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

Nexperia USA Inc. BZX384-C16F

Name: BZX384-C16F
Brand: Nexperia USA Inc.
SKU: BZX384-C16F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX384-C16F

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: SC-76, SOD-323

Datasheet:: BZX384-C16F.pdf

Description:: DIODE ZENER 16V 300MW SOD323

Quantity:: RFQ Add To RFQ list

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Inventory:9,100

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Product details

Overview

BZX384-C16F from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 16 V nominal breakdown voltage at 5 mA, 300 mW total power dissipation, and 150 °C maximum junction temperature. It provides stable reference voltage in low-power linear regulators and overvoltage protection circuits for consumer and industrial power management.

For engineers reviewing the BZX384-C16F datasheet, BZX384-C16F pinout, BZX384-C16F application, or BZX384-C16F equivalent, key selection criteria include its 16 V Zener voltage tolerance (±5 %), 200 Ω typical differential resistance at 5 mA, 1.5 A non-repetitive peak reverse current, 11.2 mV/K temperature coefficient, and SOD323 thermal resistance of 110 K/W to solder point.

Technical Context

This device operates as a two-terminal shunt voltage reference, maintaining regulation by conducting reverse current above its specified Zener voltage. Its 16 V nominal breakdown is defined at I_Z = 5 mA with a maximum differential resistance of 200 Ω, ensuring predictable voltage deviation under load variation.

The diode exhibits a positive temperature coefficient of +11.2 mV/K at 5 mA, enabling predictable drift compensation in temperature-sensitive references. Its SOD323 package delivers R_th(j-sp) = 110 K/W to cathode solder point, supporting reliable thermal performance on standard FR4 PCBs with single-sided copper.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage V_Z	15.3 V to 17.1 V at I_Z = 5 mA - defines usable regulation window for precision reference design
Differential Resistance r_dif	200 Ω max at I_Z = 5 mA - determines output impedance and load regulation error
Reverse Current I_R	0.05 μA max at V_R = 12.2 V - ensures minimal leakage below knee voltage
Temperature Coefficient S_Z	+11.2 mV/K at I_Z = 5 mA - quantifies voltage drift per degree Celsius rise
Total Power Dissipation P_tot	300 mW at T_amb ≤ 25 °C - sets maximum continuous DC power on standard FR4 PCB
Non-repetitive Peak Reverse Current I_ZSM	1.5 A for t_p = 100 μs - supports transient overvoltage clamping capability
Junction Temperature T_j	−65 °C to +150 °C - defines operational and storage thermal envelope

Pinout & Package

SOD323 (SC-76) surface-mount plastic package with 2 leads; compact 1.35 mm × 0.85 mm footprint, 0.45 mm profile, and cathode marked by bar on top surface.

Pin/Terminal	Circuit Role	Design Meaning
1	Cathode (K)	Connected to regulated output node; carries reverse current during Zener conduction
2	Anode (A)	Connected to ground or lower-potential rail; completes shunt regulation path

Key Features

Feature	Design Value
±5 % Zener voltage tolerance	Enables cost-effective voltage referencing where tight regulation is not required
300 mW power rating	Supports stable operation in space-constrained low-power supply rails without heatsinking
150 °C maximum junction temperature	Permits use in thermally demanding environments including industrial control enclosures
110 K/W junction-to-solder-point thermal resistance	Ensures efficient heat transfer to PCB copper, improving long-term reliability under pulsed loads
1.5 A non-repetitive peak reverse current	Provides robust transient suppression for ESD and surge events in input protection stages

Applications

Power Supply Reference

Overvoltage Clamp

Use Scenario: Providing stable 16 V reference for adjustable LDO feedback networks in battery-powered instrumentation.

IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise output setpoint via resistor divider.

Use Value: Delivers ±5 % accuracy and <200 Ω dynamic impedance to minimize load-induced output deviation.

Use Scenario: Protecting microcontroller I/O pins from 24 V field transients in PLC digital input modules.

IC Role / Device Role / Timing Role: Passive clamp limiting voltage to 17.1 V during surge events.

Use Value: Absorbs up to 1.5 A peak current for 100 μs without degradation, preventing latch-up.

Signal Level Translation

ADC Input Protection

Use Scenario: Biasing op-amp inputs to 16 V common-mode level in high-side current sensing circuits.

IC Role / Device Role / Timing Role: DC voltage translator setting operating point for analog front-end stages.

Use Value: Maintains stable bias under varying source impedance due to low differential resistance.

Use Scenario: Preventing damage to 3.3 V SAR ADC inputs exposed to 12 V sensor outputs in automotive body control units.

