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NXP Semiconductors PZU11B3,115
- Part No.:
- PZU11B3,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
PZU11B3,115.pdf
- Description:
- DIODE ZENER 11V 310MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:21,000
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Product details
Overview
PZU11B3,115 from NXP Semiconductors is a precision Zener diode in SOD323F (SC-90) package, designed for voltage regulation and reference functions at 11 V nominal Zener voltage with ±2 % tolerance (B3 grade), 60 Ω maximum differential resistance, and 108 mA non-repetitive peak reverse current. It operates in general-purpose power supply and signal conditioning circuits requiring stable low-power voltage clamping.
For engineers reviewing the PZU11B3,115 datasheet, PZU11B3,115 pinout, PZU11B3,115 application, or PZU11B3,115 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (230 K/W on standard FR4), junction temperature limit (150 °C), and SOD323F footprint compatibility for high-density PCB layouts.
Technical Context
This discrete Zener diode operates in reverse breakdown mode to maintain a stable reference voltage under varying load and temperature conditions. Its B3 tolerance grade ensures tight 11.10 V to 11.56 V regulation range at IZ = 5 mA, with low temperature coefficient (±3 mV/K typical) and minimal capacitance (8 pF at 1 MHz).
Designed for surface-mount use on FR4 PCBs, it supports standard reflow soldering and delivers 310 mW total power dissipation at Tamb ≤ 25 °C, derating linearly above that ambient temperature per the published curve.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener voltage VZ | 11.10 V to 11.56 V at IZ = 5 mA - defines precise regulation window for feedback loops |
| Tolerance grade | B3 - ±2 % tolerance, tighter than B/B1/B2 variants for higher reference accuracy |
| Differential resistance rdif | ≤60 Ω - low dynamic impedance ensures stable output under small-signal load variations |
| Reverse current IR | ≤100 nA at VR = 8.8 V - minimal leakage preserves efficiency in low-power bias networks |
| Thermal resistance Rth(j-a) | 230 K/W on FR4 with standard footprint - determines safe operating ambient range at rated power |
| Junction temperature Tj | 150 °C maximum - sets upper thermal limit for reliability in enclosed or high-temp environments |
| Non-repetitive peak IZSM | 108 A - surge handling capability for transient overvoltage protection applications |
Pinout & Package
SOD323F (SC-90) plastic surface-mounted package: 2-pin, ultra-small outline (2.3 mm × 1.35 mm × 0.95 mm), flat lead, cathode marked by bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; polarity marker (bar) enables correct orientation during placement |
| 2 | Anode | Connected to ground or lower-potential rail; completes reverse-bias path for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance (B3) | Enables high-accuracy voltage references without external trimming in 11 V systems |
| 310 mW power rating at 25 °C | Supports continuous regulation in low-to-medium current bias networks (e.g., op-amp references) |
| Low 8 pF capacitance at 1 MHz | Minimizes signal distortion in high-frequency clamp or waveform-shaping circuits |
| 150 °C max junction temperature | Permits operation in automotive under-hood or industrial control environments with limited airflow |
| SOD323F footprint compatibility | Enables automated placement and reflow in space-constrained consumer and portable electronics |
Applications
| Power Supply Voltage Reference | Overvoltage Clamp Circuit |
|---|---|
Use Scenario: Providing stable 11 V reference for adjustable DC-DC converter feedback divider in industrial power modules. IC Role / Device Role / Timing Role: Zener diode acts as precision shunt reference, setting output voltage via resistor divider ratio. Use Value: B3-grade tolerance ensures ±2 % output voltage accuracy across temperature, reducing need for post-production calibration. | Use Scenario: Protecting microcontroller I/O pins from ESD-induced transients in USB peripheral designs. IC Role / Device Role / Timing Role: Shunt clamping device diverting surge current away from sensitive inputs when voltage exceeds 11.56 V. Use Value: 108 A non-repetitive peak current rating handles IEC 61000-4-2 Level 4 surges without degradation. |
| Signal Level Translation | Analog Sensor Bias Network |
Use Scenario: Converting 12 V logic signals to 11 V compatible levels for legacy analog front-end ICs. IC Role / Device Role / Timing Role: Passive level shifter using Zener forward drop (≤1.1 V at 100 mA) and reverse breakdown. Use Value: Low 60 Ω differential resistance maintains signal integrity during fast edge transitions. | Use Scenario: Biasing a 11 V reference for bridge-based pressure sensor excitation in HVAC control units. IC Role / Device Role / Timing Role: Stable voltage source for Wheatstone bridge excitation, minimizing measurement drift. Use Value: ±3 mV/K temperature coefficient limits offset drift to <±0.3 % over −40 °C to +85 °C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B11,115 | Same 11 V nominal, ±2 % (B grade), but SOD323 package (not SOD323F); 400 K/W Rth(j-a) | Higher thermal resistance limits power handling in compact layouts; identical electrical specs otherwise | Select if existing footprint allows SOD323 or thermal derating is acceptable |
| MMSZ5240BT1G | 10 V nominal, ±5 % (B grade), SOD123 package; 100 Ω rdif, 500 nA IR | Lower voltage and looser tolerance; larger footprint reduces board density | Choose only if 10 V reference suffices and layout accommodates larger SOD123 pad geometry |
Compared with PZU11B3,115, BZX384-B11,115 offers identical regulation voltage and tolerance but requires thermal redesign due to higher junction-to-ambient resistance, while MMSZ5240BT1G trades accuracy and size for broader availability and lower cost in less demanding 10 V applications.
