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NXP Semiconductors PZU11B1,115
- Part No.:
- PZU11B1,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
PZU11B1,115.pdf
- Description:
- DIODE ZENER 11V 310MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:27,300
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Product details
Overview
PZU11B1,115 from NXP Semiconductors is a precision Zener diode in SOD323F (SC-90) package, designed for voltage regulation and reference functions with nominal 11 V Zener voltage at 5 mA, ±2 % tolerance (B1 grade), and 60 Ω maximum differential resistance. It operates within −65 °C to +150 °C ambient range and delivers stable regulation in low-power analog circuits, power supply feedback paths, and overvoltage protection nodes.
For engineers reviewing the PZU11B1,115 datasheet, PZU11B1,115 pinout, PZU11B1,115 application, or PZU11B1,115 equivalent, key selection criteria include Zener voltage accuracy, thermal coefficient (7.4 mV/K), junction-to-ambient thermal resistance (230 K/W on standard FR4), and SOD323F footprint compatibility for high-density PCB layouts.
Technical Context
The PZU11B1,115 is a single silicon Zener diode optimized for stable reverse-bias operation at 5 mA test current, with a typical temperature coefficient of +7.4 mV/K and reverse current ≤100 nA at VR = 8.8 V. Its low 60 Ω dynamic impedance ensures minimal output voltage variation under load changes.
Designed for surface-mount use on FR4 PCBs, it supports reflow soldering only and achieves 550 mW total power dissipation when mounted with a 1 cm² cathode pad-critical for thermal management in compact power rails and sensor bias networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10.44 V to 10.88 V at IZ = 5 mA - defines precise regulation point for feedback loops and reference generation |
| Tolerance Grade | B1 (±2 %) - enables tighter voltage control than standard ±5 % Zeners in critical analog references |
| Differential Resistance (rdif) | ≤60 Ω - ensures low output impedance and minimal regulation error across operating current range |
| Reverse Current (IR) | ≤100 nA at VR = 8.8 V - guarantees low leakage in high-impedance sensing and battery-powered standby circuits |
| Thermal Resistance (Rth(j-a)) | 230 K/W on standard FR4 - determines safe power derating above 25 °C ambient for reliable long-term operation |
| Temperature Coefficient (SZ) | +7.4 mV/K at IZ = 5 mA - quantifies voltage drift per degree, essential for temperature-stable reference design |
| Package | SOD323F (SC-90) - 2.3 mm × 1.35 mm × 0.95 mm footprint ideal for space-constrained consumer and industrial PCBs |
Pinout & Package
SOD323F (SC-90) plastic surface-mounted package with flat leads; cathode identified by marking bar on device body. Dimensions: 2.3 mm × 1.35 mm × 0.95 mm; recommended reflow footprint per Figure 6.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; polarity marker (bar) aligns with this terminal for correct orientation during placement |
| 2 | Anode | Connected to ground or lower-potential rail; forms reverse-biased junction enabling Zener breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance (B1 grade) | Enables tighter regulation accuracy than standard ±5 % Zeners without requiring external trimming components |
| Low 60 Ω differential resistance | Minimizes output voltage deviation under varying load currents in feedback and reference applications |
| 100 nA max reverse leakage at 8.8 V | Preserves signal integrity and battery life in high-impedance bias networks and low-power monitoring circuits |
| 230 K/W thermal resistance on FR4 | Supports up to 310 mW continuous dissipation at 25 °C ambient, scalable with board-level copper area |
| SOD323F ultra-small footprint | Reduces PCB real estate by >50 % vs. SOD123, enabling miniaturized power management and sensor interface designs |
Applications
| Power Supply Feedback Regulation | Overvoltage Protection Clamp |
|---|---|
|
Use Scenario: Stabilizing output voltage in isolated DC-DC converters using optocoupler feedback. IC Role / Device Role / Timing Role: Zener reference element setting precise feedback threshold for TL431 or similar shunt regulators. Use Value: ±2 % tolerance and 60 Ω rdif ensure <±1.5 % output voltage stability across line/load/temperature variations. |
Use Scenario: Protecting microcontroller I/O pins from transient overvoltage events on industrial sensor lines. IC Role / Device Role / Timing Role: Clamping diode limiting input voltage to safe levels during ESD or surge events. Use Value: 10.44–10.88 V breakdown range provides robust margin above 3.3 V or 5 V logic rails while minimizing leakage-induced offset. |
| Reference Voltage Source | Current Source Biasing |
|
Use Scenario: Generating stable bias voltage for op-amp input stages in precision instrumentation amplifiers. IC Role / Device Role / Timing Role: Low-drift voltage reference providing fixed potential for amplifier common-mode setting. Use Value: +7.4 mV/K temperature coefficient allows predictable compensation in dual-op-amp configurations with matched thermal tracking. |
Use Scenario: Establishing constant current for LED driver or sensor excitation circuits using two-resistor Zener bias topology. IC Role / Device Role / Timing Role: Stable voltage node defining base-emitter or gate-source bias point for transistor current sources. Use Value: 100 nA max reverse leakage prevents significant error in sub-100 μA current sources, preserving accuracy below 0.1 %. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C11 | ±5 % tolerance (C-grade), 100 Ω rdif, SOT23 package (larger footprint) | Higher voltage drift and lower regulation accuracy; suitable for non-critical biasing | Select when cost sensitivity outweighs precision requirements and board space permits SOT23 |
| MMSZ4685 | ±5 % tolerance, 100 Ω rdif, SOD123 package (2.7 × 1.6 mm) | Lower thermal performance (Rth(j-a) ≈ 300 K/W) and higher leakage (500 nA) | Prefer for legacy designs using SOD123 footprints where minor regulation degradation is acceptable |
Compared with PZU11B1,115, BZX84-C11 and MMSZ4685 offer lower cost but sacrifice ±2 % accuracy, 60 Ω impedance, and SOD323F miniaturization-making PZU11B1,115 optimal for space-constrained, high-precision regulation where thermal and leakage performance are critical.
