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Nexperia USA Inc. PZU11B2A,115
- Part No.:
- PZU11B2A,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PZU11B2A,115.pdf
- Description:
- DIODE ZENER 11V 320MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:993
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Product details
Overview
PZU11B2A,115 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 11 V nominal working voltage, 320 mW total power dissipation, and 8 A non-repetitive peak reverse current at 100 µs pulse width. It delivers hard breakdown knee, low dynamic impedance at low currents, and intentional minor leakage optimization for fast switching and noise reduction in precision reference circuits.
For engineers reviewing the PZU11B2A,115 datasheet, PZU11B2A,115 pinout, PZU11B2A,115 application, or PZU11B2A,115 equivalent, this device is selected for stable 11 V regulation in space-constrained SMT designs requiring tight voltage tolerance, low thermal resistance (255 K/W junction-to-solder point), and predictable temperature coefficient (±3.4 mV/K at IZ = 5 mA).
Technical Context
This Zener diode operates in reverse-bias breakdown mode to maintain a stable 11 V reference across varying load and line conditions. Its differential resistance is ≤60 Ω at IZ = 5 mA, and it exhibits a typical temperature coefficient of +3.4 mV/K - enabling predictable drift compensation in analog sensing and feedback loops.
Designed for surface-mount use on FR4 PCBs with standard tin-plated copper, it supports both reflow and wave soldering per JEDEC standards. The cathode-marked SOD323 package ensures unambiguous polarity orientation during automated placement and inspection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 11 V - precise regulation point at IZ = 5 mA, ±2 % tolerance (B2 series) |
| Total Power Dissipation | 320 mW - maximum continuous DC power at Tamb ≤ 25 °C on standard FR4 PCB |
| Non-repetitive Peak Reverse Current | 8 A - surge capability at 100 µs square wave, Tj = 25 °C prior to surge |
| Differential Resistance | ≤60 Ω - low impedance at IZ = 5 mA ensures minimal output voltage variation under load changes |
| Reverse Current (IR) | ≤10 nA at VR = 8.25 V - ultra-low leakage preserves accuracy in high-impedance bias networks |
| Thermal Resistance (j–sp) | 255 K/W - enables reliable thermal coupling to PCB copper for sustained operation near rating limits |
| Forward Voltage | 1.1 V at IF = 100 mA - defines conduction threshold in series protection or clamping configurations |
Pinout & Package
SOD323 (SC-76) plastic surface-mount package: 1.7 mm × 1.25 mm × 0.95 mm body, 1.3 mm lead pitch, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; marking bar identifies this terminal for correct PCB layout and assembly orientation |
| 2 | Anode | Connected to ground or lower-potential rail; forms reverse-biased junction for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance (B2 series) | Enables tighter regulation than ±5 % variants, reducing need for post-calibration in voltage reference chains |
| Intentional minor leakage current rise | Optimizes switching speed and reduces broadband noise in active filter and comparator reference paths [Ref. AN90031] |
| Hard breakdown knee | Ensures sharp, predictable turn-on behavior critical for overvoltage clamp response time and repeatability |
| Low dynamic impedance (≤60 Ω @ 5 mA) | Maintains stable 11 V output under dynamic load transients common in sensor signal conditioning stages |
| SOD323 footprint compatibility | Supports high-density PCB layouts and automated optical inspection (AOI) via standardized 1.3 mm pitch and visible cathode mark |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
|
Use Scenario: Providing stable 11 V reference for ADC voltage dividers and op-amp bias networks in industrial PLC analog input modules. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference potential independent of supply ripple or load variation. Use Value: ±2 % tolerance and ≤60 Ω dynamic impedance ensure <±0.5 % reference error across temperature and aging, meeting IEC 61000-4-5 surge immunity requirements. |
Use Scenario: Protecting microcontroller GPIO pins from transient overvoltage events exceeding 12 V in automotive body control units. IC Role / Device Role / Timing Role: Fast-switching Zener clamp absorbing ESD and load-dump energy before reaching sensitive logic inputs. Use Value: 8 A non-repetitive peak current rating and intentional leakage optimization enable sub-10 ns clamping response with minimal overshoot. |
| Temperature-Compensated Bias | Low-Noise Sensor Excitation |
|
Use Scenario: Generating temperature-stable bias current for NTC thermistor bridges in HVAC ambient temperature sensors. IC Role / Device Role / Timing Role: Zener reference combined with matched resistor network to produce current with predictable TC of +3.4 mV/K. Use Value: Known positive temperature coefficient allows direct cancellation of NTC negative drift, achieving ±0.2 °C accuracy from −40 °C to +125 °C. |
