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Nexperia USA Inc. PDZ15BZ
- Part No.:
- PDZ15BZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PDZ15BZ.pdf
- Description:
- DIODE ZENER 15V 400MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:29,846
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Product details
Overview
PDZ15BZ from Nexperia is a single Zener diode designed for low-power voltage regulation in space-constrained SMD applications, featuring a nominal Zener voltage of 14.66 V (min 14.34 V, max 14.98 V) at IZ = 5 mA, ±2 % tolerance, 80 Ω maximum differential resistance, and 0.05 μA reverse leakage at VR = 11.0 V - deployed in power supply reference rails and analog sensor biasing circuits.
For engineers reviewing the PDZ15BZ datasheet, PDZ15BZ pinout, PDZ15BZ application, or PDZ15BZ equivalent, this device is selected for precision low-current voltage clamping, ESD-protected signal line regulation, and compact board-level voltage reference design where thermal resistance (Rth(j-a) = 340 K/W) and SOD323 footprint compatibility are critical.
Technical Context
This Zener diode operates in reverse breakdown mode with hard knee characteristics, optimized for stable regulation at low test currents (IZ = 5 mA). Its temperature coefficient is +11.4 mV/K, indicating positive drift with junction temperature - suitable for applications requiring predictable upward voltage shift under thermal load.
Designed for surface-mount assembly on FR4 PCBs with standard solder footprint, it delivers 400 mW total power dissipation at Tamb ≤ 25 °C and derates linearly above that point. The cathode-marked SOD323 package supports reflow and wave soldering per defined land patterns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 14.34 V to 14.98 V at IZ = 5 mA - defines tight regulation window for 15 V nominal rail stabilization |
| Differential Resistance rdif | ≤ 80 Ω - ensures minimal output voltage variation under small load current changes |
| Reverse Leakage IR | ≤ 0.05 μA at VR = 11.0 V - enables ultra-low standby power loss in battery-backed circuits |
| Forward Voltage VF | ≤ 0.9 V at IF = 10 mA - supports use as forward-biased clamp or protection diode without excessive drop |
| Power Dissipation Ptot | 400 mW at Tamb = 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Thermal Resistance Rth(j-a) | 340 K/W - determines junction-to-ambient temperature rise per watt, critical for thermal margin in sealed enclosures |
| Package | SOD323 (SC-76) - 1.35 mm × 0.8 mm footprint with cathode bar marking, compatible with 0402-class pick-and-place |
Pinout & Package
SOD323 plastic surface-mounted package: 2-terminal, cathode-bar marked, 1.35 mm × 0.8 mm body size, 0.4 mm lead pitch, 0.25 mm thickness - optimized for high-density PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (marked side) | Cathode (K) | Connected to regulated output node; reverse-biased during Zener operation; marking bar identifies this terminal |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path for regulation current flow |
Key Features
| Feature | Design Value |
|---|---|
| Low dynamic impedance at low current | 80 Ω max at IZ = 5 mA - improves regulation accuracy in micro-power sensor interfaces |
| Hard breakdown knee | Sharp, well-defined reverse conduction onset - reduces ambiguity in threshold detection circuits |
| Ultra-low leakage current | 0.05 μA max at 11.0 V - preserves battery life in always-on monitoring systems |
| ±2 % voltage tolerance | Tight initial calibration without post-manufacturing trimming - lowers BOM cost in volume production |
| SOD323 footprint compatibility | Standardized 0402-equivalent land pattern - enables reuse of placement and reflow profiles across Zener families |
Applications
| Industrial Sensor Biasing | USB Port Overvoltage Clamp |
|---|---|
|
Use Scenario: Providing stable 15 V reference to MEMS pressure sensor excitation circuitry in factory-floor transmitters. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference potential independent of supply ripple. Use Value: 80 Ω rdif limits reference drift to <±10 mV over 100 μA load variation, ensuring <0.1 % full-scale error. |
Use Scenario: Clamping D+ line voltage during hot-plug events on embedded USB 2.0 host ports. IC Role / Device Role / Timing Role: Standby reverse-biased Zener absorbing transient surges above 15 V while remaining non-conductive below. Use Value: 0.05 μA leakage prevents false enumeration; 400 mW rating handles 100 ms overvoltage without degradation. |
| Low-Power RTC Backup Regulator | Op-Amp Reference Stabilizer |
|
Use Scenario: Generating clean 15 V bias for real-time clock oscillator circuitry powered from coin-cell battery. IC Role / Device Role / Timing Role: Low-current Zener regulator maintaining oscillator VCC despite battery voltage decay from 3.0 V to 2.0 V. Use Value: +11.4 mV/K temperature coefficient compensates for crystal frequency drift, improving timekeeping stability. |
