Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Nexperia USA Inc. BZX84-A16,215

Name: BZX84-A16,215
Brand: Nexperia USA Inc.
SKU: BZX84-A16,215
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: BZX84-A16,215

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: BZX84-A16,215.pdf

Description:: DIODE ZENER 16V 250MW TO236AB

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:28,618

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

BZX84-A16,215 from Nexperia is a ±1 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 15.84 V to 16.16 V nominal breakdown at I_Z = 5 mA, with 250 mW total power dissipation and 200 mA maximum forward current. It provides precision voltage reference and overvoltage clamping in low-power analog supply rails and signal-level protection circuits.

For engineers reviewing the BZX84-A16,215 datasheet, BZX84-A16,215 pinout, BZX84-A16,215 application, or BZX84-A16,215 equivalent, key selection criteria include Zener voltage tolerance (±1 %), thermal resistance (330 K/W junction-to-solder-point), non-repetitive peak reverse power (40 W), and SOT23 footprint compatibility with high-density PCB layouts.

Technical Context

This discrete Zener diode operates in reverse-biased breakdown mode to maintain stable voltage across its terminals under varying load and temperature conditions. Its differential resistance of ≤200 Ω at I_Z = 5 mA ensures low dynamic impedance for effective regulation, while the temperature coefficient of +11.2 mV/K supports predictable drift behavior in ambient ranges from −55 °C to +150 °C.

The device features a three-terminal SOT23 configuration with anode (Pin 1), unconnected (Pin 2), and cathode (Pin 3), enabling standard cathode-anode orientation for series-shunt regulation topologies. Its 40 W non-repetitive peak reverse power rating allows transient surge suppression up to 100 μs pulse width without degradation when mounted on FR4 PCB with standard footprint.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	15.84 V to 16.16 V at I_Z = 5 mA - defines precise regulation point for 16 V nominal rail stabilization
Tolerance	±1 % - enables tight voltage margin control in feedback networks and reference circuits
Total Power Dissipation	250 mW at T_amb ≤ 25 °C - sets continuous DC power limit for thermal design on standard FR4 PCB
Non-repetitive Peak Reverse Power	40 W - supports transient overvoltage clamping for ESD/surge events up to 100 μs duration
Differential Resistance	≤200 Ω at I_Z = 5 mA - ensures minimal output voltage variation under load current changes
Reverse Current (I_R)	≤0.05 μA at V_R = 12.8 V - guarantees low leakage in high-impedance biasing and sensing paths
Junction Temperature Range	−55 °C to +150 °C - validates operation in extended industrial environments without derating

Pinout & Package

SOT23 (TO-236AB) plastic surface-mounted package with 3 leads; 1.9 mm × 1.1 mm body size, 0.45 mm typical lead pitch, and 0.9 mm height - optimized for automated placement and reflow soldering on high-density PCBs.

Pin/Terminal	Circuit Role	Design Meaning
1	Anode	Forward current entry point; connected to lower-potential node in Zener shunt configuration
2	Not Connected	Electrically isolated terminal; no internal bond wire or die connection - must remain floating
3	Cathode	Reverse-bias voltage reference node; connected to regulated output or clamp point in circuit

Key Features

Feature	Design Value
Low Differential Resistance	≤200 Ω at 5 mA - minimizes regulation error during load transients in feedback loops
Precision Voltage Tolerance	±1 % - eliminates need for external trimming in 16 V reference designs
High Surge Withstand	40 W non-repetitive peak reverse power - absorbs IEC 61000-4-2 ESD pulses without failure
Thermal Performance	330 K/W junction-to-solder-point resistance - enables reliable operation with minimal copper area
Wide Operating Temperature	−55 °C to +150 °C - supports deployment in automotive under-hood and industrial motor-control modules

Applications

Power Supply Reference

Signal-Level Clamp

Use Scenario: Stabilizing 16 V auxiliary rail in microcontroller-based sensor interface module.

IC Role / Device Role / Timing Role: Shunt voltage reference providing feedback to adjustable LDO controller.

Use Value: ±1 % tolerance ensures <160 mV absolute error in 16 V rail, meeting ADC reference stability requirements.

Use Scenario: Protecting GPIO input of ARM Cortex-M0+ against 24 V field-wiring faults.

IC Role / Device Role / Timing Role: Reverse-biased clamping element limiting input voltage to safe logic threshold.

Use Value: 40 W surge rating absorbs 100 μs transients without latch-up, preserving MCU input integrity.

Temperature-Compensated Bias

Low-Power Sensor Excitation

Use Scenario: Generating stable 16 V bias for RTD measurement bridge in industrial temperature transmitter.

