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Nexperia USA Inc. PDZ22B,115
- Part No.:
- PDZ22B,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PDZ22B,115.pdf
- Description:
- DIODE ZENER 22V 400MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:6,411
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Product details
Overview
PDZ22B,115 from Nexperia is a single silicon Zener diode designed for low-power voltage regulation in space-constrained SMD applications, with a nominal Zener voltage of 22 V at 5 mA, ±2 % tolerance, 100 Ω maximum differential resistance at 5 mA, 25 μA maximum reverse current at 17 V, and 400 mW total power dissipation on FR4 PCB. It operates in general-purpose clamping and reference circuits requiring stable breakdown in consumer power supplies and sensor bias networks.
For engineers reviewing the PDZ22B,115 datasheet, PDZ22B,115 pinout, PDZ22B,115 application, or PDZ22B,115 equivalent, this device is selected for precision low-current voltage reference, overvoltage protection in 24 V rail interfaces, and compact ESD-tolerant biasing where thermal resistance (Rth(j-a) = 340 K/W) and cathode-marked SOD323 footprint are critical layout constraints.
Technical Context
This Zener diode functions as a two-terminal shunt voltage regulator, maintaining a stable reverse-biased breakdown voltage across its anode–cathode terminals under controlled current conditions. Its hard breakdown knee and low leakage (≤25 μA at VR = 17 V) support accurate threshold detection in low-quiescent circuits.
Thermal performance is defined by junction-to-ambient resistance of 340 K/W on standard FR4 PCB, limiting continuous operation to ≤25 °C ambient at full 400 mW unless derated per Figure 1. The −18.4 mV/K temperature coefficient at IZ = 5 mA indicates moderate negative drift, suitable for non-critical reference roles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 21.54 V to 22.47 V at IZ = 5 mA - defines precise clamping level for 22 V nominal rails |
| Differential Resistance (rdif) | ≤100 Ω at IZ = 5 mA - ensures minimal voltage shift under load variation |
| Reverse Current (IR) | ≤25 μA at VR = 17 V - enables low-leakage biasing in high-impedance nodes |
| Power Dissipation (Ptot) | 400 mW at Tamb ≤ 25 °C on FR4 PCB - sets maximum steady-state energy handling |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - supports use as low-drop rectifier or polarity indicator |
| Temperature Coefficient (SZ) | −18.4 mV/K at IZ = 5 mA - quantifies voltage drift with junction heating |
| Package | SOD323 (SC-76) - 1.35 mm × 0.8 mm footprint ideal for dense PCB layouts |
Pinout & Package
SOD323 plastic surface-mounted package with 2 leads; cathode identified by marking bar on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; accepts reverse breakdown current during clamping |
| 2 | Anode (A) | Connected to ground or lower-potential reference; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low dynamic impedance | 100 Ω max at 5 mA enables tight voltage regulation under varying load |
| Hard breakdown knee | Sharp transition into conduction improves threshold accuracy in protection circuits |
| Small SMD footprint | SOD323 outline (1.35 × 0.8 mm) saves board area vs. DO-35 or SOD123 |
| ±2 % voltage tolerance | Reduces need for post-production trimming in cost-sensitive consumer designs |
| Low leakage current | 25 μA max at 17 V supports high-impedance biasing without signal corruption |
Applications
| Power Supply Clamping | Sensor Bias Reference |
|---|---|
|
Use Scenario: Clamp transient spikes on 24 V DC input rails in industrial IoT gateways. IC Role / Device Role / Timing Role: Shunt regulator absorbing surge energy above 22 V threshold. Use Value: Prevents downstream LDO or MCU damage using only 1.35 mm × 0.8 mm real estate and no external bias. |
Use Scenario: Provide stable 22 V bias for photodiode amplifier feedback networks. IC Role / Device Role / Timing Role: Precision voltage reference establishing gain-setting node potential. Use Value: Enables <25 μA leakage and <100 Ω impedance to minimize offset drift in high-Z analog paths. |
| ESD Protection Interface | Microcontroller Reset Circuit |
|
Use Scenario: Protect USB-C CC line against contact-induced ESD events up to ±8 kV. IC Role / Device Role / Timing Role: Low-capacitance (84 pF) shunt clamp diverting fast transients to ground. Use Value: Maintains signal integrity with <0.9 V forward drop while surviving non-repetitive 1.3 A surges. |
