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

Nexperia USA Inc. BZV49-C8V2,115

Name: BZV49-C8V2,115
Brand: Nexperia USA Inc.
SKU: BZV49-C8V2,115
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZV49-C8V2,115

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: TO-243AA

Datasheet:: BZV49-C8V2,115.pdf

Description:: DIODE ZENER 8.2V 1W SOT89

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Product details

Overview

BZV49-C8V2,115 from Nexperia is a medium-power Zener voltage regulator diode in SOT89 package, designed for precision DC voltage reference and stabilization in power supply rails. It delivers nominal 8.2 V regulation at 5 mA test current, with ±5% tolerance, 6 Ω typical differential resistance, and +3.2 to +6.2 mV/K temperature coefficient. Used in industrial power management circuits requiring stable biasing under varying thermal conditions.

For engineers reviewing the BZV49-C8V2,115 datasheet, BZV49-C8V2,115 pinout, BZV49-C8V2,115 application, or BZV49-C8V2,115 equivalent, this page provides verified electrical parameters, thermal behavior, SOT89 terminal mapping, real-world use scenarios, and validated alternative parts for voltage reference design continuity.

Technical Context

The BZV49-C8V2,115 operates as a two-terminal shunt regulator, maintaining stable output voltage by conducting reverse current above its breakdown threshold. Its 8.2 V nominal Zener voltage is specified at I_Ztest = 5 mA, with differential resistance of ≤15 Ω (max) ensuring low dynamic impedance for ripple suppression.

Thermal performance is defined with R_th(j-tp) = 15 K/W (junction-to-tie-point) and R_th(j-a) = 125 K/W (junction-to-ambient on 2.5 cm² ceramic substrate), supporting reliable operation up to T_j = 150 °C. Non-repetitive peak reverse power dissipation reaches 40 W for 100 μs pulses.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage V_Z	7.7 V to 8.7 V at 5 mA - ensures ±5% regulation accuracy across production lot
Differential Resistance r_dif	6 Ω typ., ≤15 Ω max - enables effective rejection of input ripple in linear regulators
Temperature Coefficient S_Z	+3.2 to +6.2 mV/K - defines predictable positive drift over −65 °C to +150 °C operating range
Total Power Dissipation P_tot	1 W at T_amb = 25 °C - sets continuous thermal limit for PCB layout and heatsinking
Reverse Current I_R	≤0.7 μA at V_R = 6.56 V - guarantees low leakage in standby or battery-backed circuits
Junction Temperature T_j	−65 °C to +150 °C - supports automotive under-hood and industrial control environments
Diode Capacitance C_d	150 pF at 1 MHz, V_R = 0 V - impacts high-frequency noise coupling in sensitive analog stages

Pinout & Package

Supplied in SOT89 (SC-62) surface-mount plastic package with exposed collector pad for enhanced thermal conduction. Three terminals: Pin 1 (anode), Pin 2 (cathode), Pin 3 (anode). The dual-anode configuration supports symmetrical mounting and thermal symmetry on PCB.

Pin/Terminal	Circuit Role	Design Meaning
1	Anode	Primary anode connection; tied to ground or low-side reference node in shunt regulator topology
2	Cathode	Zener cathode; connects to regulated rail; carries full reverse current during regulation
3	Anode	Secondary anode; electrically identical to Pin 1; improves thermal path and mechanical stability

Key Features

Feature	Design Value
±5% Zener voltage tolerance	Enables direct replacement without recalibration in legacy 8.2 V reference designs
1 W continuous power rating	Supports >100 mA load current capability when used with series resistor in standard shunt configuration
SOT89 thermal pad design	Reduces junction-to-PCB thermal resistance by ~30% vs. standard SOT23, improving long-term reliability
Low 0.7 μA max reverse leakage at 6.56 V	Minimizes quiescent current draw in always-on monitoring circuits and battery-powered sensors
E24 voltage series coverage	Ensures seamless selection across 37 standard Zener values from 2.4 V to 75 V for system-level voltage scaling

Applications

Industrial Power Monitoring

Automotive ECU Reference

Use Scenario: Voltage supervision circuit in programmable logic controller (PLC) I/O module detecting 24 V rail undervoltage.

IC Role / Device Role / Timing Role: Shunt reference providing stable 8.2 V threshold for comparator input against scaled rail voltage.

Use Value: Tight ±5% tolerance and +4.6 mV/K tempco allow accurate trip point calibration across −40 °C to +85 °C ambient without software compensation.

Use Scenario: Bias voltage source for CAN transceiver V_IO pin in engine control unit.

IC Role / Device Role / Timing Role: Precision 8.2 V reference stabilizing I/O logic level translation between microcontroller and physical layer.

Use Value: 150 pF capacitance and low leakage prevent signal integrity degradation on high-speed CAN FD bus lines.

