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Nexperia USA Inc. PZU22B1A,115
- Part No.:
- PZU22B1A,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PZU22B1A,115.pdf
- Description:
- DIODE ZENER 22V 320MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:4,214
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Product details
Overview
PZU22B1A,115 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 22 V nominal working voltage, 320 mW total power dissipation at 25 °C ambient, and 18.4 A non-repetitive peak reverse current under 100 µs surge. It delivers low dynamic impedance (≤100 Ω at IZ = 5 mA), tight temperature coefficient (±1.3 mV/K), and is used for precision voltage reference and overvoltage protection in low-power analog circuits.
For engineers reviewing the PZU22B1A,115 datasheet, PZU22B1A,115 pinout, PZU22B1A,115 application, or PZU22B1A,115 equivalent, this device serves as a stable, surface-mount Zener solution where ±2 % regulation accuracy, fast transient response, and minimal leakage (≤25 nA at 0.5 mA) are required in space-constrained designs.
Technical Context
This Zener diode operates in reverse breakdown mode with hard knee characteristics optimized for stable reference generation. Its differential resistance remains ≤100 Ω at 5 mA test current, ensuring minimal output voltage variation under load shifts.
The device exhibits a temperature coefficient of ±1.3 mV/K across its operating range, enabling predictable drift compensation in bias networks. Its 1.3 mm pitch, 1.7 mm × 1.25 mm × 0.95 mm SOD323 footprint supports high-density PCB layouts while maintaining thermal resistance of 255 K/W to solder point.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 22 V - precise regulation point at IZ = 5 mA, ±2 % tolerance ensures stable reference in feedback loops |
| Total Power Dissipation | 320 mW - maximum continuous power at Tamb ≤ 25 °C on FR4 PCB with standard footprint |
| Non-repetitive Peak Reverse Current | 18.4 A - surge handling capability for 100 µs square wave, enabling transient overvoltage clamping |
| Differential Resistance | ≤100 Ω - low impedance at IZ = 5 mA ensures minimal voltage shift under varying load currents |
| Reverse Current | ≤25 nA at VR = 0.5 × VZ - ultra-low leakage preserves signal integrity in high-impedance bias networks |
| Temperature Coefficient | ±1.3 mV/K - predictable voltage drift vs. temperature, supporting accurate thermal compensation |
| Forward Voltage | 1.1 V at IF = 100 mA - low conduction loss when used in series forward-path configurations |
Pinout & Package
SOD323 (SC-76) plastic surface-mount package: 2-pin, 1.3 mm pitch, 1.7 mm × 1.25 mm × 0.95 mm body; 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; defines reverse-bias orientation for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables tighter regulation than ±5 % variants, reducing need for post-calibration in precision references |
| Low dynamic impedance (≤100 Ω) | Maintains stable output voltage under rapid load transients in sensor biasing and ADC reference circuits |
| Ultra-low reverse leakage (≤25 nA) | Minimizes error current in high-impedance divider networks and battery-monitoring inputs |
| Hard breakdown knee | Ensures sharp, predictable turn-on behavior critical for overvoltage clamp reliability |
| SOD323 footprint compatibility | Supports automated placement and reflow soldering in compact consumer and industrial PCBs |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 22 V reference for linear regulator feedback or ADC voltage scaling in low-power instrumentation. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference potential relative to ground. Use Value: ±2 % tolerance and ≤100 Ω dynamic impedance ensure reference stability within 0.44 V across production units and load variations. |
Use Scenario: Protecting microcontroller I/O pins from ESD-induced voltage spikes exceeding 22 V in industrial control interfaces. IC Role / Device Role / Timing Role: Fast-acting shunt clamp that conducts only above 22 V threshold, diverting surge energy to ground. Use Value: 18.4 A peak current rating and hard knee enable reliable clamping without thermal runaway during 100 µs transients. |
| Sensor Bias Network | Current Source Stabilization |
Use Scenario: Biasing a photodiode or RTD bridge in a battery-powered environmental sensor node. IC Role / Device Role / Timing Role: Voltage reference element establishing fixed bias point for analog front-end circuitry. Use Value: ≤25 nA reverse leakage prevents loading of high-impedance sensor elements, preserving measurement accuracy. |
