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

Diodes Incorporated BZX84B7V5-7-F

Name: BZX84B7V5-7-F
Brand: Diodes Incorporated
SKU: BZX84B7V5-7-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX84B7V5-7-F

Manufacturer:: Diodes Incorporated

Category:: Single Zener Diodes

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

Datasheet:: BZX84B7V5-7-F.pdf

Description:: DIODE ZENER 7.5V 300MW SOT23

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Product details

Overview

BZX84B7V5-7-F from Diodes Incorporated is a precision 7.5 V ±2% tolerance Zener diode in SOT23 package, rated for 350 mW power dissipation at ambient temperature, with 15 Ω dynamic impedance at 5 mA test current and 2.5 mV/°C positive temperature coefficient - used for voltage regulation and reference in low-power analog circuits.

For engineers reviewing the BZX84B7V5-7-F datasheet, BZX84B7V5-7-F pinout, BZX84B7V5-7-F application, or BZX84B7V5-7-F equivalent, key selection criteria include Zener voltage accuracy, thermal stability across -65°C to +150°C, low reverse leakage (≤1.0 µA at 5.0 V), and AEC-Q101 qualification for automotive-grade reliability.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain stable voltage under varying load and temperature conditions. Its 7.5 V nominal Zener voltage is specified at 5.0 mA test current, with tight ±2% tolerance and low 15 Ω impedance ensuring minimal voltage deviation during transient current changes.

The device exhibits a +2.5 mV/°C temperature coefficient above 6 V, enabling predictable drift compensation in reference designs. It is qualified to AEC-Q101, confirming suitability for automotive electronics where thermal cycling and long-term stability are critical.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	7.5 V nominal, 7.35–7.65 V range at 5 mA - ensures precise voltage clamping in feedback loops and references.
Power Dissipation	350 mW at ambient temperature - supports continuous operation in compact PCB layouts without forced cooling.
Zener Impedance (Z_ZT)	15 Ω at 5 mA - minimizes output voltage variation under load current shifts in regulator circuits.
Reverse Leakage (I_R)	≤1.0 µA at 5.0 V - reduces quiescent current loss in battery-powered voltage monitor applications.
Temperature Coefficient	+2.5 mV/°C - enables predictable voltage drift correction in temperature-compensated references.
Operating Temperature	-65°C to +150°C - meets extended-range requirements for under-hood automotive and industrial control modules.
Package	SOT23 - surface-mount footprint compatible with automated pick-and-place and reflow assembly.

Pinout & Package

Package: SOT23 - three-terminal plastic-molded case with matte tin-plated Alloy 42 leadframe; polarity marked on top surface per schematic diagram (cathode band indicated).

Pin/Terminal	Circuit Role	Design Meaning
Anode (Pin 1)	Forward conduction terminal	Connected to lower potential node; enables standard forward-bias testing and reverse-bias Zener operation.
Cathode (Pin 2)	Zener breakdown terminal	Connected to higher potential node; defines regulated output voltage when reverse biased above V_Z.
No-Connect / Heat Sink (Pin 3)	Thermal relief pad	Internally connected to cathode in most variants; enhances thermal dissipation and mechanical stability in SOT23 layout.

Key Features

Feature	Design Value
±2% Zener voltage tolerance	Reduces need for post-assembly trimming in precision reference circuits.
AEC-Q101 qualification	Validates robustness for automotive infotainment, body control, and sensor interface modules.
Lead-free, halogen- and antimony-free "Green" construction	Meets RoHS 3 (2015/863/EU) and automotive environmental compliance mandates.
Moisture Sensitivity Level 1	Eliminates bake preconditioning before reflow, lowering manufacturing cost and cycle time.

Applications

Power Supply Reference

Overvoltage Protection

Use Scenario: Stabilizing feedback voltage in low-current linear regulators and DC-DC converter error amplifiers.

IC Role / Device Role / Timing Role: Precision voltage reference element providing stable 7.5 V setpoint for error comparator inputs.

Use Value: Maintains ±0.15 V regulation window over temperature, reducing output drift in 3.3 V/5 V rail monitors.

Use Scenario: Clamping transient surges on I/O lines in automotive microcontroller peripherals.

IC Role / Device Role / Timing Role: Reverse-biased shunt protector diverting ESD or load-dump energy above 7.5 V threshold.

Use Value: Limits peak voltage to ≤8.0 V during 1 kV/500 Ω ESD events, protecting downstream GPIOs.