Use Scenario: Generate clean reset signal when 24 V system rail drops below 20.5 V. IC Role / Device Role / Timing Role: Threshold detector triggering RC-based reset pulse generator. Use Value: Leverages sharp knee and −18.4 mV/K coefficient to deliver predictable hysteresis-free trip point. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B22 | Same SOD323 package; 22 V nominal, ±2 %, but higher rdif (120 Ω) and higher leakage (50 μA at 17 V) | Less stable under dynamic load; unsuitable for high-impedance bias | Select when cost priority outweighs leakage and impedance requirements |
| MMSZ4686 | SOD123 package (larger); 22.1 V nominal, ±5 %, rdif = 110 Ω, leakage = 50 μA at 17 V | Requires 2.5× more board area; looser tolerance increases calibration burden | Choose only if legacy SOD123 footprint compatibility is mandatory |
Compared with BZX384-B22 and MMSZ4686, PDZ22B,115 delivers superior low-current regulation stability (100 Ω rdif, 25 μA leakage) in the smallest SOD323 form factor-critical for miniaturized power management and precision analog sensing.
Availability
PDZ22B,115 is available at Aetrix Electronics and suitable for industrial power supply clamping, sensor bias reference, and ESD interface protection requiring stable component supply and consistent parametric performance across production lots.
Supply support for PDZ22B,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 optimized for efficiency, reliability, and miniaturization in high-volume electronics.
PDZ22B,115 belongs to the PDZ-B series of low-power Zener diodes engineered for general-purpose voltage regulation in space-constrained SMD designs-emphasizing tight tolerance, low leakage, and robust thermal behavior on standard PCBs.
FAQ
What is the maximum reverse voltage before breakdown for PDZ22B,115?
The guaranteed Zener voltage range is 21.54 V to 22.47 V at 5 mA test current. Below 21.54 V, reverse current remains ≤25 μA at 17 V; breakdown is not defined below this minimum specified VZ. Operation below 21.54 V places the device in sub-threshold leakage region, not regulation.
Can PDZ22B,115 be used in series for higher voltage regulation?
No-series connection of Zener diodes introduces mismatched temperature coefficients and dynamic impedances, causing uneven voltage division and thermal runaway risk. For >22 V regulation, use a single higher-voltage Zener (e.g., PDZ24B) or active regulation circuitry.
Is PDZ22B,115 suitable for automotive applications?
No-this device is not AEC-Q200 qualified, lacks automotive-grade screening, and has no specified operation beyond 125 °C junction temperature. Nexperia explicitly states non-automotive qualification in the legal disclaimers; use only in commercial/industrial environments.
How does the SOD323 package affect thermal performance?
Mounted on standard FR4 PCB, PDZ22B,115 exhibits Rth(j-a) = 340 K/W. At 400 mW dissipation, this yields ~136 °C junction rise above ambient-requiring strict ambient limits (<25 °C) or derating. Thermal relief pads or copper pours reduce Rth(j-a) but are not characterized in the datasheet.
PDZ22B,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- PDZ-B
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 22 V
- Tolerance:
- ±2%
- Power - Max:
- 400 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:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
PDZ22B,115 FAQ
1.How can I place an order for PDZ22B,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ22B,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 PDZ22B,115 reliable?
The price and inventory of PDZ22B,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ22B,115 is usually 5 days.
3.What payment methods are accepted for PDZ22B,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ22B,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ22B,115?
PDZ22B,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ22B,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 PDZ22B,115?
For technical support, including PDZ22B,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ22B,115 requirements.
6.How does Aetrix verify that PDZ22B,115 is sourced from the original manufacturer or authorized distributors?
All PDZ22B,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 PDZ22B,115 meets industry standards.
7.What is the process for return or replacement of PDZ22B,115?
All PDZ22B,115 units undergo pre-shipment inspection (PSI). If there is an issue with PDZ22B,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 PDZ22B,115 part is unused and in its original packaging.
Return procedure for PDZ22B,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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