NXP Semiconductors HEC4066BT,118

Overview

HEC4066BT,118 from Nexperia is a quad SPST analog switch IC operating from 3.0 V to 15.0 V supply, featuring active-HIGH enable inputs (1E–4E), bidirectional Y/Z signal paths per channel, and ON resistance as low as 40 Ω at 15 V. It supports analog/digital multiplexing in industrial control interfaces requiring rail-to-rail signal handling up to ±125 °C ambient.

For engineers reviewing the HEC4066BT,118 datasheet, HEC4066BT,118 pinout, HEC4066BT,118 application, or HEC4066BT,118 equivalent, key selection criteria include guaranteed 125 °C operation, sub-100 Ω typical R_ON across 5–15 V, <10 ns propagation delay, isolation >50 dB at 1 MHz, and SO14 package compatibility with legacy 4000-series layouts.

Technical Context

The HEC4066BT,118 implements four independent CMOS transmission gates, each with symmetrical Y–Z conduction and separate active-HIGH enable (nE) control. Its static design ensures fully static operation with no minimum clock or refresh requirement, and input clamp diodes allow safe interfacing to signals exceeding VDD when used with current-limiting resistors.

Dynamic behavior is characterized by matched channel timing: t_PHL/t_PLH ≤10 ns (VDD = 10–15 V), t_PZH/t_PHZ ≤120 ns, and f_(-3dB) ≥90 MHz (VDD = 10 V, RL = 1 kΩ, CL = 5 pF). THD remains ≤0.04% at 1 kHz, supporting precision analog routing.

Key Specifications

Pinout & Package

HEC4066BT,118 is housed in a plastic small outline package (SO14) per SOT108-1 standard: 14-pin, 3.9 mm body width, 1.27 mm pitch, with gull-wing leads suitable for reflow soldering.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog switch applications.

Compared with TS5A23157DCUR and ADG1419BRUZ, the HEC4066BT,118 uniquely balances wide voltage range (3–15 V), extended temperature capability (-40 to +125 °C), integrated ESD/clamp protection, and SO14 footprint-making it optimal for cost-sensitive, thermally demanding industrial signal routing where pin count and layout reuse matter.

Availability

HEC4066BT,118 is available at Aetrix Electronics and suitable for industrial sensor multiplexing, audio signal routing, digital I/O expansion, and test equipment signal gating requiring stable component supply across extended temperature and voltage ranges.

Supply support for HEC4066BT,118 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 focused on high-volume, high-reliability essential components including logic, discrete, and MOSFET devices.

The HEF4066B family was designed for robust analog and digital signal routing in industrial, automotive (non-safety), and consumer systems where wide supply range, thermal resilience, and JEDEC-compliant packaging are mandatory.

FAQ

What is the maximum supply voltage rating for HEC4066BT,118?

The absolute maximum supply voltage (VDD) for HEC4066BT,118 is +18 V, but the recommended operating range is 3.0 V to 15.0 V per the datasheet. Operation above 15 V may compromise long-term reliability and parametric guarantees, especially at elevated temperatures. The HEC4066BT,118 is specified for 5 V, 10 V, and 15 V parametric ratings with validated R_ON, timing, and leakage performance within that band.

Does HEC4066BT,118 support bidirectional analog signal flow?

Yes, HEC4066BT,118 supports fully bidirectional analog signal flow between each Y and Z terminal pair (e.g., 1Y ↔ 1Z). The CMOS transmission gate architecture imposes no inherent directionality, and the datasheet confirms symmetrical output characteristics and identical R_ON values regardless of signal direction. This enables flexible routing in both source-to-load and load-to-source configurations.

How does the enable logic work on HEC4066BT,118?

Each of the four switches in HEC4066BT,118 has a dedicated active-HIGH enable input (1E, 2E, 3E, 4E). When the enable pin is driven HIGH (≥VDD × 0.7), the corresponding Y–Z path turns ON; when driven LOW (≤VDD × 0.3), the path turns OFF with leakage <200 nA. No internal pull-up or pull-down resistors are present-external logic or MCU GPIO must drive these pins definitively.

Can HEC4066BT,118 interface with signals exceeding VDD?

Yes, HEC4066BT,118 includes input clamp diodes on all Y, Z, and E pins. When used with appropriate series current-limiting resistors, it safely interfaces to signals ranging from VSS − 0.5 V to VDD + 0.5 V. This allows connection to higher-voltage sensors or legacy logic families without external protection diodes-provided the clamping current stays within ±10 mA per pin as specified in the limiting values table.

What is the thermal qualification of HEC4066BT,118?

HEC4066BT,118 is fully specified and tested from -40 °C to +125 °C ambient temperature. Static and dynamic parameters-including R_ON, propagation delay, leakage, and THD-are guaranteed across this full industrial range. The SO14 package (SOT108-1) includes linear derating of total power dissipation above 100 °C (10.1 mW/K), ensuring predictable thermal behavior in sealed enclosures or near heat sources.