Nexperia USA Inc. HEF4081BT-Q100J

Overview

HEF4081BT-Q100 from Nexperia is a quad 2-input AND gate IC qualified to AEC-Q100 Grade 1 for automotive use, operating from -40 °C to +125 °C with supply voltage range 3.0 V to 15.0 V, CMOS low-power dissipation, and symmetrical output drive (±1.1 mA at 5 V, ±2.4 mA at 15 V). It serves as a logic-level combinatorial gate in body control modules, lighting controllers, and power management sequencers.

For engineers reviewing the HEF4081BT-Q100 datasheet, HEF4081BT-Q100 pinout, HEF4081BT-Q100 application, or HEF4081BT-Q100 equivalent, this page delivers verified functional identity, SO14 pin mapping, automotive-grade static/dynamic specs, and validated alternatives for gate-level logic design in harsh-temperature environments.

Technical Context

The HEF4081BT-Q100 implements four independent 2-input AND functions using CMOS technology with clamp diodes on all inputs, enabling safe interfacing to voltages exceeding VDD via current-limiting resistors. Its static operation eliminates minimum clock requirements, supporting asynchronous logic control.

It features standardized symmetrical output characteristics across 5 V/10 V/15 V rails, with propagation delays ranging from 7 ns (15 V, CL = 0 pF) to 110 ns (5 V, CL = 50 pF), and input transition rate support up to 0.08 μs/V at 15 V - critical for noise-immune signal conditioning in distributed automotive networks.

Key Specifications

Pinout & Package

Package: SO14 plastic small outline package (SOT108-1), 14-lead, 3.9 mm body width, 1.27 mm lead pitch, compliant with JEDEC MS-012.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad 2-input AND gate applications.

Compared with SN74HC08QPWRQ1 and 74LVC08APWJ, the HEF4081BT-Q100 uniquely balances wide-voltage operation, integrated input protection, and AEC-Q100 compliance - making it the sole choice for 12 V automotive subsystems requiring direct battery interfacing and temperature resilience.

Availability

HEF4081BT-Q100 is available at Aetrix Electronics and suitable for automotive body electronics, LED lighting control, power sequencing, and diagnostic interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for HEF4081BT-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 logic, discrete, and MOSFET solutions, with leadership in automotive-qualified components and energy-efficient packaging.

The HEF4081BT-Q100 belongs to Nexperia's automotive logic family, designed specifically for robust, low-power combinational logic in harsh-environment ECUs where reliability, voltage flexibility, and qualification rigor are mandatory.

FAQ

What is the maximum allowable supply voltage for continuous operation?

The absolute maximum supply voltage (VDD) is +18 V, but recommended continuous operation is limited to 3.0–15.0 V per datasheet Section 8. Operation above 15.0 V risks accelerated parametric drift and reduced long-term reliability, even if within absolute maximum ratings.

Can HEF4081BT-Q100 interface directly with 24 V sensor outputs?

Yes - its input clamp diodes allow safe interfacing to 24 V signals when used with appropriate series current-limiting resistors (e.g., 10 kΩ for ≤2 mA clamp current), as confirmed in Section 1 General Description and Table 4 Limiting Values.

Does this device support mixed-voltage logic translation between 3.3 V and 5 V domains?

No - it does not perform level translation. Inputs recognize VIH ≥ 0.7×VDD and VIL ≤ 0.3×VDD, so at VDD = 5 V, a 3.3 V HIGH signal (3.3 V < 3.5 V) may not register reliably; external translators or resistor dividers are required for cross-voltage domain interfacing.

Is thermal derating required above 100 °C ambient?

Yes - total power dissipation (Ptot) derates linearly at 10.1 mW/K above 100 °C for the SO14 package (Section 7 Limiting Values). At 125 °C ambient, maximum Ptot drops to ~247 mW, requiring careful load capacitance and switching frequency management to avoid thermal runaway.