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Nexperia USA Inc. PZU11BA,115
- Part No.:
- PZU11BA,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PZU11BA,115.pdf
- Description:
- DIODE ZENER 11V 320MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:35,932
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Product details
Overview
PZU11BA,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 at 25 °C ambient, and 40 W non-repetitive peak reverse power. It delivers low dynamic impedance (60 Ω max at IZ = 5 mA), tight temperature coefficient (±0.3 mV/K typ), and optimized leakage for fast switching in precision reference circuits.
For engineers reviewing the PZU11BA,115 datasheet, PZU11BA,115 pinout, PZU11BA,115 application, or PZU11BA,115 equivalent, this device supports stable voltage clamping in low-power analog signal conditioning, overvoltage protection for microcontroller I/O rails, and noise-sensitive reference generation where thermal stability and sharp breakdown knee are critical.
Technical Context
This Zener diode operates in reverse-biased breakdown mode with a nominal regulation voltage of 11 V at 5 mA test current, exhibiting a typical temperature coefficient of +0.3 mV/K and maximum differential resistance of 60 Ω. Its design targets low-current stability, with specified reverse current ≤10 nA at 0.5 mA and ≤100 nA at 5 mA.
The device uses an intentional minor rise in leakage current-per AN90031-to improve transient response and reduce switching noise, distinguishing it from standard ±5 % tolerance variants like PZU11BA. Thermal resistance from junction to solder point is 55 K/W, enabling reliable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 11 V at IZ = 5 mA - precise regulation point for mid-range voltage references |
| Tolerance | ±2 % (B2 series) - enables tighter system-level voltage margin control vs. ±5 % parts |
| Total Power Dissipation | 320 mW at Tamb ≤ 25 °C on FR4 PCB - defines continuous DC bias capability |
| Non-repetitive Peak Reverse Power | 40 W for tp = 100 µs - supports surge suppression in transient protection circuits |
| Differential Resistance | ≤60 Ω at IZ = 5 mA - ensures minimal output voltage shift under load variation |
| Reverse Current | ≤10 nA at IZ = 0.5 mA - guarantees ultra-low standby leakage in battery-powered systems |
| Thermal Resistance (j–sp) | 55 K/W - enables efficient heat transfer to PCB copper, critical for sustained 11 V regulation |
Pinout & Package
SOD323 (SC-76) surface-mount plastic package: 1.7 mm × 1.25 mm × 0.95 mm body, 1.3 mm lead pitch, cathode-marked with 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; forms reverse-biased junction for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Optimized leakage profile | Intentional minor rise per AN90031 improves switching speed and reduces noise in dynamic clamping |
| Low differential impedance | 60 Ω max at 5 mA enables stable regulation under varying load currents in feedback networks |
| Sharp breakdown knee | Hard transition into conduction minimizes voltage hysteresis during turn-on in protection circuits |
| High thermal reliability | 150 °C max junction temperature and 55 K/W j–sp thermal resistance support industrial ambient conditions |
| Small-footprint SMD | SOD323 package allows dense placement in space-constrained analog sections of mixed-signal PCBs |
Applications
| Power Supply Reference | Microcontroller I/O Protection |
|---|---|
Use Scenario: Providing stable 11 V reference for ADC voltage dividers and op-amp biasing in industrial sensor interfaces. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to clamp and stabilize reference node voltage. Use Value: ±2 % tolerance and +0.3 mV/K tempco ensure <±10 mV drift over –40 °C to +85 °C, meeting 12-bit ADC accuracy requirements. |
Use Scenario: Clamping 3.3 V or 5 V GPIO lines against ESD and supply transients in embedded controllers. IC Role / Device Role / Timing Role: Fast-switching Zener acting as bidirectional voltage limiter between I/O pin and ground. Use Value: Optimized leakage and 40 W surge rating enable sub-100 ns response to 8 kV HBM events without latch-up. |
| Low-Power Sensor Biasing | Signal-Level Voltage Clamp |
Use Scenario: Generating precise bias voltages for MEMS accelerometers and analog front-end amplifiers in wearables. IC Role / Device Role / Timing Role: Low-current Zener regulator supplying 11 V to high-impedance sensor excitation circuits. Use Value: ≤10 nA reverse current at 0.5 mA ensures <1 µA total quiescent draw, extending battery life in multi-year deployments. |
