Nexperia USA Inc. BZX884-C3V9,315

Overview

BZX884-C3V9,315 from Nexperia is a ±5 % tolerance Zener diode in SOD882 (DFN1006-2) package, providing 3.9 V nominal regulation at 5 mA with 400 Ω typical differential resistance and −1.9 mV/K temperature coefficient. It delivers 250 mW total power dissipation, supports ESD protection and high-frequency voltage clamping, and is AEC-Q101 qualified for automotive signal conditioning.

For engineers reviewing the BZX884-C3V9,315 datasheet, BZX884-C3V9,315 pinout, BZX884-C3V9,315 application, or BZX884-C3V9,315 equivalent, this page provides verified Zener voltage, reverse leakage at 1 V (3 µA), forward voltage at 10 mA (0.9 V), thermal resistance (500 K/W), and SOD882 footprint compatibility details required for precision low-voltage regulation and transient suppression design.

Technical Context

This Zener diode operates in reverse breakdown to maintain stable 3.9 V reference under 5 mA test current, with tight ±5 % tolerance ensuring predictable clamping across production batches. Its ultra-small DFN1006-2 package enables high-density PCB layouts while maintaining thermal performance up to 150 °C junction temperature.

The device exhibits 370 pF capacitance at 1 MHz and 0 V bias, supporting high-frequency decoupling roles; its non-repetitive peak reverse current of 6 A (100 µs pulse) enables robust ESD immunity per IEC 61000-4-2 Level 4 requirements.

Key Specifications

Pinout & Package

SOD882 (DFN1006-2) is a leadless ultra-small surface-mount plastic package measuring 1.0 × 0.6 × 0.5 mm, with exposed copper pad for thermal conduction and cathode-marked top surface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX884-C3V9,315, the BZX884-B3V9,315 improves voltage accuracy by ±0.04 V but increases cost and reduces thermal efficiency due to larger r_diff; MMSZ5226B-7-F trades 40 % smaller size for 100 % higher leakage and 2× larger footprint, limiting use in ultra-dense portable designs.

Availability

BZX884-C3V9,315 is available at Aetrix Electronics and suitable for automotive sensor biasing, USB port ESD protection, and industrial PLC input protection requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for BZX884-C3V9,315 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 delivering high-performance logic, discrete, and MOSFET devices with focus on efficiency, reliability, and miniaturization for automotive and industrial markets.

The BZX884 series belongs to Nexperia's general-purpose Zener diode product line, engineered for precision voltage regulation and transient suppression in space-constrained, high-reliability applications where AEC-Q101 compliance and ultra-small packaging are critical.

FAQ

What is the maximum reverse voltage before breakdown for BZX884-C3V9,315?

The BZX884-C3V9,315 exhibits a guaranteed Zener breakdown between 3.82 V and 3.98 V at 5 mA test current. Below 3.71 V, reverse leakage remains ≤3 µA at 1 V; no defined "maximum non-breakdown" voltage is specified, as Zener operation begins gradually above 3.71 V per datasheet Table 8.

Can BZX884-C3V9,315 be used in place of a 3.3 V Zener diode?

No - BZX884-C3V9,315 is rated for 3.9 V nominal Zener voltage, not 3.3 V. Substituting it for a 3.3 V part would result in ~18 % higher clamping voltage, potentially damaging downstream 3.3 V logic. For 3.3 V regulation, use BZX884-C3V3,315 (3.23–3.37 V range).

Is the SOD882 package compatible with standard reflow soldering profiles?

Yes - Nexperia specifies reflow soldering as the only recommended method for SOD882. The package supports JEDEC J-STD-020-compliant profiles with peak temperatures up to 260 °C, and Figure 12 provides exact solder land dimensions (0.3 mm pad width, 0.7 mm length) for reliable attachment.

How does the −1.9 mV/K temperature coefficient affect circuit performance?

A −1.9 mV/K coefficient means the Zener voltage decreases by 1.9 mV per degree Celsius rise in junction temperature. Over a −40 °C to +125 °C range (165 K delta), total drift is ≤314 mV - critical for precision references but acceptable for general-purpose clamping where ±50 mV tolerance is permissible.