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NXP Semiconductors PZU20B2,115
- Part No.:
- PZU20B2,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
PZU20B2,115.pdf
- Description:
- DIODE ZENER 20V 310MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:66,120
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Product details
Overview
PZU20B2,115 from NXP Semiconductors is a precision Zener diode in SOD323F (SC-90) package, designed for voltage regulation and reference functions with ±2 % tolerance, 20 V nominal Zener voltage at 5 mA, and 100 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 PZU20B2,115 datasheet, PZU20B2,115 pinout, PZU20B2,115 application, or PZU20B2,115 equivalent, key selection criteria include Zener voltage accuracy, thermal coefficient (15 mV/K), junction-to-ambient thermal resistance (230 K/W on standard FR4), and SOD323F footprint compatibility with high-density PCB layouts.
Technical Context
This device functions as a two-terminal voltage reference diode operating in reverse breakdown mode. Its Zener voltage is specified at IZ = 5 mA with ±2 % tolerance (B2 grade), and exhibits a positive temperature coefficient of +15 mV/K - typical for 20 V Zeners in the PZUxB series.
It supports pulsed non-repetitive peak reverse current up to 88 A (IZSM) under 100 μs square-wave surge conditions, and maintains ≤50 nA reverse leakage at VR = 15 V, enabling reliable clamping and reference stability in low-current bias networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 18.86 V to 21.08 V at IZ = 5 mA - defines regulation setpoint with tight B2-grade tolerance |
| Differential Resistance (rdif) | ≤100 Ω - ensures minimal output voltage shift under load current variation |
| Reverse Current (IR) | ≤50 nA at VR = 15 V - enables ultra-low quiescent current in battery-powered references |
| Temperature Coefficient (SZ) | +15 mV/K at IZ = 5 mA - quantifies voltage drift per degree Celsius rise in junction temperature |
| Total Power Dissipation (Ptot) | 310 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Junction Temperature (Tj) | −65 °C to +150 °C - confirms suitability for industrial and automotive under-hood environments |
| Forward Voltage (VF) | ≤1.1 V at IF = 100 mA - supports use as low-drop rectifier or ESD clamp in dual-role designs |
Pinout & Package
SOD323F (SC-90) plastic surface-mounted package: 2-pin, ultra-small outline (2.7 mm × 1.6 mm × 0.95 mm), flat lead, 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; forms reverse-biased junction during regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance (B2 grade) | Enables tighter regulation than ±5 % (B grade) variants, reducing need for post-calibration in precision references |
| Low differential resistance (≤100 Ω) | Minimizes output impedance, improving line and load regulation in feedback loops |
| SOD323F ultra-small footprint | Supports high-density layout in space-constrained applications such as wearables and IoT sensor nodes |
| 150 °C max junction temperature | Allows operation in thermally demanding environments without derating below 125 °C ambient |
| Reflow-solder compatible only | Ensures manufacturability in automated SMT lines while preventing thermal damage during assembly |
Applications
| Power Supply Feedback Reference | Overvoltage Clamp Protection |
|---|---|
|
Use Scenario: Used in the feedback divider of isolated DC-DC converters to regulate output voltage via optocoupler-coupled error amplifier. IC Role / Device Role / Timing Role: Zener reference providing stable 20 V threshold for TL431-like control loop sensing. Use Value: Tight ±2 % tolerance ensures output voltage accuracy within ±1 % across production units without trimming. |
Use Scenario: Placed across microcontroller I/O pins or sensor supply rails to limit transient overvoltage events. IC Role / Device Role / Timing Role: Clamping diode shunting excess energy to ground during ESD or inductive kickback events. Use Value: 88 A non-repetitive peak reverse current rating absorbs 100 μs surges without degradation. |
| Low-Power Analog Reference | Temperature-Stable Bias Generator |
|
Use Scenario: Supplies reference voltage to ADC input buffers or op-amp bias networks in battery-operated instrumentation. IC Role / Device Role / Timing Role: Passive voltage reference establishing fixed DC level for signal conditioning stages. Use Value: ≤50 nA reverse leakage preserves battery life in multi-year deployments. |
Use Scenario: Generates temperature-compensated bias current in precision current sources using matched transistor pairs. IC Role / Device Role / Timing Role: Stable 20 V reference with known +15 mV/K coefficient used to offset thermal drift in analog circuits. Use Value: Predictable temperature coefficient allows active compensation in analog front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B20,115 | Same SOD323F package, ±2 % tolerance, but higher rdif (120 Ω) and lower Ptot (300 mW) | Slightly reduced regulation stability under dynamic load; identical mounting and layout | Select when legacy BOM alignment or distributor stock availability prioritizes compatibility over marginal performance gain |
| MMSZ5248B-TP | SOD-123 package (larger), ±5 % tolerance, 20 V nominal, 22 Ω rdif, 500 mW Ptot | Higher power handling but looser voltage accuracy; requires PCB footprint change | Choose for cost-sensitive designs where ±5 % tolerance is acceptable and thermal margin exceeds 310 mW requirement |
Compared with PZU20B2,115, BZX384-B20,115 offers identical form factor but trades 20 Ω higher differential resistance for broader supply-chain availability, while MMSZ5248B-TP sacrifices accuracy and miniaturization for higher power dissipation and lower unit cost in less space-constrained applications.