Medical Sensor Signal Conditioning

Consumer Audio DC Biasing

Use Scenario: Reference for 16-bit ADC in portable pulse oximeter measuring photodiode current.

IC Role / Device Role / Timing Role: Low-noise Zener supplying clean 8.2 V reference to ADC voltage reference input (VREF+).

Use Value: 6 Ω differential resistance suppresses power supply ripple, enabling <1 LSB INL error over full-scale conversion range.

Use Scenario: DC offset setting for Class AB headphone amplifier stage in wireless earbuds.

IC Role / Device Role / Timing Role: Stable bias generator establishing quiescent operating point for complementary output transistors.

Use Value: Dual-anode SOT89 package minimizes thermal gradient-induced DC drift during extended playback sessions.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMSZ4702T1G	8.2 V ±5%, SOD-123, 500 mW P_tot, 10 Ω r_dif	Lower power rating limits current handling in high-ripple environments	Select when board space is constrained and thermal load ≤300 mW
BZX84-C8V2	8.2 V ±5%, SOT23, 350 mW P_tot, 15 Ω r_dif	Higher dynamic impedance and lower thermal mass reduce regulation stability under transient load	Choose only for cost-sensitive consumer applications with minimal thermal stress

Compared with MMSZ4702T1G and BZX84-C8V2, the BZV49-C8V2,115 offers superior thermal robustness (1 W rating, SOT89 pad), lower differential resistance (6 Ω typ.), and dual-anode mechanical stability-critical for industrial and automotive systems where long-term voltage drift and vibration resistance matter.

Availability

BZV49-C8V2,115 is available at Aetrix Electronics and suitable for industrial power monitoring, automotive ECU reference, and medical sensor signal conditioning requiring stable component supply and long-lifecycle support.

Supply support for BZV49-C8V2,115 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 semiconductors, formed in 2017 from the former NXP Standard Products division, specializing in high-reliability components for automotive, industrial, and computing markets.

The BZV49 series belongs to Nexperia's voltage regulator diode product line, engineered for precision shunt regulation in space-constrained, thermally demanding applications where ±5% tolerance and stable temperature coefficient are essential.

FAQ

What is the maximum continuous reverse current the BZV49-C8V2,115 can sustain at 25 °C?

The device supports continuous Zener current up to 125 mA at 25 °C ambient, calculated from its 1 W total power dissipation rating and nominal 8.2 V Zener voltage (I_Zmax = P_tot/V_Z). Derating applies above 25 °C per R_th(j-a) = 125 K/W, reducing usable current linearly to zero at 150 °C junction temperature.

How does the dual-anode configuration (Pins 1 and 3) affect PCB layout and thermal performance?

Pins 1 and 3 are internally connected anodes, enabling symmetric copper pour placement beneath both terminals. This doubles the thermal interface area to the PCB, lowering effective R_th(j-pcb) by ~25% versus single-anode packages and reducing thermal stress during pulsed overload events.

Can the BZV49-C8V2,115 be used in place of a BZX84-C8V2 in an existing SOT23 footprint?

No-it uses SOT89 (3.75 mm × 4.25 mm) versus SOT23 (2.9 mm × 1.3 mm) and has different pinout (anode-cathode-anode vs. anode-cathode). Mechanical and thermal redesign is required; electrical substitution alone is insufficient due to higher power handling and lower impedance.

What is the significance of the "115" suffix in BZV49-C8V2,115?

The "115" denotes Nexperia's internal ordering code indicating tape-and-reel packaging (12 mm tape width, 1000 pcs/reel), RoHS-compliant finish, and compliance with JEDEC J-STD-020 moisture sensitivity level 1 (unlimited floor life at ≤30 °C/85% RH).

BZV49-C8V2,115 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):: 8.2 V

Tolerance:: ±5%

Power - Max:: 1 W

Impedance (Max) (Zzt):: 15 Ohms

Current - Reverse Leakage @ Vr:: 700 nA @ 5 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-C8V2,115 FAQ

1.How can I place an order for BZV49-C8V2,115 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZV49-C8V2,115 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-C8V2,115 reliable?

The price and inventory of BZV49-C8V2,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV49-C8V2,115 is usually 5 days.

3.What payment methods are accepted for BZV49-C8V2,115?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV49-C8V2,115 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZV49-C8V2,115?

BZV49-C8V2,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZV49-C8V2,115 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-C8V2,115?

For technical support, including BZV49-C8V2,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV49-C8V2,115 requirements.

6.How does Aetrix verify that BZV49-C8V2,115 is sourced from the original manufacturer or authorized distributors?

All BZV49-C8V2,115 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-C8V2,115 meets industry standards.

7.What is the process for return or replacement of BZV49-C8V2,115?

All BZV49-C8V2,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZV49-C8V2,115, 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-C8V2,115 part is unused and in its original packaging.

Return procedure for BZV49-C8V2,115:

1.Submit a request within 90 days.

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

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