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

Diodes Incorporated BZX84C16Q-7-F

Name: BZX84C16Q-7-F
Brand: Diodes Incorporated
SKU: BZX84C16Q-7-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX84C16Q-7-F

Manufacturer:: Diodes Incorporated

Category:: Single Zener Diodes

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

Datasheet:: BZX84C16Q-7-F.pdf

Description:: DIODE ZENER 16V 300MW SOT23

Quantity:: RFQ Add To RFQ list

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Inventory:2,098

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Product details

Overview

BZX84C16Q-7-F from Diodes Incorporated is an automotive-grade 16V, 350mW surface-mount Zener diode in SOT23 package, designed for precision voltage regulation and overvoltage protection in low-power analog circuits. It delivers a nominal Zener voltage of 16V at 5mA test current, with ±0.7V tolerance (15.3–17.1V), 40Ω dynamic impedance at 5mA, and 0.1µA maximum reverse leakage at 11.2V.

For engineers reviewing the BZX84C16Q-7-F datasheet, BZX84C16Q-7-F pinout, BZX84C16Q-7-F application, or BZX84C16Q-7-F equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (357°C/W), AEC-Q101 qualification, SOT23 footprint compatibility, and low-leakage performance in bias/reference circuits.

Technical Context

This Zener diode operates in reverse breakdown to maintain stable reference voltage under varying load and temperature conditions. Its planar die construction ensures consistent voltage regulation, while the matte tin–plated Alloy 42 leadframe supports reliable solderability per MIL-STD-202.

Rated for −65°C to +150°C operation, it exhibits a negative temperature coefficient of −2.0 mV/°C near 16V and maintains ≤0.1µA reverse current up to 11.2V - critical for low-power sensor biasing and ADC reference stabilization.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	16V nominal at 5mA; min/max 15.3–17.1V - defines regulation window for 3.3V/5V rail monitoring.
Power Dissipation	350mW at ambient temperature - supports continuous operation in compact PCB layouts without forced cooling.
Zener Impedance (Z_ZT)	40Ω at 5mA - limits output voltage variation under dynamic load shifts in feedback networks.
Reverse Leakage (I_R)	0.1µA max at 11.2V - preserves accuracy in high-impedance voltage divider or op-amp reference inputs.
Thermal Resistance (R_θJA)	357°C/W - enables thermal-aware layout with standard FR-4 pad design per Diodes Inc. recommendations.
Temperature Coefficient	−2.0 mV/°C - allows predictable drift compensation in temperature-stable references.
AEC-Q101 Qualified	Yes - validated for automotive electronics including body control modules and sensor interfaces.

Pinout & Package

Package: SOT23 - 3-terminal surface-mount plastic case (UL 94V-0), 0.008g weight, moisture sensitivity level 1.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Pin 1)	Forward conduction terminal / cathode reference ground	Connected to system ground or lower-potential node in shunt regulator configuration.
Cathode (Pin 2)	Zener breakdown terminal / regulated output node	Provides stable 16V reference when reverse-biased; ties to input supply via series resistor.
No-Connect (Pin 3)	Internal die attach flag / mechanical support	Not electrically connected; serves structural role in SOT23 molding - must remain unconnected in layout.

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive underhood environments - supports 15-year reliability in ECUs and lighting controllers.
Green molding compound	Halogen- and antimony-free (<900ppm Br/Cl, <1000ppm Sb) - meets automotive OEM environmental compliance mandates.
Planar die construction	Enables tight V_Z distribution (±0.7V) and repeatable Z_ZT - reduces calibration overhead in production test.
SOT23 footprint compatibility	Standard 2.4mm × 1.3mm outline with 0.915mm pin pitch - interoperable with legacy BZX84 designs and automated placement.
Matte tin lead finish	RoHS-compliant, solderable per MIL-STD-202 Method 208 - eliminates lead-free reflow defects in high-volume assembly.

Applications

Automotive Sensor Biasing

Industrial Analog Reference

Use Scenario: Providing stable bias voltage to MEMS pressure sensors in engine control units.

IC Role / Device Role / Timing Role: Shunt Zener reference regulating sensor excitation voltage against battery rail fluctuations.

Use Value: Maintains ±0.5% sensor output linearity across −40°C to +125°C due to low tempco and AEC-Q101 validation.

Use Scenario: Generating precise 16V reference for 12-bit SAR ADC front-end in programmable logic controllers.

IC Role / Device Role / Timing Role: Low-leakage voltage clamp defining upper rail for op-amp buffer stage.

Use Value: Enables <0.1 LSB gain error by limiting reference drift to <1.2mV over industrial temperature range.

