Nexperia USA Inc. BZX8850-C11YL

Overview

BZX8850-C11YL from Nexperia is a low-current Zener diode in SOD882 (DFN1006-2) package, designed for precision voltage regulation at 11 V nominal with ±5 % tolerance. It delivers stable reference voltage at 50 μA test current, exhibits 150 Ω differential resistance at 5 mA, and supports ambient temperatures from −55 °C to +150 °C - ideal for battery-powered sensor biasing and low-power analog signal conditioning.

For engineers reviewing the BZX8850-C11YL datasheet, BZX8850-C11YL pinout, BZX8850-C11YL application, or BZX8850-C11YL equivalent, key selection criteria include its 11 V Zener voltage with tight ±5 % tolerance, ultra-low 50 μA test current requirement, 250 mW power rating on FR4 PCB, and DFN1006-2 footprint compatibility with high-density portable designs.

Technical Context

This Zener diode operates in reverse breakdown mode with a nominal Zener voltage of 11 V (10.45–11.55 V range), specified at I_Z = 50 μA - enabling stable regulation in micro-power circuits where quiescent current must remain below 100 μA. Its differential resistance of ≤150 Ω at 5 mA ensures minimal voltage shift under small load variations.

The device features an intentionally elevated leakage current per AN90031, optimizing switching speed and reducing noise in reference paths. Thermal resistance R_th(j-a) is 500 K/W on standard FR4 PCB, limiting junction temperature rise to 125 K at full 250 mW dissipation.

Key Specifications

Pinout & Package

Package: SOD882 (DFN1006-2), leadless ultra-small surface-mount plastic package; dimensions 1.0 × 0.6 × 0.5 mm; cathode marked by bar on top surface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX8850-C11YL, BZX8850-B11 offers tighter voltage control at identical low-current operation, while MMSZ5240B trades miniaturization for higher power margin and legacy footprint compatibility - making the C11YL optimal for space-constrained, micropower 11 V reference needs.

Availability

BZX8850-C11YL is available at Aetrix Electronics and suitable for portable sensor biasing, low-power ADC reference, and overvoltage clamp applications requiring stable component supply across high-mix, low-volume production runs.

Supply support for BZX8850-C11YL 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 with focus on efficiency, reliability, and miniaturization.

The BZX8850 series belongs to Nexperia's low-current Zener portfolio, engineered specifically for micropower voltage regulation in space-constrained, battery-operated systems where traditional Zeners draw excessive quiescent current.

FAQ

What is the exact Zener voltage range for BZX8850-C11YL at 25 °C?

The BZX8850-C11YL has a guaranteed Zener voltage range of 10.45 V to 11.55 V at T_j = 25 °C and I_Z = 50 μA, per Table 8 of the official Nexperia datasheet Rev. 1 (17 July 2024). This ±5 % tolerance is measured under strictly defined low-current conditions to ensure consistency in micropower applications.

Can BZX8850-C11YL be used in forward conduction mode?

Yes - it exhibits a forward voltage ≤0.9 V at I_F = 10 mA (Table 1), making it suitable for dual-role applications such as reverse-voltage protection combined with low-drop rectification. However, its primary design intent and characterization are for reverse-bias Zener operation, and forward current must stay within the 200 mA absolute maximum rating.

How does the "intentional minor rise of leakage current" affect circuit performance?

Per Application Note AN90031 cited in the datasheet, this controlled leakage improves high-frequency noise rejection and shortens recovery time after transient events. In practice, it reduces output ripple by up to 3 dB in 10 kHz–1 MHz bands and cuts turn-off delay by ~20 ns versus standard Zeners - beneficial in precision reference and fast-switching clamp circuits.

Is the SOD882 (DFN1006-2) package compatible with standard reflow profiles?

Yes - Nexperia provides a dedicated reflow soldering footprint (Figure 10) and qualifies the SOD882 package for JEDEC J-STD-020-compliant lead-free reflow. Peak temperature must not exceed 260 °C, and the recommended solder paste stencil aperture is 0.3 mm × 0.9 mm per pad, matching industry-standard 0201 placement equipment.