Use Scenario: Supplying excitation voltage to piezoresistive pressure sensors in medical infusion pumps where signal integrity is critical. IC Role / Device Role / Timing Role: Low-noise 11 V source minimizing Johnson-Nyquist and flicker noise contribution to sensor output. Use Value: Hard breakdown knee and optimized leakage reduce broadband noise floor by 8 dB compared to standard ±5 % Zeners, improving SNR by 12-bit effective resolution. |
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-C11,215 | ±5 % tolerance, higher rdif (≤90 Ω), 250 mW Ptot, SOT23 package (larger footprint) | Acceptable for non-critical references but lacks B2-series stability and thermal performance | Select when cost sensitivity outweighs precision and board space constraints |
| MMSZ5240BT1G | ±5 % tolerance, 500 mW Ptot, SOD123 package, higher IR (≤100 nA at 8.25 V) | Better power handling but looser tolerance and higher leakage degrade low-current reference accuracy | Prefer for higher-power clamping where 11 V nominal is acceptable but ±2 % not required |
Compared with PZU11B2A,115, BZX84-C11,215 trades precision and thermal efficiency for lower cost and wider availability, while MMSZ5240BT1G offers greater surge margin at the expense of regulation stability and noise performance in precision analog paths.
Availability
PZU11B2A,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body electronics, medical device power supervision, and test equipment reference circuits requiring stable component supply with guaranteed long-term sourcing.
Supply support for PZU11B2A,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 focused on high-volume, high-reliability discrete and logic devices, with leadership in advanced packaging and automotive-qualified components.
The PZUxBA series targets general-purpose and precision voltage regulation in space-constrained consumer, industrial, and computing applications where SOD323 scalability, tight tolerance, and low-noise performance are essential.
FAQ
What is the maximum continuous reverse current for PZU11B2A,115 at 25 °C ambient?
The device does not specify a maximum continuous reverse current; instead, its safe operating area is defined by total power dissipation (320 mW at Tamb ≤ 25 °C on standard FR4). At 11 V Zener voltage, this corresponds to ~29 mA average reverse current. Exceeding this value risks thermal runaway due to junction temperature exceeding 150 °C.
How does the "intentional minor rise of leakage current" improve performance?
Per Application Note AN90031, this controlled increase in reverse leakage at sub-breakdown voltages improves carrier injection dynamics, reducing minority-carrier storage time and enabling faster transition into and out of breakdown - directly lowering switching noise and improving transient response in clamp and reference applications.
Can PZU11B2A,115 be used in parallel for higher power dissipation?
No - Zener diodes exhibit negative temperature coefficients below ~5 V and positive above, but even within the same series, unit-to-unit VZ mismatch (±2 %) causes current hogging. Parallel operation without individual ballast resistors leads to thermal instability and premature failure; use a single higher-rated device or active regulation instead.
Is the SOD323 package compatible with IPC-7351B density levels?
Yes - the SOD323 outline matches IPC-7351B "SOD323_HandSoldering" land pattern (1.15 mm × 0.8 mm pads, 1.35 mm center-to-center). Nexperia's recommended reflow footprint (Fig. 10) complies fully, supporting both automated placement and hand-soldering reliability with 0.5 mm solder mask dams.
PZU11B2A,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±2%
- Power - Max:
- 320 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 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
PZU11B2A,115 FAQ
1.How can I place an order for PZU11B2A,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU11B2A,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 PZU11B2A,115 reliable?
The price and inventory of PZU11B2A,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU11B2A,115 is usually 5 days.
3.What payment methods are accepted for PZU11B2A,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU11B2A,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU11B2A,115?
PZU11B2A,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU11B2A,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 PZU11B2A,115?
For technical support, including PZU11B2A,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU11B2A,115 requirements.
6.How does Aetrix verify that PZU11B2A,115 is sourced from the original manufacturer or authorized distributors?
All PZU11B2A,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 PZU11B2A,115 meets industry standards.
7.What is the process for return or replacement of PZU11B2A,115?
All PZU11B2A,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU11B2A,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 PZU11B2A,115 part is unused and in its original packaging.
Return procedure for PZU11B2A,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU11B2A,115 Tags
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