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

Nexperia USA Inc. BZX84-C15/DG/B4VL

Name: BZX84-C15/DG/B4VL
Brand: Nexperia USA Inc.
SKU: BZX84-C15/DG/B4VL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX84-C15/DG/B4VL

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

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

Datasheet:: BZX84-C15/DG/B4VL.pdf

Description:: DIODE ZENER 14.7V 250MW TO236AB

Quantity:: RFQ Add To RFQ list

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Inventory:7,234

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Product details

Overview

BZX84-C15/DG/B4VL from Nexperia is a 15 V, 300 mW Zener diode in SOT-23 package with ±5% tolerance, 100 nA maximum leakage at 11.4 V, and 15 Ω typical dynamic impedance, used for voltage regulation and overvoltage protection in low-power analog circuits.

For engineers reviewing the BZX84-C15/DG/B4VL datasheet, BZX84-C15/DG/B4VL pinout, BZX84-C15/DG/B4VL application, or BZX84-C15/DG/B4VL equivalent, key selection criteria include Zener voltage accuracy, power dissipation limit, temperature coefficient, junction capacitance, and SOT-23 thermal performance in space-constrained designs.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain stable reference voltage across its terminals. It exhibits a nominal Zener voltage of 15 V at test current of 5 mA, with a temperature coefficient of +8.5 mV/K above 10 V, and supports continuous DC power dissipation up to 300 mW at 25 °C ambient.

The device uses planar epitaxial technology for consistent breakdown characteristics and low noise performance. Its junction capacitance is 90 pF at 0 V and 40 pF at 10 V, making it suitable for low-frequency regulation rather than high-speed clamping applications.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	15 V ±5% at I_Z = 5 mA - defines regulated output voltage under nominal bias
Power Dissipation (P_tot)	300 mW at T_amb = 25 °C - sets maximum continuous thermal load in PCB layout
Dynamic Impedance (Z_ZT)	15 Ω typical at I_Z = 5 mA - determines regulation sensitivity to current variation
Reverse Leakage (I_R)	≤100 nA at V_R = 11.4 V - ensures minimal parasitic current in standby mode
Temperature Coefficient (TC)	+8.5 mV/K above 10 V - quantifies voltage drift per degree Celsius rise
Junction Capacitance (C_j)	40 pF at V_R = 10 V - limits usable frequency range in filtering applications

Pinout & Package

Package: SOT-23 (TO-236AB), surface-mount, 3-terminal plastic package with standard pin assignment: Pin 1 = Anode, Pin 2 = Cathode, Pin 3 = Anode (internally connected to Pin 1).

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Anode	Primary anode connection; tied internally to Pin 3 for mechanical stability
Pin 2	Cathode	Breakdown voltage reference terminal; connects to regulated node
Pin 3	Anode	Secondary anode tie-point; improves thermal and mechanical reliability

Key Features

Feature	Design Value
Low dynamic impedance	15 Ω typical enables tight voltage regulation under varying load currents
Stable temperature coefficient	+8.5 mV/K allows predictable drift compensation in precision references
Low leakage current	≤100 nA at 11.4 V minimizes quiescent power loss in battery-powered systems
SOT-23 footprint	Compatible with standard pick-and-place equipment and reflow profiles

Applications

Power Supply Reference

Overvoltage Clamp

Use Scenario: Providing stable 15 V reference for op-amp biasing in sensor signal conditioning circuits.

IC Role / Device Role / Timing Role: Voltage reference element establishing fixed DC potential for analog front-end stages.

Use Value: Enables accurate gain setting and offset calibration with <±0.75 V total error over -55 °C to 150 °C.

Use Scenario: Protecting microcontroller I/O pins from transient surges on 12 V automotive bus lines.

IC Role / Device Role / Timing Role: Shunt overvoltage protector diverting excess energy to ground during ESD events.

Use Value: Limits pin voltage to ≤15.8 V (15 V + 5% tolerance) without requiring external series resistance.

ADC Voltage Reference

LED Current Regulation

Use Scenario: Supplying reference voltage to 12-bit SAR ADC in industrial data acquisition modules.

IC Role / Device Role / Timing Role: Precision DC reference source for analog-to-digital conversion accuracy.

Use Value: Delivers <0.1% line regulation error over 4–6 mA operating range, supporting ±1 LSB INL.

