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

Nexperia USA Inc. BZX84J-B22,115

Name: BZX84J-B22,115
Brand: Nexperia USA Inc.
SKU: BZX84J-B22,115
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX84J-B22,115

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: SC-90, SOD-323F

Datasheet:: BZX84J-B22,115.pdf

Description:: DIODE ZENER 22V 550MW SOD323F

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Product details

Overview

BZX84J-B22,115 from Nexperia is a 22 V ±2 % tolerance Zener diode in SOD323F (SC-90) package, designed for precision voltage regulation and reference functions in low-power analog circuits, with 550 mW total power dissipation, 250 mA forward current rating, and AEC-Q101 qualification for automotive use.

For engineers reviewing the BZX84J-B22,115 datasheet, BZX84J-B22,115 pinout, BZX84J-B22,115 application, or BZX84J-B22,115 equivalent, this page delivers verified Zener voltage, differential resistance, temperature coefficient, surge capability, and automotive-grade reliability data required for stable biasing, overvoltage clamping, and reference design validation.

Technical Context

This Zener diode operates in reverse breakdown to maintain a stable 22 V reference across load variations, with nominal test current I_Z = 5 mA and typical differential resistance r_diff = 25 Ω at that condition. Its temperature coefficient of +16.4 mV/K ensures predictable drift behavior in ambient ranges from −55 °C to +150 °C.

It supports non-repetitive peak reverse power dissipation up to 40 W (t_p = 100 μs, square wave), enabling transient overvoltage suppression in automotive ECUs and industrial sensors. The device exhibits ≤ 0.05 μA reverse leakage at 17.6 V and 84 pF capacitance at 1 MHz, minimizing signal coupling in high-frequency bias networks.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage V_Z	21.6 V to 22.4 V at I_Z = 5 mA - tight ±2 % tolerance enables accurate voltage referencing without trimming
Differential Resistance r_diff	25 Ω max at I_Z = 5 mA - low impedance ensures minimal output voltage shift under load current changes
Temperature Coefficient S_Z	+16.4 mV/K - positive drift allows predictable compensation in thermal-aware reference designs
Total Power Dissipation P_tot	550 mW at T_amb ≤ 25 °C - sufficient for continuous regulation in compact SMT layouts on FR4 PCBs
Non-repetitive Peak Power P_ZSM	40 W (t_p = 100 μs) - supports ESD and load-dump transient suppression per ISO 16750-2
Reverse Leakage I_R	≤ 0.05 μA at V_R = 17.6 V - negligible error contribution in high-impedance reference divider networks
Junction Temperature Range	−55 °C to +150 °C - validated for under-hood automotive environments and industrial control enclosures

Pinout & Package

The BZX84J-B22,115 is housed in a SOD323F (SC-90) surface-mount plastic package measuring 2.7 mm × 1.35 mm × 0.95 mm, with flat leads optimized for reflow soldering on high-density PCBs.

Pin/Terminal	Circuit Role	Design Meaning
1 (Marked side)	Cathode (K)	Connected to regulated output node; polarity bar identifies cathode for correct orientation during placement
2	Anode (A)	Connected to ground or lower-potential rail; reverse-biased operation requires anode at lower voltage than cathode

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive electronics per stress-test requirements - suitable for engine control, body electronics, and ADAS modules
±2 % Zener voltage tolerance	Enables single-device accuracy in 22 V reference chains without external calibration or trimming resistors
Low differential resistance (25 Ω)	Maintains <±10 mV regulation error across ±1 mA load current variation - critical for ADC reference stability
84 pF junction capacitance	Minimizes high-frequency coupling into sensitive analog nodes - appropriate for 100 kHz–1 MHz bias applications
SOD323F ultra-small footprint	0.95 mm height and 2.7 mm length allow placement in space-constrained modules such as smart sensors and LIN transceivers

Applications

Automotive Sensor Biasing

Industrial Analog Reference

Use Scenario: Providing stable 22 V bias to MEMS pressure sensor front-end amplifiers in engine manifold modules.

IC Role / Device Role / Timing Role: Zener voltage reference supplying regulated excitation to Wheatstone bridge and op-amp gain stages.

Use Value: ±2 % tolerance and +16.4 mV/K TC enable <±0.5 % full-scale output accuracy over −40 °C to +125 °C operating range.

Use Scenario: Generating precise 22 V reference for 16-bit SAR ADC in programmable logic controller (PLC) analog input modules.

IC Role / Device Role / Timing Role: Low-noise, low-drift voltage reference source for ADC reference buffer circuitry.

Use Value: 25 Ω r_diff limits reference voltage shift to <250 μV under 10 μA reference buffer load variation.

Overvoltage Clamp Protection

Power Supply Feedback Divider

Use Scenario: Clamping transient spikes on 24 V CAN bus power rails during load dump events in vehicle infotainment systems.

