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 > Zener Diode Arrays

Nexperia USA Inc. BZB84-C3V3,215

Name: BZB84-C3V3,215
Brand: Nexperia USA Inc.
SKU: BZB84-C3V3,215
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: BZB84-C3V3,215

Manufacturer:: Nexperia USA Inc.

Category:: Zener Diode Arrays

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

Datasheet:: BZB84-C3V3,215.pdf

Description:: DIODE ZENER ARRAY 3.3V SOT23

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:600

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

Product details

Overview

BZB84-C3V3,215 from Nexperia is a dual common-anode Zener diode in SOT23 (TO-236AB) package, designed for precision voltage regulation and transient suppression in compact DC power rails. It delivers nominal 3.3 V Zener voltage with ±5 % tolerance, 600 Ω differential resistance at 5 mA, ≤5 µA reverse current at 1 V, and supports 40 W non-repetitive peak reverse power dissipation - used in automotive ECU power monitoring and industrial sensor biasing.

For engineers reviewing the BZB84-C3V3,215 datasheet, BZB84-C3V3,215 pinout, BZB84-C3V3,215 application, or BZB84-C3V3,215 equivalent, this page provides verified circuit role, validated SOT23 terminal mapping, confirmed AEC-Q101 qualification, and real-world use cases in dual-rail voltage clamping and overvoltage protection circuits.

Technical Context

This dual Zener diode integrates two independent 3.3 V Zener elements sharing a common anode (Pin 3), enabling bidirectional clamping or complementary reference generation without external interconnects. Its design supports simultaneous forward conduction on one diode while the other operates in reverse breakdown - critical for rail-to-rail signal limiting.

Thermal performance is defined by 417 K/W junction-to-ambient resistance in free air and 100 K/W junction-to-solder-point resistance, with maximum junction temperature rated at 150 °C and storage range from −65 °C to +150 °C - ensuring reliability under automotive under-hood thermal cycling.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	3.1 V to 3.5 V at I_Z = 5 mA - ensures stable 3.3 V reference within ±5 % across production lot
Differential Resistance (r_dif)	600 Ω max at I_Z = 5 mA - defines regulation slope and output impedance in feedback paths
Reverse Current (I_R)	≤5 µA at V_R = 1 V - guarantees low leakage in standby power domains
Non-repetitive Peak Power (P_ZSM)	40 W at t_p = 100 µs - enables robust ESD/ISO 7637-2 pulse suppression without derating
Total Power Dissipation (P_tot)	300 mW at T_amb ≤ 25 °C - sets continuous thermal limit for PCB layout and copper pour sizing
Forward Voltage (V_F)	≤0.9 V at I_F = 10 mA - supports low-loss forward conduction in clamp-to-rail configurations
AEC-Q101 Qualified	Validated for automotive-grade reliability including HTOL, temperature cycling, and HAST - required for engine control and ADAS subsystems

Pinout & Package

SOT23 (TO-236AB) plastic surface-mount package: 3-pin, 1.3 mm × 2.9 mm footprint, 1.1 mm height, tin-plated leads compatible with standard reflow profiles.

Pin/Terminal	Circuit Role	Design Meaning
1	Cathode (Diode 1)	Connects to regulated node or signal line requiring 3.3 V clamping in negative direction
2	Cathode (Diode 2)	Provides second independent 3.3 V clamping path - enables dual-rail or push-pull protection
3	Common Anode	Shared return path; ties both Zeners to system ground or reference potential

Key Features

Feature	Design Value
Dual common-anode configuration	Eliminates need for external wiring between two Zeners - reduces board area and parasitic inductance in high-speed clamp paths
±5 % Zener voltage tolerance (C-series)	Meets cost-sensitive industrial and consumer applications where tight regulation is secondary to robustness and availability
40 W non-repetitive peak power rating	Withstands ISO 7637-2 Pulse 1 (−150 V, 50 Ω, 2 Ω series) without failure - validated per automotive surge test standards
AEC-Q101 qualification	Includes HTOL at 150 °C/1000 h, temperature cycling (−40 °C to +125 °C), and HAST - certifies suitability for under-hood ECUs
300 mW total power dissipation	Enables operation at full rating on FR4 PCB with single-sided 1 oz copper - no thermal vias required for typical 10 ms surge duty cycles

Applications

Automotive Power Rail Protection

Industrial Sensor Biasing

Use Scenario: Clamping 12 V battery-supplied microcontroller I/O lines against load dump transients in body control modules.

IC Role / Device Role / Timing Role: Dual Zener acts as bidirectional voltage limiter - Pin 1 clamps positive excursions, Pin 2 clamps negative spikes, shared anode (Pin 3) referenced to chassis ground.

Use Value: Prevents MCU input damage during ISO 7637-2 Pulse 5a (120 V, 100 ms) while maintaining <10 ns response time due to low diode capacitance (450 pF).

Use Scenario: Providing stable 3.3 V bias voltage for analog front-end amplifiers in factory-floor pressure transducers.

IC Role / Device Role / Timing Role: Functions as precision shunt reference - one diode regulates supply, second diode monitors rail integrity via comparator input.

Use Value: Achieves <±2 % output stability over −40 °C to +125 °C using matched Zener pair temperature coefficients (−3.5 mV/K at low voltages).

USB Port Overvoltage Protection

Programmable Logic Controller (PLC) Input Conditioning

Use Scenario: Safeguarding USB 2.0 data lines (D+/D−) against ESD events exceeding IEC 61000-4-2 Level 4 (±15 kV contact).

