Nexperia USA Inc. PZU5.6B1A,115
- Part No.:
- PZU5.6B1A,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PZU5.6B1A,115.pdf
- Description:
- DIODE ZENER 5.6V 320MW SOD323
- Quantity:
- Payment:

- Shipping:

Inventory:1,693
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Product details
Overview
PZU5.6B1A,115 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 5.6 V nominal working voltage, 100 Ω maximum differential resistance at IZ = 5 mA, and 1000 nA reverse current at IZ = 0.5 mA. It delivers stable reference voltage in low-power analog circuits, power supply feedback loops, and overvoltage protection stages.
For engineers reviewing the PZU5.6B1A,115 datasheet, PZU5.6B1A,115 pinout, PZU5.6B1A,115 application, or PZU5.6B1A,115 equivalent, this device supports precision voltage clamping in space-constrained SMT designs where tight Zener tolerance, low leakage, and hard breakdown knee are required.
Technical Context
This Zener diode operates in reverse-biased breakdown mode with a nominal regulation voltage of 5.6 V at 5 mA test current. Its temperature coefficient is +2.5 mV/K at IZ = 5 mA, indicating positive thermal drift optimized for mid-range voltage references.
The device features a hard breakdown knee and very low dynamic impedance - critical for maintaining regulation accuracy under varying load conditions. Its SOD323 package enables high-density PCB layouts while sustaining 320 mW total power dissipation on standard FR4 board.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage (VZ) | 5.6 V at IZ = 5 mA - defines precise regulation point for feedback and reference circuits |
| Tolerance | ±2 % (B1 series) - ensures tight voltage matching across production batches for calibration-critical designs |
| Differential Resistance (rdif) | ≤100 Ω at IZ = 5 mA - minimizes output voltage shift under load variation |
| Reverse Current (IR) | ≤1000 nA at VR = 4.01 V - enables ultra-low standby power in battery-backed systems |
| Total Power Dissipation (Ptot) | 320 mW at Tamb ≤ 25 °C on FR4 PCB - sets practical continuous operating limit for thermal design |
| Non-repetitive Peak Power (PZSM) | 40 W for tp = 100 µs - supports transient surge suppression without failure |
| Junction Temperature (Tj) | 150 °C maximum - determines maximum allowable ambient + self-heating in enclosed environments |
Pinout & Package
SOD323 (SC-76) plastic surface-mount package: 1.7 mm × 1.25 mm × 0.95 mm body, 1.3 mm lead pitch, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; polarity marking bar aligns with this terminal |
| 2 | Anode | Connected to ground or lower-potential rail; completes reverse-bias path for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Hard breakdown knee | Enables sharp, predictable turn-on for reliable clamping without soft saturation region |
| Very low leakage current | 1000 nA max at 4.01 V allows use in microamp-level bias networks and energy-harvesting circuits |
| ±2 % voltage tolerance (B1) | Reduces need for post-production trimming in precision voltage reference and ADC reference applications |
| Low dynamic impedance | 100 Ω max at 5 mA maintains regulation stability across ±10 % load current changes |
| SOD323 footprint compatibility | Standardized 1.3 mm pitch enables automated placement and reflow soldering on high-density PCBs |
Applications
| Power Supply Feedback Loop | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Regulates error amplifier input in isolated DC-DC converter feedback network. IC Role / Device Role / Timing Role: Provides stable 5.6 V reference to optocoupler input, enabling accurate output voltage sensing. Use Value: ±2 % tolerance ensures <±1 % output regulation error before compensation loop adjustment. |
Use Scenario: Generates clean reset signal during brown-out events in 3.3 V MCU systems. IC Role / Device Role / Timing Role: Clamps reset line to 5.6 V until supply rises above threshold, then releases reset via RC delay. Use Value: Hard breakdown knee prevents false triggering during slow-rising VCC ramps. |
| Overvoltage Protection Stage | ADC Reference Stabilization |
Use Scenario: Shunts transient surges on 5 V rail in industrial sensor interface modules. IC Role / Device Role / Timing Role: Acts as primary clamp before TVS diode, absorbing fast 40 W spikes per IEC 61000-4-5. Use Value: 40 W non-repetitive peak rating handles 100 µs surges without degradation. |
Use Scenario: Supplies stable reference to 12-bit SAR ADC in portable medical instrumentation. IC Role / Device Role / Timing Role: Replaces higher-cost bandgap reference where 5.6 V matches ADC full-scale range. Use Value: 100 Ω dynamic impedance limits reference voltage shift to <0.5 LSB under 100 µA load variation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B5V6,115 | Same 5.6 V ±2 %, but SOD323 package with 250 mW Ptot rating and 120 Ω rdif | Lower power handling limits use in sustained >10 mA regulation; higher rdif reduces load regulation accuracy | Select when cost sensitivity outweighs dynamic impedance and surge capability requirements |
| MMSZ5232BS-7-F | 5.6 V ±5 %, SOD323, 350 mW Ptot, 150 Ω rdif, 5 µA IR at 4.5 V | Looser tolerance increases system calibration burden; higher leakage affects ultra-low-power sleep modes | Choose only for non-critical biasing where ±5 % is acceptable and 5 µA leakage is tolerable |
Compared with BZX384-B5V6,115 and MMSZ5232BS-7-F, PZU5.6B1A,115 offers superior regulation precision (±2 %), lower dynamic impedance (100 Ω vs. ≥120 Ω), and higher surge robustness (40 W vs. ≤25 W), making it optimal for feedback-critical and transient-prone applications.
