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Nexperia USA Inc. PZU84-C11R
- Part No.:
- PZU84-C11R
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PZU84-C11R.pdf
- Description:
- DIODE ZENER 11V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,889
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Product details
Overview
PZU84-C11R from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT23 package, rated for 11 V nominal breakdown voltage at 5 mA, with differential resistance of 60 Ω, temperature coefficient of +5.4 mV/K, and reverse leakage current ≤0.1 μA at 8 V, used for precision voltage reference and overvoltage clamping in low-power analog circuits.
For engineers reviewing the PZU84-C11R datasheet, PZU84-C11R pinout, PZU84-C11R application, or PZU84-C11R equivalent, this page delivers verified Zener parameters including VZ, rdif, IR, thermal resistance, and SOT23 terminal mapping - critical for ESD protection design, rail stabilization, and feedback loop referencing.
Technical Context
This Zener operates in reverse-bias breakdown mode with hard knee characteristics optimized for stable regulation at low currents (IZ = 0.5–5 mA), delivering tight ±2 % tolerance and low dynamic impedance (60 Ω typ. at 5 mA). Its positive temperature coefficient (+5.4 mV/K) enables predictable drift compensation in temperature-sensitive references.
The device uses silicon planar technology in a three-terminal SOT23 package with Pin 1 = anode, Pin 2 = not connected, Pin 3 = cathode - enabling unidirectional clamping without parasitic conduction paths. Thermal resistance from junction to solder point is 330 K/W, supporting reliable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ (nominal) | 11 V at IZ = 5 mA - defines precise clamping threshold for 12 V rail protection or reference generation |
| Tolerance | ±2 % - ensures voltage accuracy within ±0.22 V for high-stability feedback networks |
| rdif | 60 Ω max at IZ = 5 mA - limits output impedance variation under load changes in shunt regulator topologies |
| IR | ≤0.1 μA at VR = 8 V - guarantees minimal quiescent current draw in battery-powered sensing nodes |
| Ptot | 250 mW at Tamb = 25 °C - supports continuous regulation in compact PCB layouts with standard FR4 copper |
| Rth(j-sp) | 330 K/W - enables thermal-aware layout with cathode tab as primary heat path to PCB copper pour |
| Cd | 108 pF at f = 1 MHz, VR = 0 V - determines high-frequency noise filtering capability in signal line clamping |
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 reflow assembly on FR4 PCBs with single-sided 70 μm tin-plated copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward-biased terminal; connects to lower-potential node in reverse-bias regulation configuration |
| 2 | Not Connected (n.c.) | Internally isolated; must remain unconnected in PCB layout to avoid parasitic coupling or mechanical stress |
| 3 | Cathode (K) | Reverse-bias terminal tied to regulated voltage rail; serves as primary thermal path to PCB solder point |
Key Features
| Feature | Design Value |
|---|---|
| Hard breakdown knee | Enables sharp, repeatable turn-on at 11 V without soft saturation - critical for clean overvoltage detection |
| Low leakage current | ≤0.1 μA at 8 V allows use in microamp-level sensor biasing and ultra-low-power wake-up circuits |
| Optimized thermal path | Rth(j-sp) = 330 K/W permits direct heat transfer from junction to cathode solder joint - improves long-term reliability |
| Stable temperature coefficient | +5.4 mV/K at 11 V enables predictable drift tracking for compensated reference designs across −55 °C to +150 °C |
| E24 voltage coverage | Part of 34-value series spanning 2.4 V–51 V - simplifies BOM consolidation for multi-rail systems |
Applications
| Power Supply Rail Clamping | ADC Reference Stabilization |
|---|---|
Use Scenario: Protecting 12 V logic rails from transient surges in industrial PLC I/O modules. IC Role / Device Role / Timing Role: Shunt regulator clamping excess voltage above 11 V to prevent damage to downstream LDOs and microcontrollers. Use Value: 60 Ω differential resistance ensures <100 mV droop during 10 mA surge events, maintaining system uptime. |
Use Scenario: Providing stable 11 V reference for 16-bit SAR ADC in precision data acquisition systems. IC Role / Device Role / Timing Role: Low-noise Zener source replacing higher-drift bandgap references where moderate accuracy suffices. Use Value: ±2 % tolerance and +5.4 mV/K TC allow calibration compensation to achieve <0.1 % total error over 0–70 °C. |
| Sensor Bias Voltage Generation | ESD Protection Interface |
Use Scenario: Biasing bridge-based pressure sensors in automotive cabin air quality monitors. IC Role / Device Role / Timing Role: Low-leakage (≤0.1 μA) voltage source powering Wheatstone bridge arms without loading error. Use Value: Enables sub-μA sleep-mode operation while maintaining 11 V bias stability across temperature extremes. |
