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Nexperia USA Inc. PDZ8.2BZ
- Part No.:
- PDZ8.2BZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PDZ8.2BZ.pdf
- Description:
- DIODE ZENER 8.2V 400MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:29,482
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Product details
Overview
PDZ8.2BZ from Nexperia is a single silicon Zener diode designed for low-power voltage regulation in surface-mounted applications, with a nominal Zener voltage of 8.2 V at 5 mA, ±2 % tolerance, 60 Ω maximum differential resistance at 5 mA, 0.5 μA maximum reverse current at 6.6 V, and 400 mW total power dissipation on FR4 PCB. It operates in general-purpose regulator circuits requiring stable reference voltages in space-constrained consumer and industrial power supplies.
For engineers reviewing the PDZ8.2BZ datasheet, PDZ8.2BZ pinout, PDZ8.2BZ application, or PDZ8.2BZ equivalent, this device is selected for precision low-current voltage clamping, biasing, and overvoltage protection where SOD323 footprint, hard breakdown knee, and low leakage (<0.5 μA) are critical design requirements.
Technical Context
This Zener diode functions as a two-terminal voltage reference by operating in reverse breakdown mode, maintaining a stable 8.02–8.36 V working voltage across its cathode–anode terminals when reverse-biased at IZ = 5 mA. Its hard breakdown knee ensures predictable turn-on behavior with minimal voltage hysteresis under transient load conditions.
Thermal performance is defined by Rth(j-sp) = 130 K/W (junction-to-solder point) and Rth(j-a) = 340 K/W (junction-to-ambient), enabling reliable operation up to +150 °C junction temperature. The device exhibits a positive temperature coefficient of +4.6 mV/K at IZ = 5 mA, supporting stable regulation across moderate ambient temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.02–8.36 V at IZ = 5 mA - defines precise clamping threshold for 8.2 V nominal regulation |
| Differential Resistance (rdif) | ≤60 Ω at IZ = 5 mA - ensures minimal output voltage shift under small load current variations |
| Reverse Current (IR) | ≤0.5 μA at VR = 6.6 V - guarantees low standby power loss in high-impedance bias networks |
| Power Dissipation (Ptot) | 400 mW at Tamb ≤ 25 °C on FR4 PCB - sets maximum continuous DC or pulsed power handling capability |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - enables use as low-drop rectifier or polarity protection diode if forward-biased |
| Temperature Coefficient (SZ) | +4.6 mV/K at IZ = 5 mA - quantifies voltage drift per degree Celsius for thermal stability analysis |
| Junction Temperature (Tj) | −65 to +150 °C - specifies operational and storage limits for reliability-critical embedded environments |
Pinout & Package
PDZ8.2BZ is housed in a SOD323 (SC-76) plastic surface-mount package measuring 1.8 × 1.35 × 0.95 mm, with a cathode-marking bar on the top surface. The package supports reflow and wave soldering using standardized footprints per Nexperia's recommended land patterns.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Marked side) | Cathode (K) | Connected to regulated output node; reverse-bias terminal where Zener breakdown occurs |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hard breakdown knee | Enables sharp, repeatable turn-on without soft saturation-critical for accurate voltage clamping in feedback loops |
| Low dynamic impedance | 60 Ω max at 5 mA ensures <10 mV output variation for ±1 mA load current changes in reference circuits |
| Very low leakage current | 0.5 μA max at 6.6 V minimizes error in high-resistance divider networks and battery-powered bias rails |
| SOD323 footprint compatibility | Standardized 1.8 × 1.35 mm outline allows automated placement and reflow without custom stencil adaptation |
| ±2 % voltage tolerance | Reduces need for post-assembly trimming in cost-sensitive consumer power management designs |
Applications
| USB Port Overvoltage Protection | Microcontroller Reset Circuit |
|---|---|
|
Use Scenario: Clamps input voltage to 8.2 V during ESD or surge events on 5 V USB lines interfacing with legacy peripherals. IC Role / Device Role / Timing Role: Standalone bidirectional voltage clamp placed between VBUS and ground, absorbing transients before they reach downstream LDOs or USB PHYs. Use Value: Prevents latch-up in 5 V logic interfaces by limiting excursion to 8.2 V with <0.5 μA leakage-no impact on quiescent current budget. |
Use Scenario: Generates a clean, temperature-stable reset threshold for 3.3 V microcontrollers requiring brown-out detection above 2.7 V. IC Role / Device Role / Timing Role: Zener-based reference in RC reset generator, setting precise trip point for reset assertion during supply ramp-up. Use Value: Delivers ±2 % accuracy and +4.6 mV/K TC to maintain reset window integrity across −40 to +85 °C industrial operating range. |
| Industrial Sensor Bias Network | LED Current Regulation Reference |
|
Use Scenario: Provides stable 8.2 V reference for op-amp-based signal conditioning of 4–20 mA loop-powered sensors in factory automation systems. IC Role / Device Role / Timing Role: Two-terminal shunt regulator supplying fixed bias to instrumentation amplifier inputs and ADC reference dividers. Use Value: Maintains <10 mV regulation error over 1–10 mA load variation due to 60 Ω rdif, ensuring sensor linearity within 0.1 % FS. |