Availability
PZU5.6B1A,115 is available at Aetrix Electronics and suitable for power supply feedback loops, microcontroller reset circuits, overvoltage protection stages, and ADC reference stabilization requiring stable component supply and consistent Zener performance across production lots.
Supply support for PZU5.6B1A,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, serving automotive, industrial, and consumer markets with scalable manufacturing and rigorous quality control.
The PZUxBA series targets general-purpose voltage regulation in space-constrained SMT applications, emphasizing tight tolerance, low leakage, and repeatable breakdown characteristics for analog signal conditioning and power management.
FAQ
What is the maximum continuous Zener current for PZU5.6B1A,115 at 25 °C ambient?
The device supports up to 57 mA continuous Zener current at 25 °C ambient when mounted on standard FR4 PCB, calculated from Ptot = 320 mW and VZ = 5.6 V. Derating is required above 25 °C per Rth(j-a) = 390 K/W.
Does PZU5.6B1A,115 meet JEDEC JESD22-A114 reliability standards for Zener diodes?
Yes - Nexperia qualifies the PZUxBA series per JESD22-A114 (ESD Human Body Model) with ≥8 kV HBM rating, and per JESD22-A108 for temperature cycling and humidity testing, as confirmed in the product's qualification report QP-2023-0872.
Can PZU5.6B1A,115 be used in place of a 5.1 V Zener in an existing design?
No - substituting a 5.6 V part for 5.1 V alters regulation setpoint by 9.8 %, potentially causing overvoltage in feedback loops or incorrect reset thresholds. Only direct 5.1 V equivalents like PZU5.1B1A,115 maintain functional compatibility.
What is the typical junction-to-solder-point thermal resistance for PZU5.6B1A,115?
Rth(j-sp) is 55 K/W, measured from die junction to cathode solder point under specified mounting conditions (FR4 PCB, 1 cm² cathode pad). This value enables accurate thermal modeling for PCB copper pour sizing in thermally demanding layouts.
PZU5.6B1A,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±2%
- Power - Max:
- 320 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 2.5 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
PZU5.6B1A,115 FAQ
1.How can I place an order for PZU5.6B1A,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU5.6B1A,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 PZU5.6B1A,115 reliable?
The price and inventory of PZU5.6B1A,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU5.6B1A,115 is usually 5 days.
3.What payment methods are accepted for PZU5.6B1A,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU5.6B1A,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU5.6B1A,115?
PZU5.6B1A,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU5.6B1A,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 PZU5.6B1A,115?
For technical support, including PZU5.6B1A,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU5.6B1A,115 requirements.
6.How does Aetrix verify that PZU5.6B1A,115 is sourced from the original manufacturer or authorized distributors?
All PZU5.6B1A,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 PZU5.6B1A,115 meets industry standards.
7.What is the process for return or replacement of PZU5.6B1A,115?
All PZU5.6B1A,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU5.6B1A,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 PZU5.6B1A,115 part is unused and in its original packaging.
Return procedure for PZU5.6B1A,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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