Nexperia USA Inc. BZV85-C39,113

Overview

BZV85-C39,113 from Nexperia is a medium-power Zener voltage regulator diode in a hermetically sealed SOD66 (DO-41) glass package, rated for 39 V nominal working voltage with ±5 % tolerance, 1.3 W total power dissipation at 25 °C ambient, and 60 W non-repetitive peak reverse power handling. It serves as a precision voltage reference or shunt regulator in low-to-medium power linear power supplies and overvoltage protection circuits.

For engineers reviewing the BZV85-C39,113 datasheet, BZV85-C39,113 pinout, BZV85-C39,113 application, or BZV85-C39,113 equivalent, this part is selected for stable DC voltage stabilization where thermal resistance to tie-point (110 K/W), differential resistance (60 Ω), and temperature coefficient (+29.6 mV/K) directly impact regulation accuracy under varying load and temperature conditions.

Technical Context

This Zener diode operates in reverse breakdown mode with a specified test current of 6 mA, delivering a tightly controlled 39 V reference across its cathode–anode terminals. Its junction temperature rating up to 200 °C and storage range from −65 °C to +200 °C support operation in industrial environments with wide thermal excursions.

The device exhibits a positive temperature coefficient of +29.6 mV/K at 6 mA, indicating increasing Zener voltage with rising temperature - a key design consideration when cascading multiple Zeners or compensating for thermal drift in feedback networks.

Key Specifications

Pinout & Package

Hermetically sealed axial-leaded SOD66 (DO-41) glass package with 2-terminal configuration; cathode identified by a colored band on the body.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 1N4739A and BZX85C39, BZV85-C39,113 delivers superior thermal stability (110 K/W R_th(j-t)), tighter tolerance (±5 %), and higher surge capacity (60 W), making it preferred for industrial-grade power regulation where long-term drift and transient immunity are design-critical.

Availability

BZV85-C39,113 is available at Aetrix Electronics and suitable for industrial power supply regulation, overvoltage protection circuits, programmable logic controller I/O modules, and test equipment reference sources requiring stable component supply with guaranteed long-term availability.

Supply support for BZV85-C39,113 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, reliable discrete, logic, and MOSFET devices optimized for efficiency and miniaturization in automotive, industrial, and consumer applications.

The BZV85 series belongs to Nexperia's precision Zener diode product line, engineered specifically for stable voltage reference and shunt regulation in space-constrained, thermally demanding industrial systems where hermetic reliability and tight parametric control are mandatory.

FAQ

What is the maximum continuous power dissipation for BZV85-C39,113 under standard PCB mounting?

BZV85-C39,113 dissipates up to 1.3 W continuously when mounted on a PCB with 1 cm² copper area per lead and leads held at 55 °C at 4 mm from the body. This value drops to 1.0 W with 10 mm lead length at 25 °C ambient, per the Absolute Maximum Ratings table.

How does the temperature coefficient affect regulation accuracy in a 39 V reference circuit?

With a +29.6 mV/K temperature coefficient at 6 mA, BZV85-C39,113 increases its Zener voltage by ~2.96 V over a 100 °C junction temperature rise. For ±0.1 % regulation stability, junction temperature must be controlled within ±3.4 °C - achievable via thermal design or TC compensation using complementary components.

Can BZV85-C39,113 be used in parallel for higher current handling?

No - Zener diodes exhibit manufacturing spread in V_Z and r_dif, causing current imbalance and thermal runaway when paralleled. For higher current, use a single higher-power Zener or implement active regulation with a pass transistor driven by BZV85-C39,113 as reference.

What is the significance of the "C" in BZV85-C39,113?

The "C" denotes the E24 tolerance series (±5 %), distinguishing it from "A" (±1 %) and "B" (±2 %) variants. The "39" specifies nominal Zener voltage of 39 V, and "113" is Nexperia's internal package/bulk ordering code for SOD66 tape-and-reel packaging.