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. BZX84-C8V2/DG/B3:2

Name: BZX84-C8V2/DG/B3:2
Brand: Nexperia USA Inc.
SKU: BZX84-C8V2/DG/B3:2
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: BZX84-C8V2/DG/B3:2

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

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

Datasheet:: BZX84-C8V2/DG/B3:2.pdf

Description:: DIODE ZENER 8.2V 250MW TO236AB

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:7,942

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

Product details

Overview

BZX84-C8V2/DG/B3:2 from Nexperia is an 8.2 V ±5 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 250 mW total power dissipation at 25 °C ambient, with 150 °C maximum junction temperature and 7.7–8.7 V nominal breakdown range at I_Z = 5 mA. It serves as a precision reference or overvoltage clamp in low-power analog and digital supply rails.

For engineers reviewing the BZX84-C8V2/DG/B3:2 datasheet, BZX84-C8V2/DG/B3:2 pinout, BZX84-C8V2/DG/B3:2 application, or BZX84-C8V2/DG/B3:2 equivalent, key selection criteria include Zener voltage tolerance (±5 %), differential resistance (≤80 Ω at 5 mA), reverse current (≤0.7 μA at 6.56 V), thermal resistance (330 K/W to solder point), and non-repetitive surge capability (40 W, 100 μs).

Technical Context

This device operates in reverse-biased Zener breakdown mode, delivering stable regulation across 5 mA test current with a temperature coefficient of +3.2 to +6.2 mV/K - indicating positive drift above 6 V nominal, requiring thermal compensation in precision references. Its low 80 Ω typical differential resistance ensures minimal output impedance under load variation.

The SOT23 package enables high-density PCB layout while maintaining thermal performance via direct cathode tab conduction (R_th(j-sp) = 330 K/W). Non-repetitive peak reverse power handling (40 W, 100 μs) supports transient suppression in low-energy surge events without thermal runaway.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	7.7–8.7 V at I_Z = 5 mA; defines regulated output voltage window under nominal bias
Tolerance	±5 %; specifies worst-case deviation from 8.2 V nominal, critical for reference accuracy
Differential Resistance (r_dif)	≤80 Ω at I_Z = 5 mA; determines output impedance and load regulation error
Reverse Current (I_R)	≤0.7 μA at V_R = 6.56 V; indicates leakage level below breakdown, affecting standby power
Total Power Dissipation (P_tot)	250 mW at T_amb ≤ 25 °C on FR4 PCB; sets continuous DC power limit before thermal derating
Non-repetitive Peak Power (P_ZSM)	40 W for t_p = 100 μs; enables short-duration transient clamping without failure
Junction Temperature (T_j)	−55 to +150 °C; defines operational thermal envelope for reliability in industrial environments

Pinout & Package

Package: SOT23 (TO-236AB), 3-lead surface-mount plastic package with standard footprint per Fig. 12 (reflow) and Fig. 13 (wave); dimensions per Fig. 11 (1.9 × 1.1 × 0.9 mm body, 0.45 mm lead pitch).

Pin/Terminal	Circuit Role	Design Meaning
1	Anode (A)	Forward current entry point; connected to lower-potential node in Zener regulation configuration
2	Not Connected (n.c.)	Internally unconnected; must remain floating - no PCB trace or component attachment
3	Cathode (K)	Reverse-bias terminal; connects to regulated output node and provides primary thermal path to PCB

Key Features

Feature	Design Value
Low-power regulation	250 mW P_tot enables use in battery-powered and space-constrained circuits without heatsinking
±5 % voltage tolerance	Cost-optimized alternative to tighter-tolerance A/B series where absolute accuracy is secondary to stability
Three-terminal SOT23 package	Standardized footprint allows drop-in replacement across BZX84-C variants and compatible Zeners
150 °C max junction temperature	Supports operation in extended-temperature industrial environments without derating at full power
40 W surge rating	Provides robustness against ESD and line transients in unprotected input stages

Applications

Power Supply Reference

Overvoltage Protection

Use Scenario: Providing stable 8.2 V reference for ADC voltage dividers or op-amp bias networks in sensor signal conditioning circuits.

IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to generate fixed reference potential independent of supply ripple.

Use Value: Delivers <1 % regulation error over 1–10 mA load range due to low 80 Ω r_dif, minimizing measurement offset.

Use Scenario: Clamping 12 V rail surges in microcontroller I/O protection circuits to prevent latch-up or damage.

IC Role / Device Role / Timing Role: Shunt limiter activated during overvoltage events exceeding 8.7 V, diverting excess current to ground.

Use Value: Withstands 40 W transient pulses (100 μs), absorbing energy before upstream fuses or TVS devices activate.

Signal Level Translation

Current Source Biasing

Use Scenario: Generating 8.2 V bias for MOSFET gate drivers in low-side switch control logic interfacing with 3.3 V MCU outputs.

IC Role / Device Role / Timing Role: Voltage translator establishing intermediate logic threshold between incompatible voltage domains.

