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

Nexperia USA Inc. BZX84-B5V6,235

Name: BZX84-B5V6,235
Brand: Nexperia USA Inc.
SKU: BZX84-B5V6,235
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX84-B5V6,235

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

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

Datasheet:: BZX84-B5V6,235.pdf

Description:: DIODE ZENER 5.6V 250MW TO236AB

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Product details

Overview

BZX84-B5V6,235 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 5.6 V nominal breakdown at 5 mA, with 400 Ω max differential resistance and 1 μA max reverse current at 4.2 V, used for precision low-power voltage reference and overvoltage protection in sensor signal conditioning circuits.

For engineers reviewing the BZX84-B5V6,235 datasheet, BZX84-B5V6,235 pinout, BZX84-B5V6,235 application, or BZX84-B5V6,235 equivalent, this page delivers verified Zener voltage, thermal resistance, peak surge capability, and SOT23 terminal mapping - critical for ESD-sensitive analog front-ends, rail clamp design, and 3.3 V/5 V supply stabilization.

Technical Context

This device operates as a two-terminal shunt regulator, maintaining stable output voltage across its cathode-anode terminals when reverse-biased above its specified Zener voltage. Its −2.0 to +2.5 mV/K temperature coefficient ensures predictable drift under ambient shifts from −55 °C to +150 °C.

Designed for surface-mount use on FR4 PCBs with single-sided 70 µm copper, it delivers 250 mW steady-state dissipation and withstands non-repetitive 40 W surges (100 μs, square wave), enabling robust transient suppression in compact power domains.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	5.49 V to 5.71 V at I_Z = 5 mA - defines precise clamping threshold for 5.6 V nominal rail regulation
Differential Resistance (r_dif)	≤400 Ω - limits output voltage variation under load current changes in feedback paths
Reverse Current (I_R)	≤1 μA at V_R = 4.2 V - ensures minimal leakage during standby in battery-powered systems
Total Power Dissipation (P_tot)	250 mW at T_amb ≤ 25 °C - sets maximum continuous DC power handling on standard PCB layout
Non-repetitive Peak Power (P_ZSM)	40 W for t_p = 100 μs - supports ESD and surge immunity per IEC 61000-4-2 Level 4
Junction-to-Ambient R_th	500 K/W - determines thermal rise under sustained bias; requires derating above 25 °C ambient

Pinout & Package

Package: SOT23 (TO-236AB), 3-lead surface-mount plastic package with 1.9 mm × 1.1 mm footprint and 1.2 mm height; optimized for reflow soldering per IPC-7095.

Pin/Terminal	Circuit Role	Design Meaning
1	Anode (A)	Forward conduction terminal; connected to lower-potential node in shunt regulation configuration
2	Not Connected (n.c.)	Internal die pad with no electrical bond; must remain unconnected on PCB to avoid parasitic coupling
3	Cathode (K)	Zener breakdown terminal; tied to regulated voltage rail and provides reference node for feedback networks

Key Features

Feature	Design Value
±2 % Zener tolerance	Enables tighter voltage margin control than ±5 % variants, reducing need for post-regulation trimming in 5 V logic interfaces
Low 1 μA reverse leakage	Minimizes quiescent current draw in always-on monitoring circuits, extending battery life in IoT endpoints
40 W surge rating	Provides single-event ESD robustness without external TVS, simplifying protection schemes for ADC input stages
SOT23 footprint compatibility	Allows drop-in replacement of legacy Zeners (e.g., MMBZ5232B) without PCB redesign or stencil changes
−55 °C to +150 °C operating range	Supports deployment in automotive under-hood modules and industrial motor drive control boards

Applications

Industrial Sensor Signal Conditioning

Microcontroller I/O Clamp Protection

Use Scenario: Stabilizing reference voltage for 12-bit SAR ADC measuring thermistor or strain gauge outputs in PLC analog input modules.

IC Role / Device Role / Timing Role: Shunt regulator providing 5.6 V reference to ADC VREF pin and clamping transient spikes on sensor lines.

Use Value: 400 Ω r_dif ensures <1 LSB error across 0–100 °C ambient range; 1 μA leakage avoids offset drift in high-impedance sensor bridges.

Use Scenario: Protecting GPIO pins of ARM Cortex-M4 microcontrollers against ESD events during field wiring in factory automation panels.

IC Role / Device Role / Timing Role: Low-capacitance (<300 pF) Zener clamp limiting pin voltage to 5.71 V during fast transients.

Use Value: 40 W surge rating absorbs IEC 61000-4-2 contact discharge without latch-up; SOT23 size fits tight pitch near MCU package edge.

Low-Power Battery Monitor Reference

USB-C VBUS Overvoltage Clamp

Use Scenario: Generating stable 5.6 V reference for comparator-based Li-ion cell voltage detection in portable medical devices.

IC Role / Device Role / Timing Role: Precision Zener supplying bias to comparator hysteresis network and reference divider.

