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Nexperia USA Inc. PZU11B3A,115
- Part No.:
- PZU11B3A,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PZU11B3A,115.pdf
- Description:
- DIODE ZENER 11V 320MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:7,068
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Product details
Overview
PZU11B3A,115 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, designed for precision voltage reference and clamping in low-power analog circuits. It delivers nominal 11 V regulation at 5 mA, with differential resistance ≤60 Ω, reverse current ≤10 nA at 0.5 mA, temperature coefficient of +7.4 mV/K, and non-repetitive peak reverse power dissipation up to 40 W for 100 µs pulses.
For engineers reviewing the PZU11B3A,115 datasheet, PZU11B3A,115 pinout, PZU11B3A,115 application, or PZU11B3A,115 equivalent, this device is selected for stable low-current voltage referencing in sensor signal conditioning, power supply feedback loops, and overvoltage protection where tight tolerance and low leakage are critical.
Technical Context
This Zener diode operates in reverse breakdown mode with hard knee characteristics optimized for fast switching and noise reduction per AN90031. Its 11 V nominal working voltage falls within the intentional minor-leakage subset (PZU11B2A–PZU51BA), balancing low dynamic impedance and controlled IR rise.
Thermal resistance from junction to solder point is 55 K/W, enabling reliable operation up to 150 °C junction temperature. The SOD323 package supports high-density surface-mount assembly while maintaining 320 mW total power dissipation on standard FR4 PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 11 V at IZ = 5 mA - precise reference point for feedback and clamping circuits |
| Tolerance | ±2 % (B3 series) - enables tighter regulation than ±5 % variants in voltage-sensitive designs |
| Differential Resistance | ≤60 Ω at IZ = 5 mA - ensures minimal output voltage shift under load variation |
| Reverse Current | ≤10 nA at VR = 0.5 × VZ - supports ultra-low-power standby and battery-backed systems |
| Temperature Coefficient | +7.4 mV/K - predictable positive drift allows compensation in temperature-stable references |
| Non-repetitive Peak Power | 40 W for 100 µs square wave - handles transient surges without degradation |
| Total Power Dissipation | 320 mW at Tamb ≤ 25 °C - defines continuous DC operating limit on standard PCB layout |
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.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; marking bar identifies this terminal for correct PCB orientation |
| 2 | Anode | Connected to ground or lower-potential rail; completes reverse-bias path for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Optimized leakage profile | Intentional minor IR rise improves switching speed and reduces broadband noise per AN90031 |
| Hard breakdown knee | Sharp transition into conduction enables clean clamping without soft saturation effects |
| Low thermal resistance | 55 K/W to solder point allows efficient heat transfer in compact layouts |
| Small outline footprint | SOD323 enables placement near IC pins for local decoupling and reference stability |
| E24 voltage coverage | Part of 105-type series spanning 2.4 V–51 V, supporting broad design reuse across platforms |
Applications
| Power Supply Feedback | Sensor Signal Conditioning |
|---|---|
Use Scenario: Stabilizing output voltage in isolated DC-DC converters using optocoupler feedback networks. IC Role / Device Role / Timing Role: Provides precise 11 V reference to TL431-like shunt regulator ICs, setting secondary-side regulation threshold. Use Value: ±2 % tolerance ensures <±1.5 % output voltage accuracy across line/load/temperature, meeting industrial PSU specs. |
Use Scenario: Biasing and clamping front-end amplifiers for thermistor or RTD measurement circuits. IC Role / Device Role / Timing Role: Acts as low-leakage voltage clamp protecting op-amp inputs from ESD-induced overvoltage during sensor hot-plug events. Use Value: 10 nA reverse current at 5.5 V prevents input bias error accumulation in nanoamp-level sensor interfaces. |
| Overvoltage Protection | Reference Voltage Generation |
Use Scenario: Safeguarding microcontroller I/O pins against transient spikes on industrial fieldbus lines (e.g., RS-485 stubs). IC Role / Device Role / Timing Role: Shunts excess energy above 11 V to ground before reaching sensitive logic inputs. Use Value: 40 W non-repetitive surge rating absorbs 100 µs transients per IEC 61000-4-4 Level 3 without parameter shift. |
Use Scenario: Generating stable 11 V reference for ADC voltage dividers in battery-powered data loggers. IC Role / Device Role / Timing Role: Supplies fixed reference to SAR ADCs requiring <10 ppm/°C drift over 0–70 °C ambient range. Use Value: +7.4 mV/K temperature coefficient enables first-order compensation when paired with NTC thermistors. |
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), 100 nA IR at 0.5×VZ | Acceptable for cost-sensitive non-critical references but lacks low-leakage optimization | Choose when budget constraints outweigh precision and noise requirements |
| MMSZ5240BT1G | ±5 % tolerance, SOD-123 package (larger footprint), 100 nA IR, +8.4 mV/K TC | Compatible with legacy footprints but introduces 1.2× thermal resistance penalty | Prefer only if board redesign for SOD323 is impractical |
Compared with PZU11B3A,115, BZX84-C11,215 trades 3× higher leakage and looser tolerance for lower unit cost, while MMSZ5240BT1G sacrifices 25 % higher thermal resistance and identical tolerance for backward-compatible packaging-neither matches the combined low-leakage, tight-tolerance, and low-rdif performance of the PZUxB3A series.