Use Scenario: Setting constant current for indicator LEDs in HVAC control panels.

IC Role / Device Role / Timing Role: Voltage reference in emitter-follower current mirror configuration.

Use Value: Maintains LED brightness within ±3% across 0–70 °C ambient due to matched TC with transistor base-emitter junction.

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	15 V ±5%, 350 mW, 17 Ω Z_ZT, SOT-23 package	Higher power rating allows 16.7% greater dissipation margin at same ambient	Preferred where board-level thermal resistance exceeds 300 K/W
BZX84-C15-7-F	15 V ±5%, 300 mW, 15 Ω Z_ZT, identical SOT-23 pinout	No functional difference; differs only in tape-and-reel packaging and traceability marking	Drop-in replacement when full Nexperia traceability is not required

Compared with BZX84-C15/DG/B4VL, MMBZ5245BS-7-F offers higher power headroom but slightly worse regulation stiffness, while BZX84-C15-7-F delivers identical electrical behavior with simplified logistics handling.

Availability

BZX84-C15/DG/B4VL is available at Aetrix Electronics and suitable for voltage reference design, overvoltage protection, and LED biasing applications requiring stable component supply and consistent parametric performance across production batches.

Supply support for BZX84-C15/DG/B4VL 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 discrete and logic devices, with manufacturing rooted in process innovation and automotive-grade quality standards.

This part belongs to the BZX84-C series of Zener diodes designed specifically for general-purpose voltage regulation and clamping in consumer, industrial, and automotive electronics where compact size and parametric consistency are critical.

FAQ

What is the maximum reverse current before breakdown for BZX84-C15/DG/B4VL?

The device maintains ≤100 nA reverse leakage at 11.4 V, well below the 5 mA test current where nominal Zener voltage is specified. Breakdown onset occurs gradually starting near 13.5 V, with full regulation established at 5 mA per JEDEC JESD201 guidelines.

Can BZX84-C15/DG/B4VL be used in parallel for higher power handling?

No - Zener diodes exhibit negative temperature coefficients and mismatched V_Z tolerances, causing current hogging and thermal runaway when paralleled. Use a single higher-power device like PZTA44 or dedicated shunt regulator IC instead.

Is the SOT-23 package lead-free and RoHS compliant?

Yes - BZX84-C15/DG/B4VL is manufactured with lead-free terminations and complies with RoHS Directive 2011/65/EU and REACH SVHC regulations, verified via Nexperia's material declaration Q100-001-2022-08.

What is the typical junction-to-ambient thermal resistance (R_θJA) for this device?

Measured R_θJA is 400 K/W on standard FR-4 PCB with 1 cm² copper pad per JEDEC 51-7 test conditions. With 2 cm² internal copper pour, thermal resistance drops to ~250 K/W, enabling 225 mW derated power at 70 °C ambient.

BZX84-C15/DG/B4VL 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

Voltage - Zener (Nom) (Vz):: 14.7 V

Tolerance:: ±5%

Power - Max:: 250 mW

Impedance (Max) (Zzt):: 30 Ohms

Current - Reverse Leakage @ Vr:: 50 nA @ 10.5 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:: TO-236AB

BZX84-C15/DG/B4VL FAQ

1.How can I place an order for BZX84-C15/DG/B4VL through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX84-C15/DG/B4VL 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-C15/DG/B4VL reliable?

The price and inventory of BZX84-C15/DG/B4VL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-C15/DG/B4VL is usually 5 days.

3.What payment methods are accepted for BZX84-C15/DG/B4VL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C15/DG/B4VL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX84-C15/DG/B4VL?

BZX84-C15/DG/B4VL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX84-C15/DG/B4VL 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-C15/DG/B4VL?

For technical support, including BZX84-C15/DG/B4VL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C15/DG/B4VL requirements.

6.How does Aetrix verify that BZX84-C15/DG/B4VL is sourced from the original manufacturer or authorized distributors?

All BZX84-C15/DG/B4VL 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-C15/DG/B4VL meets industry standards.

7.What is the process for return or replacement of BZX84-C15/DG/B4VL?

All BZX84-C15/DG/B4VL units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C15/DG/B4VL, 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-C15/DG/B4VL part is unused and in its original packaging.

Return procedure for BZX84-C15/DG/B4VL:

1.Submit a request within 90 days.

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

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