IC Role / Device Role / Timing Role: Fast-acting shunt protection element absorbing 40 W surges for 100 μs without failure.

Use Value: AEC-Q101 qualification and 40 W P_ZSM ensure reliable operation per ISO 16750-2 Pulse 5a specifications.

Use Scenario: Setting feedback voltage point in isolated flyback converter secondary-side regulation for 22 V output.

IC Role / Device Role / Timing Role: Precision Zener in optocoupler feedback network defining output voltage setpoint.

Use Value: Tight 21.6–22.4 V window maintains <±0.5 % output regulation across line/load/temperature conditions.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX84-C22,115	±5 % tolerance (20.9–23.1 V), higher r_diff (30 Ω), same package and AEC-Q101 rating	Acceptable where cost sensitivity outweighs precision; less suitable for high-resolution ADC references	Select when tighter voltage control is not required and BOM cost reduction is prioritized
MMSZ5247B-7-F	22 V ±5 %, 500 mW P_tot, SOD-123 package (larger footprint), no AEC-Q101 qualification	Limited to commercial/industrial use; unsuitable for automotive due to missing qualification and higher thermal resistance	Choose only for non-automotive applications where board space permits larger SOD-123 and automotive compliance is unnecessary

Compared with BZX84-C22,115, the BZX84J-B22,115 delivers 2.5× tighter voltage tolerance and lower dynamic impedance-critical for metrology-grade references-while MMSZ5247B-7-F lacks automotive qualification and occupies 2.3× more PCB area, limiting its suitability in space-constrained automotive modules.

Availability

BZX84J-B22,115 is available at Aetrix Electronics and suitable for automotive sensor biasing, industrial analog reference design, overvoltage clamp protection, and power supply feedback divider applications requiring stable component supply with guaranteed long-term sourcing.

Supply support for BZX84J-B22,115 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 essential efficiency technologies, delivering high-performance, high-reliability discrete and logic devices for automotive, industrial, and consumer markets.

The BZX84J series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for precision voltage regulation and transient protection in harsh automotive environments and mission-critical industrial systems.

FAQ

What is the maximum continuous reverse current for BZX84J-B22,115 at 25 °C?

The device does not specify a maximum continuous reverse current; instead, it defines maximum power dissipation of 550 mW at T_amb ≤ 25 °C. At nominal 22 V Zener voltage, this corresponds to a maximum steady-state reverse current of approximately 25 mA (550 mW ÷ 22 V), assuming no additional thermal derating.

Is BZX84J-B22,115 compatible with lead-free reflow soldering profiles?

Yes - the SOD323F package is qualified for standard lead-free reflow soldering per J-STD-020. The recommended profile includes peak temperature of 260 °C for ≤ 30 seconds, with ramp rates and soak zones aligned to JEDEC specifications for small-outline plastic packages.

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

With a typical S_Z of +16.4 mV/K, the Zener voltage shifts by approximately +2.7 V across the full 165 K range. At I_Z = 5 mA, this results in a total drift of ~+12.3 % relative to nominal 22 V - a known, monotonic behavior that can be compensated in system-level calibration routines.

Can BZX84J-B22,115 replace older BZX84-B22 variants in existing designs?

Yes - it maintains identical pinout, package dimensions, electrical characteristics, and AEC-Q101 qualification. The Rev. 3 datasheet confirms backward compatibility, including identical marking code "SG" and identical thermal resistance values (R_th(j-a) = 230 K/W).

BZX84J-B22,115 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: SC-90, SOD-323F

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 22 V

Tolerance:: ±2%

Power - Max:: 550 mW

Impedance (Max) (Zzt):: 25 Ohms

Current - Reverse Leakage @ Vr:: 50 nA @ 15.4 V

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

Operating Temperature:: -65°C ~ 150°C

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-323F

BZX84J-B22,115 FAQ

1.How can I place an order for BZX84J-B22,115 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX84J-B22,115 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 BZX84J-B22,115 reliable?

The price and inventory of BZX84J-B22,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84J-B22,115 is usually 5 days.

3.What payment methods are accepted for BZX84J-B22,115?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84J-B22,115 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX84J-B22,115?

BZX84J-B22,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX84J-B22,115 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 BZX84J-B22,115?

For technical support, including BZX84J-B22,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84J-B22,115 requirements.

6.How does Aetrix verify that BZX84J-B22,115 is sourced from the original manufacturer or authorized distributors?

All BZX84J-B22,115 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 BZX84J-B22,115 meets industry standards.

7.What is the process for return or replacement of BZX84J-B22,115?

All BZX84J-B22,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84J-B22,115, 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 BZX84J-B22,115 part is unused and in its original packaging.

Return procedure for BZX84J-B22,115:

1.Submit a request within 90 days.

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

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