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Nexperia USA Inc. PZU22BA,115
- Part No.:
- PZU22BA,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PZU22BA,115.pdf
- Description:
- DIODE ZENER 22V 320MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:3,245
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Product details
Overview
PZU22BA,115 from Nexperia is a general-purpose Zener voltage regulator diode in SOD323 (SC-76) package, designed for precision voltage reference and overvoltage protection in low-power analog circuits. It delivers a nominal 22 V Zener voltage with ±2 % tolerance (B2 series), 100 Ω maximum differential resistance at IZ = 5 mA, 25 nA reverse current at IZ = 0.5 mA, and operates up to 150 °C junction temperature - deployed in power supply feedback loops and sensor biasing networks.
For engineers reviewing the PZU22BA,115 datasheet, PZU22BA,115 pinout, PZU22BA,115 application, or PZU22BA,115 equivalent, key selection criteria include Zener voltage accuracy, dynamic impedance at regulation current, thermal resistance to ambient (255 K/W on 1 cm² cathode pad), and non-repetitive surge capability (17 A peak reverse current).
Technical Context
This Zener diode operates in reverse breakdown mode with hard knee characteristics optimized for stable voltage reference under low-current conditions (IZ = 5 mA). Its differential resistance of ≤100 Ω ensures minimal output voltage variation across load changes in shunt regulation topologies.
The device exhibits a positive temperature coefficient of +1.3 mV/K at 22 V, enabling predictable drift compensation in temperature-sensitive references. Thermal resistance from junction to solder point is 55 K/W, supporting reliable operation on standard FR4 PCBs with tin-plated copper.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 22 V nominal, ±2 % tolerance (B2 series) - ensures tight regulation in feedback networks requiring <±0.44 V deviation. |
| Differential Resistance rdif | ≤100 Ω at IZ = 5 mA - maintains stable output voltage under small load variations in shunt regulators. |
| Reverse Current IR | ≤25 nA at IZ = 0.5 mA - minimizes standby power loss in battery-powered voltage reference circuits. |
| Non-repetitive Peak Reverse Current IZSM | 17 A (tp = 100 µs) - provides transient overvoltage clamping capability without device failure. |
| Total Power Dissipation Ptot | 320 mW at Tamb ≤ 25 °C on standard FR4 - defines continuous DC power handling in compact SMD layouts. |
| Junction Temperature Tj | 150 °C maximum - enables use in industrial environments with elevated ambient temperatures. |
| Thermal Resistance Rth(j-sp) | 55 K/W to solder point - allows accurate thermal modeling when mounted on defined cathode pad area. |
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; marking bar identifies this terminal for correct PCB orientation. |
| 2 | Anode | Connected to ground or lower-potential rail; completes reverse-bias path during Zener conduction. |
Key Features
| Feature | Design Value |
|---|---|
| Low dynamic impedance at low current | 100 Ω max at 5 mA enables precise voltage reference in micro-power applications. |
| Hard breakdown knee | Sharp turn-on characteristic reduces regulation hysteresis in feedback control loops. |
| Optimized leakage for noise reduction | Controlled 25 nA IR at 0.5 mA supports low-noise analog signal conditioning. |
| High surge robustness | 40 W non-repetitive peak power rating (100 µs pulse) protects downstream circuitry from transients. |
| Small-outline SMD compatibility | SOD323 footprint allows high-density placement in space-constrained consumer and industrial PCBs. |
Applications
| Power Supply Feedback Reference | Sensor Biasing Network |
|---|---|
Use Scenario: Stabilizing output voltage in isolated flyback or buck-derived auxiliary supplies. IC Role / Device Role / Timing Role: Shunt voltage reference providing error signal to optocoupler or TL431 comparator input. Use Value: ±2 % VZ tolerance and 100 Ω rdif ensure <±1 % output regulation accuracy under line/load variation. |
Use Scenario: Providing stable excitation voltage to resistive temperature detectors (RTDs) or bridge sensors. IC Role / Device Role / Timing Role: Precision voltage source establishing known bias point independent of supply ripple. Use Value: 25 nA reverse current prevents loading errors in high-impedance sensor interfaces. |
| Overvoltage Clamp Protection | ADC Reference Stabilization |
Use Scenario: Safeguarding microcontroller I/O pins or analog front-end inputs against ESD or surge events. IC Role / Device Role / Timing Role: Transient voltage suppressor diverting excess energy to ground during fast-rising spikes. Use Value: 17 A IZSM rating handles 100 µs surges without degradation, preserving system reliability. |