Use Value: Stable V_Z tolerance ensures consistent switching point despite supply variation, reducing timing jitter.

Use Scenario: Setting bias current for constant-current LED drivers using resistor-Zener combinations in portable lighting modules.

IC Role / Device Role / Timing Role: Precision voltage reference defining current through series sense resistor (e.g., 1 kΩ → 8.2 mA).

Use Value: Low 0.7 μA leakage at 6.56 V prevents significant error in sub-mA bias currents, improving current accuracy.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor MMBZ5231BS	8.2 V ±5 %, 350 mW P_tot, 100 Ω r_dif, SOT23 package	Higher power rating enables higher current regulation but larger thermal footprint	Select when >250 mW continuous dissipation is required and board space permits marginally larger thermal pad
Vishay BZX84-C8V2-7-F	Identical 8.2 V ±5 %, 250 mW, 80 Ω r_dif, same SOT23 pinout and marking	No functional difference; qualified to AEC-Q200 Grade 3 for automotive-adjacent industrial use	Choose for designs requiring extended reliability validation or traceability to automotive-grade sourcing standards

Compared with MMBZ5231BS, BZX84-C8V2/DG/B3:2 offers lower differential resistance for tighter regulation at low currents; versus BZX84-C8V2-7-F, it lacks AEC-Q200 qualification but shares identical electrical behavior and footprint for cost-sensitive industrial use.

Availability

BZX84-C8V2/DG/B3:2 is available at Aetrix Electronics and suitable for power supply reference, overvoltage protection, and signal level translation requiring stable component supply across industrial automation, consumer electronics, and embedded sensor systems.

Supply support for BZX84-C8V2/DG/B3:2 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 belongs to Nexperia's precision Zener regulator portfolio, engineered for cost-effective, space-efficient voltage reference and clamping in consumer, industrial, and computing applications where ±5 % tolerance meets system requirements.

FAQ

What is the maximum continuous forward current for BZX84-C8V2/DG/B3:2?

The device is not intended for continuous forward conduction. Its absolute maximum forward current is 200 mA per limiting values table, but sustained forward bias exceeds its design purpose and risks thermal overstress. Forward voltage is specified only for characterization (0.9 V at 10 mA pulse), not operational use.

Can BZX84-C8V2/DG/B3:2 be used in parallel for higher power dissipation?

No - Zener diodes exhibit negative temperature coefficients below ~5 V and positive above, causing current hogging and thermal runaway when paralleled. Even within the same batch, V_Z mismatch (±5 %) leads to unequal current sharing; external ballast resistors are mandatory and rarely practical for SOT23 devices.

Is pin 2 electrically isolated or internally bonded in the SOT23 package?

Pin 2 is explicitly designated "not connected" (n.c.) in the official pinning table and simplified outline. It is not internally bonded to any die structure and must remain unconnected on the PCB - no trace, pad, or thermal relief should attach to it to avoid mechanical stress or unintended coupling.

How does temperature affect the Zener voltage of BZX84-C8V2/DG/B3:2?

At 8.2 V nominal, the temperature coefficient is +3.2 to +6.2 mV/K (per Table 8), meaning V_Z increases by ~0.5 %/°C over 25–100 °C. This positive drift must be accounted for in precision references; compensation networks or higher-voltage Zeners with near-zero TC (e.g., 5.6 V) are used where stability is critical.

BZX84-C8V2/DG/B3:2 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:: Obsolete

Voltage - Zener (Nom) (Vz):: 8.2 V

Tolerance:: ±5%

Power - Max:: 250 mW

Impedance (Max) (Zzt):: 15 Ohms

Current - Reverse Leakage @ Vr:: 700 nA @ 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-C8V2/DG/B3:2 FAQ

1.How can I place an order for BZX84-C8V2/DG/B3:2 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX84-C8V2/DG/B3:2 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-C8V2/DG/B3:2 reliable?

The price and inventory of BZX84-C8V2/DG/B3:2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-C8V2/DG/B3:2 is usually 5 days.

3.What payment methods are accepted for BZX84-C8V2/DG/B3:2?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C8V2/DG/B3:2 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX84-C8V2/DG/B3:2?

BZX84-C8V2/DG/B3:2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX84-C8V2/DG/B3:2 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-C8V2/DG/B3:2?

For technical support, including BZX84-C8V2/DG/B3:2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C8V2/DG/B3:2 requirements.

6.How does Aetrix verify that BZX84-C8V2/DG/B3:2 is sourced from the original manufacturer or authorized distributors?

All BZX84-C8V2/DG/B3:2 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-C8V2/DG/B3:2 meets industry standards.

7.What is the process for return or replacement of BZX84-C8V2/DG/B3:2?

All BZX84-C8V2/DG/B3:2 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C8V2/DG/B3:2, 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-C8V2/DG/B3:2 part is unused and in its original packaging.

Return procedure for BZX84-C8V2/DG/B3:2:

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…