Nexperia USA Inc. HEF40106BT-Q100J

Overview

HEF40106BT-Q100 from Nexperia is a hex inverting Schmitt trigger IC qualified to AEC-Q100 Grade 1, operating from -40 °C to +125 °C with supply voltage range 3.0 V to 15.0 V. It features six independent Schmitt-trigger inputs with hysteresis (VT+ = 4.9 V, VT− = 4.0 V at VDD = 15 V), symmetrical output drive (±4.2 mA at 15 V), and clamp diodes enabling overvoltage-tolerant input interfacing. It is used in automotive waveform conditioning circuits such as pulse shaping and multivibrator timing blocks.

For engineers reviewing the HEF40106BT-Q100 datasheet, HEF40106BT-Q100 pinout, HEF40106BT-Q100 application, or HEF40106BT-Q100 equivalent, key selection criteria include Schmitt threshold stability across temperature, wide-VDD operation for 5/10/15 V systems, AEC-Q100 Grade 1 qualification, and SO14 package compatibility with legacy 4000-series layouts.

Technical Context

The HEF40106BT-Q100 implements six independent CMOS inverting buffers with Schmitt-trigger input stages, each providing hysteresis to reject noise on slow-rising or noisy signals. Its input clamp diodes allow direct connection to voltages exceeding VDD when used with current-limiting resistors.

It supports fully static operation and exhibits standardized symmetrical output characteristics: VOH ≥ 14.95 V and VOL ≤ 0.05 V at VDD = 15 V with |IO| < 1 μA, and IOL = 4.2 mA / IOH = −4.2 mA under defined load conditions. Propagation delay ranges from 22 ns to 180 ns depending on VDD and load capacitance.

Key Specifications

Pinout & Package

HEF40106BT-Q100 is housed in a plastic small outline package (SO14) per SOT108-1 standard: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex inverting Schmitt trigger applications.

Compared with SN74LV14APWR and MC74HC14ADTR2G, the HEF40106BT-Q100 uniquely supports 15 V operation, AEC-Q100 Grade 1 qualification, and higher hysteresis stability across −40 °C to +125 °C - making it the only option for under-hood timing and signal conditioning in modern automotive ECUs.

Availability

HEF40106BT-Q100 is available at Aetrix Electronics and suitable for automotive ECU design, body control module development, and infotainment system timing circuits requiring stable component supply across extended temperature and voltage ranges.

Supply support for HEF40106BT-Q100 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert specializing in high-performance, high-reliability logic, discrete, and MOSFET solutions for automotive, industrial, and mobile markets.

The HEF40106BT-Q100 belongs to Nexperia's automotive-qualified 4000B logic family, designed specifically to replace legacy CD40106 devices with enhanced AEC-Q100 compliance, wider voltage tolerance, and improved ESD robustness for next-generation vehicle electronics.

FAQ

What is the maximum allowable input voltage relative to VDD?

The HEF40106BT-Q100 includes internal clamp diodes that permit input voltages up to VDD + 0.5 V or down to −0.5 V, provided an external current-limiting resistor restricts IIK to ±10 mA. This allows direct interfacing with 12 V automotive signals when powered from 5 V, as long as resistor value ≥ (12 V − 5.5 V)/10 mA = 650 Ω.

Can this device drive a 50 pF capacitive load at 10 MHz?

Yes - at VDD = 10 V and CL = 50 pF, tPHL/tPLH are specified at 35 ns (max), supporting reliable operation up to ≈14 MHz fundamental frequency. Dynamic power dissipation is calculated as PD = 9000 × fi + Σ(fo × CL) × VDD², yielding ~1.1 mW per active inverter at 10 MHz, well within the 500 mW total package limit.

How does hysteresis change with supply voltage?

VT+ and VT− scale approximately linearly with VDD: at 5 V, VT+ = 2.0–3.5 V and VT− = 1.5–3.0 V; at 15 V, VT+ = 4.9–11.0 V and VT− = 4.0–10.1 V. Hysteresis voltage VH remains relatively stable (0.5–0.9 V min, 1.8 V typ), ensuring consistent noise immunity across the full 3–15 V range.

Is the SO14 package footprint compatible with legacy CD40106BE designs?

Yes - the HEF40106BT-Q100 in SOT108-1 (SO14) uses identical 1.27 mm pitch, 3.9 mm body width, and pin 1 indexing as the through-hole CD40106BE. Pin assignments match exactly: inputs on odd pins (1,3,5,9,11,13), outputs on even pins (2,4,6,8,10,12), VDD on pin 14, VSS on pin 7.