Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Nexperia USA Inc. BZX384-A5V6X

Name: BZX384-A5V6X
Brand: Nexperia USA Inc.
SKU: BZX384-A5V6X
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: BZX384-A5V6X

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: SC-76, SOD-323

Datasheet:: BZX384-A5V6X.pdf

Description:: DIODE ZENER 5.6V 300MW SOD323

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:8,575

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

BZX384-A5V6X from Nexperia is a ±1 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, providing precise 5.6 V reverse breakdown at 5 mA with 400 Ω differential resistance and ≤1 μA reverse leakage at 3.36 V. It delivers stable reference voltage for low-power analog circuits, power supply feedback loops, and overvoltage protection in consumer and industrial PCBs.

For engineers reviewing the BZX384-A5V6X datasheet, BZX384-A5V6X pinout, BZX384-A5V6X application, or BZX384-A5V6X equivalent, key selection criteria include its 5.6 V nominal Zener voltage, ±1 % tolerance, 300 mW total power dissipation, 400 Ω dynamic impedance at 5 mA, and SOD323 surface-mount footprint compatibility with automated assembly.

Technical Context

This device operates as a two-terminal shunt voltage reference, maintaining regulation by conducting reverse current above its specified Zener knee voltage. Its 5.6 V nominal breakdown is defined at I_Z = 5 mA under T_j = 25 °C, with temperature coefficient of −2.0 to +2.5 mV/K and thermal resistance of 415 K/W junction-to-ambient.

The diode exhibits non-repetitive peak reverse power dissipation of 40 W for 100 μs pulses and supports forward conduction up to 250 mA. Its 150 °C maximum junction temperature and −65 °C to +150 °C ambient operating range enable use in thermally constrained embedded systems.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	5.54 V to 5.66 V at I_Z = 5 mA - tight ±1 % tolerance enables accurate voltage clamping in precision feedback networks
Differential Resistance (r_dif)	400 Ω max at I_Z = 5 mA - low dynamic impedance ensures minimal output voltage variation under load transients
Reverse Current (I_R)	≤1 μA at V_R = 3.36 V - ultra-low leakage preserves battery life in always-on monitoring circuits
Total Power Dissipation (P_tot)	300 mW at T_amb ≤ 25 °C on FR4 PCB - defines maximum continuous DC power handling in standard layout
Non-repetitive Peak Power (P_ZSM)	40 W for t_p = 100 μs - supports transient surge suppression without permanent degradation
Junction Temperature (T_j)	−65 °C to +150 °C - wide thermal range accommodates operation in unheated enclosures and near heat sources
Package	SOD323 (SC-76) - 1.35 mm × 0.85 mm footprint with 0.45 mm lead pitch, compatible with high-density reflow assembly

Pinout & Package

SOD323 (SC-76) plastic surface-mounted package with 2 leads; cathode marked by bar on top surface; 1.35 mm × 0.85 mm body size, 0.45 mm lead pitch, 0.25 mm lead thickness.

Pin/Terminal	Circuit Role	Design Meaning
1	Cathode (K)	Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs; marking bar identifies this pin
2	Anode (A)	Connected to ground or lower-potential rail; completes shunt path for excess current during regulation

Key Features

Feature	Design Value
±1 % Zener voltage tolerance	Enables direct replacement in 5.6 V reference designs without recalibration or resistor trimming
300 mW power rating	Supports continuous regulation in space-constrained 0201-class layouts without external heatsinking
400 Ω differential resistance	Minimizes output voltage drift across 1–10 mA load current variations in feedback divider networks
150 °C maximum junction temperature	Permits operation adjacent to power MOSFETs or DC-DC converters without derating in most industrial environments
SOD323 package compatibility	Matches IPC-7351B standard footprint for seamless integration into automated pick-and-place and reflow processes

Applications

Power Supply Feedback

Overvoltage Protection

Use Scenario: Regulating output voltage of isolated flyback or buck converter via optocoupler-coupled feedback loop.

IC Role / Device Role / Timing Role: Shunt reference providing stable 5.6 V threshold to TL431 or optocoupler input LED.

Use Value: ±1 % V_Z eliminates need for external trim potentiometer, reducing BOM count and calibration labor.

Use Scenario: Clamping microcontroller I/O pins against ESD or inductive kickback in automotive body control modules.

IC Role / Device Role / Timing Role: Low-leakage Zener shunting transient energy to ground before IC damage threshold is exceeded.

Use Value: 1 μA reverse current at 3.36 V prevents false triggering while enabling fast response to >5.6 V surges.