Use Scenario: Stabilizing the reference voltage for a two-terminal current source driving LED arrays in signage applications. IC Role / Device Role / Timing Role: Shunt regulator defining compliance voltage for constant-current generator topology. Use Value: ±1.3 mV/K temperature coefficient allows predictable current drift compensation across -40 °C to +85 °C operating range. |
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-B22,115 | Same 22 V ±2 % rating, but higher typical dynamic resistance (120 Ω vs. ≤100 Ω) and higher leakage (≤50 nA vs. ≤25 nA) | Less suitable for ultra-low-leakage bias networks; acceptable for general-purpose clamping | Select when cost sensitivity outweighs leakage or impedance requirements |
| MMSZ5247B-7-F | 22 V ±5 % tolerance, larger SOD-123 package (2.7 mm × 1.6 mm), higher Ptot (500 mW), but looser tolerance and higher rdif (150 Ω) | Better thermal margin in high-ambient environments, but reduced regulation accuracy | Select when board space permits larger footprint and ±5 % tolerance is acceptable |
Compared with BZX384-B22,115 and MMSZ5247B-7-F, PZU22B1A,115 offers superior regulation precision, lower leakage, and smaller footprint-making it optimal for space-constrained, high-accuracy analog designs where thermal budget is moderate.
Availability
PZU22B1A,115 is available at Aetrix Electronics and suitable for precision voltage reference, overvoltage protection, and sensor biasing applications requiring stable component supply, consistent parametric performance, and long-term obsolescence management.
Supply support for PZU22B1A,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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, miniaturization, and automotive-grade robustness.
PZUxBA series belongs to Nexperia's general-purpose Zener regulator portfolio, engineered for stable voltage reference and transient suppression in consumer, industrial, and communication equipment with strict size and accuracy demands.
FAQ
What is the maximum continuous power dissipation for PZU22B1A,115?
The maximum continuous power dissipation is 320 mW at ambient temperature ≤25 °C when mounted on an FR4 PCB with single-sided copper, tin-plated, and standard SOD323 footprint. Derating is required above 25 °C per the thermal resistance specification of 255 K/W to solder point.
How does the ±2 % tolerance affect circuit design compared to ±5 % Zeners?
The ±2 % tolerance reduces initial voltage error from ±1.1 V to ±0.44 V at 22 V, minimizing calibration overhead in precision references and improving consistency across production batches in feedback networks and analog signal chains.
Can PZU22B1A,115 be used in place of a 22 V Zener with different package types?
Yes, provided the PCB layout accommodates the SOD323 (1.7 mm × 1.25 mm) footprint and thermal constraints are met. It is not a direct drop-in replacement for larger packages like DO-35 or SOD-123 without layout revision, due to differing thermal resistance and solder pad geometry.
What is the significance of the 'B1' suffix in PZU22B1A,115?
The 'B1' suffix denotes the ±2 % Zener voltage tolerance grade within the PZUxBA series. It also indicates optimized electrical characteristics-including lower dynamic impedance and tighter temperature coefficient-compared to 'B' (±5 %) variants of the same nominal voltage.
PZU22B1A,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):
- 22 V
- Tolerance:
- ±2%
- Power - Max:
- 320 mW
- Impedance (Max) (Zzt):
- 25 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 17 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
PZU22B1A,115 FAQ
1.How can I place an order for PZU22B1A,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU22B1A,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 PZU22B1A,115 reliable?
The price and inventory of PZU22B1A,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU22B1A,115 is usually 5 days.
3.What payment methods are accepted for PZU22B1A,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU22B1A,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU22B1A,115?
PZU22B1A,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU22B1A,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 PZU22B1A,115?
For technical support, including PZU22B1A,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU22B1A,115 requirements.
6.How does Aetrix verify that PZU22B1A,115 is sourced from the original manufacturer or authorized distributors?
All PZU22B1A,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 PZU22B1A,115 meets industry standards.
7.What is the process for return or replacement of PZU22B1A,115?
All PZU22B1A,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU22B1A,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 PZU22B1A,115 part is unused and in its original packaging.
Return procedure for PZU22B1A,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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