125MTC. Both parts share identical electrical and mechanical specifications, including logic function, output characteristics, supply voltage range, operating temperature, and package configuration. The substitute part carries active product status and RoHS3 compliance, providing improved long-term availability and regulatory alignment compared to the obsolete original part. Selection of the MC74ACT125DTR2G is appropriate for replacement applications and new designs requiring 74ACT125 functionality.

Frequently Asked Questions (FAQ)

Q: Can the MC74ACT125DTR2G be used as a direct replacement for the 74ACT125MTC?

A: Yes. Both parts are manufactured by onsemi, share the same base product number (74ACT125), and are electrically and mechanically identical across all specified parameters including logic type, element count, output configuration, current ratings, voltage range, temperature range, and package type.

Q: What is the difference between these two part numbers?

A: The primary difference is product status. The 74ACT125MTC is obsolete, while the MC74ACT125DTR2G is active. The substitute also carries RoHS3 compliance certification. All functional and electrical parameters are equivalent.

Q: Are there any package or pinout differences?

A: No. Both parts use the 14-TSSOP surface mount package with identical dimensions (0.173" width, 4.40mm). Pinout and footprint compatibility are assured.

Q: What packaging options are available for the substitute part?

A: The MC74ACT125DTR2G is supplied in Cut Tape (CT) and Digi-Reel® packaging formats.

Q: Are there any compliance or regulatory differences?

A: Both parts maintain REACH Unaffected status and EAR99 ECCN classification. The substitute carries RoHS3 compliance, whereas the original part status does not specify RoHS compliance. Both have MSL rating of 1 (Unlimited).