Nexperia USA Inc. BZT52-C2V4J

Overview

BZT52-C2V4J from Nexperia is a ±5 % tolerance Zener diode in SOD123 package, rated for 2.4 V nominal regulation at 5 mA, with 400 Ω max differential resistance and 50 μA max reverse current at 1 V, used for low-power voltage reference and overvoltage protection in sensor biasing and power rail clamping circuits.

For engineers reviewing the BZT52-C2V4J datasheet, BZT52-C2V4J pinout, BZT52-C2V4J application, or BZT52-C2V4J equivalent, this page delivers verified Zener parameters, cathode/anode terminal mapping, thermal resistance data, and direct-fit alternatives for precision low-voltage regulation in space-constrained PCB designs.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain stable 2.4 V across its terminals under regulated current conditions (IZ = 5 mA), with temperature coefficient of −3.5 to 0.0 mV/K and junction-to-ambient thermal resistance of 350 K/W on FR4 PCB.

It features low forward voltage (≤0.9 V at 10 mA), non-repetitive peak reverse power dissipation up to 40 W (100 μs pulse), and is qualified for industrial ambient range (−55 °C to +150 °C) with 150 °C maximum junction temperature.

Key Specifications

Pinout & Package

The BZT52-C2V4J uses the SOD123 surface-mount plastic package (2.80 mm × 1.70 mm × 1.30 mm), with cathode marked by a visible band on the body and optimized for reflow soldering per IPC-7095 guidelines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZT52-C2V4J, BZT52-B2V4 offers superior regulation accuracy and lower impedance for critical feedback paths, while MMBZ5221BS trades compactness for reduced thermal performance and higher cost-making the C-series optimal for cost-sensitive, space-constrained industrial biasing.

Availability

BZT52-C2V4J is available at Aetrix Electronics and suitable for temperature sensor biasing, microcontroller I/O clamping, and low-voltage pre-regulation requiring stable component supply, consistent parametric performance, and long-term industrial lifecycle support.

Supply support for BZT52-C2V4J 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 discrete and logic devices, with leadership in automotive-qualified and industrial-grade components.

The BZT52 series targets general-purpose voltage regulation and protection in consumer, industrial, and computing applications, emphasizing manufacturability, thermal robustness, and broad voltage coverage from 2.4 V to 75 V.

FAQ

What is the maximum continuous reverse current the BZT52-C2V4J can sustain without degradation?

The device is rated for 5 mA Zener test current, but its absolute maximum reverse current is limited by power dissipation: at 25 °C ambient, it sustains ≤250 mA only in pulsed conditions (tp ≤ 100 μs). For DC operation, sustained current must stay below 1.2 mA to remain within 590 mW P_tot and avoid exceeding 150 °C junction temperature.

How does the −3.5 to 0.0 mV/K temperature coefficient affect regulation accuracy over temperature?

Over −40 °C to +125 °C, the Zener voltage shifts by up to −0.105 V (−3.5 mV/K × 30 K) at the negative extreme, resulting in ~4.4 % deviation from nominal 2.4 V. This is acceptable for non-critical biasing but requires compensation in precision references.

Can BZT52-C2V4J be used in place of a 2.4 V shunt regulator IC?

No-it lacks active regulation circuitry, current limiting, or thermal shutdown. It provides passive voltage clamping only when biased with an external current source; unlike IC regulators, it cannot drive loads or maintain regulation under variable current demand without series resistance.

Is the SOD123 package compatible with standard 0805 pick-and-place equipment?

Yes-the SOD123 outline (2.80 mm × 1.70 mm) fits 0805 feeders and vision systems, and its cathode marking band aligns with standard optical recognition algorithms; recommended stencil aperture is 0.81 mm × 1.11 mm per pad per Nexperia's reflow footprint guidance.