Nexperia USA Inc. BZX884S-C2V4-QYL

Overview

BZX884S-C2V4-QYL from Nexperia is a ±5 % tolerance Zener diode optimized for precision voltage regulation and reference in space-constrained automotive and industrial circuits, featuring 2.4 V nominal breakdown voltage, 365 mW power dissipation on FR4 PCB, and AEC-Q101 qualification for under-hood applications.

For engineers reviewing the BZX884S-C2V4-QYL datasheet, BZX884S-C2V4-QYL pinout, BZX884S-C2V4-QYL application, or BZX884S-C2V4-QYL equivalent, this device serves as a compact, side-wettable-flank-compatible voltage clamp in low-current bias networks, ESD-protected I/O rails, and analog sensor reference stages where thermal stability and automotive-grade reliability are required.

Technical Context

This Zener diode operates in reverse-biased breakdown mode with a typical differential resistance of 275 Ω at 5 mA test current and a temperature coefficient of −3.5 mV/K, enabling stable regulation across −55 °C to +150 °C ambient range. Its low 260 pF capacitance at 1 MHz supports high-frequency noise suppression without signal distortion.

The device uses a planar epitaxial construction with cathode-indicating marking bar on the DFN1006BD-2 package, ensuring unambiguous orientation during automated placement and reflow soldering per IPC-J-STD-020 standards.

Key Specifications

Pinout & Package

DFN1006BD-2 (SOD882BD) leadless surface-mount package with side-wettable flanks for automated optical solder-joint inspection; body height 0.47 mm, terminal pitch 0.65 mm, cathode identified by molded marking bar.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener regulation applications.

Compared with BZX884S-C2V4-QYL, the BZX884S-B2V4-Q offers tighter voltage control at the expense of higher impedance-induced load regulation error, while MMSZ4678T1G trades automotive qualification and miniaturization for greater thermal robustness and legacy assembly compatibility.

Availability

BZX884S-C2V4-QYL is available at Aetrix Electronics and suitable for automotive sensor modules, industrial I/O protection circuits, portable medical reference designs, and consumer power management systems requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for BZX884S-C2V4-QYL 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, reliable discrete, logic, and MOSFET devices, with manufacturing rooted in process innovation and automotive-grade quality systems.

The BZX884S-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for compact, thermally demanding voltage reference and clamping roles in automotive ECUs, ADAS subsystems, and industrial control hardware.

FAQ

What is the maximum continuous reverse current the BZX884S-C2V4-QYL can sustain without degradation?

The device is rated for up to 200 mA forward current, but as a Zener diode it operates in reverse breakdown; its limiting reverse current is defined by power dissipation. At 25 °C ambient on standard FR4, sustained reverse current must remain ≤152 mA to stay within the 365 mW Ptot limit (IZ × VZ ≤ 365 mW). Derating is required above 25 °C per the 340 K/W Rth(j-a) value.

Can BZX884S-C2V4-QYL be used in place of a 2.4 V TL431-based shunt regulator?

No - the BZX884S-C2V4-QYL is a passive two-terminal Zener diode without internal amplification or adjustable feedback. It lacks the 2.5 V reference, programmable output, and 100 mA sink capability of the TL431. It serves only as a fixed-voltage clamp or basic reference, not as an active regulation IC.

Does the side-wettable flank design require special stencil or reflow profile adjustments?

No - the DFN1006BD-2 package uses standard reflow profiles per IPC-J-STD-020. The side-wettable flanks are geometrically integrated into the terminal structure and do not alter thermal mass or solder paste volume requirements; standard 0.2 mm stencil apertures and JEDEC Level 2a profile are sufficient for void-free joints.

How does the −3.5 mV/K temperature coefficient impact regulation accuracy over −40 °C to +125 °C?

Over that 165 K range, the total Zener voltage drift is approximately −578 mV (−3.5 mV/K × 165 K), resulting in a 2.4 V nominal device shifting from ~2.98 V at −40 °C to ~2.40 V at 25 °C to ~1.82 V at +125 °C. This behavior is predictable and usable in compensated designs but unsuitable for wide-temperature applications requiring <±1 % stability without external correction.