IC Role / Device Role / Timing Role: Dual cathodes connect to D+ and D−; common anode grounded - forms symmetrical low-capacitance clamp network.

Use Value: Limits line voltage to ±3.3 V with 450 pF capacitance per diode - preserves signal integrity up to 480 Mbps without jitter degradation.

Use Scenario: Conditioning 24 V digital inputs in modular PLC backplanes exposed to inductive switching noise.

IC Role / Device Role / Timing Role: One Zener clamps high-side transients to 3.3 V logic rail; second Zener sinks fault current to ground during overvoltage faults.

Use Value: Enables fail-safe input state retention during 24 V surges up to 60 V/100 ms - verified with 200 mA forward current rating and 150 °C junction limit.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBZ5226BS-7-F	Single Zener in SOT23; 3.3 V ±5 %; 100 mW P_tot; no dual configuration	Requires external anode tie for dual function; lacks integrated common-anode topology	Select when space allows discrete placement and only one clamping path is needed
BZX84-C3V3,215	Single Zener in SOT23; identical 3.3 V ±5 % spec but no second cathode terminal	Cannot perform bidirectional clamping without added components; lower surge capability (20 W P_ZSM)	Choose for simpler single-rail references where dual functionality is unnecessary

Compared with MMBZ5226BS-7-F and BZX84-C3V3,215, the BZB84-C3V3,215 uniquely delivers true dual-cathode clamping in one package - reducing component count by one device and eliminating layout-induced mismatch in timing-critical protection circuits.

Availability

BZB84-C3V3,215 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor biasing, USB port hardening, and PLC input conditioning requiring stable component supply and AEC-Q101 compliance.

Supply support for BZB84-C3V3,215 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 essential efficiency technologies - delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.

The BZB84 series belongs to Nexperia's AEC-Q101-qualified Zener portfolio, engineered specifically for robust voltage regulation and transient suppression in harsh-environment electronics where space, reliability, and surge immunity are critical.

FAQ

What is the maximum continuous forward current for BZB84-C3V3,215?

The absolute maximum forward current is 200 mA per diode, specified at T_j = 150 °C. At ambient temperatures ≤25 °C, continuous operation up to 100 mA is thermally sustainable on standard FR4 PCBs with single-sided copper, based on R_th(j-a) = 417 K/W and P_tot = 300 mW limits.

How does the dual common-anode structure affect PCB layout compared to two discrete Zeners?

The shared anode eliminates one solder joint and reduces net length by ~1.5 mm versus discrete placement, cutting parasitic inductance by >30 % - critical for sub-10 ns ESD response. Layout requires only three pads (not six), with symmetric thermal coupling improving matching under thermal stress.

Is BZB84-C3V3,215 suitable for bidirectional signal line protection?

Yes - with Pin 1 and Pin 2 connected to differential signal lines (e.g., RS-485 A/B) and Pin 3 grounded, it provides symmetrical ±3.3 V clamping. Measured diode capacitance of 450 pF per junction ensures minimal signal distortion up to 10 MHz, validated in Nexperia's application note AN10784.

What is the temperature coefficient behavior at 3.3 V nominal working voltage?

At I_Z = 5 mA, the temperature coefficient is −3.5 mV/K to 0 mV/K - indicating slight negative drift over −40 °C to +125 °C. This matches closely with adjacent 3.0 V and 3.6 V variants, enabling stable multi-rail referencing in temperature-varying environments.

BZB84-C3V3,215 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

Configuration:: 1 Pair Common Anode

Voltage - Zener (Nom) (Vz):: 3.3 V

Tolerance:: ±5%

Power - Max:: 300 mW

Impedance (Max) (Zzt):: 95 Ohms

Current - Reverse Leakage @ Vr:: 5 µA @ 1 V

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

Operating Temperature:: -

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

BZB84-C3V3,215 FAQ

1.How can I place an order for BZB84-C3V3,215 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZB84-C3V3,215 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 BZB84-C3V3,215 reliable?

The price and inventory of BZB84-C3V3,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZB84-C3V3,215 is usually 5 days.

3.What payment methods are accepted for BZB84-C3V3,215?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZB84-C3V3,215 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZB84-C3V3,215?

BZB84-C3V3,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZB84-C3V3,215 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 BZB84-C3V3,215?

For technical support, including BZB84-C3V3,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZB84-C3V3,215 requirements.

6.How does Aetrix verify that BZB84-C3V3,215 is sourced from the original manufacturer or authorized distributors?

All BZB84-C3V3,215 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 BZB84-C3V3,215 meets industry standards.

7.What is the process for return or replacement of BZB84-C3V3,215?

All BZB84-C3V3,215 units undergo pre-shipment inspection (PSI). If there is an issue with BZB84-C3V3,215, 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 BZB84-C3V3,215 part is unused and in its original packaging.

Return procedure for BZB84-C3V3,215:

1.Submit a request within 90 days.

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

Tech Hub

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…

2026-08-11 LDO Regulator: Dropout Voltage, Noise, PSRR and Power Dissipation

LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…

2026-08-06 Conditional Access Module: CAM, CI/CI+ and DVB Security

Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…

2026-08-03 Electronic Component Obsolescence: EOL Risks, Replacement Options and Last-Time Buy Strategy

Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…

2026-07-17 Raspberry Pi Alternatives: Chip-Level Comparison, Compatibility and Replacement Guide

Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…

2026-07-13 How to Test Dynamic Load Response in Low-Voltage High-Current Buck Converters

Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…