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

NXP Semiconductors PZU8.2B,115

Name: PZU8.2B,115
Brand: NXP Semiconductors
SKU: PZU8.2B,115
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PZU8.2B,115

Manufacturer:: NXP Semiconductors

Category:: Single Zener Diodes

Package:: -

Datasheet:: PZU8.2B,115.pdf

Description:: DIODE ZENER 8.2V 310MW SOD323F

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Product details

Overview

PZU8.2B,115 from NXP Semiconductors is a single Zener diode in SOD323F (SC-90) surface-mount package, designed for precision voltage regulation and reference functions at 8.2 V nominal Zener voltage with ±5 % tolerance. It delivers 60 Ω maximum differential resistance at I_Z = 5 mA, supports up to 310 mW total power dissipation at T_amb ≤ 25 °C, and operates across −65 °C to +150 °C ambient temperature - commonly used in low-power voltage clamping and analog reference circuits.

For engineers reviewing the PZU8.2B,115 datasheet, PZU8.2B,115 pinout, PZU8.2B,115 application, or PZU8.2B,115 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (R_th(j-a) = 400 K/W standard footprint), reverse current (I_R ≤ 10 nA at V_R = 5 V), temperature coefficient (+4.6 mV/K), and SOD323F package compatibility with high-density PCB layouts.

Technical Context

The PZU8.2B,115 operates as a two-terminal voltage reference device, conducting in reverse breakdown at precisely defined Zener voltage under controlled test current (I_Z = 5 mA). Its junction temperature range spans −65 °C to +150 °C, and it exhibits a positive temperature coefficient of +4.6 mV/K, indicating increasing V_Z with rising temperature.

Thermal performance depends on PCB mounting: R_th(j-a) is 400 K/W on standard FR4 (single-sided copper, tin-plated), improving to 230 K/W with a 1 cm² cathode pad. Non-repetitive peak reverse power dissipation reaches 40 W for t_p = 100 μs square-wave surges.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener voltage V_Z	7.76 V to 8.64 V at I_Z = 5 mA - defines stable regulation window for low-noise reference design
Differential resistance r_dif	≤60 Ω - ensures minimal output voltage variation under load current changes
Reverse current I_R	≤10 nA at V_R = 5 V - enables ultra-low leakage in battery-powered or high-impedance bias networks
Temperature coefficient S_Z	+4.6 mV/K at I_Z = 5 mA - quantifies V_Z drift per degree Celsius for thermal stability analysis
Total power dissipation P_tot	310 mW at T_amb ≤ 25 °C - sets maximum continuous DC power before thermal derating applies
Junction temperature T_j	−65 °C to +150 °C - confirms suitability for industrial and automotive under-hood environments
Forward voltage V_F	≤1.1 V at I_F = 100 mA - defines conduction loss when used in polarity protection or ESD clamp configurations

Pinout & Package

SOD323F (SC-90) plastic surface-mounted package: 2.3–2.7 mm length, 1.15–1.35 mm width, 0.25–0.40 mm height; marking bar denotes cathode terminal.

Pin/Terminal	Circuit Role	Design Meaning
1	Cathode	Connected to regulated output node; reverse-biased during Zener operation; marked with bar on package
2	Anode	Connected to ground or lower-potential rail; completes reverse-bias path for regulation

Key Features

Feature	Design Value
±5 % Zener voltage tolerance (B grade)	Enables predictable regulation without post-production trimming in cost-sensitive consumer and industrial designs
Ultra-small SOD323F footprint	Supports high-density PCB layouts with 0.6 mm pitch and <1.4 mm² board area - ideal for space-constrained wearables and IoT sensors
Low reverse leakage (≤10 nA)	Minimizes quiescent current draw in always-on monitoring circuits and extends battery life in portable devices
Positive temperature coefficient (+4.6 mV/K)	Allows predictable V_Z compensation in temperature-critical references; avoids need for external thermistors
Reflow-solder compatible only	Ensures reliable assembly in automated SMT lines without risk of thermal damage from wave or hand soldering

