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Nexperia USA Inc. PZU8.2B3A,115
- Part No.:
- PZU8.2B3A,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PZU8.2B3A,115.pdf
- Description:
- DIODE ZENER 8.2V 320MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:6,099
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Product details
Overview
PZU8.2B3A,115 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 8.2 V nominal working voltage at 5 mA, with 60 Ω maximum differential resistance and 10 nA reverse current at 0.5 mA, used for precision voltage reference and overvoltage protection in low-power analog circuits.
For engineers reviewing the PZU8.2B3A,115 datasheet, PZU8.2B3A,115 pinout, PZU8.2B3A,115 application, or PZU8.2B3A,115 equivalent, this device supports stable regulation in space-constrained designs where tight voltage tolerance, low leakage, and fast transient response are required.
Technical Context
This Zener diode operates in reverse breakdown mode with a hard knee characteristic, optimized for low-current regulation (IZ = 5 mA) and exhibits intentional minor leakage rise to improve switching speed and reduce noise per AN90031. Its temperature coefficient is +4.6 mV/K at 5 mA, enabling predictable drift compensation in bias networks.
The device delivers 320 mW total power dissipation on FR4 PCB with single-sided copper, and withstands non-repetitive 40 W surges (tp = 100 µs), making it suitable for transient-suppressed reference paths in sensor signal conditioning and power supply feedback loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 8.2 V at IZ = 5 mA - defines precise regulation point for feedback or reference circuits |
| Tolerance | ±2 % (B3 series) - ensures tight voltage accuracy without post-calibration |
| Differential Resistance | ≤60 Ω at IZ = 5 mA - maintains stable output under small load variations |
| Reverse Current | ≤10 nA at VR = 0.5 mA - minimizes quiescent power loss in battery-powered systems |
| Non-repetitive Peak Power | 40 W (tp = 100 µs) - handles ESD and surge events without degradation |
| Total Power Dissipation | 320 mW at Tamb ≤ 25 °C - sets thermal derating baseline for PCB layout |
| Junction Temperature | −55 °C to +150 °C - supports industrial ambient operation without thermal shutdown |
Pinout & Package
Package: SOD323 (SC-76), surface-mount plastic case measuring 1.7 mm × 1.25 mm × 0.95 mm with 1.3 mm lead pitch and cathode-marked top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; marking bar identifies this terminal |
| 2 | Anode | Connected to ground or lower-potential rail; completes reverse-bias path |
Key Features
| Feature | Design Value |
|---|---|
| Low dynamic impedance | 60 Ω at 5 mA enables stable regulation even with microampere-level load shifts |
| Hard breakdown knee | Sharp transition into conduction improves reference stability during startup and transients |
| Optimized leakage profile | Intentional minor IR rise reduces switching noise and accelerates response in feedback paths |
| Small-footprint SMD package | SOD323 allows placement near IC pins to minimize parasitic inductance in sensitive analog nodes |
Applications
| Power Supply Feedback Reference | Sensor Bias Voltage Generator |
|---|---|
Use Scenario: Provides stable 8.2 V reference for optocoupler-based isolated feedback in AC/DC adapters. IC Role / Device Role / Timing Role: Zener diode acting as precision shunt reference in TL431-assisted secondary-side regulation loop. Use Value: ±2 % tolerance and 60 Ω rdif ensure <±10 mV output deviation across line/load changes. |
Use Scenario: Supplies bias voltage to MEMS pressure sensor bridge in portable medical monitors. IC Role / Device Role / Timing Role: Low-leakage shunt regulator establishing clean 8.2 V excitation for ratiometric measurement. Use Value: 10 nA IR at 0.5 mA prevents sensor offset drift and extends battery life beyond 5 years. |
| Overvoltage Clamp for MCU I/O | ADC Reference Stabilizer |
Use Scenario: Clamps 3.3 V GPIO lines against ESD and inductive spikes in industrial PLC modules. IC Role / Device Role / Timing Role: Fast-response Zener absorbing transients before they reach microcontroller input protection diodes. Use Value: 40 W non-repetitive surge rating protects against IEC 61000-4-2 Level 4 (15 kV air) events. |
Use Scenario: Stabilizes reference input of 16-bit SAR ADC in precision data acquisition systems. IC Role / Device Role / Timing Role: Low-noise shunt reference reducing code spread caused by supply ripple. Use Value: Optimized leakage profile suppresses switching noise coupling into reference node, improving SNR by 3 dB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C8V2 | ±5 % tolerance, 80 Ω rdif, 100 nA IR at 1 V - looser accuracy, higher leakage | Acceptable for non-critical biasing but unsuitable for precision feedback | Select when cost sensitivity outweighs regulation stability requirements |
| MMSZ5235B | ±5 % tolerance, 30 Ω rdif, 100 nA IR at 1 V - lower impedance but higher leakage | Better dynamic response but degrades low-power standby performance | Prefer only where fast regulation recovery dominates over quiescent current budget |
Compared with BZX84-C8V2 and MMSZ5235B, PZU8.2B3A,115 uniquely combines ±2 % tolerance, sub-10 nA leakage, and noise-optimized switching behavior-making it the only choice for high-resolution analog systems requiring simultaneous accuracy, efficiency, and signal integrity.
