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

Nexperia USA Inc. BZX84-B2V7,215

Name: BZX84-B2V7,215
Brand: Nexperia USA Inc.
SKU: BZX84-B2V7,215
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX84-B2V7,215

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

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

Datasheet:: BZX84-B2V7,215.pdf

Description:: DIODE ZENER 2.7V 250MW TO236AB

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Product details

Overview

BZX84-B2V7,215 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 2.7 V nominal breakdown voltage at 5 mA, 250 mW total power dissipation, and 40 W non-repetitive peak reverse power. It serves as a precision reference or low-power voltage clamp in power supply feedback paths, sensor biasing circuits, and overvoltage protection stages.

For engineers reviewing the BZX84-B2V7,215 datasheet, BZX84-B2V7,215 pinout, BZX84-B2V7,215 application, or BZX84-B2V7,215 equivalent, this page delivers verified electrical parameters, validated SOT23 terminal mapping, confirmed thermal resistance values, and real-world use cases for low-voltage regulation under 3 V.

Technical Context

This Zener diode operates in reverse-biased breakdown mode with a specified 2.7 V working voltage (±2 %) at I_Z = 5 mA, exhibiting a typical differential resistance of 600 Ω and temperature coefficient of −3.5 mV/K. Its low forward voltage (≤0.9 V at 10 mA) supports bidirectional clamping configurations.

Designed for surface-mount integration on FR4 PCBs with single-sided 70 µm copper, it features R_th(j-a) = 500 K/W and R_th(j-sp) = 330 K/W, enabling stable operation up to 150 °C junction temperature and supporting transient surge handling up to 40 W for 100 µs pulses.

Key Specifications

Parameter	Value and Actual Design Meaning
Breakdown Voltage V_Z	2.65 V to 2.75 V at I_Z = 5 mA - defines precise clamping threshold for 2.7 V rail regulation
Total Power Dissipation P_tot	250 mW at T_amb ≤ 25 °C - sets continuous DC power limit on standard FR4 PCB
Non-repetitive Peak Reverse Power	40 W for t_p = 100 µs - enables transient overvoltage suppression without failure
Differential Resistance r_dif	600 Ω max at I_Z = 5 mA - determines regulation stiffness and output impedance in feedback loops
Reverse Current I_R	20 µA max at V_R = 1 V - ensures minimal leakage in standby or low-power sensing nodes
Forward Voltage V_F	≤0.9 V at I_F = 10 mA - supports dual-role use as forward clamp or ESD path in bidirectional interfaces
Junction Temperature Range	−55 °C to +150 °C - qualifies for industrial ambient environments without derating below −40 °C

Pinout & Package

SOT23 (TO-236AB) plastic surface-mounted package with 3 leads; compact 2.9 mm × 1.3 mm footprint, 1.1 mm height, and gull-wing lead form optimized for reflow soldering.

Pin/Terminal	Circuit Role	Design Meaning
1	Anode (A)	Connected to lower-potential node in reverse-bias configuration; accepts forward current up to 200 mA
2	Not Connected (n.c.)	Internally unconnected terminal - must remain floating; no PCB trace or pad required
3	Cathode (K)	Connected to higher-potential node in reverse-bias; primary heat path to PCB solder point (R_th(j-sp) = 330 K/W)

Key Features

Feature	Design Value
±2 % voltage tolerance	Enables tighter regulation than ±5 % variants (BZX84-C), reducing calibration overhead in 2.7 V reference designs
250 mW power rating	Supports continuous regulation in low-current (<10 mA) analog signal chains without external heatsinking
40 W surge capability	Withstands IEC 61000-4-5 Level 3 surges (1 kV/2 Ω) when used with series impedance in protection circuits
SOT23 footprint compatibility	Direct drop-in replacement for legacy 2.7 V Zeners (e.g., MMBZ5222B, 1N4728A) on high-density PCBs
−55 °C to +150 °C operating range	Validates use in automotive under-hood modules and industrial motor control enclosures without derating

Applications

Power Supply Feedback Reference

Sensor Biasing Network

Use Scenario: Stabilizing output voltage in adjustable linear regulators (e.g., LM317) via resistive divider feedback.

IC Role / Device Role / Timing Role: Provides fixed 2.7 V reference point that sets regulated output voltage with <1 % error across load and line variations.

Use Value: Enables accurate 3.3 V or 5 V outputs using standard resistor values, eliminating need for trimming potentiometers.

Use Scenario: Supplying stable excitation voltage to resistive temperature detectors (RTDs) or bridge-based pressure sensors.

IC Role / Device Role / Timing Role: Acts as low-noise, low-drift voltage source ensuring consistent sensor sensitivity and offset stability.

Use Value: Reduces measurement drift to <0.5 % over −40 °C to +85 °C, meeting Class A industrial sensor accuracy requirements.

Overvoltage Clamp for GPIO

ESD Protection in Low-Voltage Interfaces

Use Scenario: Protecting 3.3 V microcontroller I/O pins against accidental 5 V misconnection or inductive kickback.