Applications

Power Supply Voltage Clamp	Low-Power Analog Reference
Use Scenario: Clamping transient overvoltage on 5 V or 9 V supply rails in microcontroller-based control modules. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to shunt excess current and limit rail voltage excursion. Use Value: Prevents latch-up or damage to downstream logic ICs by holding voltage within ±0.5 V of rated rail using its 7.76–8.64 V V_Z window and 40 W surge capability.	Use Scenario: Providing stable bias voltage for op-amp input stages or ADC reference dividers in sensor signal conditioning circuits. IC Role / Device Role / Timing Role: Precision voltage reference element delivering fixed 8.2 V reference point independent of supply fluctuations. Use Value: Enables <1 % full-scale error in 12-bit measurement systems via low 60 Ω r_dif and 10 nA I_R, minimizing loading-induced drift.
ESD Protection Clamp	Overvoltage Detection Threshold
Use Scenario: Secondary-level ESD protection on USB data lines or I²C bus pins in handheld medical devices. IC Role / Device Role / Timing Role: Fast-acting voltage clamp absorbing HBM ±8 kV transients by entering breakdown before connected ICs reach failure thresholds. Use Value: Leverages 100 μs surge rating and 40 W peak power to divert ESD energy while maintaining <1 ns response latency due to low 150 pF capacitance.	Use Scenario: Setting trip threshold for brown-out detection circuitry in battery-powered edge nodes operating from Li-ion cells (3.0–4.2 V/cell). IC Role / Device Role / Timing Role: Zener-based comparator input reference that triggers reset when system voltage drops below safe operating level. Use Value: Achieves accurate 8.2 V threshold with ±5 % tolerance and +4.6 mV/K TC, enabling robust detection across −40 °C to +85 °C operating range.

Power Supply Voltage Clamp

Low-Power Analog Reference

Use Scenario: Clamping transient overvoltage on 5 V or 9 V supply rails in microcontroller-based control modules.

IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to shunt excess current and limit rail voltage excursion.

Use Value: Prevents latch-up or damage to downstream logic ICs by holding voltage within ±0.5 V of rated rail using its 7.76–8.64 V V_Z window and 40 W surge capability.

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

IC Role / Device Role / Timing Role: Precision voltage reference element delivering fixed 8.2 V reference point independent of supply fluctuations.

Use Value: Enables <1 % full-scale error in 12-bit measurement systems via low 60 Ω r_dif and 10 nA I_R, minimizing loading-induced drift.

ESD Protection Clamp

Overvoltage Detection Threshold

Use Scenario: Secondary-level ESD protection on USB data lines or I²C bus pins in handheld medical devices.

IC Role / Device Role / Timing Role: Fast-acting voltage clamp absorbing HBM ±8 kV transients by entering breakdown before connected ICs reach failure thresholds.

Use Value: Leverages 100 μs surge rating and 40 W peak power to divert ESD energy while maintaining <1 ns response latency due to low 150 pF capacitance.

Use Scenario: Setting trip threshold for brown-out detection circuitry in battery-powered edge nodes operating from Li-ion cells (3.0–4.2 V/cell).

IC Role / Device Role / Timing Role: Zener-based comparator input reference that triggers reset when system voltage drops below safe operating level.

Use Value: Achieves accurate 8.2 V threshold with ±5 % tolerance and +4.6 mV/K TC, enabling robust detection across −40 °C to +85 °C operating range.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX384-B8V2	Same 8.2 V nominal V_Z, ±5 % tolerance, but in SOD323 package (not SOD323F); R_th(j-a) = 450 K/W vs. 400 K/W	Higher thermal resistance limits power handling in compact layouts; identical electrical specs otherwise	Select BZX384-B8V2 only if legacy SOD323 footprint is required; PZU8.2B,115 offers better thermal performance in new designs
MMSZ4687	8.2 V V_Z, ±5 %, but higher r_dif (100 Ω max) and higher I_R (500 nA at 5 V); SOD123 package (larger than SOD323F)	Less precise regulation and higher leakage reduce suitability for low-power analog references	Choose MMSZ4687 only for cost-driven, non-critical clamping where size and leakage are secondary concerns

Compared with BZX384-B8V2 and MMSZ4687, the PZU8.2B,115 provides superior thermal resistance (400 K/W), lower leakage (10 nA), and tighter layout compatibility via SOD323F - making it optimal for space-constrained, low-power, and thermally sensitive Zener reference implementations.

