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Nexperia USA Inc. PZU84-C8V2R
- Part No.:
- PZU84-C8V2R
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PZU84-C8V2R.pdf
- Description:
- DIODE ZENER 8.2V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,146
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Product details
Overview
PZU84-C8V2R from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT23 package, designed for precision voltage reference and overvoltage protection in low-power analog circuits. It delivers 8.2 V nominal regulation at 5 mA, with 60 Ω differential resistance, 5 μA max reverse leakage at VR = 5 V, and operates across −55 °C to +150 °C ambient.
For engineers reviewing the PZU84-C8V2R datasheet, PZU84-C8V2R pinout, PZU84-C8V2R application, or PZU84-C8V2R equivalent, this page provides verified electrical behavior, thermal limits, SOT23 terminal mapping, and validated alternatives for voltage reference design, ESD clamp staging, and power rail stabilization in space-constrained PCBs.
Technical Context
This Zener diode operates in reverse breakdown mode with hard knee characteristics optimized for stable reference generation at low currents (IZ = 0.5 mA to 5 mA). Its 60 Ω typical dynamic impedance at IZ = 5 mA ensures minimal output voltage variation under load shifts.
The device exhibits a +3.2 mV/K temperature coefficient at IZ = 5 mA, enabling predictable drift compensation in temperature-sensitive references. Its 150 pF capacitance at VR = 0 V supports high-frequency noise suppression without destabilizing 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 5 V–12 V rail clamping or biasing |
| Tolerance | ±2 % - enables tight reference accuracy without post-calibration in production |
| Differential Resistance | 60 Ω max at IZ = 5 mA - ensures <0.3 V output shift for ±1 mA current variation |
| Reverse Leakage Current | 0.5 μA max at VR = 5 V - minimizes quiescent power loss in battery-powered systems |
| Power Dissipation | 250 mW at Tamb = 25 °C - supports continuous operation on standard FR4 PCB with 70 μm copper |
| Junction Temperature Limit | 150 °C - allows reliable use in industrial environments with localized heating |
| Thermal Resistance (j-a) | 500 K/W - informs derating curves for ambient temperatures above 25 °C |
Pinout & Package
Package: SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch), optimized for automated placement and reflow soldering per IPC-7351B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Connected to lower-potential node; reverse-biased during regulation |
| 2 | Not Connected (n.c.) | Internally unconnected; must remain floating-no PCB trace or via |
| 3 | Cathode (K) | Connected to regulated voltage node; carries full Zener current during operation |
Key Features
| Feature | Design Value |
|---|---|
| Hard breakdown knee | Enables sharp, repeatable turn-on at 8.2 V without soft saturation-critical for accurate threshold detection |
| Low dynamic impedance | 60 Ω at 5 mA ensures <1% output deviation across ±10% load current swings |
| Low leakage current | 0.5 μA max at 5 V reverse bias preserves battery life in always-on sensor nodes |
| Wide operating temperature | −55 °C to +150 °C ambient range supports deployment in automotive engine bays and industrial controls |
| SOT23 footprint compatibility | Standardized 1.9 mm pitch allows drop-in replacement of legacy Zeners without layout redesign |
Applications
| Power Rail Clamping | Reference Voltage Source |
|---|---|
|
Use Scenario: Protecting microcontroller I/O pins from transient overvoltage events on 5 V or 3.3 V buses. IC Role / Device Role / Timing Role: Shunt clamp absorbing surge energy while holding line voltage ≤8.2 V. Use Value: Limits peak stress to <100 ns duration with 40 W non-repetitive pulse capability, preventing latch-up or gate oxide damage. |
Use Scenario: Generating a stable 8.2 V reference for ADC biasing or comparator hysteresis in data acquisition modules. IC Role / Device Role / Timing Role: Precision voltage source with ±2 % initial tolerance and +3.2 mV/K TC for calibrated offset correction. Use Value: Delivers <0.5 % total error over 0–70 °C when paired with 1 % resistor divider, eliminating need for trimming. |
| ESD Protection Staging | Low-Power Bias Network |
|
Use Scenario: First-stage clamping ahead of TVS diodes in USB or CAN transceiver protection schemes. IC Role / Device Role / Timing Role: Fast-reacting Zener limiting pre-surge voltage before secondary protection triggers. Use Value: 150 pF junction capacitance avoids signal integrity degradation on 12 Mbps CAN FD lines. |
Use Scenario: Providing bias current to op-amp input stages or photodiode amplifiers in portable medical sensors. IC Role / Device Role / Timing Role: Low-leakage (0.5 μA) voltage reference enabling nanoamp-level input bias control. Use Value: Enables sub-10 nA input offset stability in instrumentation amplifiers without active regulation overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C8V2 | ±5 % tolerance, 80 Ω rdif at 5 mA, 1 μA IR at VR = 5 V | Higher regulation uncertainty and drift; suitable only for non-critical biasing | Select when cost sensitivity outweighs reference accuracy requirements |
| MMSZ5236B | ±5 % tolerance, 30 Ω rdif at 20 mA, 100 nA IR at VR = 1 V | Lower impedance but requires higher test current; inferior low-current stability | Prefer for high-current shunt regulation where 20 mA operating point is acceptable |
Compared with PZU84-C8V2R, BZX84-C8V2 trades 3× higher leakage and looser tolerance for broader distributor availability, while MMSZ5236B offers lower impedance only at elevated current-making PZU84-C8V2R optimal for low-power, high-accuracy 5–10 mA reference designs.