Availability
PZU11B3,115 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, consumer appliance control boards, and medical instrumentation requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for PZU11B3,115 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, low-profile Zener diodes for space-constrained voltage reference and protection circuits in mass-produced electronic systems.
FAQ
What is the exact Zener voltage range for PZU11B3,115 at 5 mA test current?
The PZU11B3,115 has a guaranteed Zener voltage range of 11.10 V to 11.56 V when measured at IZ = 5 mA and Tj = 25 °C, reflecting its ±2 % B3 tolerance grade as specified in Table 9 of the NXP datasheet. This range ensures predictable regulation behavior in feedback and reference applications without requiring binning or post-selection.
Does PZU11B3,115 support reflow soldering, and what profile is recommended?
Yes, PZU11B3,115 is qualified for reflow soldering only - wave or hand soldering is not recommended. NXP specifies a standard lead-free reflow profile with peak temperature ≤260 °C, consistent with JEDEC J-STD-020. The SOD323F package's thermal characteristics require adherence to this profile to avoid delamination or bond wire damage.
How does the thermal resistance of PZU11B3,115 change with PCB layout?
PZU11B3,115 exhibits Rth(j-a) = 230 K/W on FR4 with standard footprint (Table 6), but degrades to 400 K/W without enhanced copper area. Adding a 1 cm² cathode pad reduces it to 230 K/W, directly impacting maximum allowable power dissipation - e.g., at 70 °C ambient, usable power drops from ~180 mW (standard) to ~250 mW (enhanced pad).
Can PZU11B3,115 be used in place of older PZU11B variants?
Yes, PZU11B3,115 is a direct functional upgrade to PZU11B (±5 %) and PZU11B1/B2 (±2 %), sharing identical SOD323F package, pinout, and absolute maximum ratings. Its tighter B3 tolerance improves reference accuracy without layout or thermal changes, making it a drop-in replacement where enhanced voltage stability is required.
What is the maximum reverse leakage current for PZU11B3,115 at 8.8 V?
At VR = 8.8 V and Tj = 25 °C, the maximum reverse leakage current for PZU11B3,115 is 100 nA, as confirmed in Table 9 of the NXP datasheet. This low leakage supports energy-efficient bias networks in battery-powered devices and minimizes error in high-impedance reference dividers.
PZU11B3,115 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:
- -
PZU11B3,115 FAQ
1.How can I place an order for PZU11B3,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU11B3,115 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 PZU11B3,115 reliable?
The price and inventory of PZU11B3,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU11B3,115 is usually 5 days.
3.What payment methods are accepted for PZU11B3,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU11B3,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU11B3,115?
PZU11B3,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU11B3,115 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 PZU11B3,115?
For technical support, including PZU11B3,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU11B3,115 requirements.
6.How does Aetrix verify that PZU11B3,115 is sourced from the original manufacturer or authorized distributors?
All PZU11B3,115 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 PZU11B3,115 meets industry standards.
7.What is the process for return or replacement of PZU11B3,115?
All PZU11B3,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU11B3,115, 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 PZU11B3,115 part is unused and in its original packaging.
Return procedure for PZU11B3,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU11B3,115 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
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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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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