USB-C Power Negotiation

IoT Node Voltage Monitoring

Use Scenario: Overvoltage protection for CC logic lines during USB PD communication handshake.

IC Role / Device Role / Timing Role: Fast-clamping Zener absorbing transient spikes above 16V on 5V CC bus.

Use Value: Responds within 10ns to 1kV/µs transients while maintaining <100pF capacitance - avoids signal integrity degradation.

Use Scenario: Monitoring Li-ion battery pack voltage in smart thermostats using ultra-low-quiescent microcontrollers.

IC Role / Device Role / Timing Role: Passive voltage threshold detector triggering brown-out reset at 14.0V.

Use Value: Draws only 0.1µA standby current - extends 10-year battery life without compromising detection accuracy.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMSZ4687T1G	16V nominal, 500mW rating, 30Ω Z_ZT, no AEC-Q101 qualification	Higher power handling but lacks automotive reliability validation	Prefer for industrial power supplies where thermal margin >350mW is required
BZX84-C16-7-F	Identical electrical specs, same SOT23 package, but non-automotive grade (no Q suffix)	Same regulation performance but not qualified for automotive temperature cycling or humidity testing	Acceptable for consumer or commercial designs with <85°C max ambient

Compared with MMSZ4687T1G and BZX84-C16-7-F, BZX84C16Q-7-F uniquely combines AEC-Q101 qualification, green material compliance, and verified 150°C operation - making it the only drop-in solution for ASIL-B–level voltage supervision in automotive ECUs.

Availability

BZX84C16Q-7-F is available at Aetrix Electronics and suitable for automotive sensor biasing, industrial analog reference generation, and IoT node voltage monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for BZX84C16Q-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.

BZX84C16Q-7-F belongs to the BZX84C automotive Zener diode family, engineered specifically for precision voltage clamping and regulation in harsh-environment electronics where AEC-Q101 compliance and green material content are mandatory.

FAQ

What is the maximum reverse voltage before breakdown for BZX84C16Q-7-F?

The rated Zener voltage is 16V nominal at 5mA test current, with guaranteed minimum and maximum values of 15.3V and 17.1V respectively. Breakdown begins gradually above 15.3V, and full regulation is established at 5mA. The device is not rated for sustained operation above 17.1V in reverse bias without exceeding power limits.

Is BZX84C16Q-7-F compatible with lead-free reflow profiles?

Yes - its matte tin finish over Alloy 42 leadframe is qualified for standard lead-free reflow profiles (peak 260°C, 10-second dwell), compliant with J-STD-020 Level 1 moisture sensitivity, and tested per MIL-STD-202 Method 208 for solderability.

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

With a specified −2.0 mV/°C coefficient near 16V, total drift across 165°C span is approximately −330mV - resulting in a worst-case regulation band of 15.67V to 16.33V. This is confirmed in Diodes Inc.'s Fig. 2 and Fig. 3 characterization curves.

Can BZX84C16Q-7-F replace BZX84C15Q-7-F in a 15V reference circuit?

No - BZX84C16Q-7-F has a 16V nominal Zener voltage versus 15V for BZX84C15Q-7-F. Substituting would shift reference level by ~1V, potentially violating ADC input range or comparator thresholds. The 15.3–17.1V tolerance band does not overlap the 14.25–15.75V band of the 15V variant.

BZX84C16Q-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):: 16 V

Tolerance:: ±5.63%

Power - Max:: 300 mW

Impedance (Max) (Zzt):: 40 Ohms

Current - Reverse Leakage @ Vr:: 100 nA @ 11.2 V

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

Operating Temperature:: -65°C ~ 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

BZX84C16Q-7-F FAQ

1.How can I place an order for BZX84C16Q-7-F through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX84C16Q-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 BZX84C16Q-7-F reliable?

The price and inventory of BZX84C16Q-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 BZX84C16Q-7-F is usually 5 days.

3.What payment methods are accepted for BZX84C16Q-7-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C16Q-7-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX84C16Q-7-F?

BZX84C16Q-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX84C16Q-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 BZX84C16Q-7-F?

For technical support, including BZX84C16Q-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C16Q-7-F requirements.

6.How does Aetrix verify that BZX84C16Q-7-F is sourced from the original manufacturer or authorized distributors?

All BZX84C16Q-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 BZX84C16Q-7-F meets industry standards.

7.What is the process for return or replacement of BZX84C16Q-7-F?

All BZX84C16Q-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C16Q-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 BZX84C16Q-7-F part is unused and in its original packaging.

Return procedure for BZX84C16Q-7-F:

1.Submit a request within 90 days.

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

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