IC Role / Device Role / Timing Role: Input-stage overvoltage limiter clamping at 17.1 V before series resistor.

Use Value: Limits fault energy with sub-μA leakage below 12.2 V, preserving ADC accuracy during normal operation.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBZ5245BS-7-F	16 V nominal, ±5 %, SOT-23 package, 350 mW P_tot, 250 Ω r_dif	Larger footprint, higher thermal resistance (250 K/W j-a), less suitable for ultra-dense layouts	Select when higher power margin is needed and board area permits SOT-23
BZX84-C16	16 V nominal, ±5 %, SOT-23 package, 300 mW P_tot, 200 Ω r_dif, automotive-qualified (-Q variant available)	Same electrical specs but automotive-grade qualification and different marking scheme	Select for automotive applications requiring AEC-Q101 compliance

Compared with MMBZ5245BS-7-F and BZX84-C16, BZX384-C16F offers identical Zener voltage tolerance and differential resistance in a 30 % smaller SOD323 footprint with superior thermal coupling (110 K/W vs. ≥250 K/W), making it optimal for miniaturized industrial and consumer designs where space and thermal efficiency are critical.

Availability

BZX384-C16F is available at Aetrix Electronics and suitable for low-power voltage reference, overvoltage protection, and signal-level translation requiring stable component supply across consumer electronics, industrial control systems, and test equipment.

Supply support for BZX384-C16F 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 specializing in high-volume, high-reliability discrete and logic devices, with leadership in automotive, industrial, and mobile markets.

The BZX384 series belongs to Nexperia's precision Zener diode product line, engineered for cost-sensitive, space-constrained voltage regulation and protection in general-purpose power management applications.

FAQ

What is the maximum continuous reverse current for BZX384-C16F at 25 °C ambient?

The device does not specify a maximum continuous reverse current independent of power dissipation. At 25 °C ambient, its 300 mW total power dissipation limit restricts continuous Zener current to approximately 18.8 mA (300 mW ÷ 16 V), assuming nominal 16 V operation. Exceeding this risks thermal runaway due to positive temperature coefficient.

How does the +11.2 mV/K temperature coefficient affect circuit stability?

A +11.2 mV/K coefficient means the Zener voltage increases by ~11.2 mV per °C rise in junction temperature. Over a 100 °C range (25 °C to 125 °C), this causes ~1.12 V drift - significant in precision references. Designers must either limit self-heating, add compensation, or select lower-coefficient variants (e.g., BZX384-A16) for tighter stability.

Can BZX384-C16F be used in parallel for higher power handling?

No - Zener diodes exhibit negative resistance characteristics and cannot be reliably paralleled without individual ballast resistors. Mismatched temperature coefficients and V_Z tolerances cause current hogging, leading to thermal instability and premature failure. For higher power, select a single higher-rated device like BZX84-C16 or use active regulation.

Is BZX384-C16F suitable for automotive applications?

No - this part is non-automotive qualified per Nexperia's revision history (Rev. 4, Jan 2023). It lacks AEC-Q101 qualification and automotive-specific testing. For automotive use, specify BZX84-C16-Q or other Nexperia automotive-grade Zeners, which undergo extended temperature cycling, humidity testing, and failure analysis per automotive standards.

BZX384-C16F Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: BZX384

Package/Case:: SC-76, SOD-323

Packaging:: Tape & Reel (TR)

Product Status:: Active

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

Tolerance:: ±5%

Power - Max:: 300 mW

Impedance (Max) (Zzt):: 40 Ohms

Current - Reverse Leakage @ Vr:: 50 nA @ 11.2 V

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 100 mA

Operating Temperature:: -65°C ~ 150°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-323

BZX384-C16F FAQ

1.How can I place an order for BZX384-C16F through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX384-C16F 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 BZX384-C16F reliable?

The price and inventory of BZX384-C16F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX384-C16F is usually 5 days.

3.What payment methods are accepted for BZX384-C16F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-C16F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX384-C16F?

BZX384-C16F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX384-C16F 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 BZX384-C16F?

For technical support, including BZX384-C16F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-C16F requirements.

6.How does Aetrix verify that BZX384-C16F is sourced from the original manufacturer or authorized distributors?

All BZX384-C16F 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 BZX384-C16F meets industry standards.

7.What is the process for return or replacement of BZX384-C16F?

All BZX384-C16F units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-C16F, 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 BZX384-C16F part is unused and in its original packaging.

Return procedure for BZX384-C16F:

1.Submit a request within 90 days.

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

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