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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Zener Diode Arrays

Nexperia USA Inc. BZB84-B68,215

Name: BZB84-B68,215
Brand: Nexperia USA Inc.
SKU: BZB84-B68,215
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZB84-B68,215

Manufacturer:: Nexperia USA Inc.

Category:: Zener Diode Arrays

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

Datasheet:: BZB84-B68,215.pdf

Description:: DIODE ZENER ARRAY 68V SOT23

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Product details

Overview

BZB84-B68,215 from Nexperia is a dual common-anode Zener diode in SOT23 package, designed for precision voltage regulation and overvoltage protection in compact DC power rails. It delivers nominal 68 V Zener voltage (66.6–69.4 V), ±2 % tolerance, 80 Ω differential resistance at I_Z = 2 mA, and supports non-repetitive peak reverse current up to 0.25 A under 100 µs surge conditions - deployed in automotive body control modules and industrial sensor signal conditioning.

For engineers reviewing the BZB84-B68,215 datasheet, BZB84-B68,215 pinout, BZB84-B68,215 application, or BZB84-B68,215 equivalent, this page provides verified Zener voltage range, thermal resistance (R_th(j-a) = 417 K/W), dual-diode configuration details, and AEC-Q101 qualification status for automotive-grade reliability assessment.

Technical Context

This dual Zener diode integrates two independent 68 V Zener elements sharing a common anode (Pin 3), enabling bidirectional clamping or complementary reference generation in single-supply systems. Its design supports low-temperature-coefficient operation (+47.6 mV/K typical at I_Z = 2 mA) and maintains stable regulation across −55 °C to +150 °C ambient range.

The device operates within strict absolute maximum ratings: total power dissipation ≤300 mW at T_amb ≤25 °C, non-repetitive peak reverse power ≤40 W (100 µs square wave), and junction temperature limited to 150 °C - validated per IEC 60134 and AEC-Q101 stress testing protocols.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	66.6 V to 69.4 V at I_Z = 2 mA - defines precise clamping threshold for 68 V nominal rail protection
Tolerance	±2 % - ensures tight voltage matching critical for dual-diode symmetry in reference circuits
Differential Resistance (r_dif)	475 Ω max at I_Z = 2 mA - determines regulation stiffness and output impedance in shunt regulator designs
Reverse Current (I_R)	≤0.05 µA at V_R = 54.4 V - guarantees minimal leakage in high-impedance bias networks
Non-repetitive Peak Reverse Current (I_ZSM)	0.25 A at t_p = 100 µs - enables transient surge suppression without thermal runaway
Total Power Dissipation (P_tot)	300 mW at T_amb ≤25 °C - sets continuous DC power handling limit on standard FR4 PCB
Thermal Resistance (R_th(j-a))	417 K/W - quantifies self-heating under load; requires derating above 25 °C ambient

Pinout & Package

SOT23 (TO-236AB) plastic surface-mount package with 3 leads, 1.3 mm height, and standard footprint compatible with reflow and wave soldering per JEDEC MO-215.

Pin/Terminal	Circuit Role	Design Meaning
1	Cathode (Diode 1)	Provides 68 V Zener clamping path from external node to shared anode; used for positive-side regulation
2	Cathode (Diode 2)	Enables second 68 V clamping path - allows symmetrical bidirectional protection or dual-reference generation
3	Common Anode	Single connection point for both Zener cathodes; simplifies PCB routing and reduces component count in dual-rail designs

Key Features

Feature	Design Value
Dual common-anode configuration	Reduces board space by 50 % vs. discrete dual-Zener solutions while maintaining independent cathode control
AEC-Q101 qualification	Validated for automotive applications including engine control units and ADAS power management subsystems
±2 % Zener voltage tolerance	Ensures matched clamping thresholds between diodes - critical for balanced voltage referencing in analog front-ends
Wide operating temperature range	−55 °C to +150 °C junction temperature support enables deployment in under-hood and industrial environments
Low capacitance (35 pF)	Minimizes high-frequency signal distortion in RF-coupled protection paths and fast-switching power supplies

Applications

Automotive Body Control Module (BCM)

Industrial Sensor Signal Conditioning

Use Scenario: Protecting LIN bus transceiver inputs against load-dump transients in 12 V vehicle electrical systems.

IC Role / Device Role / Timing Role: Dual-Zener clamps bidirectionally between LIN line and ground, using common-anode architecture to absorb ±100 V surges.

Use Value: Eliminates need for separate TVS diodes; leverages 0.25 A I_ZSM rating to survive ISO 7637-2 Pulse 5a without degradation.

Use Scenario: Stabilizing excitation voltage for 4–20 mA current-loop pressure sensors in factory automation PLCs.

IC Role / Device Role / Timing Role: Provides dual 68 V references for op-amp feedback networks and overvoltage cutoff comparators.

Use Value: ±2 % tolerance ensures <1 % total error budget in 16-bit ADC signal chains operating across −40 °C to +85 °C.