Use Scenario: Setting precise gain-setting node voltage for instrumentation amplifier used in medical ECG front-end. IC Role / Device Role / Timing Role: Shunt reference establishing fixed common-mode voltage for differential input stage. Use Value: ±2 % VZ tolerance ensures <±0.5 % gain error; 14.66 V nominal avoids op-amp rail saturation in ±15 V supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55-C15 | Through-hole DO-35 package; 5 % tolerance; 100 Ω rdif; 500 mW Ptot | Requires through-hole assembly; higher leakage (5 μA); less suitable for high-density PCBs | Select when legacy through-hole layout or higher power margin is required, not for new SMD designs |
| MMSZ5245B | SOD-123 package; ±5 % tolerance; 17 Ω rdif at 20 mA; 500 mW Ptot | Lower impedance but looser tolerance; rated at higher test current (20 mA), shifting operating point | Prefer for tighter regulation at >10 mA loads; avoid if 5 mA biasing or ±2 % spec is mandatory |
Compared with BZX55-C15 and MMSZ5245B, PDZ15BZ offers superior tolerance and SMD compatibility at moderate power, making it optimal for modern compact designs requiring predictable low-current regulation without trade-offs in accuracy or footprint.
Availability
PDZ15BZ is available at Aetrix Electronics and suitable for industrial sensor biasing, USB port protection, low-power RTC backup regulation, and op-amp reference stabilization requiring stable component supply and consistent parametric performance across production batches.
Supply support for PDZ15BZ 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 specializing in high-volume, high-reliability discrete and logic devices, with manufacturing rooted in process control and automotive-grade quality systems.
PDZ-B series Zener diodes are part of Nexperia's precision low-power analog portfolio, engineered specifically for stable voltage reference and clamping in space-constrained consumer, industrial, and computing applications.
FAQ
What is the maximum reverse current before breakdown for PDZ15BZ?
The PDZ15BZ exhibits ≤0.05 μA reverse leakage at VR = 11.0 V, confirming negligible conduction well below its 14.34 V minimum Zener voltage. Breakdown onset occurs sharply near 14.3 V with hard knee behavior, as verified in Figure 7 of the datasheet under 25 °C conditions.
Can PDZ15BZ be used in parallel for higher power handling?
No - Zener diodes cannot be reliably paralleled due to mismatched breakdown voltages causing current hogging. The PDZ15BZ is rated for 400 mW on FR4 PCB; for higher power, use a single higher-rated device like PZTA44 or redesign with active regulation.
Is PDZ15BZ suitable for automotive applications?
No - PDZ15BZ is not AEC-Q200 qualified. Nexperia explicitly states in Section 14 of the datasheet that non-automotive qualified products are unsuitable for automotive use, and no automotive testing or qualification data is provided for this part.
How does temperature affect PDZ15BZ's Zener voltage?
PDZ15BZ has a temperature coefficient of +11.4 mV/K at IZ = 5 mA, meaning its Zener voltage increases by ~11.4 mV per degree Celsius rise in junction temperature - a predictable positive drift useful for compensating other temperature-sensitive components.
PDZ15BZ 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):
- 15 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 11 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
PDZ15BZ FAQ
1.How can I place an order for PDZ15BZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ15BZ 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 PDZ15BZ reliable?
The price and inventory of PDZ15BZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ15BZ is usually 5 days.
3.What payment methods are accepted for PDZ15BZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ15BZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ15BZ?
PDZ15BZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ15BZ 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 PDZ15BZ?
For technical support, including PDZ15BZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ15BZ requirements.
6.How does Aetrix verify that PDZ15BZ is sourced from the original manufacturer or authorized distributors?
All PDZ15BZ 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 PDZ15BZ meets industry standards.
7.What is the process for return or replacement of PDZ15BZ?
All PDZ15BZ units undergo pre-shipment inspection (PSI). If there is an issue with PDZ15BZ, 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 PDZ15BZ part is unused and in its original packaging.
Return procedure for PDZ15BZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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