Availability
PZU84-C8V2R is available at Aetrix Electronics and suitable for power rail clamping, precision reference generation, ESD staging, and low-power bias networks requiring stable component supply across industrial, medical, and communications equipment lifecycles.
Supply support for PZU84-C8V2R 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 focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and energy-efficient solutions.
The PZU84 series belongs to Nexperia's general-purpose Zener regulator portfolio, engineered specifically for stable voltage reference and overvoltage protection in compact, thermally constrained SMT designs.
FAQ
What is the maximum reverse voltage that PZU84-C8V2R can withstand continuously?
The absolute maximum reverse voltage is not specified as a standalone parameter; instead, the device is rated for continuous operation up to its nominal Zener voltage of 8.2 V at defined test current. Sustained reverse bias beyond 8.2 V will cause conduction and power dissipation limited by Ptot = 250 mW at 25 °C ambient. Exceeding thermal limits risks permanent degradation.
Can PZU84-C8V2R be used in series with another Zener for higher voltage reference?
Yes, but with caution: series connection increases total dynamic impedance and temperature coefficient nonlinearity. For example, two PZU84-C8V2R diodes yield ~16.4 V nominal, but combined rdif ≈ 120 Ω and TC ≈ +6.4 mV/K. Matching unit-to-unit VZ tolerance (±2 %) is critical-unmatched units may cause uneven voltage division and thermal runaway.
Is Pin 2 truly unconnected, or does it serve a thermal function?
Pin 2 is electrically unconnected (n.c.) per Nexperia's official pinning diagram and internal construction. It serves no electrical or thermal role-no internal bond wire or die attachment exists. PCB layout must leave it floating; connecting it risks shorting adjacent traces or violating creepage requirements in high-voltage designs.
How does the 500 K/W junction-to-ambient thermal resistance impact real-world power handling?
At 25 °C ambient, 250 mW dissipation yields ΔT = 125 K, reaching Tj = 150 °C-the absolute maximum. At 70 °C ambient, safe continuous power drops to 160 mW (ΔT = 80 K). Derating curves in the datasheet confirm linear reduction to zero at 150 °C ambient, making forced-air cooling unnecessary below 100 mW in typical board conditions.
PZU84-C8V2R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- PZU84
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 8.2 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 5 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PZU84-C8V2R FAQ
1.How can I place an order for PZU84-C8V2R through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU84-C8V2R 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 PZU84-C8V2R reliable?
The price and inventory of PZU84-C8V2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU84-C8V2R is usually 5 days.
3.What payment methods are accepted for PZU84-C8V2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU84-C8V2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU84-C8V2R?
PZU84-C8V2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU84-C8V2R 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 PZU84-C8V2R?
For technical support, including PZU84-C8V2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU84-C8V2R requirements.
6.How does Aetrix verify that PZU84-C8V2R is sourced from the original manufacturer or authorized distributors?
All PZU84-C8V2R 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 PZU84-C8V2R meets industry standards.
7.What is the process for return or replacement of PZU84-C8V2R?
All PZU84-C8V2R units undergo pre-shipment inspection (PSI). If there is an issue with PZU84-C8V2R, 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 PZU84-C8V2R part is unused and in its original packaging.
Return procedure for PZU84-C8V2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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