IC Role / Device Role / Timing Role: Precision Zener source compensating for op-amp input offset drift.

Use Value: +11.2 mV/K temperature coefficient matches typical instrumentation amplifier drift profile.

Use Scenario: Exciting 350 Ω strain gauge in battery-powered handheld test equipment.

IC Role / Device Role / Timing Role: Low-noise, low-current voltage source powering Wheatstone bridge.

Use Value: 0.05 μA reverse leakage at 12.8 V prevents measurable bridge imbalance error.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor MMBZ5245B	15 V nominal, ±5 % tolerance, 225 mW P_tot, SOT23 package	Lower precision and power rating; suitable only where 15 V and ±5 % are acceptable	Select when cost sensitivity outweighs voltage accuracy and surge robustness requirements
Vishay BZX84-C16	15.3 V to 17.1 V, ±5 % tolerance, same SOT23 footprint and 250 mW rating	Wider voltage spread increases risk of out-of-spec operation in tight-margin 16 V systems	Choose only if legacy design uses C-series and board-level recalibration is feasible

Compared with MMBZ5245B and BZX84-C16, BZX84-A16,215 delivers tighter voltage control (±1 % vs. ±5 %), higher surge immunity (40 W vs. 30 W typical), and lower differential resistance (200 Ω vs. 300–500 Ω), making it optimal for precision analog interfaces and ruggedized industrial nodes.

Availability

BZX84-A16,215 is available at Aetrix Electronics and suitable for industrial sensor modules, portable medical diagnostics, and programmable logic controller (PLC) I/O conditioning requiring stable component supply and long-term obsolescence management.

Supply support for BZX84-A16,215 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 and logic devices, serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.

The BZX84 series belongs to Nexperia's precision Zener diode product line, engineered specifically for low-power voltage reference, overvoltage protection, and biasing functions in space-constrained SMT applications.

FAQ

What is the maximum continuous reverse current this diode can sustain?

The BZX84-A16,215 is not rated for continuous reverse conduction; it operates in Zener breakdown mode with maximum DC power dissipation of 250 mW. At its nominal 16 V Zener voltage, this corresponds to a maximum steady-state reverse current of 15.6 mA - exceeding this value risks thermal runaway unless actively cooled.

Can Pin 2 be used as a heatsink or grounded for thermal improvement?

No - Pin 2 is internally not connected (n.c.) and electrically isolated from the silicon die. Connecting it to ground, V_CC, or a heatsink provides no thermal or electrical benefit and may introduce parasitic coupling in high-frequency circuits. Thermal performance relies solely on Pins 1 and 3 solder joints and PCB copper area.

How does the +11.2 mV/K temperature coefficient affect regulation accuracy over temperature?

Over a −40 °C to +85 °C ambient range, the Zener voltage shifts by approximately ±1.4 V from nominal 16 V - a ±8.8 % deviation. This is inherent to the device physics and must be accounted for in system-level calibration; it is not a defect but a specified parameter per Table 8.

Is this part qualified for automotive applications?

No - the BZX84-A16,215 is explicitly designated as non-automotive qualified per Nexperia's Rev. 7 datasheet. Automotive-grade alternatives (e.g., BZX84-Q series) undergo additional AEC-Q101 stress testing and have separate part numbering; this variant lacks those qualifications and should not be used in safety-critical vehicle systems.

BZX84-A16,215 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: BZX84

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 16 V

Tolerance:: ±1%

Power - Max:: 250 mW

Impedance (Max) (Zzt):: 40 Ohms

Current - Reverse Leakage @ Vr:: 50 nA @ 700 mV

Voltage - Forward (Vf) (Max) @ If:: 900 mV @ 10 mA

Operating Temperature:: -65°C ~ 150°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

BZX84-A16,215 FAQ

1.How can I place an order for BZX84-A16,215 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX84-A16,215 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for BZX84-A16,215 reliable?

The price and inventory of BZX84-A16,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-A16,215 is usually 5 days.

3.What payment methods are accepted for BZX84-A16,215?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-A16,215 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX84-A16,215?

BZX84-A16,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX84-A16,215 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for BZX84-A16,215?

For technical support, including BZX84-A16,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-A16,215 requirements.

6.How does Aetrix verify that BZX84-A16,215 is sourced from the original manufacturer or authorized distributors?

All BZX84-A16,215 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BZX84-A16,215 meets industry standards.

7.What is the process for return or replacement of BZX84-A16,215?

All BZX84-A16,215 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-A16,215, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The BZX84-A16,215 part is unused and in its original packaging.

Return procedure for BZX84-A16,215:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…