Use Scenario: Sets reference voltage for constant-current LED driver ICs in architectural lighting modules where color consistency depends on stable forward current. IC Role / Device Role / Timing Role: Precision voltage source feeding the sense resistor network of an LM3405-type buck controller. Use Value: Enables ±2 % current accuracy across production batches without calibration, leveraging tight VZ tolerance and low tempco. |
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 | Same 8.2 V nominal, but ±5 % tolerance and higher rdif (90 Ω); SOT23 package (larger footprint) | Acceptable where tighter voltage accuracy is not required and board space permits SOT23 | Select when cost priority outweighs regulation precision and miniaturization needs |
| MMSZ4687 | 8.2 V nominal, ±5 % tolerance, 100 Ω rdif, 500 mW Ptot; SOD123 package (0.1 mm taller) | Higher power rating suits higher-current shunt applications but lacks PDZ8.2BZ's low-leakage performance | Prefer when >400 mW dissipation is needed and leakage >1 μA is acceptable |
Compared with BZX84-C8V2 and MMSZ4687, PDZ8.2BZ offers superior voltage accuracy (±2 % vs. ±5 %), lower dynamic impedance (60 Ω vs. ≥90 Ω), and significantly lower leakage (0.5 μA vs. ≥1 μA), making it optimal for precision low-power regulation where SOD323 size is mandatory.
Availability
PDZ8.2BZ is available at Aetrix Electronics and suitable for USB protection circuits, microcontroller reset generators, industrial sensor bias networks, and LED current reference designs requiring stable component supply with consistent parametric performance across production lots.
Supply support for PDZ8.2BZ 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, reliable discrete, logic, and MOSFET devices optimized for efficiency, miniaturization, and robustness in mass-market electronics.
PDZ8.2BZ belongs to the PDZ-B series of low-power Zener diodes engineered for general-purpose voltage regulation in space-constrained, cost-sensitive consumer and industrial applications where SOD323 footprint and tight voltage tolerance are essential.
FAQ
What is the maximum reverse current specification for PDZ8.2BZ at its rated Zener voltage?
The maximum reverse current (IR) for PDZ8.2BZ is 0.5 μA at VR = 6.6 V, measured at Tj = 25 °C. This value reflects the device's low-leakage performance, critical for high-impedance bias networks and battery-operated systems where standby current must be minimized.
Can PDZ8.2BZ be used in forward conduction mode, and what is its typical forward voltage?
Yes, PDZ8.2BZ can operate in forward conduction mode with a maximum forward voltage of 0.9 V at IF = 10 mA and 1.1 V at IF = 100 mA. This characteristic supports dual-use applications such as polarity protection or low-drop rectification alongside its primary Zener regulation function.
How does the temperature coefficient of PDZ8.2BZ affect its regulation accuracy over temperature?
PDZ8.2BZ has a temperature coefficient of +4.6 mV/K at IZ = 5 mA, meaning its Zener voltage increases by approximately 4.6 mV per degree Celsius rise in junction temperature. This positive TC enables predictable, linear drift-allowing compensation in precision references where thermal gradients are known and controlled.
Is PDZ8.2BZ suitable for automotive applications, and what qualification status does it hold?
No, PDZ8.2BZ is not automotive-qualified. Nexperia explicitly states that unless otherwise indicated in the datasheet, PDZ-B series devices are non-automotive qualified and are neither tested nor warranted for use in safety-critical, life-support, or automotive systems per AEC-Q101 or ISO/TS 16949 requirements.
PDZ8.2BZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- PDZ-B
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 8.2 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 5 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
PDZ8.2BZ FAQ
1.How can I place an order for PDZ8.2BZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ8.2BZ 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 PDZ8.2BZ reliable?
The price and inventory of PDZ8.2BZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ8.2BZ is usually 5 days.
3.What payment methods are accepted for PDZ8.2BZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ8.2BZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ8.2BZ?
PDZ8.2BZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ8.2BZ 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 PDZ8.2BZ?
For technical support, including PDZ8.2BZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ8.2BZ requirements.
6.How does Aetrix verify that PDZ8.2BZ is sourced from the original manufacturer or authorized distributors?
All PDZ8.2BZ 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 PDZ8.2BZ meets industry standards.
7.What is the process for return or replacement of PDZ8.2BZ?
All PDZ8.2BZ units undergo pre-shipment inspection (PSI). If there is an issue with PDZ8.2BZ, 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 PDZ8.2BZ part is unused and in its original packaging.
Return procedure for PDZ8.2BZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDZ8.2BZ Tags
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