74AHC1G126QSE-7

Overview

The Diodes Incorporated 74AHC1G126QSE-7 is an automotive-compliant single non-inverting buffer with a 3-state output, designed for operation within a power supply range of 2.0V to 5.5V. It features Schmitt trigger inputs tolerant of slower rise and fall times, balanced propagation delays, and ±8mA output drive capability at 4.5V. The device operates across Grade 1 ambient temperatures from -40°C to +125°C and includes ESD protection exceeding 2000V (HBM) and 1000V (CDM). Packaged in SOT353, it meets AEC-Q100 standards and is fully RoHS compliant.

Feature Summary

• Automotive-grade compliance with AEC-Q100 qualification and PPAP capability for specific change control requirements
• Schmitt trigger action on all inputs provides tolerance for slower input rise and fall times
• Outputs enter a high-impedance state when the OE pin receives a LOW-level signal
• Totally lead-free and fully RoHS compliant with halogen and antimony-free construction

Applications

• Automotive applications within Grade 1 temperature range
• Industrial computing, controls, and automation systems
• High reliability networking and communications equipment
• Industrial and agricultural equipment

Procurement Notes

Verify that the component matches the exact part number 74AHC1G126QSE-7, ensuring the 'SE' suffix corresponds to the SOT353 package rather than the SOT25 variant. Confirm the presence of the 'Q' designation to ensure AEC-Q100 automotive qualification is included. Check manufacturing dates against IATF 16949 facility certification requirements if strict automotive change control protocols are mandated by your design specifications.

Selection Notes

Select this component when a single-channel, non-inverting buffer with controlled 3-state output is required for automotive or industrial environments. It is suitable for designs needing Schmitt trigger noise immunity and wide voltage compatibility between 2.0V and 5.5V. Ensure the application does not require inverting logic or multiple gates, as this device contains only one buffer channel.

Part Context

This device belongs to the 74AHC1GxxQ series of single-gate logic devices manufactured by Diodes Incorporated. It shares the same automotive qualification and packaging options as other members of the family but differs in logical function. The Q suffix indicates AEC-Q100 compliance, while the SE suffix specifically denotes the compact SOT353 surface-mount package used for space-constrained PCB layouts.

Replacement Considerations

The 74AHC1G126QW5-7 serves as a direct functional substitute utilizing the SOT25 package instead of SOT353. Verify that the physical footprint and pin pitch differences do not impact the existing board layout before swapping packages.

FAQ

How does the device handle slow input signals?

All inputs feature Schmitt trigger action, which makes the circuit tolerant for slower input rise and fall times.

What is the condition for the output to enter a high impedance state?

The output enters a high impedance state when a LOW-level signal is applied to the Output Enable (OE) pin.