Telecom Power Supply Monitoring

Medical Diagnostic Equipment Biasing

Use Scenario: Monitoring −48 V DC telecom rectifier outputs for undervoltage/overvoltage alarms.

IC Role / Device Role / Timing Role: Acts as precision shunt reference in comparator input stage, leveraging low r_dif for stable trip-point accuracy.

Use Value: 475 Ω max differential resistance limits voltage drift to <20 mV over 10–100 mA sense current range.

Use Scenario: Generating isolated bias voltages for photodiode amplifiers in portable ultrasound front-ends.

IC Role / Device Role / Timing Role: Supplies regulated 68 V supply to avalanche photodiode arrays via resistive dropper and dual-Zener clamp.

Use Value: AEC-Q101 qualification and 150 °C T_j rating ensure reliability during extended diagnostic imaging sessions.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBZ5268BS-7-F	Single Zener (68 V, ±5 %), SOT23, no dual configuration	Requires two devices for dual-clamp function; higher BOM cost and layout area	Select when only unidirectional clamping is needed and space permits discrete placement
BZX84-C68	Single Zener (68 V, ±5 %), same SOT23 package but no common-anode dual structure	Lacks integrated dual-diode topology; cannot implement symmetrical reference without external wiring	Choose for cost-sensitive consumer applications where AEC-Q101 is not required

Compared with MMBZ5268BS-7-F and BZX84-C68, the BZB84-B68,215 uniquely delivers matched dual 68 V Zeners in one package with automotive qualification - reducing component count, improving thermal coupling, and enabling true bidirectional clamping without interconnect parasitics.

Availability

BZB84-B68,215 is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor signal conditioning, telecom power monitoring, and medical diagnostic equipment requiring stable component supply with AEC-Q101 assurance.

Supply support for BZB84-B68,215 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, reliable discrete and logic devices for automotive, industrial, and consumer markets.

The BZB84 series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for robust voltage regulation and transient protection in harsh-environment automotive and industrial control systems.

FAQ

What is the Zener voltage tolerance for BZB84-B68,215?

The BZB84-B68,215 has a ±2 % Zener voltage tolerance, meaning its nominal 68 V breakdown occurs between 66.6 V and 69.4 V at I_Z = 2 mA. This tighter tolerance than standard ±5 % Zeners supports precision reference and matched dual-diode operation in safety-critical automotive circuits.

How does the dual common-anode configuration affect circuit design?

The common-anode topology (Pin 3) allows both Zener cathodes (Pins 1 and 2) to clamp independently to the same reference potential. This enables bidirectional overvoltage protection on differential signals or creation of symmetrical positive/negative references from a single supply - reducing PCB layer count and eliminating mismatch from discrete part variation.

Is BZB84-B68,215 suitable for reflow soldering?

Yes - the SOT23 package is qualified for standard lead-free reflow profiles per J-STD-020. Nexperia specifies a maximum peak temperature of 260 °C for 30 seconds, with preheat ramp rates ≤3 °C/s. The device's thermal resistance (R_th(j-a) = 417 K/W) and FR4-compatible footprint ensure reliable attachment without die cracking or bond wire damage.

What is the maximum non-repetitive surge capability?

At t_p = 100 µs (square wave, T_j = 25 °C prior to surge), BZB84-B68,215 supports up to 40 W non-repetitive peak reverse power dissipation, corresponding to 0.25 A peak reverse current. This meets ISO 7637-2 Pulse 5a requirements for 12 V automotive systems and enables protection against load-dump events without external TVS supplementation.

BZB84-B68,215 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

Configuration:: 1 Pair Common Anode

Voltage - Zener (Nom) (Vz):: 68 V

Tolerance:: ±2%

Power - Max:: 300 mW

Impedance (Max) (Zzt):: 240 Ohms

Current - Reverse Leakage @ Vr:: 50 nA @ 47.6 V

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

Operating Temperature:: -

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

BZB84-B68,215 FAQ

1.How can I place an order for BZB84-B68,215 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZB84-B68,215 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 BZB84-B68,215 reliable?

The price and inventory of BZB84-B68,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZB84-B68,215 is usually 5 days.

3.What payment methods are accepted for BZB84-B68,215?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZB84-B68,215 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZB84-B68,215?

BZB84-B68,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZB84-B68,215 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 BZB84-B68,215?

For technical support, including BZB84-B68,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZB84-B68,215 requirements.

6.How does Aetrix verify that BZB84-B68,215 is sourced from the original manufacturer or authorized distributors?

All BZB84-B68,215 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 BZB84-B68,215 meets industry standards.

7.What is the process for return or replacement of BZB84-B68,215?

All BZB84-B68,215 units undergo pre-shipment inspection (PSI). If there is an issue with BZB84-B68,215, 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 BZB84-B68,215 part is unused and in its original packaging.

Return procedure for BZB84-B68,215:

1.Submit a request within 90 days.

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

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