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

Nexperia USA Inc. BZV49-C68,115

Name: BZV49-C68,115
Brand: Nexperia USA Inc.
SKU: BZV49-C68,115
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZV49-C68,115

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: TO-243AA

Datasheet:: BZV49-C68,115.pdf

Description:: DIODE ZENER 68V 1W SOT89

Quantity:: RFQ Add To RFQ list

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Inventory:9,164

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Product details

Overview

BZV49-C68,115 from Nexperia is a medium-power Zener voltage regulator diode in SOT89 package, rated for 68 V nominal working voltage (64–72 V range), 1 W total power dissipation, and ±5% tolerance. It delivers stable reference voltage in low-current regulation circuits, such as power supply feedback loops and overvoltage protection in industrial sensor interfaces.

For engineers reviewing the BZV49-C68,115 datasheet, BZV49-C68,115 pinout, BZV49-C68,115 application, or BZV49-C68,115 equivalent, key selection criteria include its 68 V Zener voltage at 2 mA test current, 90 Ω typical differential resistance, −0.25 mV/K temperature coefficient, 35 pF junction capacitance, and non-repetitive peak reverse current capability of 0.2 A.

Technical Context

This device operates as a two-terminal shunt voltage reference, conducting in reverse breakdown to clamp voltage across a load. Its thermal resistance from junction to tie-point is 15 K/W, enabling reliable operation up to 150 °C junction temperature when mounted on a ceramic substrate (2.5 cm², 0.7 mm thick).

The BZV49-C68,115 exhibits a negative temperature coefficient (−0.25 mV/K) near its 68 V operating point, indicating decreasing Zener voltage with rising temperature - a critical factor in precision reference designs requiring thermal stability compensation.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage V_Z	64–72 V at I_Ztest = 2 mA; defines clamping threshold for overvoltage protection
Differential Resistance r_dif	90 Ω max; determines output impedance and regulation sensitivity to current changes
Temp. Coefficient S_Z	−0.25 mV/K; quantifies voltage drift per degree Celsius at nominal operating point
Junction Capacitance C_d	35 pF at f = 1 MHz, V_R = 0 V; impacts high-frequency noise filtering and transient response
Non-repetitive Peak I_ZSM	0.2 A at t_p = 100 μs; supports surge suppression in transient-limited applications
Total Power Dissipation P_tot	1 W at T_amb = 25 °C; sets maximum continuous power handling under standard mounting
Reverse Current I_R	≤0.05 μA at V_R = 51 V; ensures minimal leakage in high-impedance bias networks

Pinout & Package

Package: SOT89 (SC-62), surface-mount plastic package with exposed collector pad for enhanced thermal conduction. Dimensions: 4.6 × 2.6 × 1.6 mm (L × W × H), 3-lead configuration.

Pin/Terminal	Circuit Role	Design Meaning
1	Anode	Forward-biased terminal; connects to lower-potential node in regulation path
2	Cathode	Reverse-biased terminal; connects to regulated voltage node and current-limiting resistor
3	Anode	Second anode connection tied internally to Pin 1; provides mechanical stability and improved heat transfer via shared pad

Key Features

Feature	Design Value
E24 voltage grading	68 V nominal with ±5% tolerance enables predictable binning for production calibration
1 W power rating	Supports higher-current regulation than standard 400 mW Zeners without derating at 25 °C ambient
SOT89 thermal design	Exposed pad and low R_th(j-tp) = 15 K/W allow sustained operation under moderate thermal load
Low leakage current	≤0.05 μA at 75% of V_Z preserves accuracy in high-impedance feedback networks

Applications

Industrial Power Supply Feedback

Automotive Sensor Reference

Use Scenario: Regulates output voltage in isolated flyback converters using optocoupler feedback.

IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 68 V threshold for error amplifier input.

Use Value: Enables ±1% output regulation stability across line/load/temperature variations due to tight V_Z tolerance and low r_dif.

Use Scenario: Supplies stable bias voltage to analog front-end circuitry in engine control unit (ECU) pressure sensors.

IC Role / Device Role / Timing Role: Precision voltage reference for ADC reference divider network.

Use Value: Maintains <±2 LSB error over −40 to +125 °C via matched temperature coefficient and low drift.