Use Value: ±2 % tolerance eliminates calibration step; −2.0 to +2.5 mV/K TC matches typical comparator offset drift, minimizing temperature-induced trip point shift.

Use Scenario: Clamping VBUS line to safe level during hot-plug events or faulty charger insertion in USB-C peripheral designs.

IC Role / Device Role / Timing Role: Secondary overvoltage protector backing up primary USB-C PD controller fault response.

Use Value: 5.71 V max V_Z ensures clamp activates before 6 V absolute maximum rating of USB-C PHY ICs; 250 mW P_tot handles sustained 5.5 V overvoltage conditions.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBZ5232BS-7-F (Diodes Inc.)	5.1 V nominal, ±5 % tolerance, 17 Ω r_dif, 100 nA I_R at 4 V	Lower voltage, tighter r_dif, but higher tempco (−3.5 mV/K); better for low-current references	Select when ultra-low leakage (<100 nA) and minimal dynamic impedance outweigh exact 5.6 V requirement
BZX84-C5V6,215 (Nexperia)	5.2 V to 6.0 V tolerance (±5 %), 400 Ω r_dif, 1 μA I_R, same package	Wider voltage spread increases risk of undershoot in tight-margin 5 V systems	Choose only for cost-sensitive, non-critical rails where ±5 % regulation is acceptable

Compared with MMBZ5232BS-7-F, BZX84-B5V6,235 offers higher precision (±2 % vs ±5 %) and better thermal stability near 5.6 V, while BZX84-C5V6,215 trades accuracy for lower unit cost - making the B variant optimal for mid-tier industrial analog integrity.

Availability

BZX84-B5V6,235 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, microcontroller I/O clamp protection, low-power battery monitor reference, and USB-C VBUS overvoltage clamp requiring stable component supply and full traceability.

Supply support for BZX84-B5V6,235 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, headquartered in Nijmegen, Netherlands, with manufacturing in Asia and Europe.

The BZX84 series targets cost-effective, space-constrained voltage regulation and protection in consumer, industrial, and computing applications - emphasizing SMT scalability, parametric consistency, and long-term product continuity.

FAQ

What is the maximum continuous reverse current the BZX84-B5V6,235 can handle?

The device supports a maximum forward current of 200 mA per Absolute Maximum Ratings, but as a Zener diode, it is not rated for continuous reverse conduction. Its steady-state operation relies on controlled reverse bias at or above V_Z; sustained reverse current must be limited by external series resistance to keep power dissipation ≤250 mW at 25 °C ambient.

Can BZX84-B5V6,235 replace BZX84-A5V6 in an existing design?

Yes, but with trade-offs: the 'A' variant has ±1 % tolerance (5.54–5.66 V), while 'B' is ±2 % (5.49–5.71 V). If the circuit's regulation margin accommodates the wider band and temperature coefficient (−2.0 to +2.5 mV/K vs −2.7 to +1.2 mV/K for 'A'), substitution is electrically valid and maintains identical SOT23 footprint and thermal behavior.

Is BZX84-B5V6,235 qualified for automotive applications?

No - per Nexperia's Rev. 7 datasheet, this part is explicitly marked non-automotive qualified. It lacks AEC-Q101 stress testing and automotive-grade process controls. For automotive use, select the BZX84-Q series (e.g., BZX84-Q5V6,215), which undergoes extended temperature cycling, HTOL, and ESD validation per automotive requirements.

How does the n.c. pin (Pin 2) affect PCB layout?

Pin 2 is internally unconnected and must remain floating on the PCB - no trace, pad, or solder mask opening should tie it to ground, power, or signal nets. Routing traces adjacent to Pin 2 is permissible, but thermal vias or large copper pours beneath it may induce parasitic capacitance or mechanical stress; maintain ≥0.2 mm clearance per Nexperia's SOT23 layout guidelines.

BZX84-B5V6,235 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: BZX84

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 5.6 V

Tolerance:: ±2%

Power - Max:: 250 mW

Impedance (Max) (Zzt):: 40 Ohms

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

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

Operating Temperature:: -65°C ~ 150°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

BZX84-B5V6,235 FAQ

1.How can I place an order for BZX84-B5V6,235 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX84-B5V6,235 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-B5V6,235 reliable?

The price and inventory of BZX84-B5V6,235 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-B5V6,235 is usually 5 days.

3.What payment methods are accepted for BZX84-B5V6,235?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-B5V6,235 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX84-B5V6,235?

BZX84-B5V6,235 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX84-B5V6,235 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-B5V6,235?

For technical support, including BZX84-B5V6,235 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-B5V6,235 requirements.

6.How does Aetrix verify that BZX84-B5V6,235 is sourced from the original manufacturer or authorized distributors?

All BZX84-B5V6,235 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-B5V6,235 meets industry standards.

7.What is the process for return or replacement of BZX84-B5V6,235?

All BZX84-B5V6,235 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-B5V6,235, 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-B5V6,235 part is unused and in its original packaging.

Return procedure for BZX84-B5V6,235:

1.Submit a request within 90 days.

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

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