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Nexperia USA Inc. PZU5.1BA,115
- Part No.:
- PZU5.1BA,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PZU5.1BA,115.pdf
- Description:
- DIODE ZENER 5.1V 320MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:31,688
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Product details
Overview
PZU5.1BA,115 from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 5.1 V nominal working voltage at 5 mA, with 250 Ω maximum differential resistance, 2 nA reverse current at 0.5 mA, and 0.3 mV/K temperature coefficient. It delivers stable reference voltage in low-power analog circuits and power supply feedback paths.
For engineers reviewing the PZU5.1BA,115 datasheet, PZU5.1BA,115 pinout, PZU5.1BA,115 application, or PZU5.1BA,115 equivalent, key selection criteria include Zener voltage tolerance, dynamic impedance at regulation current, thermal resistance to solder point (55 K/W), and SOD323 footprint compatibility with high-density PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a precise DC reference voltage under varying load and temperature conditions. Its hard breakdown knee and very low leakage current (2 nA at 0.5 mA) enable accurate voltage clamping in precision biasing networks.
The device exhibits a positive temperature coefficient of +0.3 mV/K at 5.1 V, minimizing drift in ambient-temperature-stable applications. Thermal resistance from junction to solder point is 55 K/W, supporting reliable operation on standard FR4 PCBs with minimal copper area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 5.1 V nominal at IZ = 5 mA; defines stable regulation point for feedback loops |
| Tolerance | ±5 % (B series); ensures predictable voltage window across production lots |
| Differential Resistance rdif | 250 Ω max at IZ = 5 mA; determines output impedance and load regulation error |
| Reverse Current IR | 2 nA max at VR = 0.5 × VZ; enables ultra-low quiescent current in battery-powered references |
| Temperature Coefficient SZ | +0.3 mV/K at 25 °C; provides minimal drift over industrial temperature range |
| Total Power Dissipation Ptot | 320 mW at Tamb ≤ 25 °C on FR4; sets maximum continuous regulation current (~63 mA) |
| Package | SOD323 (SC-76); 1.7 mm × 1.25 mm × 0.95 mm body; supports 0.4 mm pitch reflow assembly |
Pinout & Package
SOD323 (SC-76) surface-mount plastic package with 2 leads, 1.3 mm pitch, and cathode marked by a bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; marking bar identifies this terminal |
| 2 | Anode | Connected to ground or current-limiting resistor; completes reverse-bias path |
Key Features
| Feature | Design Value |
|---|---|
| Very low dynamic impedance | 250 Ω max at 5 mA enables tight voltage regulation under load transients |
| Hard breakdown knee | Sharp transition into conduction improves accuracy in low-current reference designs |
| Ultra-low leakage current | 2 nA at 0.5 mA reduces error in high-impedance bias networks |
| Optimized thermal resistance | 55 K/W junction-to-solder-point supports stable operation without thermal derating on standard PCBs |
Applications
| Low-Power Sensor Biasing | USB-C PD Feedback Reference |
|---|---|
Use Scenario: Providing stable 5.1 V reference for analog front-end amplifiers in IoT environmental sensors. IC Role / Device Role / Timing Role: Zener diode acts as shunt voltage reference in high-impedance divider network feeding op-amp input. Use Value: 2 nA leakage minimizes offset error; ±5 % tolerance meets 12-bit ADC reference accuracy requirements. |
Use Scenario: Setting precise feedback threshold in USB-C Power Delivery sink controller voltage monitor. IC Role / Device Role / Timing Role: Shunt regulator establishes exact 5.1 V trip point for overvoltage protection circuitry. Use Value: Hard breakdown knee ensures fast, repeatable response to transient overvoltage events. |
| Industrial PLC Input Protection | Medical Wearable Battery Monitor |
Use Scenario: Clamping 24 V digital input signals to safe logic levels in programmable logic controllers. IC Role / Device Role / Timing Role: Zener diode functions as overvoltage clamp in series with current-limiting resistor. Use Value: 40 W non-repetitive peak power rating absorbs ESD and surge energy without failure. |
Use Scenario: Generating reference voltage for lithium-ion cell voltage measurement in compact wearable health monitors. IC Role / Device Role / Timing Role: Low-leakage Zener supplies reference to 16-bit delta-sigma ADC measuring battery terminal voltage. Use Value: 0.3 mV/K temperature coefficient limits voltage drift to <0.5 % over 0–50 °C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B5V1 | Same 5.1 V/±5 % rating but SOD323 package with 400 mW Ptot; higher 350 Ω rdif | Higher power dissipation margin but looser regulation due to higher impedance | Select when board layout allows larger thermal pad or higher continuous current is needed |
| MMSZ5231B | SOD-123 package; 5.1 V/±5 %; 17 Ω rdif but 500 nA IR at 0.5×VZ | Lower impedance improves load regulation but higher leakage increases bias error | Select for high-precision feedback where leakage is less critical than dynamic response |
Compared with BZX384-B5V1, PZU5.1BA,115 offers lower dynamic impedance and tighter thermal resistance control; compared with MMSZ5231B, it trades higher leakage for significantly lower capacitance (300 pF vs. ~500 pF), improving high-frequency noise immunity in sensitive analog nodes.
