Nexperia USA Inc. BZV49-C15,115

Overview

BZV49-C15,115 from Nexperia is a medium-power Zener voltage regulator diode in SOT89 package, designed for precision DC voltage reference and stabilization in power supply rails. It delivers a nominal working voltage of 15 V (min 13.8 V, max 15.6 V) at 5 mA test current, with differential resistance ≤30 Ω, temperature coefficient of +9.2 to +13.0 mV/K, and total power dissipation up to 1 W at 25 °C ambient.

For engineers reviewing the BZV49-C15,115 datasheet, BZV49-C15,115 pinout, BZV49-C15,115 application, or BZV49-C15,115 equivalent, key selection considerations include its ±5% tolerance E24-series voltage rating, non-repetitive peak reverse power capability of 40 W (100 μs), low reverse leakage (≤0.05 μA at 10.5 V), and thermal resistance of 15 K/W (junction-to-tie-point) for stable regulation under transient load conditions.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain a stable reference voltage across its cathode-anode terminals. Its voltage regulation is defined by the Zener effect (dominant below ~5.6 V) and avalanche breakdown (dominant above ~5.6 V); at 15 V, avalanche dominates, yielding positive temperature coefficient behavior (+9.2 to +13.0 mV/K).

The SOT89 package features an exposed collector pad (Pin 3) for enhanced thermal conduction to PCB copper, enabling reliable 1 W continuous dissipation when mounted on a 2.5 cm² ceramic substrate. Pin configuration supports dual-anode layout (Pins 1 and 3) with common cathode (Pin 2), allowing flexible PCB routing and heat-sinking options.

Key Specifications

Pinout & Package

The BZV49-C15,115 is housed in a plastic surface-mounted SOT89 (SC-62/TO-243) package with three leads and an exposed thermal pad (Pin 3). The package provides low thermal resistance and mechanical robustness for automated assembly.

Key Features

Applications

Availability

BZV49-C15,115 is available at Aetrix Electronics and suitable for power supply voltage reference, overvoltage protection clamp, and microcontroller reset circuit applications requiring stable component supply and consistent parametric performance across production batches.

Supply support for BZV49-C15,115 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 leader in discrete, logic, and PowerMOS semiconductors, formed in 2017 from the former NXP Standard Products division, with focus on automotive, industrial, computing, consumer, and wearable markets.

The BZV49 series belongs to Nexperia's voltage regulator diode product line, engineered for high-reliability DC voltage stabilization in space-constrained SMD designs where thermal performance and parametric consistency are critical.

FAQ

What is the maximum continuous forward current rating for BZV49-C15,115?

The BZV49-C15,115 has a maximum continuous forward current (I_F) of 250 mA at T_amb = 25 °C, as specified in the Absolute Maximum Ratings table. This rating applies only when operated in forward bias; the device is intended for reverse-bias Zener operation, and forward conduction should be avoided in normal regulation use.

Can BZV49-C15,115 be used as a substitute for BZX84-C15 in SOT23 footprint designs?

No - BZV49-C15,115 uses SOT89 (3-lead, thermal pad) while BZX84-C15 uses SOT23 (3-lead, no thermal pad). They differ in package size, thermal performance (R_th(j-tp) = 15 K/W vs. R_th(j-a) ≈ 300 K/W), power rating (1 W vs. 300 mW), and pinout mapping. Direct substitution requires PCB redesign and thermal validation.

What is the typical Zener voltage at 10 mA test current for BZV49-C15,115?

The datasheet specifies electrical characteristics only at I_Ztest = 5 mA. At 10 mA, voltage increases slightly due to r_dif; extrapolating from r_dif ≤30 Ω yields ~15.15 V (15.0 V + (10−5) mA × 30 Ω), but this is not guaranteed. Designers should operate at 5 mA unless derated per thermal analysis.

Does BZV49-C15,115 have AEC-Q200 qualification for automotive use?

No - the BZV49 series is not listed as AEC-Q200 qualified in Nexperia's official documentation or product selector. While widely used in automotive subsystems, formal qualification requires explicit AEC-Q200 test reports and part numbering suffixes (e.g., "A" grade); this part carries no such designation and should undergo customer-specific stress testing for mission-critical applications.