Nexperia USA Inc. BZV55-C9V1,115

Overview

BZV55-C9V1,115 from Nexperia is a ±5% tolerance silicon Zener diode in a hermetically sealed SOD80C glass SMD package, rated for 9.1 V nominal regulation at 5 mA, with 400 mW total power dissipation at T_amb ≤ 50 °C and 150 Ω typical differential resistance at I_Z = 5 mA. It serves as a precision low-power voltage reference or shunt regulator in analog sensor signal conditioning circuits.

For engineers reviewing the BZV55-C9V1,115 datasheet, BZV55-C9V1,115 pinout, BZV55-C9V1,115 application, or BZV55-C9V1,115 equivalent, key selection criteria include its 9.1 V Zener voltage tolerance (±5%), 150 Ω dynamic impedance, −3.8 to +7.0 mV/K temperature coefficient range, and SOD80C thermal resistance of 300 K/W to solder point.

Technical Context

This Zener diode operates in reverse breakdown mode with a specified nominal Zener voltage of 9.1 V at I_Z = 5 mA, exhibiting a temperature coefficient between −3.8 mV/K (min) and +7.0 mV/K (max) across working current. Its low 150 Ω differential resistance ensures stable regulation under small-signal load variations.

The device uses a hermetically sealed glass SOD80C package with 2-terminal axial geometry, cathode marked by a band, and is characterized for non-repetitive peak reverse power dissipation up to 40 W at t_p = 100 μs - enabling transient overvoltage clamping in low-energy protection circuits.

Key Specifications

Pinout & Package

The BZV55-C9V1,115 is housed in a two-terminal SOD80C surface-mount glass package with cathode identified by a visible marking band. The device has no internal circuitry beyond the Zener junction and requires no external biasing components.

Key Features

Applications

Availability

BZV55-C9V1,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, low-power microcontroller reference designs, and power supply overvoltage protection requiring stable component supply and traceable sourcing.

Supply support for BZV55-C9V1,115 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 semiconductor manufacturer specializing in high-performance logic, discrete, and MOSFET devices, with headquarters in Nijmegen, Netherlands.

The BZV55 series belongs to Nexperia's precision Zener diode product line, engineered for stable low-power voltage regulation in space-constrained SMD applications where hermetic reliability and tight parametric control are essential.

FAQ

What is the maximum continuous Zener current for BZV55-C9V1,115 at 25 °C ambient?

The device supports a maximum forward current of 250 mA, but continuous Zener operation is limited by power dissipation. At T_amb = 25 °C, P_tot = 500 mW applies, yielding I_Z(max) ≈ 55 mA (500 mW ÷ 9.1 V). Derating begins above 50 °C ambient per the 400 mW limit.

How does the temperature coefficient affect regulation accuracy over −40 °C to +125 °C?

With a specified S_Z range of −3.8 to +7.0 mV/K, worst-case V_Z drift across 165 K ΔT is ±1.16 V. At 9.1 V nominal, this represents ±12.7% variation - necessitating system-level compensation or use within narrower temperature bands for high-accuracy applications.

Can BZV55-C9V1,115 replace BZX55-C9V1 in existing PCB layouts?

Yes - both share identical SOD80C package dimensions, pinout (cathode band), and electrical specifications. The BZV55-C9V1,115 offers equivalent Zener voltage, power rating, and thermal performance, making it a direct drop-in replacement without layout modification.

What is the typical junction-to-solder-point thermal resistance, and how does it impact PCB layout?

R_th(j-sp) is 300 K/W, meaning a 100 mW steady-state dissipation causes ~30 K junction-to-solder-point rise. To maintain reliability, designers should use ≥20 mm² copper pour connected directly to both terminals and avoid narrow traces that increase thermal resistance beyond the specified value.