Use Scenario: Generating clean, low-drift reference for 12-bit+ SAR or delta-sigma ADCs in data acquisition modules. IC Role / Device Role / Timing Role: Low-noise Zener source replacing higher-cost bandgap references where 22 V headroom is available. Use Value: +1.3 mV/K temperature coefficient enables predictable calibration offset correction across 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 |
|---|---|---|---|
| BZX84-C22 | ±5 % tolerance (vs. ±2 %), 130 Ω rdif, 100 nA IR at 0.5 mA | Lower accuracy and higher impedance reduce regulation stability in precision feedback paths. | Select when cost sensitivity outweighs voltage accuracy requirements in non-critical clamping roles. |
| MMSZ5247B | SOD-123 package (larger footprint), 20 V nominal, ±5 %, 23 Ω rdif but only rated to 500 mW Ptot | Higher power dissipation margin but incompatible pin layout and different voltage grade. | Choose only if board redesign accommodates larger package and 20 V regulation suffices. |
Compared with BZX84-C22 and MMSZ5247B, PZU22BA,115 offers superior voltage accuracy and lower leakage in the smallest SOD323 footprint, making it optimal for space-constrained, high-stability shunt references - whereas alternatives trade precision for cost or power handling.
Availability
PZU22BA,115 is available at Aetrix Electronics and suitable for power supply feedback references, sensor biasing networks, overvoltage clamp protection, and ADC reference stabilization requiring stable component supply across industrial, automotive, and consumer electronics programs.
Supply support for PZU22BA,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 logic, discrete, and MOSFET solutions with focus on efficiency, reliability, and miniaturization for mass-market electronics.
PZU22BA,115 belongs to the PZUxBA series of general-purpose Zener diodes engineered for precision voltage regulation in compact, surface-mounted power management and protection circuits.
FAQ
What is the Zener voltage tolerance for PZU22BA,115?
PZU22BA,115 uses the B2 tolerance series, specifying a nominal 22 V Zener voltage with ±2 % deviation (21.56 V to 22.44 V) at IZ = 5 mA and Tj = 25 °C. This tighter tolerance than standard ±5 % Zeners supports higher-accuracy regulation in feedback loops and reference designs.
Can PZU22BA,115 be used in place of a 20 V Zener diode?
No - PZU22BA,115 is specifically rated for 22 V nominal Zener voltage and is not interchangeable with 20 V devices like MMSZ5247B. Substituting alters regulation setpoint by 10 %, potentially causing overvoltage or undervoltage in feedback circuits and invalidating loop stability margins.
What is the maximum continuous forward current rating?
The absolute maximum forward current is 200 mA per limiting values table. However, forward conduction is not its intended operating mode; sustained forward bias exceeds thermal limits and risks permanent degradation. It must operate in reverse-biased Zener region for regulation.
How does the temperature coefficient affect long-term stability?
At 22 V, PZU22BA,115 has a +1.3 mV/K temperature coefficient, meaning output voltage rises ~28.6 mV over a 22 °C ambient increase. This predictable drift enables software-based compensation in calibrated systems but requires thermal shielding in ultra-stable references.
PZU22BA,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):
- 22 V
- Tolerance:
- ±5%
- 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
PZU22BA,115 FAQ
1.How can I place an order for PZU22BA,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU22BA,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 PZU22BA,115 reliable?
The price and inventory of PZU22BA,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU22BA,115 is usually 5 days.
3.What payment methods are accepted for PZU22BA,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU22BA,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU22BA,115?
PZU22BA,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU22BA,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 PZU22BA,115?
For technical support, including PZU22BA,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU22BA,115 requirements.
6.How does Aetrix verify that PZU22BA,115 is sourced from the original manufacturer or authorized distributors?
All PZU22BA,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 PZU22BA,115 meets industry standards.
7.What is the process for return or replacement of PZU22BA,115?
All PZU22BA,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU22BA,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 PZU22BA,115 part is unused and in its original packaging.
Return procedure for PZU22BA,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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