Nexperia USA Inc. BZX884-C4V7,315

Overview

BZX884-C4V7,315 from Nexperia is a ±5% tolerance Zener diode in SOD882 (DFN1006-2) package, rated for 4.61 V to 4.94 V nominal Zener voltage at 5 mA, with 250 mW total power dissipation and 3 µA reverse current at 2 V, used for precision voltage regulation and ESD protection in space-constrained consumer and automotive electronics.

For engineers reviewing the BZX884-C4V7,315 datasheet, BZX884-C4V7,315 pinout, BZX884-C4V7,315 application, or BZX884-C4V7,315 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (500 K/W), differential resistance (425–500 Ω), junction temperature limit (150 °C), and AEC-Q101 qualification for automotive-grade reliability.

Technical Context

This Zener diode operates in reverse breakdown to maintain stable reference voltage under varying load and temperature conditions. Its low 3 µA reverse leakage at VR = 2 V ensures minimal quiescent current draw in standby circuits, while its 50–80 Ω dynamic impedance at IZ = 5 mA supports tight regulation in feedback paths.

The device features a negative temperature coefficient of −1.2 mV/K at 5 mA, enabling predictable drift compensation in multi-diode references. Its 320 pF capacitance at 1 MHz and 0 V bias makes it suitable for high-frequency decoupling and transient suppression without signal distortion.

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 terminals and a cathode-marking bar on the top surface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX884-C4V7,315, the BZX884-B4V7,315 offers tighter voltage control at the expense of higher impedance, while MMSZ4705T1G trades miniaturization for greater thermal margin and surge capacity-making each optimal for distinct layout and performance constraints.

Availability

BZX884-C4V7,315 is available at Aetrix Electronics and suitable for automotive cabin sensors, USB-C power delivery protection, industrial PLC input stages, and smart home motion detector bias circuits requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for BZX884-C4V7,315 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 specializing in high-performance, reliable discrete, logic, and MOSFET devices, with manufacturing rooted in process technology leadership and automotive-grade quality systems.

The BZX884 series belongs to Nexperia's general-purpose Zener diode product line, engineered for compact, high-reliability voltage regulation and ESD protection in automotive, industrial, and consumer applications where space, thermal performance, and qualification compliance are critical.

FAQ

What is the maximum continuous reverse current the BZX884-C4V7,315 can sustain without degradation?

The device is rated for a maximum forward current of 200 mA, but in Zener operation, sustained reverse current must be limited by power dissipation. At 25 °C ambient on standard FR4, the 250 mW rating allows up to ~53 mA at 4.7 V before exceeding thermal limits. Derating is required above 25 °C using the 500 K/W thermal resistance.

How does the −1.2 mV/K temperature coefficient affect circuit design?

This negative coefficient means the Zener voltage decreases by 1.2 mV per Kelvin rise in junction temperature. For a 50 °C rise from 25 °C, voltage drops ~60 mV - a 1.3% shift. Designers compensate by selecting complementary positive-coefficient components or calibrating at operating temperature, especially in precision references.

Can BZX884-C4V7,315 replace BZX884-B4V7,315 in an existing design?

Yes, electrically and physically - both share identical SOD882 package, pinout, power rating, and Zener voltage range overlap (B: 4.61–4.79 V; C: 4.61–4.94 V). However, the ±5% tolerance increases worst-case regulation error by 0.15 V, so verify system-level margin for reference accuracy and overvoltage clamping thresholds.

Is reflow soldering the only recommended assembly method?

Yes - the datasheet explicitly states reflow soldering is the only recommended method for SOD882 packages. Wave or hand soldering risks thermal damage due to the small thermal mass and leadless construction. Reflow profile must comply with JEDEC J-STD-020 moisture sensitivity level (MSL) requirements and peak temperature limits.