Availability
PZU11B3A,115 is available at Aetrix Electronics and suitable for power supply feedback, sensor signal conditioning, overvoltage protection, and reference voltage generation requiring stable component supply across industrial, instrumentation, and embedded control programs.
Supply support for PZU11B3A,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 automotive-qualified and industrial-grade components.
PZUxBA series belongs to Nexperia's general-purpose Zener regulator portfolio, engineered specifically for surface-mounted voltage reference and clamping in space-constrained, low-power analog subsystems.
FAQ
What is the maximum continuous reverse current the PZU11B3A,115 can sustain without degradation?
The device has no specified maximum continuous reverse current rating; instead, its safe operating area is defined by total power dissipation (320 mW at 25 °C ambient). At 11 V Zener voltage, this corresponds to ~29 mA DC current on a standard FR4 PCB. Exceeding this requires derating per thermal resistance curves in the datasheet.
How does the B3 tolerance series differ electrically from B2 or B1 in the PZUxBA family?
B3 denotes ±2 % tolerance with tighter binning than B2 (±2 %, wider min/max spread) and B1 (±2 %, intermediate spread). For PZU11B3A,115, this means guaranteed 10.89–11.11 V regulation at 5 mA, versus 10.78–11.22 V for B2 and 10.78–11.22 V for B1 - all ±2 % nominal, but B3 offers narrower actual distribution.
Can PZU11B3A,115 be used in place of a 12 V Zener diode in an existing design?
No - it is rated for 11 V nominal regulation and will not provide 12 V output. Substituting would cause undershoot in feedback loops or insufficient clamping voltage. Use PZU12B3A,115 for 12 V applications; the B3 tolerance and SOD323 package remain identical.
Is the PZU11B3A,115 suitable for automotive applications?
No - the datasheet explicitly states these parts are non-automotive qualified. They lack AEC-Q200 stress testing, automotive-grade traceability, and extended temperature validation beyond −55 °C to +150 °C ambient. Automotive designs require Nexperia's automotive-qualified Zener series such as PZUxHBA.
PZU11B3A,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):
- 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
PZU11B3A,115 FAQ
1.How can I place an order for PZU11B3A,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU11B3A,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 PZU11B3A,115 reliable?
The price and inventory of PZU11B3A,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU11B3A,115 is usually 5 days.
3.What payment methods are accepted for PZU11B3A,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU11B3A,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU11B3A,115?
PZU11B3A,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU11B3A,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 PZU11B3A,115?
For technical support, including PZU11B3A,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU11B3A,115 requirements.
6.How does Aetrix verify that PZU11B3A,115 is sourced from the original manufacturer or authorized distributors?
All PZU11B3A,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 PZU11B3A,115 meets industry standards.
7.What is the process for return or replacement of PZU11B3A,115?
All PZU11B3A,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU11B3A,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 PZU11B3A,115 part is unused and in its original packaging.
Return procedure for PZU11B3A,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU11B3A,115 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZT52C15-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
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SMAJ4744A-TP
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SMAZ12-13-F
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