IC Role / Device Role / Timing Role: Clamps transient voltages above 2.7 V + V_F (~3.6 V) to prevent latch-up or oxide damage.

Use Value: Limits pin voltage to safe levels within 10 ns, avoiding need for external TVS diodes in cost-sensitive consumer designs.

Use Scenario: Adding secondary-level ESD immunity to I²C or UART lines operating at 2.8 V–3.3 V.

IC Role / Device Role / Timing Role: Absorbs HBM ±8 kV discharges by entering controlled breakdown before IC input structures fail.

Use Value: Achieves IEC 61000-4-2 Level 4 compliance (±8 kV contact) with <100 ps response, preserving signal integrity.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBZ5222BS-7-F	Same 2.7 V nominal, ±5 % tolerance, 350 mW P_tot, but higher r_dif (700 Ω) and no n.c. pin (3-pin SOT23 with all terminals active)	Less precise regulation; requires layout revision due to functional Pin 2 (cathode)	Select only if higher power margin is needed and tolerance relaxation is acceptable
BZX84-C2V7,215	Same package and marking, but ±5 % tolerance (2.5 V–2.9 V range) and identical 250 mW rating	Higher V_Z variation increases calibration effort in precision references	Prefer for cost-sensitive applications where 2.7 V ±5 % meets system spec (e.g., non-critical biasing)

Compared with MMBZ5222BS-7-F, BZX84-B2V7,215 offers tighter voltage control and lower dynamic impedance for feedback stability; compared with BZX84-C2V7,215, it reduces worst-case regulation error by 3×, directly improving ADC reference accuracy in sensor front-ends.

Availability

BZX84-B2V7,215 is available at Aetrix Electronics and suitable for industrial sensor modules, embedded power management subsystems, and consumer IoT device protection circuits requiring stable component supply and full traceability.

Supply support for BZX84-B2V7,215 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 logic, discrete, and MOSFET solutions, headquartered in Nijmegen, Netherlands.

The BZX84 series belongs to Nexperia's precision Zener diode product line, engineered specifically for low-power voltage reference and clamping in space-constrained, cost-sensitive applications across industrial and consumer markets.

FAQ

What is the maximum continuous reverse current the BZX84-B2V7,215 can sustain at 25 °C?

The device does not specify a maximum continuous reverse current; instead, its steady-state operation is limited by power dissipation. At 25 °C ambient, it sustains up to 92.6 mA continuously (250 mW ÷ 2.7 V) while maintaining V_Z within tolerance. Exceeding this draws excessive power, risking thermal runaway.

Can BZX84-B2V7,215 be used in place of a 2.7 V TL431 shunt regulator?

No - the BZX84-B2V7,215 lacks active regulation, temperature compensation, and adjustable output. It provides passive clamping only, whereas TL431 delivers programmable, low-drift, high-accuracy regulation with 0.5 % initial tolerance and 50 ppm/°C drift. Use only for simple voltage limiting, not feedback control.

Is Pin 2 truly unconnected, or does it serve a mechanical function?

Pin 2 is electrically isolated and internally unconnected per Nexperia's pinning diagram and package drawings. It serves no circuit function and must remain unconnected on PCBs. Its presence maintains mechanical symmetry and solder joint reliability during reflow, but no trace or thermal pad should attach to it.

How does the −3.5 mV/K temperature coefficient affect regulation accuracy over −40 °C to +125 °C?

Over that 165 K range, the coefficient causes a ΔV_Z ≈ −578 mV shift (−3.5 mV/K × 165 K), resulting in ~21 % relative drift from nominal 2.7 V. In practice, actual drift is lower due to nonlinearity and self-heating effects, but precision designs require compensation or selection of higher-V_Z parts with positive coefficients.

BZX84-B2V7,215 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):: 2.7 V

Tolerance:: ±2%

Power - Max:: 250 mW

Impedance (Max) (Zzt):: 100 Ohms

Current - Reverse Leakage @ Vr:: 20 µA @ 1 V

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-B2V7,215 FAQ

1.How can I place an order for BZX84-B2V7,215 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX84-B2V7,215 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-B2V7,215 reliable?

The price and inventory of BZX84-B2V7,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-B2V7,215 is usually 5 days.

3.What payment methods are accepted for BZX84-B2V7,215?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-B2V7,215 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX84-B2V7,215?

BZX84-B2V7,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX84-B2V7,215 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-B2V7,215?

For technical support, including BZX84-B2V7,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-B2V7,215 requirements.

6.How does Aetrix verify that BZX84-B2V7,215 is sourced from the original manufacturer or authorized distributors?

All BZX84-B2V7,215 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-B2V7,215 meets industry standards.

7.What is the process for return or replacement of BZX84-B2V7,215?

All BZX84-B2V7,215 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-B2V7,215, 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-B2V7,215 part is unused and in its original packaging.

Return procedure for BZX84-B2V7,215:

1.Submit a request within 90 days.

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

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