Availability
PZU11B1,115 is available at Aetrix Electronics and suitable for power supply feedback regulation, overvoltage protection clamping, and precision reference voltage generation requiring stable component supply across industrial, automotive, and consumer electronics programs.
Supply support for PZU11B1,115 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The PZUxB series was developed to deliver high-precision, miniature Zener diodes for modern surface-mount power management and analog reference circuits demanding tight voltage tolerance and thermal stability.
FAQ
What is the exact Zener voltage range for PZU11B1,115 at 5 mA test current?
The PZU11B1,115 has a guaranteed Zener voltage range of 10.44 V to 10.88 V when measured at IZ = 5 mA and Tj = 25 °C. This ±2 % tolerance (B1 grade) is confirmed in Table 9 of the NXP datasheet and reflects tighter specification than standard ±5 % Zeners like the PZU11B variant.
Does PZU11B1,115 support lead-free reflow soldering?
Yes, PZU11B1,115 is qualified for lead-free reflow soldering per JEDEC J-STD-020. The NXP datasheet explicitly states "Reflow soldering is the only recommended soldering method" and provides thermal profile guidance in Section 10, ensuring compatibility with standard Pb-free assembly processes.
What is the maximum reverse leakage current for PZU11B1,115 at 8.8 V?
The maximum reverse leakage current (IR) for PZU11B1,115 is 100 nA at VR = 8.8 V and Tj = 25 °C, as specified in Table 9. This low leakage supports high-impedance applications such as precision bias networks and battery-monitoring circuits where current draw must be minimized.
How does the thermal resistance of PZU11B1,115 change with PCB layout?
PZU11B1,115 exhibits Rth(j-a) = 230 K/W on standard FR4 with single-sided copper and tin-plated pads (Table 6 condition [2]), but improves to 55 K/W for junction-to-solder-point (Rth(j-sp)). Adding a 1 cm² cathode pad reduces Rth(j-a) to 230 K/W; larger copper areas further enhance thermal performance for higher power operation.
Is PZU11B1,115 pin-compatible with other SOD323F Zener diodes?
Yes, PZU11B1,115 uses the standard SOD323F (SC-90) package with cathode (pin 1) and anode (pin 2) terminals as defined in Table 2. All PZUxB series devices-including PZU10B1,115 and PZU12B1,115-share identical pinout and footprint, enabling direct substitution within the same voltage grade family.
PZU11B1,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
PZU11B1,115 FAQ
1.How can I place an order for PZU11B1,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU11B1,115 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 PZU11B1,115 reliable?
The price and inventory of PZU11B1,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU11B1,115 is usually 5 days.
3.What payment methods are accepted for PZU11B1,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU11B1,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU11B1,115?
PZU11B1,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU11B1,115 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 PZU11B1,115?
For technical support, including PZU11B1,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU11B1,115 requirements.
6.How does Aetrix verify that PZU11B1,115 is sourced from the original manufacturer or authorized distributors?
All PZU11B1,115 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 PZU11B1,115 meets industry standards.
7.What is the process for return or replacement of PZU11B1,115?
All PZU11B1,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU11B1,115, 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 PZU11B1,115 part is unused and in its original packaging.
Return procedure for PZU11B1,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU11B1,115 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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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
Diodes Incorporated
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MM5Z5V1ST1G
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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