Use Scenario: Limiting audio or communication signal peaks to prevent amplifier saturation in portable audio codecs. IC Role / Device Role / Timing Role: Reverse-biased Zener shunting excess signal energy to ground during overdrive events. Use Value: 60 Ω dynamic impedance maintains linearity up to ±1 V overdrive while preserving signal integrity below threshold. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PZU11B,115 | ±5 % tolerance, higher rdif (80 Ω max), no intentional leakage optimization | Acceptable for non-critical biasing where cost is prioritized over precision | Select when ±5 % voltage margin suffices and AN90031 noise reduction is unnecessary |
| BZX84-C11,215 | ±5 % tolerance, SOT23 package (larger footprint), 350 mW Ptot, higher Cd (40 pF) | Better thermal mass but slower response due to higher capacitance and less optimized leakage | Choose for legacy SOT23 layouts or when higher surge energy handling is needed over speed |
Compared with PZU11BA,115, the PZU11B,115 trades precision and noise performance for cost, while BZX84-C11,215 sacrifices switching speed and board area for thermal robustness-making PZU11BA,115 optimal for compact, noise-sensitive 11 V reference designs.
Availability
PZU11BA,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, microcontroller I/O protection, low-power wearable biasing, and audio signal clamping requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PZU11BA,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 belongs to Nexperia's general-purpose Zener regulator product line, engineered specifically for precision voltage reference and transient suppression in space-constrained, low-power consumer and industrial electronics.
FAQ
What is the maximum continuous reverse current for PZU11BA,115 at 25 °C ambient?
The maximum continuous reverse current is not directly specified, but the device is rated for 320 mW total power dissipation at Tamb ≤ 25 °C. At 11 V Zener voltage, this corresponds to a maximum steady-state reverse current of approximately 29 mA (320 mW ÷ 11 V), assuming full power is allocated to Zener conduction.
Does PZU11BA,115 support reflow soldering, and what footprint is recommended?
Yes, PZU11BA,115 is qualified for reflow soldering. The recommended footprint is defined in Figure 10 of the datasheet: two 0.5 mm × 1.5 mm solder lands spaced 1.3 mm apart, with 0.6 mm solder resist opening per pad, matching the SOD323 (SC-76) outline dimensions.
How does the B2 tolerance series differ electrically from the B series in the PZUxBA family?
The B2 series (e.g., PZU11BA,115) specifies ±2 % Zener voltage tolerance versus ±5 % for the B series (e.g., PZU11B,115), achieved via tighter process control. B2 parts also feature lower maximum differential resistance (60 Ω vs. 80 Ω) and are explicitly tuned per AN90031 for improved switching noise performance.
Can PZU11BA,115 be used in place of a 12 V Zener diode in a voltage reference circuit?
No-PZU11BA,115 is strictly a nominal 11 V device with ±2 % tolerance (10.78 V to 11.22 V). Substituting it for a 12 V Zener would cause systematic under-regulation by ~1 V. For 12 V, use PZU12B2A,115 (12 V ±2 %), which shares identical package, thermal, and electrical characteristics except nominal voltage.
PZU11BA,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±5%
- 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
PZU11BA,115 FAQ
1.How can I place an order for PZU11BA,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU11BA,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 PZU11BA,115 reliable?
The price and inventory of PZU11BA,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU11BA,115 is usually 5 days.
3.What payment methods are accepted for PZU11BA,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU11BA,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU11BA,115?
PZU11BA,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU11BA,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 PZU11BA,115?
For technical support, including PZU11BA,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU11BA,115 requirements.
6.How does Aetrix verify that PZU11BA,115 is sourced from the original manufacturer or authorized distributors?
All PZU11BA,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 PZU11BA,115 meets industry standards.
7.What is the process for return or replacement of PZU11BA,115?
All PZU11BA,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU11BA,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 PZU11BA,115 part is unused and in its original packaging.
Return procedure for PZU11BA,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU11BA,115 Tags
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