Nexperia USA Inc. BZX8850-C36YL

Overview

BZX8850-C36YL from Nexperia is a low-current Zener diode in SOD882 (DFN1006-2) package, designed for precision voltage regulation at 36 V nominal with ±2 % tolerance. It delivers stable reference voltage at 50 μA test current, exhibits 350 Ω differential resistance at 5 mA, and features 0.05 μA reverse leakage at rated voltage - optimized for battery-powered sensor nodes and portable instrumentation.

For engineers reviewing the BZX8850-C36YL datasheet, BZX8850-C36YL pinout, BZX8850-C36YL application, or BZX8850-C36YL equivalent, this device serves as a compact, low-power voltage reference where tight tolerance, minimal bias current, and ultra-small footprint are critical selection criteria.

Technical Context

This Zener operates in reverse breakdown mode with a nominal Zener voltage of 36 V at I_Z = 50 μA, maintaining regulation across ambient temperatures from −55 °C to +150 °C. Its thermal resistance (junction-to-ambient) is 500 K/W on standard FR4 PCB, limiting continuous power dissipation to 250 mW at T_amb ≤ 25 °C.

The device belongs to the C-tolerance series (±2 %), offering tighter voltage control than the B-series (±5 %). Its intentional low-leakage design minimizes standby current draw while delivering 27.3 V Zener voltage at I_Z = 5 mA and 30.4 V at I_Z = 2 mA - enabling accurate low-current biasing in analog front-ends and ADC reference circuits.

Key Specifications

Pinout & Package

SOD882 (DFN1006-2) is a leadless, surface-mount plastic package with two terminals and a cathode-marked top surface. The marking bar identifies Pin 1 as cathode.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX8850-C36YL, the BZX8850-B36 trades precision for cost in non-critical biasing, while MMSZ5245B offers higher power capacity at the expense of size - making the C36YL optimal for space- and power-constrained precision reference designs.

Availability

BZX8850-C36YL is available at Aetrix Electronics and suitable for portable sensor calibration, IoT node voltage reference, and industrial signal conditioning requiring stable component supply with guaranteed long-term continuity.

Supply support for BZX8850-C36YL 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, logic, and MOSFET devices for automotive, industrial, and consumer markets.

The BZX8850 series targets low-current voltage regulation in space-constrained, battery-sensitive applications - emphasizing ultra-small packaging, low test current specification, and tight tolerance control for precision analog systems.

FAQ

What is the maximum reverse voltage that can be safely applied before breakdown?

The BZX8850-C36YL has a nominal Zener voltage of 36 V, with guaranteed breakdown occurring between 34.2 V and 37.8 V at 50 μA test current. Applying reverse voltage below 34.2 V keeps the device in non-conductive state; exceeding 37.8 V risks uncontrolled conduction or thermal runaway if power dissipation exceeds 250 mW.

Can this Zener diode be used in series with other Zeners to achieve higher reference voltages?

Yes, multiple BZX8850-C36YL units may be cascaded in series to generate higher reference voltages, provided each device receives sufficient bias current (≥50 μA) and total power dissipation remains within 250 mW per device. Thermal coupling and voltage tolerance stacking must be accounted for in layout and tolerance analysis.

Is the SOD882 package compatible with standard reflow soldering profiles?

Yes, the SOD882 package is qualified for lead-free reflow soldering per J-STD-020. Recommended peak temperature is 260 °C with 60-second duration above 217 °C. Figure 10 in the datasheet provides the exact solder land pattern (0.6 mm pad width, 0.9 mm length) for reliable attachment.

How does temperature affect the Zener voltage accuracy in real-world operation?

The BZX8850-C36YL has a temperature coefficient of +0.05 mV/K, meaning its Zener voltage increases by approximately 0.05 mV per Kelvin rise in junction temperature. Over a −40 °C to +125 °C operating range, this contributes up to ±8.3 mV drift - negligible for most 36 V reference applications but relevant in high-precision metrology designs.