Availability

PZU8.2B,115 is available at Aetrix Electronics and suitable for voltage regulation, analog reference, ESD protection, and overvoltage detection applications requiring stable component supply and long-term industrial availability.

Supply support for PZU8.2B,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

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The PZUxB series was developed to deliver high-precision, low-leakage Zener diodes in ultra-compact SMD packages for next-generation power management and signal conditioning in space-constrained electronics.

FAQ

What is the Zener voltage tolerance of PZU8.2B,115?

The PZU8.2B,115 has a nominal Zener voltage of 8.2 V with a tolerance of ±5 %, meaning its actual breakdown voltage falls between 7.76 V and 8.64 V when tested at I_Z = 5 mA. This B-grade tolerance is confirmed in Table 9 of the NXP datasheet and applies specifically to the PZU8.2B,115 variant within the PZUxB family.

Does PZU8.2B,115 support wave soldering?

No, PZU8.2B,115 is qualified for reflow soldering only, as explicitly stated in Section 10 of the NXP datasheet. Wave or hand soldering may exceed its thermal limits and cause permanent damage. The PZU8.2B,115 must be mounted using lead-free or SnPb reflow profiles compliant with JEDEC J-STD-020.

What is the maximum reverse leakage current for PZU8.2B,115?

The maximum reverse leakage current (I_R) for PZU8.2B,115 is 10 nA at V_R = 5 V and T_j = 25 °C, as specified in Table 9 of the NXP datasheet. This ultra-low leakage supports high-impedance bias networks and extends battery life in always-on applications.

How does the temperature coefficient affect PZU8.2B,115 performance?

The PZU8.2B,115 has a temperature coefficient of +4.6 mV/K at I_Z = 5 mA, meaning its Zener voltage increases by approximately 4.6 mV for every 1 °C rise in junction temperature. This positive coefficient is critical for thermal stability analysis in reference circuits operating across wide ambient ranges.

Is PZU8.2B,115 RoHS compliant?

Yes, PZU8.2B,115 is RoHS compliant and lead-free, consistent with NXP's environmental policy and the "lead-free" designation in the ordering information (SOD323F package, -115 tape-and-reel variant). Full compliance documentation is available in NXP's official product change notices and material declarations.

PZU8.2B,115 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: *

Package/Case:: -

Packaging:: Bulk

Product Status:: Active

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

Tolerance:: -

Power - Max:: -

Impedance (Max) (Zzt):: -

Current - Reverse Leakage @ Vr:: -

Voltage - Forward (Vf) (Max) @ If:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

PZU8.2B,115 FAQ

1.How can I place an order for PZU8.2B,115 through Aetrix?

Please submit a Request for Quotation (RFQ) for PZU8.2B,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 PZU8.2B,115 reliable?

The price and inventory of PZU8.2B,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU8.2B,115 is usually 5 days.

3.What payment methods are accepted for PZU8.2B,115?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU8.2B,115 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PZU8.2B,115?

PZU8.2B,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PZU8.2B,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 PZU8.2B,115?

For technical support, including PZU8.2B,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU8.2B,115 requirements.

6.How does Aetrix verify that PZU8.2B,115 is sourced from the original manufacturer or authorized distributors?

All PZU8.2B,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 PZU8.2B,115 meets industry standards.

7.What is the process for return or replacement of PZU8.2B,115?

All PZU8.2B,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU8.2B,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 PZU8.2B,115 part is unused and in its original packaging.

Return procedure for PZU8.2B,115:

1.Submit a request within 90 days.

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

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