Temperature-Compensated Sensor Bias

Low-Power Analog Front-End Reference

Use Scenario: Providing bias voltage for RTD or thermistor measurement bridges in HVAC control units.

IC Role / Device Role / Timing Role: Stable excitation source whose +2.5 mV/°C drift offsets sensor nonlinearity.

Use Value: Enables <±0.5°C measurement accuracy over -40°C to +125°C without external compensation circuitry.

Use Scenario: Setting reference voltage for ADCs in portable medical sensors and wearables.

IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) voltage reference minimizing standby current in battery-operated systems.

Use Value: Extends coin-cell life by >20% compared to 5% tolerance Zeners due to tighter V_Z and lower I_R.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBZ5236BS-7-F	7.5 V, ±5% tolerance, 300 mW, SOT23 - higher impedance (30 Ω), wider V_Z spread.	Acceptable for non-critical biasing but not suitable for precision references requiring <±0.15 V stability.	Select when cost sensitivity outweighs voltage accuracy and thermal drift requirements.
BZX84-C7V5	7.5 V, ±5% tolerance, 350 mW, SOT23 - no AEC-Q101 qualification, higher leakage (≤5 µA at 5 V).	Limited to commercial-grade consumer electronics; unsuitable for automotive or industrial environments.	Choose only for non-automotive applications where qualification and long-term reliability are not mandated.

Compared with MMBZ5236BS-7-F and BZX84-C7V5, BZX84B7V5-7-F delivers superior voltage accuracy, lower thermal drift, and automotive-grade qualification - making it the preferred choice for safety-critical and high-stability reference designs.

Availability

BZX84B7V5-7-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor signal conditioning, and portable medical device power management requiring stable component supply and full RoHS 3 compliance.

Supply support for BZX84B7V5-7-F 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets.

The BZX84B series belongs to Diodes' precision Zener diode product line, engineered for voltage regulation and reference applications demanding tight tolerance, low impedance, and AEC-Q101 qualification.

FAQ

What is the maximum reverse current specification for BZX84B7V5-7-F at 5.0 V?

The maximum reverse current (I_R) is 1.0 µA at V_R = 5.0 V and T_A = 25°C, per the Electrical Characteristics table. This low leakage supports energy-efficient operation in always-on monitoring circuits and extends battery life in portable devices.

Is BZX84B7V5-7-F suitable for automotive applications?

Yes - it is explicitly qualified to AEC-Q101 standards, with operating temperature range from -65°C to +150°C and moisture sensitivity level 1. These attributes validate its use in engine control units, ADAS camera modules, and other under-hood automotive systems.

How does the +2.5 mV/°C temperature coefficient affect circuit performance?

This positive coefficient means V_Z increases by 2.5 mV per °C rise in junction temperature. In precision references, it can be leveraged to offset negative TC elements (e.g., silicon sensors), improving overall system accuracy without additional compensation components.

What is the thermal resistance (R_θJA) when mounted on FR-4 PCB with recommended pads?

The thermal resistance from junction to ambient is 357°C/W under standard mounting conditions (Note 6), assuming terminals are held at ambient temperature. With optimized pad layout per Diodes' guidelines, this enables safe 350 mW dissipation without exceeding 150°C junction limit at 25°C ambient.

BZX84B7V5-7-F Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 7.5 V

Tolerance:: ±2%

Power - Max:: 300 mW

Impedance (Max) (Zzt):: 15 Ohms

Current - Reverse Leakage @ Vr:: 1 µA @ 5 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:: SOT-23-3

BZX84B7V5-7-F FAQ

1.How can I place an order for BZX84B7V5-7-F through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX84B7V5-7-F 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 BZX84B7V5-7-F reliable?

The price and inventory of BZX84B7V5-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84B7V5-7-F is usually 5 days.

3.What payment methods are accepted for BZX84B7V5-7-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84B7V5-7-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX84B7V5-7-F?

BZX84B7V5-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX84B7V5-7-F 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 BZX84B7V5-7-F?

For technical support, including BZX84B7V5-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84B7V5-7-F requirements.

6.How does Aetrix verify that BZX84B7V5-7-F is sourced from the original manufacturer or authorized distributors?

All BZX84B7V5-7-F 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 BZX84B7V5-7-F meets industry standards.

7.What is the process for return or replacement of BZX84B7V5-7-F?

All BZX84B7V5-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84B7V5-7-F, 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 BZX84B7V5-7-F part is unused and in its original packaging.

Return procedure for BZX84B7V5-7-F:

1.Submit a request within 90 days.

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

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