Availability
PZU20B2,115 is available at Aetrix Electronics and suitable for power supply feedback reference, overvoltage clamp protection, and low-power analog reference applications requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for PZU20B2,115 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 consumer markets.
The PZUxB series was developed to deliver high-precision, miniature Zener diodes for compact, high-reliability voltage regulation in modern SMT-based power and signal conditioning circuits.
FAQ
What is the Zener voltage tolerance of PZU20B2,115?
The PZU20B2,115 has a Zener voltage tolerance of ±2 %, designated by the "B2" suffix. This means its nominal 20 V Zener voltage is guaranteed between 18.86 V and 21.08 V when measured at IZ = 5 mA and Tj = 25 °C. This tighter tolerance improves system-level voltage accuracy compared to standard ±5 % (B-grade) Zeners and reduces calibration overhead in precision analog designs.
What is the maximum power dissipation for PZU20B2,115 on a standard FR4 PCB?
PZU20B2,115 has a maximum total power dissipation of 310 mW when mounted on a standard FR4 PCB with single-sided copper, tin-plated, and the recommended footprint. This rating applies at ambient temperatures ≤25 °C; derating is required above that temperature, following the curve in Figure 4 of the datasheet. At 70 °C ambient, usable power drops to approximately 180 mW.
Does PZU20B2,115 support reflow soldering only?
Yes, PZU20B2,115 is qualified for reflow soldering only - wave soldering and hand soldering are not recommended. The SOD323F package and internal construction are optimized for Pb-free reflow profiles per J-STD-020. Exceeding peak reflow temperature (260 °C) or time above liquidus risks delamination or parameter shift, so process validation per NXP's application note AN10365 is essential before production ramp.
What is the reverse leakage current specification for PZU20B2,115?
PZU20B2,115 specifies a maximum reverse leakage current (IR) of 50 nA at VR = 15 V and Tj = 25 °C. This ultra-low leakage supports energy-efficient operation in always-on circuits and extends battery life in portable devices. Leakage increases with temperature and applied reverse voltage, remaining below 1 μA up to 18 V at 125 °C.
How is the cathode identified on PZU20B2,115?
The cathode of PZU20B2,115 is identified by a visible marking bar on the device body, aligned with Pin 1 per Table 2 of the datasheet. In the SOD323F package, Pin 1 (cathode) is the left-hand terminal when the marking bar is oriented toward the viewer and the leads point downward. Correct orientation is critical to ensure proper reverse-bias operation in regulation or clamping circuits.
PZU20B2,115 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:
- -
PZU20B2,115 FAQ
1.How can I place an order for PZU20B2,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU20B2,115 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 PZU20B2,115 reliable?
The price and inventory of PZU20B2,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU20B2,115 is usually 5 days.
3.What payment methods are accepted for PZU20B2,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU20B2,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU20B2,115?
PZU20B2,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU20B2,115 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 PZU20B2,115?
For technical support, including PZU20B2,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU20B2,115 requirements.
6.How does Aetrix verify that PZU20B2,115 is sourced from the original manufacturer or authorized distributors?
All PZU20B2,115 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 PZU20B2,115 meets industry standards.
7.What is the process for return or replacement of PZU20B2,115?
All PZU20B2,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU20B2,115, 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 PZU20B2,115 part is unused and in its original packaging.
Return procedure for PZU20B2,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU20B2,115 Tags
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