Availability
PZU5.1BA,115 is available at Aetrix Electronics and suitable for low-power sensor biasing, USB-C PD feedback reference, and industrial PLC input protection requiring stable component supply and consistent SOD323 footprint compatibility.
Supply support for PZU5.1BA,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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
The PZUxBA series targets general-purpose voltage regulation in space-constrained applications, emphasizing low leakage, sharp breakdown, and robust SMD manufacturability across the 2.4–51 V range.
FAQ
What is the maximum continuous Zener current for PZU5.1BA,115 at 25 °C ambient?
At 25 °C ambient on a standard FR4 PCB, the maximum continuous Zener current is approximately 63 mA, calculated from the 320 mW total power dissipation rating divided by the 5.1 V nominal Zener voltage. Derating is required above 25 °C per the thermal resistance curve.
Does PZU5.1BA,115 support reflow soldering per JEDEC J-STD-020?
Yes - the SOD323 package is qualified for lead-free reflow soldering with peak temperatures up to 260 °C, using the recommended footprint in Figure 10 of the datasheet. The 0.95 mm height and 1.3 mm pitch comply with standard stencil and placement tolerances.
How does the +0.3 mV/K temperature coefficient affect long-term stability?
The +0.3 mV/K coefficient means the Zener voltage increases by 0.3 mV per Kelvin rise in junction temperature. Over a 100 K range (−40 °C to +60 °C ambient), this contributes ±30 mV drift - within the ±255 mV total tolerance budget including initial ±5 % and aging effects.
Can PZU5.1BA,115 be used in place of a 5 V TTL reference?
No - it is not a 5 V TTL reference. Its 5.1 V nominal Zener voltage and ±5 % tolerance (4.85–5.36 V) exceed TTL logic high thresholds (typically ≥2.0 V). It serves as a precision analog reference, not a digital logic level translator or driver.
PZU5.1BA,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.1 V
- Tolerance:
- ±5%
- Power - Max:
- 320 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 1.5 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
PZU5.1BA,115 FAQ
1.How can I place an order for PZU5.1BA,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU5.1BA,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 PZU5.1BA,115 reliable?
The price and inventory of PZU5.1BA,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU5.1BA,115 is usually 5 days.
3.What payment methods are accepted for PZU5.1BA,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU5.1BA,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU5.1BA,115?
PZU5.1BA,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU5.1BA,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 PZU5.1BA,115?
For technical support, including PZU5.1BA,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU5.1BA,115 requirements.
6.How does Aetrix verify that PZU5.1BA,115 is sourced from the original manufacturer or authorized distributors?
All PZU5.1BA,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 PZU5.1BA,115 meets industry standards.
7.What is the process for return or replacement of PZU5.1BA,115?
All PZU5.1BA,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU5.1BA,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 PZU5.1BA,115 part is unused and in its original packaging.
Return procedure for PZU5.1BA,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU5.1BA,115 Tags
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