Use Scenario: Secondary clamping stage on RS-485 transceiver data lines exposed to IEC 61000-4-2 contact discharge. IC Role / Device Role / Timing Role: Fast-response Zener absorbing residual energy after TVS primary strike. Use Value: 40 W non-repetitive peak power rating handles 100 μs surges without degradation, extending interface lifetime. |
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-C11 | ±5 % tolerance, 100 Ω rdif at 5 mA, 120 pF capacitance | Higher regulation uncertainty and impedance - suitable only for non-critical clamping | Select when cost sensitivity outweighs voltage accuracy and noise performance requirements |
| MMSZ5240B | ±5 % tolerance, 200 Ω rdif, 150 pF, 500 mW Ptot | Higher power rating but looser tolerance and higher leakage (≤1 μA at 8 V) | Prefer for higher-surge environments where thermal margin > voltage precision |
Compared with BZX84-C11 and MMSZ5240B, PZU84-C11R offers superior voltage accuracy (±2 % vs. ±5 %), lower dynamic impedance (60 Ω vs. ≥100 Ω), and 10× lower leakage - making it optimal for precision analog references and low-power sensor interfaces where regulation stability directly impacts measurement fidelity.
Availability
PZU84-C11R is available at Aetrix Electronics and suitable for industrial sensor conditioning, RS-485 interface protection, and precision ADC reference circuits requiring stable component supply with full traceability and lifecycle continuity.
Supply support for PZU84-C11R 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-performance, high-reliability discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
The PZU84 series belongs to Nexperia's general-purpose Zener regulator product line, engineered specifically for stable voltage reference and low-current clamping in space-constrained SMT applications demanding tight tolerance and low leakage.
FAQ
What is the maximum reverse voltage before breakdown for PZU84-C11R?
The nominal Zener voltage is 11 V at 5 mA test current, with guaranteed range of 10.44 V to 11.56 V per ±2 % tolerance. Breakdown begins gradually below this range, but stable regulation occurs only above 10.44 V under specified test conditions - do not operate continuously below this value for regulation purposes.
Can PZU84-C11R be used in forward-bias mode like a standard diode?
Yes - its forward voltage is ≤0.9 V at 10 mA, matching typical silicon diode behavior. However, the device is optimized for reverse-bias Zener operation; forward conduction is not characterized for switching speed or recovery time, so it should not replace dedicated rectifier or signal diodes in dynamic applications.
How does the not-connected pin (Pin 2) affect PCB layout?
Pin 2 is internally unconnected and must remain unattached on the PCB. Routing traces or placing solder paste on this pad risks mechanical stress-induced die cracking or contamination during reflow. The official Nexperia footprint (Fig. 10) excludes copper for Pin 2 - follow that layout strictly to ensure yield and reliability.
Is PZU84-C11R qualified for automotive applications?
No - this device is not AEC-Q200 qualified and lacks automotive-grade screening, temperature validation, or failure rate reporting. Nexperia explicitly states non-automotive qualification in the legal disclaimers; use only in industrial, consumer, or commercial equipment where automotive safety integrity is not required.
PZU84-C11R 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):
- 11 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 100 mV
- 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-C11R FAQ
1.How can I place an order for PZU84-C11R through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU84-C11R 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-C11R reliable?
The price and inventory of PZU84-C11R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU84-C11R is usually 5 days.
3.What payment methods are accepted for PZU84-C11R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU84-C11R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU84-C11R?
PZU84-C11R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU84-C11R 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-C11R?
For technical support, including PZU84-C11R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU84-C11R requirements.
6.How does Aetrix verify that PZU84-C11R is sourced from the original manufacturer or authorized distributors?
All PZU84-C11R 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-C11R meets industry standards.
7.What is the process for return or replacement of PZU84-C11R?
All PZU84-C11R units undergo pre-shipment inspection (PSI). If there is an issue with PZU84-C11R, 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-C11R part is unused and in its original packaging.
Return procedure for PZU84-C11R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU84-C11R Tags
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