Availability
PZU8.2B3A,115 is available at Aetrix Electronics and suitable for power supply feedback references, sensor bias networks, overvoltage clamping, and ADC reference stabilization requiring stable component supply across industrial, medical, and test equipment programs.
Supply support for PZU8.2B3A,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 semiconductor expert delivering high-performance logic, discrete, and MOSFET solutions with focus on reliability, efficiency, and miniaturization for automotive, industrial, and consumer markets.
This device belongs to the PZUxBA series of general-purpose Zener regulators designed specifically for surface-mounted precision voltage reference and protection in space-constrained, low-power analog subsystems.
FAQ
What is the maximum continuous reverse current for PZU8.2B3A,115 at 25 °C?
The device has no specified maximum continuous reverse current; instead, its safe operating area is defined by total power dissipation (320 mW at Tamb ≤ 25 °C) and junction temperature limit (150 °C). At 8.2 V, this corresponds to ~39 mA average Zener current under ideal thermal conditions, but actual design must account for PCB thermal resistance and ambient rise.
Does PZU8.2B3A,115 meet automotive AEC-Q200 requirements?
No. This part is not automotive-qualified and lacks AEC-Q200 stress testing documentation. Nexperia explicitly states in its legal disclaimers that non-automotive qualified products like PZU8.2B3A,115 are unsuitable for safety-critical or automotive applications unless separately validated by the customer.
How does the B3 tolerance series differ from B1/B2 in the PZUxBA family?
All B1, B2, and B3 denote ±2 % tolerance, but B3 specifically applies to devices with nominal voltages from 7.5 V to 51 V-including PZU8.2B3A,115. The marking code CT confirms this unit is B3-grade, verified in Table 4 of the datasheet under "PZU8.2*A" row.
Can PZU8.2B3A,115 be used in parallel for higher power handling?
No. Zener diodes exhibit negative temperature coefficients below ~5 V and positive above, causing current hogging and thermal runaway when paralleled. The datasheet provides no derating guidance or characterization for parallel operation, and thermal resistance values assume single-device mounting.
PZU8.2B3A,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 8.2 V
- Tolerance:
- ±2%
- Power - Max:
- 320 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 5 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
PZU8.2B3A,115 FAQ
1.How can I place an order for PZU8.2B3A,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU8.2B3A,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 PZU8.2B3A,115 reliable?
The price and inventory of PZU8.2B3A,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU8.2B3A,115 is usually 5 days.
3.What payment methods are accepted for PZU8.2B3A,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU8.2B3A,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU8.2B3A,115?
PZU8.2B3A,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU8.2B3A,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 PZU8.2B3A,115?
For technical support, including PZU8.2B3A,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU8.2B3A,115 requirements.
6.How does Aetrix verify that PZU8.2B3A,115 is sourced from the original manufacturer or authorized distributors?
All PZU8.2B3A,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 PZU8.2B3A,115 meets industry standards.
7.What is the process for return or replacement of PZU8.2B3A,115?
All PZU8.2B3A,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU8.2B3A,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 PZU8.2B3A,115 part is unused and in its original packaging.
Return procedure for PZU8.2B3A,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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