Overvoltage Clamp for CAN Transceivers

Programmable Threshold Detector

Use Scenario: Protects ISO 11898-2 compliant CAN bus transceiver inputs against load dump transients.

IC Role / Device Role / Timing Role: Fast-acting shunt clamp limiting bus voltage to 68 V during 12 V system surges.

Use Value: Absorbs 40 W non-repetitive peaks (100 μs) without failure, meeting automotive load-dump immunity requirements.

Use Scenario: Sets trip point in discrete comparator-based battery monitoring circuit for 48 V telecom systems.

IC Role / Device Role / Timing Role: Programmable Zener threshold element defining upper voltage limit for charge control logic.

Use Value: Provides repeatable 68 V trigger with <1% hysteresis due to stable V_Z and minimal capacitive loading (35 pF).

Availability

BZV49-C68,115 is available at Aetrix Electronics and suitable for industrial power supplies, automotive sensor interfaces, and telecom battery management systems requiring stable component supply and long-term obsolescence support.

Supply support for BZV49-C68,115 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 leader in discrete, logic, and PowerMOS semiconductors, formed in 2017 from the former NXP Standard Products division, serving automotive, industrial, computing, and consumer markets.

The BZV49 series belongs to Nexperia's voltage regulator diode product line, engineered for medium-power, high-stability shunt regulation in space-constrained SMD applications where thermal performance and E24 voltage granularity are critical.

FAQ

What is the maximum continuous reverse current for BZV49-C68,115 at 25 °C?

The device does not specify a maximum continuous reverse current independent of power dissipation. At 25 °C ambient, it supports up to 14.7 mA continuous reverse current (68 V × 14.7 mA ≈ 1 W), assuming no thermal derating. Actual usable current depends on PCB layout, copper area, and ambient conditions per R_th(j-a) = 125 K/W.

Is BZV49-C68,115 RoHS compliant and halogen-free?

Yes. As a Nexperia standard product manufactured after 2017, BZV49-C68,115 conforms to RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21, verified in Nexperia's material declarations and PPAP documentation for SOT89-packaged devices.

Can BZV49-C68,115 replace BZX84-C68 in a design?

No - BZX84-C68 uses SOT23 packaging (0.35 W rating, R_th(j-a) ≈ 300 K/W), while BZV49-C68,115 is SOT89-rated for 1 W and has 2× lower thermal resistance. Direct substitution risks thermal runaway unless board layout and power budget are revalidated for the higher power capability.

What is the recommended solder profile for BZV49-C68,115?

Nexperia specifies a lead-free reflow profile per JEDEC J-STD-020: peak temperature 260 °C (max), time above liquidus 60–150 s, ramp-up rate ≤3 °C/s. The SOT89 package requires adequate preheat to avoid pad lifting; thermal relief on Pin 2 (cathode) is advised due to its internal tie to the exposed pad.

BZV49-C68,115 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: TO-243AA

Packaging:: Tape & Reel (TR)

Product Status:: Active

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

Tolerance:: ±5%

Power - Max:: 1 W

Impedance (Max) (Zzt):: 240 Ohms

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

Voltage - Forward (Vf) (Max) @ If:: 1 V @ 50 mA

Operating Temperature:: -65°C ~ 150°C

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-89

BZV49-C68,115 FAQ

1.How can I place an order for BZV49-C68,115 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZV49-C68,115 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 BZV49-C68,115 reliable?

The price and inventory of BZV49-C68,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV49-C68,115 is usually 5 days.

3.What payment methods are accepted for BZV49-C68,115?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV49-C68,115 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZV49-C68,115?

BZV49-C68,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZV49-C68,115 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 BZV49-C68,115?

For technical support, including BZV49-C68,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV49-C68,115 requirements.

6.How does Aetrix verify that BZV49-C68,115 is sourced from the original manufacturer or authorized distributors?

All BZV49-C68,115 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 BZV49-C68,115 meets industry standards.

7.What is the process for return or replacement of BZV49-C68,115?

All BZV49-C68,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZV49-C68,115, 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 BZV49-C68,115 part is unused and in its original packaging.

Return procedure for BZV49-C68,115:

1.Submit a request within 90 days.

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

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