Reference Voltage Source

Signal Level Translation

Use Scenario: Generating stable bias voltage for op-amp comparators in battery-powered sensor nodes.

IC Role / Device Role / Timing Role: Precision 5.6 V reference replacing larger, higher-cost bandgap ICs in low-current applications.

Use Value: 400 Ω r_dif maintains <±10 mV output shift across 0.1–5 mA load, ensuring consistent comparator trip points.

Use Scenario: Translating 3.3 V logic signals to 5 V interface levels using simple resistor-Zener level shifter.

IC Role / Device Role / Timing Role: Clamp diode defining high-level voltage threshold for open-drain bus receivers.

Use Value: Fast 100 μs surge response (40 W/100 μs) protects downstream logic without adding propagation delay.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor MMBZ5232BS	5.6 V ±5 % tolerance, 200 mW P_tot, 600 Ω r_dif, SOD-323 package	Higher tolerance and impedance reduce accuracy in precision feedback; lower power rating limits sustained current	Select when cost sensitivity outweighs regulation accuracy and thermal margin requirements
Vishay BZX384-C5V6	5.2 V to 6.0 V (±5 %), same SOD323 package, 300 mW rating, 400 Ω r_dif	Wider voltage spread increases risk of out-of-spec operation in tight-tolerance circuits; identical thermal performance	Choose only if system-level testing confirms acceptable performance across full V_Z range and temperature

Compared with MMBZ5232BS and BZX384-C5V6, BZX384-A5V6X provides superior voltage accuracy and lower dynamic impedance for feedback-critical applications, while maintaining identical board space and soldering compatibility-making it optimal for designs requiring first-pass calibration success and long-term stability.

Availability

BZX384-A5V6X is available at Aetrix Electronics and suitable for power supply feedback, overvoltage protection, and reference voltage source applications requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for BZX384-A5V6X 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 leadership in automotive-qualified and industrial-grade components.

The BZX384 series belongs to Nexperia's precision Zener regulator portfolio, engineered specifically for compact, low-power voltage reference and clamping functions in consumer, industrial, and computing applications where space, accuracy, and thermal robustness are critical.

FAQ

What is the maximum continuous reverse current for BZX384-A5V6X at 25 °C ambient?

The device supports continuous reverse current up to 50 mA at 25 °C ambient, derived from its 300 mW power rating and 5.6 V Zener voltage (I_Z = P_tot/V_Z ≈ 53.6 mA). Derating is required above 25 °C per the 415 K/W junction-to-ambient thermal resistance.

Does BZX384-A5V6X meet automotive qualification standards?

No. Per Nexperia's revision history (Rev. 4, January 2023), the BZX384 series is explicitly designated as non-automotive qualified. Automotive alternatives are available under the -Q suffix (e.g., BZX384-A5V6-Q) with AEC-Q200 qualification and extended temperature validation.

How does the temperature coefficient affect regulation accuracy over −40 °C to +85 °C?

With a specified SZ of −2.0 to +2.5 mV/K, the Zener voltage shifts by approximately ±0.39 V across a 125 K temperature span. At 5.6 V nominal, this represents ±7 % drift-acceptable for non-critical clamping but requiring compensation in precision references.

Can BZX384-A5V6X replace BZX384-B5V6 in an existing design?

Yes, mechanically and electrically-both share identical SOD323 package, 5.6 V nominal voltage, and 300 mW rating-but BZX384-A5V6X offers tighter ±1 % tolerance versus ±2 % for the B variant. No layout change is needed, though system-level verification of improved accuracy is recommended.

BZX384-A5V6X 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):: 5.6 V

Tolerance:: ±1%

Power - Max:: 300 mW

Impedance (Max) (Zzt):: 40 Ohms

Current - Reverse Leakage @ Vr:: 1 µA @ 2 V

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

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-323

BZX384-A5V6X FAQ

1.How can I place an order for BZX384-A5V6X through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX384-A5V6X 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-A5V6X reliable?

The price and inventory of BZX384-A5V6X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX384-A5V6X is usually 5 days.

3.What payment methods are accepted for BZX384-A5V6X?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-A5V6X transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX384-A5V6X?

BZX384-A5V6X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX384-A5V6X 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-A5V6X?

For technical support, including BZX384-A5V6X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-A5V6X requirements.

6.How does Aetrix verify that BZX384-A5V6X is sourced from the original manufacturer or authorized distributors?

All BZX384-A5V6X 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-A5V6X meets industry standards.

7.What is the process for return or replacement of BZX384-A5V6X?

All BZX384-A5V6X units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-A5V6X, 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-A5V6X part is unused and in its original packaging.

Return procedure for BZX384-A5V6X:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…